its already installed i ran it last summer, but im crossing over to TPI, just wanted to know if its worth keeping? Im also going to replace the excisting 1.5 rockers for some roller tipped 1.6

link:

http://store.summitracing.com/defaul...0&autoview=sku

specs:

Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-5,000 RPM
Intake Duration 050 inch Lift: 216
Exhaust Duration 050 inch Lift: 216
Duration at 050 inch Lift: 216 int./216 exh.
Advertised Intake Duration: 272
Advertised Exhaust Duration: 272
Advertised Duration: 272 int./272 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.454
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.454
Valve Lift with Factory Rocker Arm Ratio: 0.454 int./0.454 exh. lift
Lobe Separation (degrees): 110

 

LSA might be a little short for a TPI car, but otherwise looks fine.

 

im by far not a cam tech, how will this affect my power output?

 

"The hydraulic camshafts are ... for non-emissions controlled vehicles with tighter lobe separations and single patterns."

Not recommended.

 

Iroc, I see you're in Winnipeg (there are a number of Canucks on here), so emissions is NOT a problem.

However, you don't specify the model and year of your car. If your car is 1987 or new, then you need a Hydraulic Roller Cam, not a flat tappet cam. Also, MAF cars are more forgiving with modifications, so that cam would not necessarily require a new eprom.

In fact, I've been helping a buddy tune his 1989 Iroc with a 383 Miniram and seriously ported AFR 195s with 2.05 intakes (initially they were competition ported, and then sent back to AFR for more custom porting). My buddy runs a baby solid roller cam of 248/256 with a 110* LSA. I called him a wimp for not getting a 106* LSA.

Yes, I've had to do some eprom work to get his car to run, but it was more for "optimization" for maximum power. The car actually ran very well with the initial eprom I did for him when he was running a Crane Hydraulic Roller 222/230.

But we do need to have more info on your car and what your intended purpose is.

EDIT: I just noticed I had the wrong duration for the exhaust.

 

thanx for all the info.
a little info on my camaro, the motor is out of a 72 camaro Z28 350 small block 4 bolt main. im using the heads and intake from a 88 TPI IROC (it had an auto trans). tranny is a 5-speed using 3.73 rear gears. dont have to worry about emissions in canada so im not using a cat 3" exhaust with a resonator no muffler. headers im going to be using slp 1 3/4 with no air provissions. futur plans may include supercharger or nos, still would like to keep it naturally aspired so im not set on any power adders. Accel fuel management will take care of programming utilizing my laptop.

and being in winnipeg, its cold here right now...brrr. should be seeing summer soon.

 

Why spend all that money on the Accel system when you can just get the stock MAF system and harness for a heck of a lot less.

And, it is now possible for you to tune the eprom yourself. Go over to DIY-PROM Board and check it out.

 

I have the factory harness from front to back for the MAF system, I just figured it would really help fine tuning the engines performance with the accel system.

 

Smaller LSA means more midrange torque and rougher idle. You probably want to go with a dual pattern cam.