00cls1camaross

i woul like to make peak power at less than or equal to 6k rpm. Any idea's for a cam?

Greed4Speed

Ya, go to tech. Read the big cam thread and search and read some more threads. Learn all you can and then make your own educated descision.

Your stock cam makes peak power less than or equal to 6K rpm. You need to know more in order to ask better questions.

00cls1camaross

alright thanks for the advice...

-Dakota

jjones

My hotcammed M6 makes 388rwhp around 5800 - peak tq is 4400 - can't find graph - sorry, but it does have a nice lope due the reasons indicated on this thread. Certainly not cutting edge technology, but the hot cam can be found for very low $$$$ . . .

SSCamaro99_3

The link in my last post is my dyno from my Hotcam car. 381 at 5950 and 373 at 5000.

StudyTime

I find it interesting that the choppy idling HOT cam makes power to less than 6000 RPM and the CheaTR cam keeps pulling to atleast 6500 RPM.

Ben T.

Greed4Speed

CheaTR has a much more lift, shorter duration, and wider LSA. Its a larger cam with less overlap. It also run XER lobes where as the hot lobes are far less agressive which makes for a rougher idle w/smaller specs.

00cls1,
These numbers on the hot cam definately aren't the average. Average is much lower. There are guys getting 400 hp from the 224, but most get around 370-380. Any time you look for a cam look at the average gains over a stock cam, not someone's peak HP on a freakishly strong engine.

I've seen a bolt on only car pull over 350 hp (not what the majority can do), but I was at 320 (less modded but still lower). If we did the same cam change and both saw a 20 hp gain; he'd be 370 and I'd be 340.

00cls1camaross

yeah i am not looking for an agressive cam, just somethhing that sounds good and give reasonable power. i would one day though (mostly in my dreams) love to build a streetable car that can beat viper and the new z06

Kraest

I would NOT use LS6 springs with an aftermarket cam, especially with fast ramp rates and/or longer than stock duration.

Kraest

Check out Futral Motorsports' F-9 or F-11 cam.

Mike

00cls1camaross

alright i readand i came up with this cam:

FMS Custom Grind Camshaft - 224"/228" .588"/.576" 114LSA

apprently from what i have read the

224''/228'' is the duration of the intake/exhaust

The reason that i chose a lower intake duration is to have a lower peak power and a better hp curve.

I bought a book called Chevy LS1/LS6 Performance and i cant find out what the exhaust valve effects

.588"/.576" is the lift intake/exhaust.

i read ls1 tech's cam page and teh book and all i came up with is tha maximum lift is dictated by camshaft duration.

So can anyone tell me what lift effects?

Last, 114 is LSA (Lobe Separation Agngle)

wider lobes will produce smooth idles and broad torque band. the tighter there lobe separtation the more peak power at a narrower torque band and a more choppy idle.

I chose 114 LSA over 112 because i will have a narrower torque band.

how many rpms can the ls1 handle with stock internals... when i looked at http://www.futralmotorsports.com/fms....asp?pf=1&pg=5
i saw how the power band was. This cam that i am looking at says 1800-6600 rpm. Can my motor handle it?

Any input would be apprecaited,

-Dakota

SSpdDmon

I wouldn't spin past 6200rpms on stock internals. You're just asking for a bent pushrod. If you go with new springs (which you will need with a new cam), titanium retainers, and hardened pushrods, then you should be able to run it up to 6600. The 114 will have a smoother idle as you said and is prefered for A4's. With full bolt-ons and a good set of heads, that cam will get you over 400rwhp. Good selection if you ask me.

00cls1camaross

anyone else?

Kraest

I shift mine at anywhere from 6500-6800. The rev limiter is set at 6900, which I've hit on more than one occasion.

Sounds like a winner Personally I'd get the cam ground on the 112 LSA.

You'll need the entire kit that Futral Motorsports offers: hardened pushrods, springs, titanium retainers, and cam swap kit that includes all of the gaskets.

Mike

Kraest

And also if you don't have it already, pick up some longtube headers and a little more gear won't hurt..... and a dyno-tune will be optimal.

Mike