Can any of the folks racing Spits help Ian with his question?
Ian is a GT6 and Spit pilot in Oz
Begin forwarded message:
> From: "Ian Cowie" <ian@acohs.com.au>
> Date: Sat Jan 3, 2004 6:04:58 PM US/Pacific
> To: <twakeman@cruzers.com>
> Subject: Spitfire diff
>
> Hi, just reading some Met nuggets. I own (and race) a Spitty MkIII
> and a GT6. Both give at leas t100hp per 1000cc. So go quite well. The
> Spitty is a problem cos we have heaps of torque (engine dynoed) well
> over 100ft/lbs. This means things break! Flanges, UJ, Yokes, you name
> it. Last meeting I ran Wakefiled park (NSW) got to about 40+ laps, and
> chaging gears 2nd to 3rd at the same point of a corner eventually
> broke! Sheered three bolts on the crown wheel and put 3rd gear through
> the side of the Al cased gearbox.
>
> Have installed a TR7 4 speed (as opposed to the 4+3OD straight cut CR
> I was using) couples to a TR7 crown wheel and pinon with one of my
> Detroit Lockers. Everything gone togetjer nicely but want to check
> with you wheter you know what the pinon height should be. I know
> triumph says use tool X to set this height. But usually the toll is
> nothing more than a disc (just gotta know how big its gotta be!)
> against which u set the pinon height.
>
> Your help appreciated
>
> Ian Cowie
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