Skinny
Member
I posted before that I am considering a budget heads and cam swap on my 85 c4. A stroker or LS would be cool. But excess money is not one of my attributes. When I say budget build, I mean budget build.
Anyhow, I have been watching out for some used 180cc heads on Ebay (barely missed a set of AFR heads, outbid with 10 seconds left) to match up with a Crane 114132 and cheapo headers. I saw some threads online about Iron Eagles. I have an iron headed car and wouldn't mind these despite the 40 pound weight difference vs aluminum.
Any of you gearheads ever pair up the afore mentioned cam with 180cc heads? I didn't find anything via the Search tab.
Here's why I am posting this here. I punched in the cam and head info in Desktop Dyno (I forgot I had this on CD until recently...hadn't used it in years). The results interesting and I am wondering if the program is too generous to a TPI car. Entering stock parameters, I got 234 horsepower. Sounds about right. Adding the heads and cam based upon the advertised numbers, the car was about 350 horsepower with small headers and mufflers. Dang near 385 if I used a 650 carb and dual plane manifold. I am including an image of each graph. Of course Desktop Dyno estimates crank horsepower...
Have you found Dyno2000 to be accurate with small block Chevy, esp with tuned port injection? If so, this would make a worthwhile winter project for me, perhaps with a 75 shot for good measure.
Anyhow, I have been watching out for some used 180cc heads on Ebay (barely missed a set of AFR heads, outbid with 10 seconds left) to match up with a Crane 114132 and cheapo headers. I saw some threads online about Iron Eagles. I have an iron headed car and wouldn't mind these despite the 40 pound weight difference vs aluminum.
Any of you gearheads ever pair up the afore mentioned cam with 180cc heads? I didn't find anything via the Search tab.
Here's why I am posting this here. I punched in the cam and head info in Desktop Dyno (I forgot I had this on CD until recently...hadn't used it in years). The results interesting and I am wondering if the program is too generous to a TPI car. Entering stock parameters, I got 234 horsepower. Sounds about right. Adding the heads and cam based upon the advertised numbers, the car was about 350 horsepower with small headers and mufflers. Dang near 385 if I used a 650 carb and dual plane manifold. I am including an image of each graph. Of course Desktop Dyno estimates crank horsepower...
Have you found Dyno2000 to be accurate with small block Chevy, esp with tuned port injection? If so, this would make a worthwhile winter project for me, perhaps with a 75 shot for good measure.