Max recommended boost on a STI ver.7?
30 January 2009, 11:21 AM
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Max recommended boost on a STI ver.7?
I am considering a turbo upgrade on my 2002 STI. The block is stock and has OEM forged internals, not aftermarket. So, in a perfect world i.e. no knocking, high oil temps etc....
what's the max recommended boost before reliablilty goes out the window?
I vaguely remember 1,6Bar being the limit on OEM internals??
what's the max recommended boost before reliablilty goes out the window?
I vaguely remember 1,6Bar being the limit on OEM internals??
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30 January 2009, 01:58 PM
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It's a GT4088R.
No seriously, I am just kidding
I am considering the ST420.
I have read that it's happy with a little more boost than say 1.4 bar, hence the question. Just looking for a solid 400bhp or thereabouts
No seriously, I am just kidding
I am considering the ST420.
I have read that it's happy with a little more boost than say 1.4 bar, hence the question. Just looking for a solid 400bhp or thereabouts
30 January 2009, 02:05 PM
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Nope, it's is nowhere near capable of what I want. I had one for over a year and IMO it's was not an upgrade for my STI (VF30). I made 290BHP on Rototest (@hubs) and the main issue is that it flatlines at 5500rpm. Some 18G are great I've heard, others are not so great. I made a mistake back then, and I don't want to make another.
30 January 2009, 02:28 PM
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Ok but that was the turbo on your profile hence 
at just how good they seem at not producing great figures.
A decent 18G will see up to 380bhp on a well set up car and be faster spooling with your VVT heads at a comfortable 1.6 bar
at just how good they seem at not producing great figures.A decent 18G will see up to 380bhp on a well set up car and be faster spooling with your VVT heads at a comfortable 1.6 bar
30 January 2009, 04:35 PM
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Have been running a few at 1.7 bar midrange on 450hp capable bolt on turbos for a couple of years now.
31 January 2009, 08:12 AM
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It felt quite punchy
.
31 January 2009, 02:27 PM
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Erm.....
Should I mention that the JGM hasn't mapped it yet....
I hope he can sort it once the clutch goes in on Monday !
dunx
P.S. Will try and join Photo-KFC-bucket with some pics
Should I mention that the JGM hasn't mapped it yet....
I hope he can sort it once the clutch goes in on Monday !
dunx
P.S. Will try and join Photo-KFC-bucket with some pics
09 February 2009, 03:52 PM
#25
for the tuners out there is a FPR needed on an 02 sti jdm and also a avcr, and what are the benifits and drawbacks if any turbo is 18g with other bits ike exhaust and induction, sprks etc
thanks
thanks
09 February 2009, 05:30 PM
#26
10 February 2009, 08:01 AM
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