Induction kit = fuel need remaping?

19th November 2006, 11:51

I hear alot of talk about if you get an induction kit they actually ruin your engine and bog it down unless you get the fuel remapped, is this true?

19th November 2006, 11:55

no.......

19th November 2006, 12:15

the thing that made me believe this is because every car i have had an airfilter on (cone) every time, this is 3 different cars im talking about, the engines on them have just gone crap, but i couldnt tell if this is the airfilter or not because i never used to service my cars until i got me saxo.

19th November 2006, 12:16

what you mean by crap

an open iduction kit will lose performance as sucks in hot air

19th November 2006, 12:21

would an open induction kit put near the bottom work better cause its near the cold air?

19th November 2006, 12:38

it would still suffer from heatsoak, especially in traffic. open filters do nothing for performance in terms of gains.

19th November 2006, 13:20

Yea im looking for an enclosed induction kit this time.

19th November 2006, 13:24

Quote:

Originally Posted by Sean

open filters do nothing for performance in terms of gains.

Yeh hes kinda right there. Ive got a Pipercross open kit and tbh its never really made a huge difference to the power, it just sounds the part. Only when I fitted my exhaust and had it chipped did I get any more response from the throttle.

19th November 2006, 13:55

Quote:

Originally Posted by Sean

it would still suffer from heatsoak, especially in traffic. open filters do nothing for performance in terms of gains.

i believe you! but..... an you actually prove that??

19th November 2006, 15:20

I could prove it if I had my mates clio rr results!... lol... the true art to getting an induction kit is fitting it and not losing power, not fitting it and gaining as if you managed to get 1bhp extra from one then that would be an acheivement.... standard airboxes were designed for a reason... several years and multiple £'s goes into researching these things there not likely to get it far wrong as they know more about it than some guy selling chrome pipes (which get very hot!),big filters on the end and a brand logo

19th November 2006, 16:16

whats that i see on your avatar? funny looking standard airbox!

19th November 2006, 16:21

standard cams were made for a reason too

but do we keep them or change them

:

19th November 2006, 16:39

Quote:

Originally Posted by S34MER

i believe you! but..... an you actually prove that??

think about it its not rocket science

plus theres more chance of getting water in it lower down

19th November 2006, 16:45

Quote:

Originally Posted by hesslevtr

think about it its not rocket science

plus theres more chance of getting water in it lower down

think about what???
i never said anyone was wrong! or did you read something i didn't?

I said i agreed with him, but i have never seen any proof that an open air filter will loose performance!

19th November 2006, 16:55

you can get like a balance remap so i believe, that just balances all stuff out like your exhaust and filter etc, so my local rolling road says!!

19th November 2006, 16:57

the colder the air the better performance and as the open kit will suck in hot air which is bad

19th November 2006, 16:57

Scrap induction kits altogether and get a TBs conversion done.

19th November 2006, 17:37

Quote:

Originally Posted by spencer_cammedvts

whats that i see on your avatar? funny looking standard airbox!

I never said I didn't like induction kits!... yes I have one and yes I have lost a small amount of performance through it!... I just like the noise!.... thats the most chavvy part of my car! lol...

If you want improved performance put a replacement panel filter (green or K+N) in your standard airbox... this will increase performance.

19th November 2006, 18:37

also its true what was aid about cams why dont the come with high lift cams? if everything on the car was developed for optimum performance. why arnt 4 branch manifolds on them as standard and 2 1/2" bore stainless steel pipes?
ill tell you why in 3 words.

economy, production costs, reliability!

19th November 2006, 18:54

Yes but the most cost effective way to run a car is to get the most amount of denser (cold air) into the cylinders so that less petrol is needed to create cumbustion.... therefore economical

19th November 2006, 19:00

yes i agree with that but ideally you want an easy route also! the less obsticlals the air has to contend with, the better the flow!

similar to having a head port & polished. by no means does it allow more air into the cylendars but it allows the air to flow more smoothly and DOES give an increase!

19th November 2006, 19:07

that was 4 words lol

19th November 2006, 19:30

cheeky bastard. lol

19th November 2006, 22:28

I hear the reason they dont do all of this top of the range stuff to cars cause they have to realise, they have a more wider target audience when selling cars, they want something that will suit the majority of people not just people who want fast cars, if you want a fast car that comes out of the factory like that get a one, and pay the price of it aswel, they need to think of worldwide climates, and they have to realise there will be old, young, male and female who will be buying these cars with different needs, if they just built it with a straight through loud exhaust on, i dont see them maximising there profits..

20th November 2006, 09:09

Like mentioned before - Cold air = greater performance.

Yes a panel filter is protected from heat and feed by cold air but the boxes/systems are design for all round drivin, low noise and good fuel return.

Yes a Cone will lose performance if not feed with enough cold air but has a larger surface area so more air can entre and less restrictive that standard setup.

Yes a closed filter is the best again if the cold air feed is postioned in the right place.

and Yes Scoops are good but IMO not enough air can enter through the holes in the slam panel.

IMO if out and out performance is your quest go for a BMC and make sure the coldair feed is correctly postioned to get the most out of the filter.

20th November 2006, 09:13

IMO if out and out performance is your quest go for a BMC and make sure the coldair feed is correctly postioned to get the most out of the filter.

i took a simota and a BMC to chipwizards when i got my car mapped. i asked wayne to try them both and tell me which 1 was better. he didnt give me any figures but said the simota performed better.

20th November 2006, 10:22

iv heard about the simotas performing better too mate. i got a raceland enclosed and am sticking a green filter in it.

20th November 2006, 10:48

thats what i had in my simota. also put a samco elbow on it as it has a bigger radius.

20th November 2006, 11:22

i was thinking of doing that also lol. but its a bit expensive for basically 0 gains. id just be gettin it for its looks! what did you do to overcome the slam panel problem williams?

20th November 2006, 11:31

what slam panel problem?
wayne (chipwizards) reckons that with the samco on you should see a few hp higher up the revs as the air can flow better, thats why i got rid of my powerflow aswell as he reckoned it was restricting it.

20th November 2006, 11:33

really! worth a thought then! just a standard 90degree elbow? what kind of internal diameter did you get?

20th November 2006, 11:50

i took it off a BMC that i had.

its just the 1 for the vts with the bit for the breather to attatch to.

20th November 2006, 15:46

Quote:

Originally Posted by S34MER

i believe you! but..... an you actually prove that??

doesn't take a rocket scientist to work it out. hot air=more dense=less oxygen. and we all know (well some of us do) how much a cumbustion engine likes oxygen.

20th November 2006, 17:16

and what was meant by the slam panel problem is that there is actually no gap in the slam panel for the filter to suck in cold air through!

20th November 2006, 17:22

just left it how it is.

21st November 2006, 08:03

i rite. iv drilled some big holes in the slam panel and its gettin penty of cold air in now!

i got a mk1 shell also so im gonna cut out a rectangle just above the grill and turn it into a cold air feed as so to say. then then the air really will be flowing straight into the induction opening.

21st November 2006, 20:18

I've never worried about performance in traffic loss due to heatsoak. Its kinda pointless to have an extra few bhp then.

Open filters are okay with a cold air feed and when moving, work well. but a direct feed from the front of the car in say a forced induction kit is superior. Less distance for the air to travel, doesn't mix with any warmer air and I had a third point that I've forgotten.