I have the thumpr cam. I like it despite all the bad people talk about it. I have a 3000-3200 stall prolly should have gone a little higher from what my brother says. When I drove it last it had factory TC. It pulls to about 7200 and breaks both tires loose at 45 + Chris@lsxps did a great job of tuning it. pulled an extra 20 hp and like 30 tq more than the tune from speedtek. And it loves the 4.10s
Last edited by Black'N'Yellow4.8; 02-14-2012 at 03:27 PM. Reason: spelling
'02 GMC RCStepSide 4.8 , Thumpr Cam , 3200 Stall , OBX LTs , MSD Wires , TrueTrac , 4.10s , 3/5 Drop , bolt in traction bars by LSX Powersports , EFI Live tune by LSX Powersports
15.2 @ 90 , 2.3 60' (Only mods at this time , LTs)
I would say 4.30 or 4.56 gear
2002 ECSB 2WD 5.3
1995 Formula Firebird 383 LT1
1984 Camaro 408 SBC
Most sports require one ball, motocross requires two.
Racing isn't a matter of life and death, it's much more important than that.
'02 GMC RCStepSide 4.8 , Thumpr Cam , 3200 Stall , OBX LTs , MSD Wires , TrueTrac , 4.10s , 3/5 Drop , bolt in traction bars by LSX Powersports , EFI Live tune by LSX Powersports
15.2 @ 90 , 2.3 60' (Only mods at this time , LTs)
Sounds like a good setup. When I was building my engine I was trying to decide on the cam. Wanted a nice chop but nothing extreme. So I went with the 112lsa. After hearing all the 109 and 110lsa cams now I want one! Plan on swapping the 243 heads back on so maybe while I'm doing that I'll change the cam.
2000 Chevy Silverado RCSB LS6 5 speed, LS6 short block, 317 heads, LS6 intake, Lunati 220/224 .575/.575 112LSA cam, Edelbrock Headers, CTS-V accessory drive, Nelson Performance Custom Tune.