400bhp what to do?
#1
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400bhp what to do?
I have a 53 plate sti ppp, was just curious to see how much work and money is involved to get to round 400 bhp or late 300's? Is it just a case of bigger turbo, fmic, bigger injectors and a remapp? Any advice welcome thanks
#3
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Fuelpump,
Fuel pressure regulator would be worth it as well,
3" exhaust,
Possible front mount,
Injectors,
Turbo,
Upgrade plugs,
Remap.
Might not last long though. Would personally fully forge the bottom end if I was going for 400bhp upwards. You know you'll always want more.
Fuel pressure regulator would be worth it as well,
3" exhaust,
Possible front mount,
Injectors,
Turbo,
Upgrade plugs,
Remap.
Might not last long though. Would personally fully forge the bottom end if I was going for 400bhp upwards. You know you'll always want more.
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Thanks lads don't fancy a forge rebuild tho sound a lot of money and time off the road! Doesn't mine come with a walbo fuel pump? Iv heard it does What am I looking to do for around 360 to 380 bhp then?
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The engine should be ok up to around 450bhp, as people have run them up to that with no issues. I would change the fuel pump as precaution considering the cost vs risk factor. Intercooler is fine up to 400bhp, you could squeeze 400bhp from the injectors if u fitted the fpr and upped the fuel pressure a bit.
Banny
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The engine should be ok up to around 450bhp, as people have run them up to that with no issues. I would change the fuel pump as precaution considering the cost vs risk factor. Intercooler is fine up to 400bhp, you could squeeze 400bhp from the injectors if u fitted the fpr and upped the fuel pressure a bit.
Banny
Banny
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#8
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fpr: Fuel Pressure Regulator
Turbo? Take advice from RESPECTED tuners on here, or ring round.
Expect to pay £850-£1500 for a turbo, £450 for injectors, £150 for a fuel pressure reg.
For the money I'd also invest in a charge air temperature gauge, esp if using a TMIC
Better to take your foot off when you see high temperatures than after it goes bang.........like what I did
Turbo? Take advice from RESPECTED tuners on here, or ring round.
Expect to pay £850-£1500 for a turbo, £450 for injectors, £150 for a fuel pressure reg.
For the money I'd also invest in a charge air temperature gauge, esp if using a TMIC
Better to take your foot off when you see high temperatures than after it goes bang.........like what I did
#10
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I am currently running 451bhp / 405ftlb on a 2004 Sti on standard internals with no issues in the last 2 1/2 years.
Give Martyn a ring at Alan Jeffery - Engine Tuner high performance engine tuning and engine building as they have got a few customers running about at this level with no issues.
Give Martyn a ring at Alan Jeffery - Engine Tuner high performance engine tuning and engine building as they have got a few customers running about at this level with no issues.
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thanks for all the advice people
now to start saving a few pennies and look into how far i want to go with it really? i know alot of you say once you start modding you always want more power mine is an everyday drive so will think long and hard about this big step up
thanks again everyone for your knowledge and info Darren
now to start saving a few pennies and look into how far i want to go with it really? i know alot of you say once you start modding you always want more power mine is an everyday drive so will think long and hard about this big step up
thanks again everyone for your knowledge and info Darren
#19
is it possible to make 360-370 on 98 octane without running octane booster with some of the afformentioned mods?
I'd like more in my 05 sti uk type.
Has anyone gone to a twinscroll turbo and exhaust setup when doing this?
I'd love to be able to get it to come on boost sooner, and produce a bit more torque lower in the rev range, without going the 2.5 route.
I'd like more in my 05 sti uk type.
Has anyone gone to a twinscroll turbo and exhaust setup when doing this?
I'd love to be able to get it to come on boost sooner, and produce a bit more torque lower in the rev range, without going the 2.5 route.
#25
#27
Well either way to make ~370 it had to be producing decent torque, unless it was maintaining it at high rpm.
Hmm, just to save the pennies now!
With just a good panel filter do you think it'd be down much on that?
I think my turbo needs attention.
I fitted a buddy club de-cat and had car mapped before even starting it.
And as soon as the car started to come on boost in 3rd-6th gear at 3.5-4k rpm the there is a screeching sound. The noise is gone then by 4200rpm.
The turbo still spools as quick and at same rpm, and provides as much power as before. It behaves exactly the same, only it makes the noise.
If you bring revs up to 4200 slowly then floor it, no noise at all.
Obviously being concerned that this is wrong, we put ori exhaust an map back on, and the noise is still there, only not near as bad.
Ever heard of this?
Do you know what my options are in terms of, getting turbo rebuilt, buying a new one while doing an exchange for old one?
To do this and be without a car for as short a time as possible. Its my everyday car.
Cheers
Last edited by ScoobyNoobie; 03 December 2009 at 02:22 PM.