Stock GM LS Engine - Big Bang Theory

Stock GM LS Engine - Big Bang Theory
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Take the Stock GM LS Engine. We are trying to learn everything about it's limits and we will tell you the results.We get an understandable amount of flack from readers about doing so much editorial on the GM LS-series engines, but there's a reason behind our madness: They're the most popular performance engines today and make completely stupid power when you throw boost at them via a supercharger or turbocharger. Internet forums are all atwitter about just how far up the power scale you can go before the LS finally yells ôuncle,ö but we have yet to see any real proof of its limits. So we decided to find out for ourselves. How much boost can we throw at one, and how much power will it make (and for how long?) before it goes pop in one way or another?

Photo Gallery: Stock GM LS Engine - Big Bang Theory - Hot Rod Magazine

Photo Gallery: Stock GM LS Engine - Big Bang Theory - Hot Rod Magazine


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That is crazy!!!!!

^ thats no shit.........

So you're saying I'm OK with 8psi then? :lol: That's pretty damn impressive.

Getting 1200 HP from 300 cid at 27 psi is just sick. I would think 8 psi is a safe number if your engine is in good shape to start with. So, what is the limit for an LS engine ????

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Originally Posted by 2002ssslp

Getting 1200 HP from 300 cid at 27 psi is just sick. I would think 8 psi is a safe number if your engine is in good shape to start with. So, what is the limit for an LS engine ????

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It appears as though the sky's the limit according to that article. Pretty freakin amazing.

Jon

JEE...ZUSSSSSS!!!! :wtf:

Detonation is what kills engines most of the time.

That small lil 4.8 didn't break. I still can't believe it.

so uhhh.... i feel the need for boost all of a sudden.

but then again NA power is fun and reliable.... trick flows and a cam??? already have the intake and headers.... hmmmm

Boost is REAL fun...not just fun :D

Boost is alot of fun. The more boost, the more fun. Breakage is the only thing you have to worry about.

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Originally Posted by 2002ssslp

Boost is alot of fun. The more boost, the more fun. Breakage is the only thing you have to worry about.

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As I am sure you know, if you wanna play, you've gotta pay!

Jon

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Originally Posted by jfl330

As I am sure you know, if you wanna play, you've gotta pay!

Jon

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Well aware of this quote :lol:

Hmm...when I finally go boosted, I guess I'll be keeping the cubes small and putting my 427 into another car.

holy crap, I'd like to see if cubes really do make the difference. Throw that setup on an ls1 and see what happens.

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Originally Posted by LeadFarmer

holy crap, I'd like to see if cubes really do make the difference. Throw that setup on an ls1 and see what happens.

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There is no replacement for displacement. I think Big Daddy said that.

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Originally Posted by 2002ssslp

There is no replacement for displacement. I think Big Daddy said that.

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I think this article disproves that theory completely.

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Originally Posted by ls1camino

I think this article disproves that theory completely.

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Kind of agree with this. Small displacement engines LOVE boost.

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Originally Posted by 35th-ANV-SS

Kind of agree with this. Small displacement engines LOVE boost.

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Yeah, but I'm not sure how I can go from a 427ci to a 325ci and still brag about it...granted I'll have two turbos, but still...