Cam advice - Team Camaro Tech
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post #1 of 10 (permalink) Old Sep 27th, 04, 03:49 AM Thread Starter
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Bill
 
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Location: Houston
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I was hoping to get a few ideas on cams based on experience.
I have a .040 350 w TRW forged, 2 bolt, stock 5.7 inch rods and stock cast crank. I'm not looking for a drag racing profile but I do want to make power. I'm on a budget so I need a cam that will work with 2 different sets of heads.
1st set are 882 castings with 1.94/1.50 with no work done that I got for very cheap with low miles. These will be the heads I start with till the second set is complete.
2nd set are Dart 2 sportsman with 200cc intake runners, 2.02/1.60 with pocket porting done. These are awaiting $ and time in the same day.
Any advice on a cam profile that will work on the 1st set and rock on the second would be appreciated.

Thanks, Bill

1969 Camaro X44 *under contruction
350/4 speed
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post #2 of 10 (permalink) Old Sep 27th, 04, 08:11 AM
 
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Imho, you can't go wrong with no more then a CC 268HE or a Crane 272/272 Energizer if you are just after a strong street motor!!

Knowing no more about this then what you mentioned is all.......

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post #3 of 10 (permalink) Old Sep 27th, 04, 10:10 AM
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Eric
 
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What is your compression ratio? If you don't know what kind of piston are you running, dish, flat top or domed?

Also, what rear end gear ratio and what stall speed and transmission type are you running?

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #4 of 10 (permalink) Old Sep 27th, 04, 11:48 AM Thread Starter
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Bill
 
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Eric, I will start off with aproxx 9:1 with 76cc heads and flat tops with 4 valve reliefs.
Then go to 64cc heads for approx 10.25:1.
Saginaw 4 speed and hiway gears (2.51 I think) for now. 3:73 posi incomming soon.

PDQ, this motor had a 272 adv. with .455 lift before the rebuild. It was mild but decent.

1969 Camaro X44 *under contruction
350/4 speed
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post #5 of 10 (permalink) Old Sep 27th, 04, 05:11 PM
 
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Well, glad to hear I picked it right..

I'd leave it in there AND try it later too.

Then come back for a cam pick to help make more power later..

A big cam with poor/smaller heads sucks but a small cam and good heads will rock!! Up to a point..

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post #6 of 10 (permalink) Old Sep 27th, 04, 08:31 PM Thread Starter
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Bill
 
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thanks guys

1969 Camaro X44 *under contruction
350/4 speed
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post #7 of 10 (permalink) Old Sep 28th, 04, 02:30 PM
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Eric
 
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Flat tops in a 355 should make just over 10:1 like you said. Freeway gears, 9:1 compression, and 76cc heads is a whole different animal than 3.73s and 64cc aluminum heads and each would require its own cam selection.

With the 64cc aluminum heads and the 3.73 gear I'd look at a cam with a hair more duration, like the Comp XE268 or similar -- 268/280* advertised, 224/230 duration @ .050, .477/.480" lift, 110* LSA, 106* ICL.

With the 9:1 compression and freeway gears even the cam PDQ suggested might be a little on the big side . . . something about 15-20* shorter than the XE268 I mentioned above would be a good starting spot. (that's about 250* advertised duration and about 210* @ .050)

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #8 of 10 (permalink) Old Sep 28th, 04, 03:48 PM
 
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Basically Eric and I are in agreement here..

But I do have to say, I'm an old style cam guy b/c I just like the overall reliability of the CC HE and Magnum and Crane/Cam Dynamics Energizer type older cams vs the newer Extreme type cams is all..

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post #9 of 10 (permalink) Old Sep 28th, 04, 05:50 PM
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Eric
 
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Yeah, there's nothing at all wrong with the old Magnum style cams -- I think it was PDQ that recommended the good old Comp Magnum 282s that I ran in my 383 for a while and managed to dip into the 11s with it . . . then I tried the Magnum 294s and got it down into the 11.4's -- so them single pattern cams WILL run . . .

E85 racer and E85 carb builder

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68 Camaro, E85 powered 427" small block. 9.96 @ 133 MPH, 1.319 sixty foot on motor. 5.92 eighth @ 116 with a 1.42 sixty breaking beams with back tire on the bottle
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post #10 of 10 (permalink) Old Sep 29th, 04, 09:22 AM Thread Starter
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Bill
 
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I agree with you guys as well. I ended up buying a Crane 272/272 .454/.454 for the initial setup and I will change the cam when I get new gears and the heads are complete. Thanks for all your advice.

1969 Camaro X44 *under contruction
350/4 speed
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