ECU's......Pros and cons

7th May 2011, 17:46

Omex 600 or Predator (when available in 3 plug) what would you choose and why??

All opinions are very welcome.....and negative comments about each are also appreciated..........discuss.

7th May 2011, 17:52

from my experience of the predator James it was perfect for what I wanted on my low boost turbo setup cut the cost down on having to get a custom loom and extra sensors sorted plus Andy knows the system that well road mapping was done in 2hrs. Also when on r/r the guy commented that graph was very smooth and further tuning on r/r would probably yield another 10bhp/flb tops.

Only bad thing I'd say is that it has no VSS so when coming to roundabouts and junctions if you use engine breaking to slow down and then go into neutral like you normally would the car will stall but it's easy to get around that as you just knock the car into neutral before you stop and no problems. Otherwise driving is normal and you do everything as you would not like you be mindless and coast everywere, you can pretty much as anyone with a predator on this

7th May 2011, 17:55

i like the omex and is what i would have if i wasnt running a kms setup atm, i like the fact that you can really tidy the engine bay up and have minimal wiring, theres more people that can map them if you need to which will do both rolling road and on road mapping as opposed to doing it over the net if you have a problem, not to clued up on the predator ecu so cant really comment on what they're like

7th May 2011, 17:55

No ECU At all.

I've had enough of ECU's lol.

7th May 2011, 20:29

Omex would be better for the hidden look maybe the thing you would really like. As your a whore!!!

But if you dnt fancy spending 2k for fitting and mapping then yes the predator is very good and well made ecu.

Predator is a good ecu and well price.

Omex is one of the best on the Market and alot of mappers like the software.

Mate like always pick a mapper, I.e. NMS, atspeed Ect.... See which system they like the best.

7th May 2011, 21:35

totally depends on what you want the ecu to run... nd what you may want it t run in the future

7th May 2011, 22:12

What about the DTA ECU's?
there what Sandy uses with most his engines

Or theres Emerald too? Same as what Ryan has, and toad/lea

7th May 2011, 22:29

omex omex omex omex OMEX!!!!!!

...

if you get my point

- colin

7th May 2011, 22:53

if ur willing to spend the time any ecu can be relocated inside the car.(my predator ecu currently sitting under my dash)

i am currently running the predator with my supercharger, andy definantly knows his stuff and after mapping yesterday the ecu is certainly upto the job.

also have a friend running dta and another with the omex and both praise them.
like already said would choose the ecu best for ur needs and the best choice for who will be mapping the car.
as everyone has a favoured system.

7th May 2011, 22:56

Quote:

Originally Posted by Sophia_Bush

from my experience of the predator James it was perfect for what I wanted on my low boost turbo setup cut the cost down on having to get a custom loom and extra sensors sorted plus Andy knows the system that well road mapping was done in 2hrs. Also when on r/r the guy commented that graph was very smooth and further tuning on r/r would probably yield another 10bhp/flb tops.

Only bad thing I'd say is that it has no VSS sensor so when coming to roundabouts and junctions if you use engine breaking to slow down and then go into neutral the car will stall but it's easy to get around that as you just knock the car into neutral and no problems.

No VSS? Thats a joke.I couldn't imagine coasting around corners LOL. That IMHO is a major failage.

7th May 2011, 23:05

I would go Omex personally - big name in the business, tried and tested.

7th May 2011, 23:47

Quote:

Originally Posted by Sophia_Bush

from my experience of the predator James it was perfect for what I wanted on my low boost turbo setup cut the cost down on having to get a custom loom and extra sensors sorted plus Andy knows the system that well road mapping was done in 2hrs. Also when on r/r the guy commented that graph was very smooth and further tuning on r/r would probably yield another 10bhp/flb tops.

Only bad thing I'd say is that it has no VSS so when coming to roundabouts and junctions if you use engine breaking to slow down and then go into neutral like you normally would the car will stall but it's easy to get around that as you just knock the car into neutral before you stop and no problems. Otherwise driving is normal and you do everything as you would not like you be mindless and coast everywere, you can pretty much as anyone with a predator on this

Yeap ive experienced this on Danny Halls car...........agree its a huge pain in the ass.

