How much boost would YOU run on 10.8:1 compression?

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Old Jun 4, 2003 | 07:25 PM
  #1  
94TealGSR's Avatar
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Default How much boost would YOU run on 10.8:1 compression?

I'm almost done assembling my turbo kit, and it's going on my B18C1 (w/ITR pistsons).

<u>Here's my setup:</u>
t3/to4b s-trim w/ .63a/r stg1 clipped
DSM 450's
DragIII manifold
2.5" DP
Deltagate
TurboXS RFL BOV
Spearco 28x6x3 intercooler

For all of you high compression/FI people.. how much boost are you running(what's your setup.. motor, CR, boost, etc) Is there anything special I need to know? Any suggestions or tips?
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Old Jun 4, 2003 | 07:30 PM
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DeepSi's Avatar
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Default Re: How much boost would YOU run on 10.8:1 compression? (94TealGSR)

depends on your fuel management you have (hopefully a real good one) and how good your tuner is.
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Old Jun 4, 2003 | 07:37 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (DeepSi)

Get some type of EMS, assemble the setup, limp it to a dyno and tune it to whatever boost you want (with that sort of compression ratio on pump gas you may be limited to 15-17 psi).
"spin it till it pops and back it off a little"
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Old Jun 4, 2003 | 07:40 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (94TealGSR)

Tuner will probably be John at Secret Services (VaporTrail on H-T), and fuel management will be UberChip.

15-17psi? I was thinking like 10... 7 to start with, but 10 in the end.

Forgot to add that I have a block gaurd, for whatever that's worth. (Lets not get into that though )
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Old Jun 4, 2003 | 07:58 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (94TealGSR)

I say max 10psi on stock motor, maybe a little bit higher with John's tuning.
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Old Jun 4, 2003 | 08:06 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (DeepSi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DeepSi &raquo;</TD></TR><TR><TD CLASS="quote">I say max 10psi on stock motor, maybe a little bit higher with John's tuning. </TD></TR></TABLE>

00ps, stock bottom, guess I should have read the setup slower.
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Old Jun 4, 2003 | 08:07 PM
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civicsitek GanGsTa's Avatar
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Default Re: How much boost would YOU run on 10.8:1 compression? (DeepSi)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DeepSi &raquo;</TD></TR><TR><TD CLASS="quote">I say max 10psi on stock motor, maybe a little bit higher with John's tuning. </TD></TR></TABLE>
that sounds good to me too, right about 300 fwhp the ring lands like to give on b series pistons
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Old Jun 4, 2003 | 08:15 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (DeepSi)

yah and say hi to my car for me while your there.
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Old Jun 4, 2003 | 09:18 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (Mikeyslude)

Id say if u werent tuning then 6-7 psi would be ideal, but i would go your original plans, stay somewhere near 10. You dont have a whole lot of room for error, but good thing your getting tuned right off the bat
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Old Jun 4, 2003 | 11:24 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (quikb20)

i would run enough boost to do this to my pistons... aren't they so cute.
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Old Jun 4, 2003 | 11:35 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (lazerus)

I thought that was caused by shifiting to 2nd instead of 6th.
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Old Jun 4, 2003 | 11:43 PM
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Default Re: How much boost would YOU run on 10.8:1 compression? (EL'ation)

looks like mini baked potatos wrapped in foil
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Old Jun 5, 2003 | 07:06 AM
  #13  
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Default Re: How much boost would YOU run on 10.8:1 compression? (lazerus)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazerus &raquo;</TD></TR><TR><TD CLASS="quote">i would run enough boost to do this to my pistons... aren't they so cute. </TD></TR></TABLE>

Those things look like nuggets of silver. Maybe they're worth something?

My wastegate is sprung for 7psi, I think it will stay there untill I get pistons/rods.
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Old Jun 5, 2003 | 08:54 AM
  #14  
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Default Re: How much boost would YOU run on 10.8:1 compression? (94TealGSR)

I would get rid of the delta and get a tial. A boost spike will be your worst nightmare.
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