one of my friends told me he ran an SLP 51010 (224/232 .490/.510 112 LSA ) and told me to get one since im looking for a cam... i have three questions. 1] where can i find the slp cam, 2] do you think the Comp Cams "Extreme" Hydraulic Roller Camshaft (224 / 230 .502 / .510 112 LSA) would be better? and 3] how much lift is too much? thanks guys

 

Definitely the XE-CompCams will kick the SLP versions @$$...
It's in the ramp design, faster or steeper opening and closing ramp traps more area under the curve. Meaning another cam of identical dimensions will make less power...BUT valvesprings MUST be upgraded so the valve don't BOUNCE off their seats..and .510 lift is easily do-able and desireable..(After machining the valve seal "bosses" down just a little..so the retainers won't bottom out.)

 

do you think the lift would be too much if i put 1.6 rr's?

 

I run the SLP 51010 cam. Bought it from a board member who went with a cc306, new. Makes more power in the midrange than the stocker for sure, and the extra 2 degrees of duration should work better with stock heads since it can use the extra time on the exhaust side. With ported heads I would def. do to the XE grind. I'd imagine they put more time into the ramp designs than SLP.

I'm pretty happy with it though for what I payed. I'm gonna pull mine out soon though and replace it with a cc306 hat I have, also sitting in my garage.

One thing I like about this cam...with nothing more than exhaust and CAI, pull 28 mpg in my '94 Z...getting close to 400 miles per tank. Don't even have roller rockers or a larger TB yet, but I will soon...along with a 6AL and ported heads. Seriously considering leaving the cam in for the time being just to see how many MPG's I can squeeze out.

One thing, if you use either you'd need at least 2200 stall...has just a hint of cam surge below 1750. As far as lift you cannot use this cam without using at least LT4 springs...even with them, you can only use 1.5's. Go to comp 987's if you want to use 1.6 rockers. I changed to LT4 springs with the engine still in the car and the headers and intake off...using some soft-jawed bent longnose pliers to hold the stem of the valve while I used a valvespring compressor to swap 'em out. suprisingly easy to me.

 

Since I see you're rebuilding your heads, then you're safe with lifts higher than .460". That's the limit for stock heads. For rebuilt f-body heads, I think the limit is about .525-.540", but I am not sure. Do some more research, or maybe someone else will chime in here. Also, a cam that big will REQUIRE a custom chip, and I dont mean one you get off the internet. You'll want someone to be with your car using a scan tool to tune the chip that way. If you step down to a bit smaller cam, like under 220 degrees on the intake, you'll have less problems.

You can look at SLP's catalog online at their website, http://www.slpeng.com/

Lastly, you do NOT want 10.5:1 compression with iron heads. The thing will ping and detonate on premium pump gas, or you'll have to run such little timing you wont get any power out of it. Choose your pistons wisely so you end up with no more than 9.75:1 compression.

 

yeah, my heads are ported... when i get the flowsheet from my friend ill scan them and post them. the reason i want a cam is because my mechanic told me to get a new prom since i ported out my heads, but if im going to reburn my prom i might as well get a cam first. i was thinking of the XE verson of the SLP cam, with 1.6 RR. is it absolutely necessary to have a torque converter with that cam? and about the CR... i was told 10:5:1 would be ok with 93 octane.... thats why i went that far. guess it would have been better if i had aluminum heads huh? lol