Quote:

Originally Posted by rorz_vts

i like the omex and is what i would have if i wasnt running a kms setup atm, i like the fact that you can really tidy the engine bay up and have minimal wiring, theres more people that can map them if you need to which will do both rolling road and on road mapping as opposed to doing it over the net if you have a problem, not to clued up on the predator ecu so cant really comment on what they're like

Cheers dude.

Quote:

Originally Posted by AndySAXO

Omex would be better for the hidden look maybe the thing you would really like. As your a whore!!!

But if you dnt fancy spending 2k for fitting and mapping then yes the predator is very good and well made ecu.

Predator is a good ecu and well price.

Omex is one of the best on the Market and alot of mappers like the software.

Mate like always pick a mapper, I.e. NMS, atspeed Ect.... See which system they like the best.

Thanks Andy......tbh im not too concerned about it being hidden as the omex especially is a very small unit.

Quote:

Originally Posted by benkelsall

What about the DTA ECU's?
there what Sandy uses with most his engines

Or theres Emerald too? Same as what Ryan has, and toad/lea

Valid point.....just seem to hear alot more about the two i mentioned.

Quote:

Originally Posted by atspeedracing

omex omex omex omex OMEX!!!!!!

...

if you get my point

- colin

I can see this being the one i go for and you guys will definatly be getting the job.

Quote:

Originally Posted by adzvtr

if ur willing to spend the time any ecu can be relocated inside the car.(my predator ecu currently sitting under my dash)

i am currently running the predator with my supercharger, andy definantly knows his stuff and after mapping yesterday the ecu is certainly upto the job.

also have a friend running dta and another with the omex and both praise them.
like already said would choose the ecu best for ur needs and the best choice for who will be mapping the car.
as everyone has a favoured system.

Cheers dude.

Quote:

Originally Posted by LeeumH

I would go Omex personally - big name in the business, tried and tested.

Agreed LeeumH....very valid point.

7th May 2011, 23:51

Quote:

Originally Posted by Sophia_Bush

Only bad thing I'd say is that it has no VSS so when coming to roundabouts and junctions if you use engine breaking to slow down and then go into neutral like you normally would the car will stall but it's easy to get around that as you just knock the car into neutral before you stop and no problems. Otherwise driving is normal and you do everything as you would not like you be mindless and coast everywere, you can pretty much as anyone with a predator on this

No vehicle speed sensor on the pred? really?!

8th May 2011, 00:19

No, there's no vehicle speed sensor input unfortunately, this means the ECU needs carefully setting up to cope with when to go into closed loop idle. It can usually be sorted out pretty well, infact the latest firmware has sorted out the problems described by Gavin (Sophia_Bush) and Dannyhall (who had a very old firmware version) so don't happen anymore!

I guess if you want to pay more than double you've got to get something for your money

I do this ECU project to give people options, I'm not in competition with Omex (or Atspeed!) I'm not in the "over £1000" league so there's not really a comparison.

I give people access to engine management who otherwise would hit a brick-wall in their tuning plans due to the costs.

Weigh up the pro's and con's of the ECU and then compare that with your budget and you'll choose the right one for your application

Andy

8th May 2011, 00:51

Quote:

Originally Posted by luthor1

No, there's no vehicle speed sensor input unfortunately, this means the ECU needs carefully setting up to cope with when to go into closed loop idle. It can usually be sorted out pretty well, infact the latest firmware has sorted out the problems described by Gavin (Sophia_Bush) and Dannyhall (who had a very old firmware version) so don't happen anymore!

Andy

That's really good to know Andy

8th May 2011, 00:58

when do you think the 3 plug verion will be ready ?

8th May 2011, 01:48

check my section out for updates in that department, this isn't a thread to be hijacked

Andy

8th May 2011, 03:11

I've gone for the pred just for cost, if i had the money to get a omex setup i would have simply because you can take it with you to your next car.

