Hey guys, Im looking for a good cam and cant decide what to get. Ive heard good things about Comp Cams, but Ive been reading up on Lunati's new ls1 Voodoo cam. Part #60510 (212/218 .531/.531) on Holley's Lunati page for those interested. it has a wide power band (1600-6400) and is still very streetable for this daily driver, according to Lunati. Any suggestions about this cam or others?

 

That's too small. I think the stock Z06 cam will make slightly more power than that thing.

 

That is a super small cam! It doesn't hardly seem like it would even be worth swapping out.

I am in the same boat as you in that I am looking for a good, streetable cam. You will find different peoples opinions of what a streetable cam is varies widely. I found that if you are looking for something that gives a good power gain without being wild, stay under 230 degrees duration. I'm probably going to go with a Patriot 226 cam (226/226 - 0.585/0.585 with 112 lsa) or a TSP 228R cam (228/228 - 0.588/0.588 with 112 or 114 lsa). A smaller lsa will give you a choppier idle but will keep the power band lower. At the very minimum I would think you would at least want a TR 224 cam which is a good, proven small camshaft.

 

So TR's the way to go huh? I actually dont know much about those cams but ive only heard good things about them. Stay under 230 duration? I think Lunatti offers a voodoo cam right around there. Is that brand worth the money, or should i stick with comp cams and TR?

 

Stick with Futral Motorsports' cams.

The F13 is pretty much the best bang for your buck, while still maintaining great drivability.

There are hundreds of cam threads on this subject if you search.

 

yeah I'm with the others if you stick that cam in there you'll go "gee I think there is a difference in performance even if I don't feel it"
Anyway here are a couple other choices for you. http://www.vincihighperformance.com/...%20LS1%202.htm I've heard great things about his cams
and this place
http://www.sdparts.com/catalog/lsgen...Camshafts.aspx You can have them change the specs to anything you want, if some of the numbers are not what you like. The crane cams are very easy on your valvesprings, Crane told me you won't have to change the springs again, unless you plan on going over 100,000 miles. The TR cams are great but because they are more aggressive, they require spring changes much much sooner. I think most people change them before 40k depending on which cam and how hard its driven. Its something to think about if you hate changing springs as much as I do.

 

You can have any shop grind a cam to your specs. Most of the times it'll cost the same as the shop spec'd cams.

IMO Vinci/Crane cams are old technology. They're lobe specs look just like the cams that were first being ground for the LS1. Hardly cutting edge. They're low lift so to get the performance that you would from a more modern grind with higher lift you have to spend another $400 for their longer ratio rockers.

With a 218 duration cam you're most likely looking at 350 whp. The 224-228 grinds will drive just as well and get you 370-380 whp. I daily drive on a 226 duration cam. Many dd on 230+ grinds.

What mods do you have done so far?

 

No, a choppier idle is caused by more overlap.

Overlap is a product of LSA and duration. So on a 114 LSA with 218 duration it won't be very "choppy" but on the same 114 LSA with a 234 duration it will be. This is because there is more overlap with the greater duration.

The amount of overlap is also what makes a cam "clean" or "dirty" in the eyes of emissions.

The sad thing is that I can't for the life of me remember how to find the amount of overlap right now. Anyone know the formula?

 

Formula?? You don't need no stinkin' formula...

http://www.wallaceracing.com/overlap-calc.php

BTW, my cam as 11* of overlap according to the calculator. Those who say drive-ability isn't in the tune can kiss it...

 

Mine only has 2*.

Caculators like that, that do all the math is nice.

 

11 isn't much at all. You must have a 112 LSA cam

 

BTW, I'm at 19* valve overlap.

The cam in my supercharged Vette was at -13

Mike

 

Not necessarily the case. I made 381 rwhp/373 rwtq with a GM Hotcam. 218/228 .525/.525 112 lsa.

 

Exactly. Most of today's cams are making anywhere from 400-430 rwhp.

Mike

 

I am aware. I thought his claim of 350 out of a 218 duration cam was a touch soft. That was my only point.