big cam question
Thread Starter
Former Vendor
Joined: Aug 2009
Posts: 1,184
Likes: 1
From: delware county pa
big cam question
hey all anyone try this cam ? currently i have a ls2 bottom end forged and ls3 top end. i really want a street 3/4 race cam. i dont care about driveablity. 248/254 - .615/.623 - 110 lsa
Le Mans Master
Joined: Aug 2005
Posts: 5,375
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From: CA.
St. Jude Donor '13-'14-'15
IF you have an A4 it will require much trial and error to get the driveability down--Things like idle-surging-flaring-hunting-dying will surface--Also with that big of a cam on an A4 a higher stall converter is practically a must --A stock converter won't hold at a stop light and it will take lots of brake effort to get it to stay put at the possible 850-900 required idle--On a 6 speed it won't be as bad--but be prepared in order to get the full benefit of the high duration your highest power will be up around 6500-6700 and your usable HP and TQ band will be moved higher as well--- Stock is around 2800-6000 and i would guess that cam's band will be more like 4000-6700----
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
To be honest, that's not a good cam for the LS3 heads at all. Find someone with experience specific to the LS3 heads and get the right cam.
Just my $.02
Just my $.02
Last edited by WKMCD; Apr 10, 2012 at 08:15 PM.
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St. Jude Donor '10-'11-'12
If you want the best cam for your setup you need a different cam.
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St. Jude Donor '12,'13,'15,'16,'17
I did put all the new injector specs in my tune.(HPTuners) I am having a idle hunting problem when I come to a stop. It drops to 600rpm and jumps up to 1400rpm a few time before it settles. Also I have bucking at light throttle between 1200-1800rpm's. I don't know if it was the right thing to do but I added first 10% to the RAF and it help a little so I added another 10%. Seems I when I come to a stop if I put it in neutral and let the clutch out the idle settles right down to 950. Any Ideas?
Thank for any help!
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Thread Starter
Former Vendor
Joined: Aug 2009
Posts: 1,184
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From: delware county pa
im planning on doing the whole 102 setup and porting will follow of course. i want a cam that makes good solid power and i dont care about driving issue i like the radical stuff
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St. Jude Donor '12,'13,'15,'16,'17