8th May 2011, 08:07

To be fair I dnt have that problem on my car, with bodies it alot better than the standard inlet with icv.

Also you shouldn't be coasting anyway!!

Drive the car more like a bike and you will not have the problem

8th May 2011, 08:43

Quote:

Originally Posted by luthor1

No, there's no vehicle speed sensor input unfortunately, this means the ECU needs carefully setting up to cope with when to go into closed loop idle. It can usually be sorted out pretty well, infact the latest firmware has sorted out the problems described by Gavin (Sophia_Bush) and Dannyhall (who had a very old firmware version) so don't happen anymore!

Andy

That's good to know, but I really don't understand why you can't use the sensor thats already there from standard?!

Quote:

Originally Posted by AndySAXO

To be fair I dnt have that problem on my car, with bodies it alot better than the standard inlet with icv.

Also you shouldn't be coasting anyway!!

Drive the car more like a bike and you will not have the problem

If you going into a corner at 100+ mph and have to brake down to 40mph, you will want to use engine braking, engine braking is a usefull tool we can use even using standard ecu.

Without engine breaking I dont see how you can use the full potential of the car without engine braking.

Lets not compare bikes to cars, totally different in every way.

And just for the record, i know how to drive and never 'coast'!

8th May 2011, 09:12

Yer my point I use the engine to brake also heal and toe, which is the sane pricable as how to ride a bike.

I.e. Never coasting, should never coast.

I know how to drive correctly, I am talking more about driving on the track as not many people will healnand toe on a daily engine even though it better for the engine and braking.

8th May 2011, 09:43

I heel toe most of the time
Mainly as its just a lot nicer on everything

On topic
Omex 600 its a good ecu can run pretty much all the oe sensors or just tps (which is how i have mine) the looms can be made very tidy and im not even running a wideband on my car its perfect
doing the cutom looms means ecu can go anywere you like (mines replaced the airbag ecu but another common spot is in the glovebox) meaning a lot tidier in the bay

Emerald is decent again custom looms but ive seen a few have issues like ryans (notsure what that ended up being wrong) but for ages he thought ecu

Pred i heard about the old ones and saw a few on cars at shows and thought id personallyrather spend out on a full on ecu rather than the more budget option but for the money its allright

Kms not dealt with so cant comment never really looked at the.

8th May 2011, 10:02

A bloke on 106rallyeforum/saxosportsclub was doing dta ecu's in an old oem Ecu for a fair price, could be an option as would be a matter of simply plugging it in and mapping.

If I was going for a bodied, or FI car id go with the Predator myself and get an hour or so on the dyno to complete the map. Until I know more about the electronic side of Ecus, and the pros and cons of the parts in a Predator vs Omex/dta to re-evaluate things, I'm on the Predator side of the fence!

I don't understand about this vehicle speed sensor? When I had the Predator on my bodied car I could coast and it wouldn't stall

8th May 2011, 10:18

So....the predator can be mapped on a rolling road by other companies then??

Sorry for being the noob but i only thought it could be road mapped by Andy??

All comes down to when the predator will be ready i guess........Andy, you have PM.

8th May 2011, 10:25

Quote:

Originally Posted by J222JRA

So....the predator can be mapped on a rolling road by other companies then??

Sorry for being the noob but i only thought it could be road mapped by Andy??

All comes down to when the predator will be ready i guess........Andy, you have PM.

Aslong as the mapper has the software and knowledge to map it then anyone can map it on a rolling road.

