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Re: Red box (apc) - distributor how to tell ?
Posted by 900 Aero (# 425) (more from 900 Aero) on Thu, 21 Jun 2012 12:57:51
In Reply to: Re: Red box (apc) - distributor how to tell ?, Orhan, Wed, 20 Jun 2012 21:14:38
As RadioFlyer says 010 (0-237-507-010). The part number for the 010's vacuum capsule is 2973 rather than 2965, it's on the actuator arm so it's not visible unless the capsule is removed. They're really not all that much different but with the retard spring being a little stronger at least they were going in the right direction. Mine have a much stronger spring and I now add a .045" shim as compared to the the original SPG9 design. Once the retard curve is corrected what's needed just as much is re-advancing the timing accordingly as the rpm increases especially 4000 and above! I believe Bad (kcsaab) is working on something to do this besides his mechanical version which would be much less expensive! Brad's the one that got this whole boost retard thing going in the first place and helped us with our original A.I.D.'s!
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