577nitro

It been too many years (+40) since I have done much with American engines, so my questions might seem elementary,


Here is my build agenda;


1988 302 +30 bore, stock sized crank, ARP 165cc heads, roller rockers, quad 44IDA Weber downdrafts, HD built T-5 nominal ratios


So, I plan on a some times daily driver, will autocross and NASA track when races are close to me.


So what would you recommend for a cam that is not too lumpy, puts out moderate HP (these cars don't weigh much) nd can take 3800 to 6200 RPMs. Since Webers like LSA, I must be not less than 110 an not more than 114

Your inputs are VERY welcomed

.boB

With an individual runner intake system, you want a lot of LSA. At least 114*, and preferably 115-116*, depending on duration. Your goal is to keep pverlap to a minimum. Too much overlap is what creates the cloud of fuel over the carbs at slow speeds.

Other than that, choose lift and duration like you would for any application.

Comp Cams now owns Inglese. Under that name, they have a few cams specifically for the Webers.

Also, take a look at the Comp Cams stroker cams. Different specs, but still with wide LSA's.

Be careful with your static compression ratio. With minimal overlap, you'll build cylinder pressures pretty quickly. Calculate dynamic compression before buying parts, and keep it less than 8.

V8MiataMike

Comp Cams has a good tech line as well. You could call them and provide your details to see what they recommend. I've had success with them in the past.

tbone heller

Call the cam tech line. That is what they are there for.

577nitro

Yep, I knew bout the LSA issue, and Inglese only recommends that you stay within 110 and 114. I'll give /comp /cams call right now

577nitro

So with their advice, I ordered the CC Extreme energy #35-351-8...Sounds to me to be just right for the job

charchri4

What are the specs on that cam?

577nitro

Here are the detailed specs


35-351-8 - Xtreme Energy? Hydraulic Roller Camshafts, Computer compatible (E.F.I.) with O.E. hydraulic roller cams 1985-95

tbone heller

Be sure to use the correct gear on the distributor.

.boB

Good point. That's a stock 1982-2001 5.0 replacement hydraulic roller cam. Make sure the distributor gear matches those specs.

I'v made that mistake before. Not cheap, and not easy.

577nitro

yep I understand, and have never used the bronze one. this one will be steel