8th May 2011, 10:28

firstly you shouldn,t drive like that freewheeling ,but the ecu no matter what type should be able to be set to cope --just more time needs to be spent on idle and low throttle settings
no need for a vss--its only the last 10 years or so ecu,s have had it on std cars .
this is not a dig at andy ,but you cannot expect him to get all these intricates settings correct ,on cars with different specs by mappng on the road for a short time --spend more money on the installation +mapping is the answer ,no matter what ecu system .
I see no real advantage of having the std idle control device on a highely tuned car ,as they are not very reliable on std ones + if t/bodies you cannot have one anyway,and how many of you when fitting NEW ecu systems also fit NEW devices like the stepper motor at same time --not many I am guessing -you want perfect running like a std car --then don,t fit too wild camshafts and fit all new components+ wiring loom at same time as ecu --everything wears out and the youngest a saxo can be now is 8-9 years old.
all ecu,s have their + points and .also downsides ,
unless you have deep pockets and lots of time to perfect the mapping .FOR ALL AMBIENT conditons summer + winter then there will be compromises
why do think that VVT is now common on std cars --to give the best of both low rpm + highrpm high power requirements
your question on which ecu is best is not an easily answerd one without also knowing the proposed FINAL spec of the engine + use it is to be put to .
the stalling on overunn could even be as simple as open air filter under bonnet. wheres the air tempsensor fitted? --you shut off and inlet temp climbs very quickly with heat from ex manifold and totally alters fuelling required , If you have open filter under bonnet then change to a ducted system to cold air . inlet can change from say 20-30c to 60+c in less than a second when you shut the throttle + over-run with no ducted system
I am betting the problem will dissappear completely ,or at least get a lot better

I have used all of the above and the spec of the car+ budget would decide my suggestion on choice

8th May 2011, 10:28

I had my predator mapped at NMS.

8th May 2011, 17:43

pred can be mapped by anyone who knows the system... ppl saying the pred cant be mapped many places are just quoting the same thing other say over and over(as per), because a handfull of tuners or mappers are used by alot of ppl on all forums.. and they may have their preffered ecu/software, the megatune software is a very widely known, anyone who knows or has access to(supplied with ecu from andy) should be able to map it, fair do's if theyre used to it they may not provide the best map, but lots do know it, megasquirt has been going years

and the person who said they like to take their ecu onto a diff car.... if you prepared to get a new loom made or get your new car's modified you should be able to use the pred on alot of other cars

9th May 2011, 10:40

Decision made.

Now to sort the rest of the bits i need lol.

9th May 2011, 10:48

what you go for?

9th May 2011, 22:34

Quote:

Originally Posted by AlexB

Emerald is decent again custom looms but ive seen a few have issues like ryans (notsure what that ended up being wrong) but for ages he thought ecu

for the record my emerald issue was nothing to do with a fault with the unit. The unit got wet, it wasnt totally screwed and has run the engine since being rewired. The old loom was a vtr loom hardwired running the engine which ultimately was a bit shot to bits when I got the car and was on the to do list by me and the previous owner.

Ive not seen other people with issues myself.

9th May 2011, 22:35

Quote:

Originally Posted by J222JRA

Decision made.

Now to sort the rest of the bits i need lol.

look around though for deals dont just buy whatever ecu is flogged on here

9th May 2011, 22:38

I've got a friend who runs one of the M3D emerald Ecus, mapped by Dave Walker I think and the car runs very well - no problems so far at all.

9th May 2011, 22:39

Quote:

Originally Posted by blackie_2k5

a handfull of tuners or mappers are used by alot of ppl on all forums.. and they may have their preffered ecu/software.

Im not a fan of tuners like this, ive been told by a company to sell my ecu when I asked them to look into what was up with my car and start a fresh (well they could then sell me an ecu/loom oh and of course another £400 on a new map)...

They didnt seem to want to look into dealing with my issues unless they were going to flog a load of bits to me in the process

9th May 2011, 22:40

Quote:

Originally Posted by Ryan

for the record my emerald issue was nothing to do with a fault with the unit. The unit got wet, it wasnt totally screwed and has run the engine since being rewired. The old loom was a vtr loom hardwired running the engine which ultimately was a bit shot to bits when I got the car and was on the to do list by me and the previous owner.

Ive not seen other people with issues myself.

Thats 2 i know of that got wet
As said i wasnt sure but you thought ecu i wasnt sure what it ended up being

at one point you had a predator on there didnt you?

Anyway doesnt matter you cleared the issue up

9th May 2011, 22:44

Quote:

Originally Posted by AlexB

Thats 2 i know of that got wet
As said i wasnt sure but you thought ecu i wasnt sure what it ended up being

at one point you had a predator on there didnt you?

