Help me choose my CAM!!!
Thread Starter
Instructor
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
Help me choose my CAM!!!
I have a 99 FRC, 80K miles. LS1, MN6. I don't race much, but would like to visit the quarter mile a couple times a year. My car isn't a daily driver but I take every chance I can to take her out. I will be putting an LS6 intake and stock LS6 Heads on the motor at the same time. I already have a CAI and LT headers. What are some cam specs that would work well in my situation. I would like to make big horsepower but a broad torque curve is more important.
Last edited by chrisbenoit; Mar 14, 2010 at 04:29 PM.
Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
Good candidate for 21stcenturymusclecars.com CMC-14 cam (also called Lpe GT18), 228/232, .585/.595 and 113 LSA, best allrounder cam should go well with LS6 heads and Ls6 intake. Expect to make 410-415 Rwhp and broad torque curve if yours manual car, otherwise 390ish HP with Auto.
Why iam saying because i have brand new and dont plan to modify. Pm me if you are interested should be good if i ship to a local canuck bro.
This is a Comp cam and on Xer lobes. Expect little choppy idle but not too much without any cam surge, and yet still pull great from mid range to 6500 rpm.
Why iam saying because i have brand new and dont plan to modify. Pm me if you are interested should be good if i ship to a local canuck bro.
This is a Comp cam and on Xer lobes. Expect little choppy idle but not too much without any cam surge, and yet still pull great from mid range to 6500 rpm.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Just a suggestion, Chris, but since you're going to all the work to install H/C, now is the perfect time to do some things. LS6 heads are great, but will work better with a CNC program, and milling to increase compression. Call TEA, or one of our fine vendors, and get a price on a Stg2 or something like that to maximize your mod. Get the chambers to around 60cc and a cam like the LG G5X-1 and it'll rock your world, have great TQ everywhere, and even increase your fuel mileage. Remember to get high quality valve springs, and pushrods, especially springs.
Racer
Joined: May 2009
Posts: 270
Likes: 1
From: Athens, Georgia
g5x1 on 113 or 114lsa. Cant go wrong. I got a 224/228 xer on 114+4, but wish i had gone with the g5x1 for a little more top end.. Im spraying so it all works out 
The cam in post #2 sounds great! About where you want to be without having to swap out the gears.
The cam in post #2 sounds great! About where you want to be without having to swap out the gears.
Last edited by whiteboy572ci; Mar 15, 2010 at 07:44 AM.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
This may be a stupid question but, I have a few friends with muscle cars with big cams and some went too big and now have very poor vacume and therefore no power brakes. Are our cars set up the same way?
Tech Contributor
Joined: Jan 2007
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From: Dyer, IN
Thread Starter
Instructor
Joined: Apr 2009
Posts: 242
Likes: 1
From: Pictou Nova Scotia
What type of manners and HP/TQ numbers could I expect from a cam like the G5X1 with stock LS6 heads and intake manifold. I'm not looking at ending up with a race car, but would like a fairly healthy performer. Thanks.
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Le Mans Master
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From: Scarborough ONTARIO
Le Mans Master
Joined: Jan 2009
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From: East Texas
its 224/230 581/588 on 114
Race Director
Joined: Sep 2005
Posts: 11,060
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From: Pasco WA
The X1 is a Comp cam, pretty much the same as post #2 @ 228-232 and your choice of LSA. 112 is gonna have a nice lope, and 114 will be a little smoother, and easier to fine tune. I would expect about 415/395 RW assuming LTs and a CAI. You can bump that considerably if you tweak the heads like I suggested before. Either way, it'll be a nice bump from the stock cam, which is pretty wimpy.
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
Just a suggestion, Chris, but since you're going to all the work to install H/C, now is the perfect time to do some things. LS6 heads are great, but will work better with a CNC program, and milling to increase compression. Call TEA, or one of our fine vendors, and get a price on a Stg2 or something like that to maximize your mod. Get the chambers to around 60cc and a cam like the LG G5X-1 and it'll rock your world, have great TQ everywhere, and even increase your fuel mileage. Remember to get high quality valve springs, and pushrods, especially springs.
So far it looks like you've got good advice, if you keep bumping your post you're going to start getting conflicting opinions and ideas; then you'll really be confused
Instructor
Joined: Aug 2008
Posts: 119
Likes: 0
From: Round Rock Texas
EnglandGreen Mayhem II. They'll hook you up with a great cam package. I'm running their Whiplash II and love it but the Mayhem II will give you a bit more broad torque band. Sounds great too!
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