[Fot] TR4 Lemons race car project restarting

Charly charly at mitchelplumbing.com
Sun Jan 8 07:55:21 MST 2017


Andy, the timing gear should be interchangeable from the TR6 and GT6. 
Charly Mitchel 
TR6 #44 

On Sun 08/01/17  5:08 AM , Jason Sukey via Fot fot at autox.team.net sent:
> Hi Andy, I ran a TR gearbox in my GT6 street car for quite a few
> years.  The gear ratios aren't as sweet as the GT6 box, but
> it's a nice stout piece.  The TR6 rear plate is what you need. 
> I'd stick with the GT6 flywheel though, it's lighter than the
> TR flywheel.  They use the same pressure plate, so no worries, just
> use a TR6 clutch disc.  You will need to make a custom pilot
> bushing. 
> Jason Sukey
> 
> On Jan 8, 2017 12:18 AM, "Andrew Packard via Fot"  wrote:
> Hello from Bay Area:
> 
> We have finally restarted our TR4 24 hours of Lemons race car
> project.  Initially we were going to use a rotary drive train from an
> RX7, but have since abandoned that and returned to a Triumph drive
> train.  Thanks to Jeff Durant, we now have a GT6+ engine.  We have a
> 4 speed TR6 tranny to start, but after a test fitting on the GT6+
> engine it's a close but not quite a fit.  The main concern is
> that the starter mounting area does not match up.
> What are the options for this combo?  Do we need to use TR6 flywheel
> and rear engine plate to make this pairing work?  Have other used
> this?  What alterations/combos are required to make this work?
> Second question:
> I do not see two row timing chain and sprockets for sale for the
> GT6+.  Are the TR250/TR6 components compatible?
> Thanks for the support of the group as we work through our issues to
> get a 100% Triumph powered TR4 on the track!
> Andy Packard
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