Anyway doesnt matter you cleared the issue up

An ecu in the engine bay will get wet its why alot of people are told to inistall inside the car. It wasnt removed from the car when it should have been and it happened. Dave tested the ECU and despite this he found no fault with the unit.

Andy brought the predator up to test the car yes. Plugged the box in and the car pretty much started first time when we tested it. Cant say thats not plug in and play really.

Currently im hoping someone whos been working on my car will be able to produce adaptor looms so you dont have to cut up a standard loom. Much like how the old KMS unit could be run.

9th May 2011, 22:49

Quote:

Originally Posted by J222JRA

So....the predator can be mapped on a rolling road by other companies then??

Sorry for being the noob but i only thought it could be road mapped by Andy??

All comes down to when the predator will be ready i guess........Andy, you have PM.

Mike @ Mikeanics (Congleton) mapped mine James.

Personally wouldnt recommend a Predator as the previous posts had suggest. But a big one for one was the note the exhaust gave, all raspy but then no pops or bangs. At the time that what I was into and ruined it for me, aswell as always stalling approaching roundabout regardless of giving it a blip made it damn right dangerous.

Camming my car was the worst thing I did looking back. Cost me a shed load (nearly £2K) to get the power I was after and even then it was no faster on the real roads than a standard GTi..

9th May 2011, 22:53

Its why mines under.my dash ryan

The other lad i know had one on a mini and that was in the bay

10th May 2011, 07:04

Quote:

Originally Posted by dannyhall

Mike @ Mikeanics (Congleton) mapped mine James.

Personally wouldnt recommend a Predator as the previous posts had suggest. But a big one for one was the note the exhaust gave, all raspy but then no pops or bangs. At the time that what I was into and ruined it for me, aswell as always stalling approaching roundabout regardless of giving it a blip made it damn right dangerous.

Camming my car was the worst thing I did looking back. Cost me a shed load (nearly £2K) to get the power I was after and even then it was no faster on the real roads than a standard GTi..

You can 'tune' in pops and bangs by playing with the over-run fuel cut.

I agree on the stalling thing, it's pretty dangerous tbh. I've never had it on my old car as all my maps used the TPS as the main sensor for load so I presume this is why I could coast at anyspeed and it'd be fine.

Presume it only affects it when you go from alpha-N to a Speed Density map

So basically if anyone runs TBs then they won't have this problem.

Don't OMEX, DTA, Emerald etc have VSS? Or is it only something which affects the Predator as this can control the standard idle valve?

10th May 2011, 08:24

Quote:

Originally Posted by dannyhall

Mike @ Mikeanics (Congleton) mapped mine James.

Personally wouldnt recommend a Predator as the previous posts had suggest. But a big one for one was the note the exhaust gave, all raspy but then no pops or bangs. At the time that what I was into and ruined it for me, aswell as always stalling approaching roundabout regardless of giving it a blip made it damn right dangerous.

Camming my car was the worst thing I did looking back. Cost me a shed load (nearly £2K) to get the power I was after and even then it was no faster on the real roads than a standard GTi..

Thaks for the input Danny

Must say though that as with all products the predator has seen big improvements over the last few years. Spoken to a few guys on here and other forums though, as well as Andy himself and they all give the same comments........how it runs and the stalling issue is all down to how well the ecu is mapped.

Im going to give it ago......i may regret it and then again i may not, i will posts me genuine comments when its all up and running (a long way to go)

10th May 2011, 11:00

Your on bodies so it will better than if it was on standard inlet.

I ran the predator on both and must be on of the longest customers now, as I not long got mine after Danny really and it has got alot better from the first time I had it.

The up dates all seem to help it.

And it was soo much better for idling and everything after the bodies where fitted.

Only problem I have it cold map, as that the hardest thing to get right as you only have a short window to check it, but not a massive problem as it not an every day car.

And just keep the throttle open abit on cold starts.

10th May 2011, 11:23

Bollocks....another question,

Having the car mapped on the road isnt an option as the cars currently off the road and will remain so until next year.

