Z06Vette.com - Corvette Z06 Forum - I Want to swap cams BUT it must idle close to stock. Any suggestions?

CRUZMISL · 07-20-2002, 06:22 AM

Lots of cam choices so I'd like to get some opinions from people who have done it. Max power isn't my goal but a nice bump in power while maintaining driveability and idle quality is priority.

How long does it take for a cam swap anyway?

Thanks a ton!

Joe

TAMUz06 · 07-20-2002, 06:50 AM

Call MTI or someone and ask them about doing a custom grind on a 116 LSA....wouldn't even know it was there

fcalmes · 07-20-2002, 07:24 AM

I would recommend the Katech Stage I cam that goes with the Stage II head and cam package. The Stage II cam may be a little wild for your needs. Call Katech and ask for Chris.

http://www.katechengines.com/

CRUZMISL · 07-20-2002, 07:58 AM

I had asked Chris and this is what he said.

"you would want to have a cam around the 224 @ .050" range and keep the lift at about ..570-.575". I would also keep the lobe sep. around 114-116, this will give you a good idle quality"

I have talked to others who said,

"No way a cam with 224 duration would idle smooth. For good idle quality, I would look no more than 218 duration."

Joe

quikdoc · 07-20-2002, 09:51 AM

I have an associated question
Are you H&C guys using roller rockers? If not, why not?
Doc

ZO6Cam · 07-20-2002, 12:36 PM

Do you mean aftermarket rocker arms (1.8 ratio)?

quikdoc · 07-20-2002, 08:28 PM

Yes aftermarket... there is some fine equipment available...Who has upgraded to aftermarket roller rockers? Is it worth the added cost?
Doc

Katech · 07-22-2002, 09:37 AM

CRUZMISL - I guess it matters how close to a stock idle you really want. The 224 will give you a noticeable lump but it is not that wild. Especially if you turn the idle up, this will take some of the lump out of it and smooth it out. On a 114 or 116 it will have good idle quality for that size cam. Also you could get it with 222 @ .050 witch will also help out. The 218 cam will not give you that much of a increase, at least not enough for me to go through a cam swap in a Vette if it was my car. I will be glad to help you with this choice and discuss this further if you would like. Just give me a call.

Thanks,
Chris Gelineau
Katech Inc.

tdzee · 07-22-2002, 10:03 AM

Does the head/cam swap void GM warranty? Your package makes some serious power. I would love to do it, but want to keep my warranty.... at least a while longer

Thanks

Katech · 07-22-2002, 11:54 AM

tdzee - It matters how close of a relationship you have with your service manager at the Chevrolet dealer. In most cases it does void the warranty or at least most of it.

Chris Gelineau
Katech Inc.

quikdoc · 07-22-2002, 12:10 PM

Which is why I'm waiting until next year lol
I expect that it will eventually happen. But then again Katech comes with a warranty I believe.
Doc

ZO6/Les · 07-23-2002, 10:32 AM

Chris,

With stock heads what is the expected RWHP improvement with the 224 cam that you mention? And what is the cost?

Thanks in Advance

Les

Quote:

Originally posted by Katech
CRUZMISL - I guess it matters how close to a stock idle you really want. The 224 will give you a noticeable lump but it is not that wild. Especially if you turn the idle up, this will take some of the lump out of it and smooth it out. On a 114 or 116 it will have good idle quality for that size cam. Also you could get it with 222 @ .050 witch will also help out. The 218 cam will not give you that much of a increase, at least not enough for me to go through a cam swap in a Vette if it was my car. I will be glad to help you with this choice and discuss this further if you would like. Just give me a call.

Thanks,
Chris Gelineau
Katech Inc.