RE: [Chevelle-List] Cam

Thu, 02 May 2002 15:49:03 -0700

Another who thinks it may be a bit much.  I have a 396 +.060, 10.25:1 compression, Accel/DFI injection, MSD dist/6AL/coil, BlackJack headers, 4-spd and 3.07 gear.  I happen to have a COMP unit with .500/.510 lift, 218/224 (at .050) duration and for my purposes, it's a great street cam and still has a noticeable lump at idle.  I think Keith nailed it with the RPM range of your camshaft; it'll actually lessen your power below 3500 or so and make it a bit tough to live with.
 
 
 
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Don
Sent: Thursday, May 02, 2002 1:25 PM
To: [EMAIL PROTECTED]
Subject: Re: [Chevelle-List] Cam

 
I agree with Keith.
The most common mistake people make is to "over cam" or "over carburate".  Cams are designed to work within a specific rpm range for a specific purpose. In my opinion, for a stock street engine you shouldn't go much bigger than a stock cam. The factory did a pretty good job of matching general purpose cams, carbs, etc to these engines. A little bigger or more modern design is ok but as a general rule....like Keith said.... Bigger Is Not Better!
Don

What is important when ordering a camshaft is the other components in the engine. What other changes have you made to the engine and the block and heads.
 This is not a small camshaft. It is made for 9.5-11.00 compression ratio. RPM range will be about over 3000 to around 5500. This is a good mid range cam. If the other engine component and the rear ratio is not right, the cam will be slow on take off. When ordering a camshaft, BIGGER is not better. This is what some people call a Bracket Racing cam. You may need a stall converter. Before it is too late, Let me know your RPM at 60 (if you know). If the block has been bored  and to want. Your rear end ratio, Your rear tire size. If your running a stall converter. Your rocker arm ratio. Crank information. head information etc. What do you want to do with this car, city driving, racing etc. If you have a basically stock motor, this cam will be toooooo big. You will not like it.
Keith C. Cooper
----- Original Message -----
Sent: Thursday, May 02, 2002 8:21 AM
Subject: [Chevelle-List] Cam

     Just had the guy rebuilding my engine to order the cam for it.  I'm glad he always ask me if the part his is going to order is ok, but hell I know nothing about engines.  It's like asking me to read Chinese.  The one I picked for my Big Block is as follows:
 
Duration 050 IN        224
Duration 050 EX.      232
Lift IN                      527
Lift EX                     553
Lobe Center             114
 
Says:  Lopey idle, Wild Street/Strip
 
 
I'm looking for something that sounds good, but I don't want something that I can hear myself think when riding in the car.  Can anyone tell me what I just ordered.  Thanks
 
Craig

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