Who can map predator on rollers?? I mean who can do a fucking good job??

Thanks

10th May 2011, 11:53

Quote:

Originally Posted by J222JRA

Bollocks....another question,

Having the car mapped on the road isnt an option as the cars currently off the road and will remain so until next year.

Who can map predator on rollers?? I mean who can do a fucking good job??

Thanks

I would of thought Andy would be the best to map it, since he knows it inside out, and been mapping it longer then anyone else.

10th May 2011, 12:20

Thumbs up for pred mapped by andy.

10th May 2011, 13:04

Quote:

Originally Posted by kristel10589

I would of thought Andy would be the best to map it, since he knows it inside out, and been mapping it longer then anyone else.

Andy doesnt have a rolling road though does he??? From what i understand he maps the car whilst your driving along.......this cant be done as the cars got no test, tax or insurance etc etc.

10th May 2011, 13:09

andy has a selection of base maps to get you legal, then you can live map and fine tune on the rollers if you feel it necessary. saves trailering to the rollers and fannying around initially!

10th May 2011, 13:22

Quote:

Originally Posted by J222JRA

Andy doesnt have a rolling road though does he??? From what i understand he maps the car whilst your driving along.......this cant be done as the cars got no test, tax or insurance etc etc.

If you could get it to some local rollers Andy did used to travel to you for cost of petrol iirc, Could always ask him.

10th May 2011, 13:26

Quote:

Originally Posted by J222JRA

Andy doesnt have a rolling road though does he??? From what i understand he maps the car whilst your driving along.......this cant be done as the cars got no test, tax or insurance etc etc.

Depending on how the inbuilt wideband functions on the 3-plug pred, you might be able to get an automatic safe, legal, map to get you going mate. That'll target lamdba = 1 comfortably, then it's down to setting the ignition timings which ideally wants doing on a roller and then you can fine tune the fueling too, although I suspect Andy has done that many saxos now he could probably come very close just through road mapping.

10th May 2011, 13:28

similarly, im just waiting for my pred to be finished as we speak.... its going to have a safe n/a map on it so i can use it while im building the turbo kit up and when thats done were gonna meet up for some mapping sessions.and sort the boost from there.
also when i get bored of the motor il just take the ecu loom and sensors and itl practically run any non vvt engine. with some work anyway! compared to the rest of the work involved thats the easy bit........

10th May 2011, 13:35

i am running the pred with cams charger and single tb, since mapping my car hsant stalled once and ive tried coasting since it was mentioned on here and its fine aswell.

my last map over a year ago the car was awfull with just the cam.
but it has moved on and improved so much now im happy with it and trust it.
im sure andy can organise a rolling road if needs must, just speak to him m8

10th May 2011, 17:45

as above really, id get it tested before you start the work on it tbh, be alot easier, then just tax it when your ready for mapping, will be cheaper as well, if not as mnetioned you could hire a rolling road and get andy to travel or find a local mapper whos knows megatune, there will be someone

10th May 2011, 19:49

On the subject of mappers/tuners preferring certain systems... Yes some will make that choice on profit alone and some will make that choice based on having hugely more experience, knowledge, base maps for a given system; which will possibly benefit you anyway.

Speaking personally and you can take or leave this as you like... I don't sell or supply ECUs because I don't want people to think I favour a system for financial reasons, not very business minded, but i'm not. I map DTA, OMEX, GEMS, MBE, Emerald, EFI and Megasquirt (inc derivatives) on engine dyno, rollers and road/test tracks on an almost daily basis, from road cars to some of the best N/A race and rally engines in the country and daft as it may sound, now also act as a consultant and trouble shooter for the engine builders who originally taught me how to map. All the systems have their benefits and quirks and above all the best system is the one you have the best command of and feel the most confident using. I favour DTA because it has all the features my race and road engines need to perform consistently and I can map it to a high degree of accuracy, even on an unknown engine, very quickly. Some other systems are less fussy and will smooth over a less than perfect map better, but I value precision over that. My biggest customer uses OMEX and DTA on his race/rally engines, which we regularly dyno map on the same engines. I takes literally a third of the fuel to get the engine run in and acceptably mapped on DTA. Similarly if revisions have to be made on test in the car, I simply can't manipulate and save the map values on any other system with the speed and confidence I do with DTA.

