got the car tuned, can't hold the boost
Thread Starter
Registered User
Joined: Apr 2003
Posts: 64
From: fremont ca
mile thank you for the help 
you brought the good point that the fan on the dyno can't really compare to air being suck while on driving. that's why the boost is higher on street than when it's on dyno. as for the header, I felt the car has better mid to top end power after the headers were installed. and my friend has the same haerders. he has no problem holding the boost and so do I.... right now the only thing is confusing me is that by looking at the dyno sheet, the car can't hold boost, but it actually holds boost whenever i drive it. really dunno it's the car or dyno...anyways, my car runs smoothly and strong..i shold be happy with it
you brought the good point that the fan on the dyno can't really compare to air being suck while on driving. that's why the boost is higher on street than when it's on dyno. as for the header, I felt the car has better mid to top end power after the headers were installed. and my friend has the same haerders. he has no problem holding the boost and so do I.... right now the only thing is confusing me is that by looking at the dyno sheet, the car can't hold boost, but it actually holds boost whenever i drive it. really dunno it's the car or dyno...anyways, my car runs smoothly and strong..i shold be happy with it
Last edited by darkspeed; Nov 27, 2003 at 08:59 PM.
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iTrader: (39)
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Posts: 6,453
From: San Jose
Car Info: Evo X, 04 STI, 335i, Fit
Something else worth noting is that the design of the headers your using "should" give you more top end than anything else as if I'm not mistaken they are 4:1.
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
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Dyno sheet
The mods i had for the first run @232 hp:
stromung 2.5 inch down pipe(still retains one cat)
top speed cat-back
injen intake
aps bov
unichip
The only addition to the run @255hp was an aps tmic
" NO NITROUS"
I hope this helps
stromung 2.5 inch down pipe(still retains one cat)
top speed cat-back
injen intake
aps bov
unichip
The only addition to the run @255hp was an aps tmic
" NO NITROUS"
I hope this helps
Last edited by doogie; Nov 28, 2003 at 03:31 PM.
Former Sponsor
iTrader: (39)
Joined: Nov 2002
Posts: 6,453
From: San Jose
Car Info: Evo X, 04 STI, 335i, Fit
doogie - That is pretty strong for a WRX congrats.
What do stock WRX's baseline on that dyno? any idea? I am interested in the correction factor it's running.
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
What do stock WRX's baseline on that dyno? any idea? I am interested in the correction factor it's running.
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
Thread Starter
Registered User
Joined: Apr 2003
Posts: 64
From: fremont ca
doogie: if I am not mistaken, you gain 78whp without upgrading the turbo, inectors and pump? is that possible? I mean I've never seen any wrx got 78 whp with stock turbo...maybe you got a sti not wrx anyways, congrants on such a good number
thanks
anyways, congrants on such a good numberthanks
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