Mutha Thumpr cam?
http://www.youtube.com/watch?v=NeQ0jk-7Uzc
I wasn't impressed by the performance of the thumpr cams in the SBC's... You really need to have a cam spec'ed to your type of driving, but that cam does sound nice with 24 degrees of overlap...
I wasn't impressed by the performance of the thumpr cams in the SBC's... You really need to have a cam spec'ed to your type of driving, but that cam does sound nice with 24 degrees of overlap...
It was the 227/241 version, ***** Thumpr. Ill try to find the mag, or the article online.
Edit: I found it, it is for sure the 227/241 Thumpr..
Our first shot was a simple baseline of the stock 5.3 with the carb and headers, making a credible 337 hp and 351 lb-ft of torque.... Just bolting in this new Thumpr cam (it didn't even have a part number) pushed the peak horsepower from 5,600 to a nose-bleeding 6,800 rpm..... the peak power jumped from 337 to 433 with stock heads. That's a 96hp bump with a cam swap! (Entire article) http://www.carcraft.com/techarticles/ccrp_0804_325_chevy_small_block_engine/gm_performance_parts_intake_manifold.html
Edit: I found it, it is for sure the 227/241 Thumpr..
Originally Posted by Car Craft
Our first shot was a simple baseline of the stock 5.3 with the carb and headers, making a credible 337 hp and 351 lb-ft of torque.... Just bolting in this new Thumpr cam (it didn't even have a part number) pushed the peak horsepower from 5,600 to a nose-bleeding 6,800 rpm..... the peak power jumped from 337 to 433 with stock heads. That's a 96hp bump with a cam swap!
Last edited by SweetS10V8; May 2, 2009 at 06:26 PM.
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Actually its far from a track cam, the whole comp thumper series cams are all show and no go. They designed these cams for the guy who only wants the sound of a choppy idle cam but still has good driveability. From a performance stand point theyre not that good.
Exactly...all bark and no bite.
Well there is alot more out there that can offer you more. Ive talked to comp cams reps direct and theyve all said the same thing theyre designed to give you the lope of a big cam and thats it. From a performance stand point theyre not that great.
