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Old 08-19-2007, 12:47 AM   #1
carterholt
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Member#: 152706
Join Date: Jun 2007
Chapter/Region: RMIC
Location: Denver
Vehicle:
2007 sti
black

Default real quick

does anyone know what the 2.5l sti short block maxes out at, as far as how much psi you can run.
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Old 08-19-2007, 02:01 AM   #2
TeamTHP
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Member#: 151994
Join Date: Jun 2007
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
05 STI "Stage 2"
13.10@103.6mph, 1.78 60's

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Do some reading around. PSI is relative to the turbo used. From what I have read 500whp is about as much as you want to have without it being too much of a risk. Although of course it is going to be a whole lot harder on the engine.

There is always exeptions.
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Old 08-19-2007, 03:26 AM   #3
carterholt
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2007 sti
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one more thing.. what do you think about magnus intake manifolds?? would a perrin fuel rail kit, fit right up?
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Old 08-19-2007, 11:58 AM   #4
modaddict
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Chapter/Region: NWIC
Location: Pasco, WA
Vehicle:
sold to a good bud
awaiting next car

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about 45 psi.

magnus has a bad wrap around here for broken welds and bad customer service, but I don't have any experience with them. their manifolds look purdy.
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Old 08-19-2007, 12:24 PM   #5
carterholt
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Location: Denver
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2007 sti
black

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any other suggestions? as far as larger intake manifolds?
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Old 08-19-2007, 02:18 PM   #6
Kosmic
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Member#: 99140
Join Date: Oct 2005
Chapter/Region: E. Canada
Location: Montreal, Canada
Vehicle:
GD Racing chassis
Slowly in construction

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I just don't want to say "search is your friend"....well too late!

http://forums.nasioc.com/forums/show....php?t=1227220
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Old 08-19-2007, 07:52 PM   #7
carterholt
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Chapter/Region: RMIC
Location: Denver
Vehicle:
2007 sti
black

Default

good intake manifolds? anyone?
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