Safe maximum RPM for my setup?

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Apr 22, 2014 | 03:17 PM

skiziFiziks

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Staging Lane

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From: Raleigh NC

Safe maximum RPM for my setup?

Hello,

I am wondering what max RPM you guys would run on my setup. I was shooting for 7k but wouldn't mind opinions.

L33 w/ stock bottom end at 74k
-Katech Rod Bolts
-Katech oil pump
-LS7 Lifters
-BTR Pushrods
799 heads w/
-BTR dual platinum springs and tool steel retainers
-Manley stainless valves, maybe 1-5grams heavier than stock each
-224/228 .581/.571 112+4
-MLS Headgaskets
- Subtracted .026" from combo of milling and thinner HG
LS6 Intake
-CNC'd LS1 Cable TB
Longtubes 1-3/4"

Where would you spin to?

Last edited by skiziFiziks; Apr 23, 2014 at 04:52 PM. Reason: Added one part and clarified another...

Apr 22, 2014 | 04:18 PM

conan

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From: Back in the Burg

Run in on the dyno untill it stops making power then set your rev limiter there. No need to spin it higher than it needs to. My car stops making power at 6,800 rpms, thats where the limiter is set and I shift at 6,500.

Apr 23, 2014 | 05:53 AM

nascarnate326

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From: Michigan

I have a 224/224/112 and mines set to 6500 I try and shift at 6300. It's done making good torque way before that anyway.

Apr 23, 2014 | 11:55 AM

skiziFiziks

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Staging Lane

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From: Raleigh NC

Thanks for the replies. I agree and was planning on limiting revs right after power falls off.

I was more concerned with what RPM the bottom and upper end components would be stable to. Am I going to be safe pulling up to 6.8-7k if the power is there?

I had spec'd the cam to fall off higher up and sacrifice some low end torque to help deliver the power to the ground more easily.

Apr 23, 2014 | 02:25 PM

Mavn

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From: Houston

Spin that ****** to 7k..

Apr 23, 2014 | 02:30 PM

Rise of the Phoenix

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From: Jefferson City, MO

No need to rev it any higher than where it stops making power at. I would say with a cam that size, shifting around 6500 RPM's would be good and plenty safe.

Apr 23, 2014 | 04:58 PM

skiziFiziks

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Staging Lane

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From: Raleigh NC

Quote:

Originally Posted by Mavn

Spin that ****** to 7k..

^^ I like your style

I have done a bit more looking around, I think you guys are right my power will more than likely fall off midway through the 6's judging by other curves on similar cams. Dyno day will be the deciding factor I guess.