Topic: Voodoo Cam?
in Forum: C3 Engines
Keep noted I got a 700r4 with 3.55 rear 2200 stall, performer eps with 750 cfm carb and Headers. 10.2 compression with TFS alum heads. Matt? Ben? Ken? or anyone else with lots of cam selection experiance?
I don't have it installed as of yet, but at my house is a Voodoo 60103 cam, lifters, valve springs, and roller timing chain. All from Hooker. I think it's a good choice. What more can I say? I recommend the new valve springs and valve seals while you are in there.
I expect the cam to operate very well with my stock torque converter, and maintain good, although slightly less, engine vacuum to operate the headlights etc. I'm starting out with a whimpy stock 75 L-48 engine, 165 HP.
Before I start it will get dyno tested. Then perhaps some ignition work or upgrades, and another test.
The first mod will be a true dual exhaust and Hooker ceramic headers with the Hooker Aero Chamber mufflers, along with a Weiand 8004 intake. All of this stuff is coming from Hooker.
The exhaust pipes I got from Allen Stainless. I got the alum pipes bent to fit my 75 with turbo 400, and fit the headers, and even got the small pipes from the stock exhaust location to the Aero Chamber mufflers. It will get dyno tested again.
Then the Voodoo cam and roller timing chain will go in. Another trip to the dyno.
Then some cylinder head work to the original heads, and a final trip to the dyno.
Should be interesting. Yes there are more steps and some repeat task the way I'm doing this. But it's the only way to say exactly which did what. Should be interesting. I hope to be able to get started in a couple of weeks.

Well you have a fairly good engine combination to start with, IE heads, Intake, Carb and such. The comp cam is smaller, so anything larger will make more power.
As a C3 owner our only stumbling hurdle is the vacuum system. It can limit our cam selection, unless we make other changes, provisions or additions.
Personally I prefer a smaller cam. The cam I actually have is actually a older 06109 cam from Lunati. I could have went bigger, but I have used this cam in the past and I know it gives good performance. here are its specs.
284° |
228° |
.480" |
.320" |
107° Int C/L |
This cam is smaller then both your cam and the 60103. I expect this cam to make 400 Hp and 420 lb ft, just as it had in many other combinations I have done. Surprising this same cam in a 383 engine put together for PHR magazine made 420 HP and 460 lb ft. Part of making good power is in the intake and heads which you have. So if you were to make the change I suspect you won't set the world on fire, but you will make probably another 20 to 30 HP.
I will tell you the Voodoo Grinds are awesome. Not just saying that, I have seen and heard them ran. Chevy High Performance magazine is getting ready to do several dyno tests with these cams. I'll keep an eye out for the issue.

I checked and can now fess up. The reason for doing the multiple dyno test on my car is documentation for publication. The build up is going to be an article in Corvette Enthusiast Magazine. Photos of the procedures will be included. I don't know which issue as of yet.
No, the school does not have that equipment. All of the test will be chassis dyno. I'm only 25 miles from Mustang Dynometer. They are one of, if not the, largest mfg. of dynos. Their world headquarters and manufacturing is in Twinsburg Oh. 30 minutes and I'm there. They have agreeded to do the dyno pulls. Granted that will involve several drives in the Vette back and forth. Just can't see driving the Vette as a problem.
I seem to be in a good place. 25 miles to Mustang. 5.5 miles to Summit Racing. Within 50 miles of three large Dragstrips including Norwalk, or several oval tracks. 100 miles to Mid Ohio, although I have never seen a race there. Also about 100 miles to Great Trails Dragway. Mr. Gasket and Permatex in Cleveland, about 40 miles.
I may do some of the porting myself, or may have a local machine shop do some of the work. Of course that is on a full disassembled head. I won't pay anyone to do that. But I do need some milling and the heads will go the the machine shop for at least some of the head work.

i have run software simulations on quite a few of the voodoo cams..
since i have a little time before mine is back in operation i am waiting and hoping they come out with an HR version of the 268/276 for the BB.
I am building a 383 for my business partner and we plan to use a 262/268 for his..
I have yet to find another manufacturer with a dual plane cam whose lift and durations are comparable to the voodoo lines.. they seem to be optimized very well for their apps..
