streetk14

iTrader: (2)

I posted this in the internal engine section, but thought it might be better in FI.

I'm trying to figure out if it's worth swapping cams in my motor. I have an '02 LS6 with an M6 that is in my '67 Camaro RS. I am waiting for my mp122 Magnacharger to arrive (I've been waiting for 6 weeks already), and I am getting my car ready for the blower. I have a new set of heads and headers that I will install with the blower & here's what my setup will be:

2002 LS6 & M6
Patriot LQ9 stage 2 heads w/ 72cc chambers
2002 LS6 cam
1 3/4" stainless works long tubes
2 1/2" x-pipe dual exhaust
4.11 rear gears

I am considering swapping my LS6 cam for a 224/228 114 on XER lobes. I guess I'm trying to figure out what kind of power gains I can expect from the swap, and how it will effect my powerband/drivability. I have been told the LS6 cam is a great blower cam, so I'm kind of tempted to leave it in. At the same time, I want to take advantage of the Patriot heads and blower. Any suggestions? Thanks,

Andy

98turbls1

iTrader: (17)

Do it!!!! That would be a great cam to put on a blower motor...Enough to get the juices flowing but not too much to scare the ladies away...Know what I mean... =)

dschmittie1

iTrader: (64)

Speed inc recomended this cam for me with my procharger for my new forged motor over the 02 LS6 cam I had.


224 232 .581 .595 114

streetk14

iTrader: (2)

Thanks for the info, that's pretty close to what I had in mind. I was thinking 224/228 or 224/230. This car is not a daily driver, so I'd actually like a little lope to the idle. I guess I'm still trying to figure out if the power gains are worth the time & expense of doing the swap.

Andy

Pro Stock John

iTrader: (34)

What would make the swap worth it to you Andy?

kp

iTrader: (34)

It depends what you want to do, either cam is pretty low maintenance. I picked up 1 mph or so swapping from an 01 z06 cam to a 222/228 115 XE, I did it mainly because the z06 cam was droping off hard at 6700rpm, this cam will pull to 7000+ but the car really didnt pick up ton.

I would do it just to get a little lope, a z06 cam idle sounds pretty boring

ty_ty13

iTrader: (42)

speaking of cams... how many degrees did you retard your cam kp?

right now my HP peaks at 5800... im not sure if its the cam or heads... but it doesnt make peak HP at peak boost...

No Juice

iTrader: (11)

What was the ICL of that 222/228 cam?

streetk14

iTrader: (2)

Honestly, I'm not sure what I'm going to want once the blower is on the car. I guess I'd have to see where my peak power numbers are and how ridiculous the power is to handle on the street.

The main reason I want to do the swap is for the sound. The LS6 cam does not make this car sound like a '67 Camaro should.

On the other hand, this is a stock short block motor right now, and I'm going to try and limit the rpm to keep the thing together. I do realize that my Magnacharger will make peak power at a lower rpm than your procharger. I'd like to keep the rpms below 6700 or so until I build my forged 402. I guess I'm shooting for peak power around 6500 rpm. I don't want a cam that is going to require me to rev the motor to 7k.

What do you think?

Andy

streetk14

iTrader: (2)

Maybe a 20 hp gain up top over the LS6 cam without losing much in the lower rpm ranges? Is this wishful thinking?

Andy

kp

iTrader: (34)

its installed at 115 ICL it was ground +2 (113 ICL) so I guess its 2 degrees retarded

ty_ty, thats pretty low, this peaks around 6400 but it stays pretty flat until about 7100 then starts to dive.

kp

iTrader: (34)

I felt no difference in throttle response at all between the two cams, if I shift the car at 6600 or so it runs about the same as it did with the z06 cam so really all the bigger cam did was give me the ability to wind it up higher and make a few more HP up top, dont think I gave up anything down low - clould have even helped it some in 35-5000 range but with a 5500 stalled auto dyno numbers are useless under 5500

streetk14

iTrader: (2)

How's that cam sound?

kp

iTrader: (34)

It has a little chop, nothing radical, this is at like 950rpm and I didnt have a chance to drop the idle yet, it will idle down nice to 800 rpm or so and sounds pretty decent:

http://video.ls1tech.com/video/beda5...c63754814d.htm

Sure sounded better then the z06 cam:

http://video.ls1tech.com/video/050fc...854c860d4c.htm

mikep2002

iTrader: (10)

Kind of off topic but wasn`t there a recent post about Andy(A&A corvette) swapping out a cam and going with the LS7 cam and showing some incredible numbers. Just as a cheap alternative to the LS6 cam.

NemesisC5

This cam would sound SWEET and perform very well extending the top end a little for a Maggie that is FULL of LOW END GRUNT. You would be wise to swap out your 4:11 for a 3:42 in Maggie setup, 4:11's are more for NA or centrifugals

NemesisC5

I posted that thread, and think the LS7 cam would be a great blower cam, however it would not deliver the lope that I believe "streetk14" is looking for

streetk14

iTrader: (2)

Your video clip of the LS6 cam sounds a lot like my car right now


The bigger cam sounds much better, but it does sound like it's idling a bit high. It will probably sound great when you drop the idle to 800.

Andy

streetk14

iTrader: (2)

Is this a cam that Speed inc. stocks? I might have to check them out.


I'm not really worried about losing grunt down low, since I think I'll have more than enough reguardless of my cam choice. I am trying to keep the peak power at 6500 rpm or lower to help keep my stock short block from coming apart.

And I will be changing my gearing. I have a Currie 9 inch out of another car that I will be swapping into this car. It has 3.89's in it right now, but I'll probably change them to 3.70's before I bolt it in my '67.

Andy

kp

iTrader: (34)

It sounds nice at 800, but I leave it up higher so I can idle into the staging beams. Cant hear my car idle at the track much anyhow with all the open header cars around