LS1TECH - Camaro and Firebird Forum Discussion

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-   -   Rpm's (https://ls1tech.com/forums/generation-iii-internal-engine/1343257-rpms.html)

Cold06 Oct 18, 2010 02:48 PM

Rpm's
 
Searched and searched for the answer what can a stock LS1 handle is 6000 rpm it? All i can find is 7000 is max for stock bottom end PLZ HELP:bang:

Sales4@Texas-Speed Oct 18, 2010 02:50 PM

We usually set our rev limiters around 6800 RPM for the stock bottom end. The stock rod bolts typically don't do well with anything over 7000.

blsnelling Oct 18, 2010 02:53 PM

6000 is a day in the park for a LS1 bottom end.

Cold06 Oct 18, 2010 02:59 PM


Originally Posted by JohnJanz@Texas-Speed (Post 14006215)
We usually set our rev limiters around 6800 RPM for the stock bottom end. The stock rod bolts typically don't do well with anything over 7000.

what about the stock top-end will it handle 6800?

blsnelling Oct 18, 2010 03:01 PM

Push rods should probably be replaced. Rocker arms are fine. Not sure about stock springs.

Cold06 Oct 18, 2010 03:13 PM

I'm looking into the VXR5 cam, springs,push rods, PP tb, LS6 intake but i wanted to know what the stock topend could handle

Cold06 Oct 18, 2010 05:28 PM

anyone??

KCS Oct 18, 2010 06:07 PM


Originally Posted by Cold06 (Post 14006892)
anyone??

Depends on a lot of different variables. The parts you listed already changes what RPM the "top end" can handle and "safely" is open to interpretation as well. Just go with 6800RPM and leave it at that.

Cold06 Oct 19, 2010 07:16 AM


Originally Posted by KCS (Post 14007044)
Depends on a lot of different variables. The parts you listed already changes what RPM the "top end" can handle and "safely" is open to interpretation as well. Just go with 6800RPM and leave it at that.

I understand that but i really need to know what the stock top-end can handle

01ssreda4 Oct 19, 2010 07:55 AM

Stock springs are crap. Stock pushrods are crap. Don't spin to 7k.

Cold06 Oct 19, 2010 03:17 PM

I need a number!!! Lol 6100,6200,6300,6400,6500,6600?

KCS Oct 19, 2010 03:41 PM

There is no definite answer.

If it makes you feel better, I'll say 6500RPM.

mtuggle86 Oct 19, 2010 08:29 PM

If you have a 2001+ car your engine has the same rod bolts as the LS6 which was introduced in 01. That engine in the Z06 was rev limited at 6600 from the factory so imo its safe to say an 01+ ls1 shortblock can handle at least 6600 for a long time. Im setting my rev limiter to 6800 with my new cam.

Cold06 Oct 19, 2010 08:41 PM

Ok I guess ill leave it alone for now, and when i cam it then ill jump to the 6800

Schwanke Engines Oct 20, 2010 08:23 AM

I would not rev the stock valvetrain more than 6300. Those springs are not very good.
I would not rev the stock rods over that either, if you had the stronger LS6 style bolts and valvetrain, you could go to 6800. GM engineered the LS6 vavletrains to be stable to 7000 for any overrev or missed shift.


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