427 ci cam recommendations
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Joined: Aug 2001
Posts: 724
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From: West Palm Beach FL
427 ci cam recommendations
427ci
11.2:1 compression
ET performance heads 250cc intake runner flowing 335-347 at .500-.700
FAST 90mm ls2 90mm TB
1 7/8 kooks headers, no emmisions
48 lb injectors
AUTOMATIC transmission, 3:90 gears, 3600 stall.
What cam would you guys recommend? Please post from someone who actually has the setup with cam allready.......also please post HP / TQ data..
Thanks
Tom
11.2:1 compression
ET performance heads 250cc intake runner flowing 335-347 at .500-.700
FAST 90mm ls2 90mm TB
1 7/8 kooks headers, no emmisions
48 lb injectors
AUTOMATIC transmission, 3:90 gears, 3600 stall.
What cam would you guys recommend? Please post from someone who actually has the setup with cam allready.......also please post HP / TQ data..
Thanks
Tom
Team Owner
Joined: Apr 2001
Posts: 26,794
Likes: 614
From: Elmhurst, IL (West Suburb of Chicago) & Home of MEGA Horsepower
St. Jude Donor '06
I just sold my 427 C5R ROadster A4 that i owned for several years with almost an identical set up as your running. You have a killer car there my friend and enjoy!!!!!!!! 
I ran and was very happy with MTIs somewhat aggressive street/strip battled tested S1 cam with specs of 244/244, .612 lift on a 112 lsa. The car was a BEAST and had a nice shake to it on the street but was still very streetable with my 4000 Yank Stall converter and 3.73 gears!!!!!!!!! As many guys are running cams at least this big on stock cubed motors I would not recommend running anything smaller than this as the big cubes and your stall will absorb this cam no problem (even through your A4 tranny). I feel the S1 cam i ran as stated above was perfect for street use and occasional track use as it made great power and was still bery streetable (will not die on the street with proper tuning, etc.) If you want something more radical I would call some of the big named tuners and tell them what your objectives and usage for the ar will be and that engine could easily handle a cam with specs in the range of 248/252 on a .6+ lift ona 112 lsa!!! 
I ran and was very happy with MTIs somewhat aggressive street/strip battled tested S1 cam with specs of 244/244, .612 lift on a 112 lsa. The car was a BEAST and had a nice shake to it on the street but was still very streetable with my 4000 Yank Stall converter and 3.73 gears!!!!!!!!! As many guys are running cams at least this big on stock cubed motors I would not recommend running anything smaller than this as the big cubes and your stall will absorb this cam no problem (even through your A4 tranny). I feel the S1 cam i ran as stated above was perfect for street use and occasional track use as it made great power and was still bery streetable (will not die on the street with proper tuning, etc.) If you want something more radical I would call some of the big named tuners and tell them what your objectives and usage for the ar will be and that engine could easily handle a cam with specs in the range of 248/252 on a .6+ lift ona 112 lsa!!!
