just fooling withcha 
Revving to 14,000 rpms?
Thread Starter
Teching In
Joined: Oct 2004
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From: Your front yard.
Revving to 14,000 rpms? Is it possible, I know they destroked a LS1 not too long ago to a ?302? I can't remember its peak rpm. Is this possible to reach rpms over 10k with a ls1? What parts would be involved?
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Brett Foote
On The Tree
Joined: May 2004
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Again, a man thinks outside of the box,trying to acomplish(sp?) something against the norm and people skoff at him. You guys are too cool.
Dole_Pineapple, here is what little info I know. I had a LT1 before the 2k Formy I had, and was all into that.
There is a guy who has a very well built LT1 that reves over 8500 RPM's, I know its over but I dont know how close to 10K RPM's it achieves. It reves like a Motercycle, no joke.
One of the main keys in this was the parts were all super lightweight. I know he used aluminum rods.
Dole_Pineapple, here is what little info I know. I had a LT1 before the 2k Formy I had, and was all into that.
There is a guy who has a very well built LT1 that reves over 8500 RPM's, I know its over but I dont know how close to 10K RPM's it achieves. It reves like a Motercycle, no joke.
One of the main keys in this was the parts were all super lightweight. I know he used aluminum rods.
Thread Starter
Teching In
Joined: Oct 2004
Posts: 14
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From: Your front yard.
I don't mind anyone laughing at what I asked, I realize how out of the question it seems, but I mean with enough $$$ anything is possible. There was a guy with a C5R revving pretty close to 10, thats another site I cannot find. Dammit I wish I had my old computer and my old favorites. Whats the max most guys average? around 7-7500ish?
The T-Rex guys are revvin pretty high, Fireball is shifting @ ~7k IIRC. There's surely some custom cams goin a little higher. You'll be looking at a very expensive custom bottom AND top end to rev into the 8-9k range with an LSx series motor. She'd scream like a banshee tho. 
i'm not a metallurgy student, so i'm not current on titanium processes....what would it cost to "forge" titanium? can it be done? i know to weld it you need to be in a pure environment, of some sort of gas. thats why we don't have titanium headers, its so damn expensive to weld. chrome moly would probably be more feasible. dunno about cost tho, or what process it'd need to go through so it could withstand the kind of pressure it'd face in the bottom end of a motor.
Originally Posted by Gary Z
You need to remember that improving breathing sufficiently to take advantage of higher engine speeds may be more difficult than avoiding breakage.
If he were to go with a C5R setup, he'll have to go with a custom intake anyhow. That should help (not cure, but help) the issue. C5R heads flow pretty damn well. 
TECH Addict
Joined: Oct 2002
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From: Mefis
lets try this:
lightest pistons known to man.
Titanium connecting rods.
Titanium crank with about a 2" stroke.
Ohc conversion.
Pneumatic valves
Smaller, lighter valves.
Freaking huge profile camshafts.
Idle at 7,000 rpm.
Sounds like a F1 engine or a CART like engine.
lightest pistons known to man.
Titanium connecting rods.
Titanium crank with about a 2" stroke.
Ohc conversion.
Pneumatic valves
Smaller, lighter valves.
Freaking huge profile camshafts.
Idle at 7,000 rpm.
Sounds like a F1 engine or a CART like engine.
Why the need to go that high? What is your goal to have the highest revving LS1? Just go buy a GSXR if you want a high revving vehicle. Why not have a car that does the dishes? Ill tell you why cause its a stupid ******* idea.
With fully forged internals, 3.25" stroke crank, 6.2" rods, titaninum valves, Comp Cam 978 dual springs, solid roller cam and rockers arms, I think you could hit 9500 rpms pretty easy.