what turbo to use?

22nd January 2011, 13:13

what turbo is best to use for my vtr? im looking for a low boost setup with about 4-6 psi so ideally a baby sized turbo

And it ideally cant be one with water & oil lines as ive only ever seen saxo turbos with oil lines. The only turbo ive seen mentioned yet is the T2 so far anything else? thanks

22nd January 2011, 15:10

There is a lot of confusion when it comes to turbos. A T2 turbo is not actually a size of turbo but a general format of turbo. You can get many different size T 2 turbos. A good example can be shown with T3 turbos. There are relatively small ones available like that fitted to the Metro turbo. But then there are much larger ones as fitted to the Escort Cosworth with over double the power of the metro.

Something like a T2 off a Renault 5 GT turbo could be used however it is getting old. Most are died or very close to it these days. You can get the newer GT range of turbos for not much more then a good reconditioned R5GTT unit. The GT is a much better turbo then the T as well. Ideally you do want a water cooled turbo. Air cooled turbos tend to be a lot less efficient and do require adequate air flow.

Personally I would go with a new Gatter GT probably something like a GT2052 or GT2056. Or possibly even a small used MHI TD04 as there are relatively common on production petrol turbo cars so you could grab a nearly used one cheap. There are more off the shelf manifolds for the GT series though so it would be the simplest way to go.

22nd January 2011, 20:47

Turbo Conversion worth doing or not and how much work is involved????

23rd January 2011, 00:10

Quote:

Originally Posted by Ad25

Turbo Conversion worth doing or not and how much work is involved????

if you want good power from a car, and are prepared to pay for it, YES

alot of work involved

23rd January 2011, 00:12

huge amount of work to do it properly. a LOT more to think about than you first think.

id use a gt17 turbo off a saab, they seem to be making good results with quick spool.

23rd January 2011, 01:11

Quote:

Originally Posted by LSOfreak

what turbo is best to use for my vtr? im looking for a low boost setup with about 4-6 psi so ideally a baby sized turbo

And it ideally cant be one with water & oil lines as ive only ever seen saxo turbos with oil lines. The only turbo ive seen mentioned yet is the T2 so far anything else? thanks

what is it you actually want to do?
because you was only asking about camming your vtr the other day
asking which is the wildest cam you can use in it, and if you do really plan on running a turbo on your vtr, a ph3 may not be th cam choice to go for

23rd January 2011, 02:11

Quote:

Originally Posted by vtr_chris90

what is it you actually want to do?
because you was only asking about camming your vtr the other day
asking which is the wildest cam you can use in it, and if you do really plan on running a turbo on your vtr, a ph3 may not be th cam choice to go for

lol yeah this is quite random. but basically i want my vtr to be a little quicker and im considering my options. One of my friends have basically said he may be able to fit a turbo conversion at mates rates if i supply all the bits. i havent yet set a desicion on spending a reasonable for the ph3 or a fairly large amount for a small turbo. tbh id love a turbo but im starting to think its going to be more hassel than its worth thats why im swaying slightly to just the cams. if i did go to the turbo route then id keep the standard cam and internals

27th January 2011, 05:05

id say t2 ot t25, thinh saab did both

27th January 2011, 12:53

Ideally you need tolook into compressor maps to pick the best one, but generally speaking most T66's will be fine.

I mean T2.

Also, if you know what youre doing and pick parts sensibly, it can be done on the cheap and reliably. The most expensive part is mapping.

27th January 2011, 12:58

Quote:

Originally Posted by Gabbastard

but generally speaking most T66's will be fine.

They do work really well.

As a jet engine

27th January 2011, 14:06

I used a TD04, £50 off ebay, spools really early but runs out of puff high up

27th January 2011, 14:58

Quote:

Originally Posted by AXracing

They do work really well.

As a jet engine

lol,

would you not be better with two?

27th January 2011, 15:43

Quote:

Originally Posted by Jungle

I used a TD04, £50 off ebay, spools really early but runs out of puff high up

is that not the standard fit on imprezas?

27th January 2011, 15:56

Quote:

Originally Posted by Gabbastard

is that not the standard fit on imprezas?

yes it is mate

27th January 2011, 15:59

thought so, youre better off with something thatll spool earlyish and give a spread of power anyway.

Or you could get this.

27th January 2011, 16:00

now that is a man size turbo!

27th January 2011, 17:15

as axracing said, there is a LOT of confusion with turbochargers. (mainly people banging on about how a t2 is a tiny turbo)
something small with a high flow rate would be perfect. a gt17 would be ideal, will spool from 1,500 rpm and hold over a bar of boost. my vts made 230 bhp at 9.5psi on a gt17.

27th January 2011, 18:01

Quote:

Originally Posted by maddison_vts

as axracing said, there is a LOT of confusion with turbochargers. (mainly people banging on about how a t2 is a tiny turbo)
something small with a high flow rate would be perfect. a gt17 would be ideal, will spool from 1,500 rpm and hold over a bar of boost. my vts made 230 bhp at 9.5psi on a gt17.

main problem with ppl bangin on a bout dif turbo's and sizes is that there are lots of different specs of turbo with the same name, the t2 for example.....

you have cams in yours maddison? pretty good power that!

27th January 2011, 18:35

cheer for the advice. so does the turbo you use decide the amount of boost you run? or do you always have a manual boost controller? i only want like 6psi max

28th January 2011, 22:20

you cannot run a turbo without an oil feed + return ,so it gets involved

28th January 2011, 23:11

why dont ya just get a vts engine in there and cam that

29th January 2011, 12:35

Quote:

Originally Posted by lookinsaxo

why dont ya just get a vts engine in there and cam that

because a turbo is more fun?

29th January 2011, 12:46

vts engine = ~400-500
cam + mapping + fitting= 800
total = ~1300

which is roughly the same for all the parts for a turbo if i look around. Also no one will insure me on an engine conversion

29th January 2011, 13:05

Quote:

Originally Posted by LSOfreak

vts engine = ~400-500
cam + mapping + fitting= 800
total = ~1300

which is roughly the same for all the parts for a turbo if i look around. Also no one will insure me on an engine conversion

I have seen an insurance company not know what to make of a turbo conversion so simply put it down as a perforce exhaust and inlet.

30th January 2011, 13:13

lol yeah there a bit funny with it, they wouldnt insure me with a 16v conversion but would with a turbo lol?! surely the turbo is the faster option...

30th January 2011, 13:19

One of these will do:

30th January 2011, 13:52

Out of curiousity, what is the cheapest way to turbo a vtr? just billy basic, nout flash?

30th January 2011, 14:04

Basic basic would be get a nice small turbo in good condition form the scrap yard. You would want one off a petrol car with around 110-160 bhp. It must be one with a vacuum operated waste gate.

Then do a DIY weld up job on your manifold to fit your turbo flat and the correct way up. Weld up a down pipe. Mod the sump to take an oil drain. Make up an oil feed pipe from the block. Then plum in your boost pipes.

Then get your self a high pressure fuel reg and or a resistor for the temp sensor. Then you are ready to run really and I mean REALLY low boost.

30th January 2011, 14:09

Cheers bud, seems alot of hassle for very little. The problem ive got is i got my vtr after I sold my redtop corsa and its just too much of a step down in power for me.

Should i get another xe corsa or can you suggest a cost effective way of getting the same power to weight ratio as an xe but in the saxo?