View Poll Results: What Boost

7lbs

8.51%

8lbs

44.68%

9lbs

21.28%

10lbs

25.53%

Voters: 47. You may not vote on this poll

Another Boost question POLL

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Jun 11, 2006 | 04:07 PM

JerikSS

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Another Boost question POLL

What max boost with a turbo would you guys run on a stock bottom end with lq9 heads, intank fuel tank, injectors, ls7 clutch and a 232/228 .595/.588 115lsa turbo cam?

Last edited by JerikSS; Jun 11, 2006 at 04:31 PM.

Jun 11, 2006 | 04:12 PM

~JOSHUA

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Boost is also relative to flow. Like on a supercharger with a fixed pulley porting those same heads will make the actual manifold pressure go down.

Jun 11, 2006 | 04:19 PM

2002/Black/SS

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i would say 9 pounds if u didnt have the cam and 8 with the cam

Jun 11, 2006 | 04:31 PM

JerikSS

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yeah i have a big cam

Jun 11, 2006 | 05:17 PM

SuperZ

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alot of it depends on if you run meth injection or not and what size turbo.

Jun 11, 2006 | 10:40 PM

JerikSS

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it looks like i am going to keep it at 8psi, wonder how much power I will be making....

Jun 12, 2006 | 11:52 PM

JerikSS

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anyone interested in the poll

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Jun 13, 2006 | 06:53 PM

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I say 10 psi. I ran 10 for a while on a stock bottom end with a SC. No problems to report.

Jun 13, 2006 | 07:23 PM

#10

JerikSS

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no meth and the turbo is a t76

Jun 13, 2006 | 10:49 PM

#11

Mike 01WS6

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Have run 10.5 for 10k miles, with no issues what so ever.

Jun 14, 2006 | 02:13 AM

#12

JerikSS

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The votes are between 8 and 10... how about 9? Just want it to be safe, not exactly rich or anything, and this stuff is expensive...

Jun 14, 2006 | 05:49 AM

#13

longrange4u

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LOL Ask me what happened to my TA when I started running 10lbs plus on almost that exact config.....

Jun 14, 2006 | 03:47 PM

#14

JerikSS

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I actually now remember reading your post a while back, sorry about your engine dude. The numbers on your sig what boost level was that??

Jun 16, 2006 | 09:08 AM

#15

mdhmi

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I didn't see an option for 12 #'s.

You can run more than 7-8 lbs if you've lowered your CR and run good fuel. It was explained to me that it can be safer to run more boost with a convervative tune than run low boost and a walls to the wall tune.

Oct 7, 2007 | 11:54 AM

#16

ddnspider

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Quote:

Originally Posted by 2002/Black/SS

i would say 9 pounds if u didnt have the cam and 8 with the cam

i would like to know the basis for this that going from a stock cam to a 23X cam drops 1 psi

Oct 8, 2007 | 03:37 PM

#17

Zombie

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where is the 15psi option?

10PSI will be OK with a good tune. The tune is the most important part of the setup.

Oct 8, 2007 | 03:41 PM

#18

geeteego

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Mine didn't fare well at around 8 psi...stock heads, though.

Oct 8, 2007 | 03:42 PM

#19

67Firebird455

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If you want it to be "100%" reliable, run 8. I ran 8 and started getting KR on my rig, a lot to do with tune. I ran 5 and didn't get KR, so... I also believe 10psi is doable with a correct tune, none of this mail order stuff.