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is 400whp obtainable on 15 psi?

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Old 04-30-2008, 09:54 AM
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Default is 400whp obtainable on 15 psi?

setup is as follows:

ls/vtec
81mm wiseco 8:1
eagle rods
stock head w/itr valvespring
t4/60-1 84a/r hotside 70a/r coldside p-trim
tubular mani
38mm wastegate
3'' intercooler piping
tuned on crome pro

im trying to figure out iof thats good for 400 whp on 15 psi. i see alot of similar setups with smaller turbos make close to that goal on lower boost. the motor will be reving to 9k. thank you for your input.
Old 04-30-2008, 11:08 AM
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35 views and no responses? someone has to know something
Old 04-30-2008, 11:30 AM
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Default Re: is 400whp obtainable on 15 psi? (turbo-crx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbo-crx &raquo;</TD></TR><TR><TD CLASS="quote">setup is as follows:

ls/vtec
81mm wiseco 8:1
eagle rods
stock head w/itr valvespring
t4/60-1 84a/r hotside 70a/r coldside p-trim
tubular mani
38mm wastegate
3'' intercooler piping
tuned on crome pro

im trying to figure out iof thats good for 400 whp on 15 psi. i see alot of similar setups with smaller turbos make close to that goal on lower boost. the motor will be reving to 9k. thank you for your input. </TD></TR></TABLE>

Why does it matter if its at 15psi?

If you make that power at 13psi, or 22psi, its still 400whp regardless...

Psi is just a number, should be almost irrelevant in your goals.

Does it change anything if someone says yes or no?
Old 04-30-2008, 11:50 AM
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well because thats what wastegate spring i have. i wana see if i can do it on just the wastegate spring because i dont have a boost controller.
Old 04-30-2008, 11:50 AM
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Default Re: is 400whp obtainable on 15 psi? (97CWITR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 97CWITR &raquo;</TD></TR><TR><TD CLASS="quote">

Why does it matter if its at 15psi?

If you make that power at 13psi, or 22psi, its still 400whp regardless...

Psi is just a number, should be almost irrelevant in your goals.

Does it change anything if someone says yes or no? </TD></TR></TABLE>

Agreed, why are you so concerned with 15psi?


The answer to your question though is yes, but most likely not with that setup.

I made 380hp @ 14psi with a LOG manifold, and 2.5'' DP. My plan this summer is to switch to a EL manifold (ramhorn) and 3'' DP. I know for a fact this will put me over 400 @ 14psi. The reason I got this number is because I have higher compression (9.8:1) and 01 ITR cams, which really helped. Regardless I wouldn't be too concerned with your PSI level. Just take it to a good tuner and let him work his magic, whatever PSI level he is comfortable with will be the PSI you need to run your motor @.
Old 04-30-2008, 11:55 AM
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Default Re: is 400whp obtainable on 15 psi? (turbo-crx)

Go to the dyno and let us know how it does. We don't allow e-dyno or guess the power threads.

PSI does not equal power. There are a lot of things that come into play.
Old 04-30-2008, 12:19 PM
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Default Re: (turbo-crx)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbo-crx &raquo;</TD></TR><TR><TD CLASS="quote">well because thats what wastegate spring i have. i wana see if i can do it on just the wastegate spring because i dont have a boost controller.</TD></TR></TABLE>

We wont know what you'll make at 15psi, but boost controllers are cheap...pick one up if you're really concerned with making 400whp.
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