Other systems well set up should of course achieve the same ends, but how hard that is to achieve is a big issue. Typically, a regular TB'd 16v std or 708s Saxo/106 takes me 2-3 hours in the rollers to get a really good map written and tested. A well prepared car, like Dan Jacob's Rallye last Saturday, took only 1.5 hours. Similarly Nick Charles' 106 race car took me approx 2 hours with an entirely new injector configuration and head/cams; it won it's class in the Combe Saloons two days later and is leading that championship overall after 3 races.

10th May 2011, 21:17

Quote:

Originally Posted by Sandy309

On the subject of mappers/tuners preferring certain systems... Yes some will make that choice on profit alone and some will make that choice based on having hugely more experience, knowledge, base maps for a given system; which will possibly benefit you anyway.

Speaking personally and you can take or leave this as you like... I don't sell or supply ECUs because I don't want people to think I favour a system for financial reasons, not very business minded, but i'm not. I map DTA, OMEX, GEMS, MBE, Emerald, EFI and Megasquirt (inc derivatives) on engine dyno, rollers and road/test tracks on an almost daily basis, from road cars to some of the best N/A race and rally engines in the country and daft as it may sound, now also act as a consultant and trouble shooter for the engine builders who originally taught me how to map. All the systems have their benefits and quirks and above all the best system is the one you have the best command of and feel the most confident using. I favour DTA because it has all the features my race and road engines need to perform consistently and I can map it to a high degree of accuracy, even on an unknown engine, very quickly. Some other systems are less fussy and will smooth over a less than perfect map better, but I value precision over that. My biggest customer uses OMEX and DTA on his race/rally engines, which we regularly dyno map on the same engines. I takes literally a third of the fuel to get the engine run in and acceptably mapped on DTA. Similarly if revisions have to be made on test in the car, I simply can't manipulate and save the map values on any other system with the speed and confidence I do with DTA.

Other systems well set up should of course achieve the same ends, but how hard that is to achieve is a big issue. Typically, a regular TB'd 16v std or 708s Saxo/106 takes me 2-3 hours in the rollers to get a really good map written and tested. A well prepared car, like Dan Jacob's Rallye last Saturday, took only 1.5 hours. Similarly Nick Charles' 106 race car took me approx 2 hours with an entirely new injector configuration and head/cams; it won it's class in the Combe Saloons two days later and is leading that championship overall after 3 races.

You have Pager message......help needed (again) Sandy.

12th May 2011, 10:03

Quote:

Originally Posted by raunchz

You can 'tune' in pops and bangs by playing with the over-run fuel cut.

I agree on the stalling thing, it's pretty dangerous tbh. I've never had it on my old car as all my maps used the TPS as the main sensor for load so I presume this is why I could coast at anyspeed and it'd be fine.

Presume it only affects it when you go from alpha-N to a Speed Density map

So basically if anyone runs TBs then they won't have this problem.

Don't OMEX, DTA, Emerald etc have VSS? Or is it only something which affects the Predator as this can control the standard idle valve?

Ah, we couldnt 'tune' them in at the time, but it was 2 and half years ago now.. :/

I remember stalling coming off the motorway with a HGV hurtling at me, scared the s**t outta me!

Quote:

Originally Posted by J222JRA

Thaks for the input Danny

Must say though that as with all products the predator has seen big improvements over the last few years. Spoken to a few guys on here and other forums though, as well as Andy himself and they all give the same comments........how it runs and the stalling issue is all down to how well the ecu is mapped.

Im going to give it ago......i may regret it and then again i may not, i will posts me genuine comments when its all up and running (a long way to go)

Yeah no worries. Just thought i'd share my experience, as I was never ever happy with it. Dont get me wrong TB's would sound insane but for an extra 50bhp (ish) its alot of money...

Have fun doing it though!