How much boost can I run?

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Dec 30, 2009 | 12:11 PM

XtremeDime

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From: Anchorage, ALASKA

How much boost can I run?

stock LS1(internals and all) with 317s, ls6 yellows and 7.4 chromemoly pushrods. I was going to just run stock WG spring, which is 5.8psi, but now that I have lowered CR due to the heads I feel like I can get away with more boost. Would it be feasible to be able to up the boost to lets say 9psi??

Dec 30, 2009 | 12:14 PM

AFASTYZFR1

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Go for it, should be alright!

Dec 30, 2009 | 04:15 PM

XtremeDime

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haha, short and sweet. i like it!

Dec 30, 2009 | 04:57 PM

AFASTYZFR1

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From: Florida

You can go for around 550rwhp and be alright on stock internals.....as long as tune is good

Dec 30, 2009 | 05:07 PM

383lt1impala

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From: SURCAL909

cant stock ls1s boost 10psi? and u have a lower compresstion since u have the 317s.

Dec 30, 2009 | 05:10 PM

XtremeDime

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From: Anchorage, ALASKA

I was told beyond 8psi, they have issues with blowby but since I lowered CR that should allow me more boost.

Dec 30, 2009 | 05:14 PM

AFASTYZFR1

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From: Florida

I ran 10psi on my stock motor with a cam and headers

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Dec 30, 2009 | 05:28 PM

AFASTYZFR1

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From: Florida

Quote:

Originally Posted by XtremeDime

Awesome! Did Frost send you a base tune and you modify it or did you actually bring your car to him?

He tunes my car in person, but he does do tuning by email if you buy hp tuners. You basically keep sending him logs.

Dec 30, 2009 | 06:29 PM

#10

MUSTANGBRKR02

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From: Maine

Yes with the boost it will be alot of logs!

He is doing a 228 cam car for me now.

Dec 30, 2009 | 07:29 PM

#11

11SECSS

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Where almost done getting my tune right I'm up to 7.5 # on a all stock long block .

Dec 30, 2009 | 07:40 PM

#12

gametech

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From: Stockbridge GA

Quote:

Originally Posted by XtremeDime

You will probably come in just under the limit of those valvesprings. Much more boost and you can expect float. As long as you don't up the rev-limiter too much it will probably be fine.

Dec 30, 2009 | 08:36 PM

#13

The Fugitive

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From: Reno, NV

and just remember it's all about the HP you are throwing at the motor not the amount of boost. Yes a lower compression is good to avoid other harmful things from happening (detonation, cyclinder pressure issues, etc). But you are a step ahead of a lot of people.

Dec 31, 2009 | 05:59 PM

#14

ModularTurbo

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Quote:

Originally Posted by XtremeDime

Awesome! Did Frost send you a base tune and you modify it or did you actually bring your car to him?

Hey if you ain't tuning it yourself have Frost do it he'll steer you in the direction as far as whats going to work and what won't. He is VERY knowledge.

FROST=MODULARTURBO approved LOL

Dec 31, 2009 | 06:26 PM

#15

XtremeDime

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From: Anchorage, ALASKA

Haha, my plan was to have him do the base tune and have it dyno tuned locally. Lol, good to know you approve of his work!

Jan 1, 2010 | 12:04 PM

#16

youngrigo

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From: Bay Area, CA

Mods in sig..... Stock block, heads, cam and 9psi

Jan 1, 2010 | 03:06 PM

#17

black98ws6ta

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From: louisville,ky

10 psi with a good tune is nothing, mine has seen 15. Only difference being a cam, better valvesprings, and head studs(which are probably not needed).