ATI cog setup came in
#13
#15
How hard are you spinning your 5.4:1 geared F1R with an 8rib? I will be just short of the 68,000 rmp max. What problems did you have with your cog setup?
Last edited by MFIC; Nov 18, 2008 at 07:58 PM.
#16
I got the 8 rib right now and run a 7.5 crank 4.5 supercharger pulley and get no slip at all. I run it up to 6000 rpms and have to stop because of fuel issues. I want the cog system though.
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