AI 243 heads with stock cam
06-03-2012, 11:36 AM
#21
Awesome! I'm suprised it picked up that much, especially wihout messing with the WOT tune that much. Those heads must really flow at low lift. Without a lot of dyno magic, you won't find a bolt on only stalled auto putting out this much. Period. Great numbers man.
I'm very happy with the heads considering the cam stopped making power at 5800 rpm
Just curious, why did you do the heads first and not cam? Thanks for the post, I've been looking for something like this for a while.
I'm very happy with the heads considering the cam stopped making power at 5800 rpm
Just curious, why did you do the heads first and not cam? Thanks for the post, I've been looking for something like this for a while.
06-03-2012, 11:39 AM
#22
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Awesome! I'm suprised it picked up that much, especially wihout messing with the WOT tune that much. Those heads must really flow at low lift. Without a lot of dyno magic, you won't find a bolt on only stalled auto putting out this much. Period. Great numbers man.
Just curious, why did you do the heads first and not cam? Thanks for the post, I've been looking for something like this for a while.
Just curious, why did you do the heads first and not cam? Thanks for the post, I've been looking for something like this for a while.
06-03-2012, 06:53 PM
#23
Nice to see the car is up and running! Should be ~10.6-10.7:1 w/ a 64cc head, though the exact # may vary a bit w/ gasket bore diameter & actual compressed thickness. The 226cc CNC work tends to gain ~40-45rwhp over an as-cast 243, but some converters obviously make racing the drum futile. I'm sure it'll run well before & after Geoff's cam. A 232/240 at that relative level of aggressiveness would likely manage 450-470rwhp in a stick car w/ the 226cc CNC work. Good luck with it!
-Phil
-Phil
11-24-2012, 03:17 PM
#26
OK so I put Geoffs 230 / 238 cam in and picked up 61RWHP with no other changes to the car. The only other thing that was changed is the 373 gears in the car and it went from 112mph to 120mph with the cam. the car made 414RWHP @ 5700 and at 6800 it still made 409RWHP.
11-25-2012, 07:27 AM
#30
Why didn't you go with a AI cam thats optimized for the CNC'd heads?
