73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Performance => Topic started by: ccz145a on June 19, 2008, 10:17:45 am
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Anyone have opinions or experiences about this thumpr cam from comp cams?
http://store.summitracing.com/partdetail.asp?part=CCA%2DK11%2D600%2D8&autoview=sku (http://store.summitracing.com/partdetail.asp?part=CCA%2DK11%2D600%2D8&autoview=sku)
specs from comp cams site:
http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=485&sb=2 (http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=485&sb=2)
Will it work well with a lwb fleet side ~5500lbs th400 3.42 rear?
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Generally speaking, those Thumper cams are pretty expensive for what benefit I'm not sure. Perhaps they are only roller cams. I think you can get the same everything for less, even within the CompCams catalogue. Look at their Xtreme Energy or XE4x4 lines to compare.
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comp cams had this audio: http://www.compcams.com/Base/MultiMedia/SoundBytes/Thumpr/Thumpr.wma (http://www.compcams.com/Base/MultiMedia/SoundBytes/Thumpr/Thumpr.wma)
I was looking for a roller since I still have an annoying valve train tap even after replacing liters and checking for bent push rods and adjusting.
I will definately try adjustment again before I buy anything. But if it turns out to be a rounded lobe, I will go with a roller.
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I would not run that cam!
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I think you can get the same everything for less, even within the CompCams catalogue.
I would not run that cam!
Yeah, I see your point after playing with comp cams's little desktop simulator/cam picker app.
There are better cam grinds, thanks for the input.
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from my experience, the thumpr cams are for sound only.
I tried a thumpr in my old s10 with a 355 in it..not impressed.