As above how far can i take a mechanically std engine and gearbox on the above car? I'm interested in taking it as far as possible without it going pop, am i right in thinking that about 350-380 is the max? and what would be required in doing so? it currently has a HKS hi power exhaust(3inch??? ) cat back and a Zero sports induction pipe. would a panel filter be sufficient or an induction kit? A decat and fuel pump are next on the list of mods followed by a remap. I'm assuming after that it will need injectors and a larger turbo, and possibly a FMIC. is that sort of power attainable without the FMIC, with say a hyperflow TMIC?

Here's a couple of scans of the power run it had recently





Cheers

 

350 bhp approx would be safe for the engine, anymore is a gamble on a std engine.
I had a Hyperflow topmount before & they are the dogs danglies but very expensive & so a good FMIC may become a better option due to price.

 

are these power figures right. i thought a sti 5 was 280 out of the box?

 

That is a hub dyno bigsinky

Banny

 

ahh right (sure what do i know) no resistance losses then is that right? so what would equate to in real money

 

I think it equates to 280-290 give or take, from what the oporater said.

It terms of getting 350 will I be able to get that with the std TMIC? What else would I need?

 

Standard tmic will not be up to the job. Parts needed will be:

fmic: £300+
injectors: £300+
turbo: £350
remap (ecutek) £500 + vat
fuel pump: £80

Banny

 

Cheers Banny, was hoping I could avoid the FMIC route.

 

Fmic is the easy option but in reality you could fit the newage sti tmic and run with that, but it requires a bit of messing about to fit it

Banny

 

But will the gearbox take that sorta power??

 

If your gentle it will, but you dont need 350bhp with a short geared car, the gearing makes it quicker than say a 350bhp uk classic with the same mods.
You will have to go fmic, that means losing the standard air box, that means if you dont want issues you have to go for a mafless ecu, that means about 1200 quid for a simtek.

Tony

 

TBH I don't think it's really worth the expense. My type r is running 335bhp with similar torque. All I did was Nur spec, decat, ported headers & up pipe, fuel pump, green panel filter & JGM remap.

Is it really worth spending all that cash on a simtek, FMIC, turbo etc for not very substantial gains? Some may say yes but I personally doubt it.

 

I reckon 400ft lbs would be fine with some sympathy & redline gear oil

 

^^^^^ your a funny guy.

 

There are loads of ways mate. You dont have to buy a simtek. Why not just go for a Q45 maf if you are worried that the standard maf might fail.

 

400lbft most go just over 300lbft, even being sympathetic a good 95% will strip a gear easily

Tony

 

You should put it to the test Tony. There are quite a few using the V5/6 box that has been holding over 400ft lbs for a while now. Can be abit risky if you get too carryed away

 

That's what I'm thinking, 350 with the gearing, not much will keep up, my previous type r was running a link ecu with supporting mods at 300 on a conservative map(1.45 bar peak) and it gave a 996 porker a hard time so my thinking that 350 will be more than enough.

 

There are also considerably more that have not even gotten past 320lbs, some of those were unabused examples too

I always work on the principle that if it were my car would I want to break it? The answer is no, so I always give the advice that will keep the car reliable, not unreliable and waiting for a nice big bill so 400lbs of torque on a late classic STI gearbox is pretty suicidal, same with anything over 350bhp on a classic engine, you lose reliability and that means big money, some people just cannot afford to take those chances, so I try to make sure they dont have to

Tony