LS1 Grand-Am Cup Cam, 239/251
05-31-2004, 07:40 PM
#1
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LS1 Grand-Am Cup Cam, 239/251 Has anyone here used the LS1 Grand-Am Cup, 239/251 Duration @ 0.050, Racing Camshaft. What hp does this make with head work?
Has anyone used it without headwork?
Has anyone used it without headwork?
05-31-2004, 07:53 PM
#3
Originally Posted by GTS346
Has anyone here used the LS1 Grand-Am Cup, 239/251 Duration @ 0.050, Racing Camshaft. What hp does this make with head work?
Has anyone used it without headwork?
Has anyone used it without headwork?
I have it in a stock bottom end 346. SCCA/LPE/LS6 heads. It requires flycutting/notching the stock pistons.
42# GM-Bosch Injectors. Bought the Cam and Heads from SDPC. With an LSX 90 mm intake and Longtube headers. It put down 444 RWHP and 402 RWTQ through 4.10s. And many a "Tuner" told me it would NOT make decent power - when I bought the parts 18 months ago. Not bad for off the shelf parts and a low lift cam.
There are better, more powerful, cams available now - and they are easier to tune I believe. This one is open loop and was difficult to tune with fly-by-wire ( It would have been impossible for me to tune without NoGo's help
).
joel
05-31-2004, 07:59 PM
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My buddy has it on his WS-6, with stock heads...I think he put down 370ish to the rear wheels in an A4...It's not a very friendly street cam but then again what is friendly 
...I think that cam has a 106LSA...Since vacuum pressure isnt that high during low RPM he has to put the car in neutral, rev it up, then apply the brakes when he is commin to a stop 
...
Kevin
...I think that cam has a 106LSA...Since vacuum pressure isnt that high during low RPM he has to put the car in neutral, rev it up, then apply the brakes when he is commin to a stop ...Kevin
05-31-2004, 08:04 PM
#5
Originally Posted by Bink
239/251, 0.570", 106 lsa
I have it in a stock bottom end 346. SCCA/LPE/LS6 heads. It requires flycutting/notching the stock pistons.
42# GM-Bosch Injectors. Bought the Cam and Heads from SDPC. With an LSX 90 mm intake and Longtube headers. It put down 444 RWHP and 402 RWTQ through 4.10s. And many a "Tuner" told me it would NOT make decent power - when I bought the parts 18 months ago. Not bad for off the shelf parts and a low lift cam.
There are better, more powerful, cams available now - and they are easier to tune I believe. This one is open loop and was difficult to tune with fly-by-wire ( It would have been impossible for me to tune without NoGo's help ).
joel
I have it in a stock bottom end 346. SCCA/LPE/LS6 heads. It requires flycutting/notching the stock pistons.
42# GM-Bosch Injectors. Bought the Cam and Heads from SDPC. With an LSX 90 mm intake and Longtube headers. It put down 444 RWHP and 402 RWTQ through 4.10s. And many a "Tuner" told me it would NOT make decent power - when I bought the parts 18 months ago. Not bad for off the shelf parts and a low lift cam.
There are better, more powerful, cams available now - and they are easier to tune I believe. This one is open loop and was difficult to tune with fly-by-wire ( It would have been impossible for me to tune without NoGo's help
). joel
...oh well.
06-01-2004, 09:33 PM
#7
jrp - here's the sheet :
This is installed straight up - ICL @106.
I questioned the cross of HP/TQ not at 5252...they ( Phil at DynoTech Eng.) said it happens with the print out. I also checked with NoGo and he gave several reasons we could see this with Dynojet printouts. FWIW.
joel
This is installed straight up - ICL @106.
I questioned the cross of HP/TQ not at 5252...they ( Phil at DynoTech Eng.) said it happens with the print out. I also checked with NoGo and he gave several reasons we could see this with Dynojet printouts. FWIW.
joel Last edited by Bink; 06-01-2004 at 10:35 PM.
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