Not necessarily. Over Drive Spares in the UK produces a competition spring
for the A-Type which will get you in the 450 lb. range. Unless you are
having slippage issues there is no need for more pressure! Pressure will
only provide hold power and does not effect the speed of operation to any
noticeable effect. Be extremely careful if using shims because if you
venture just a tad too far, which is not much you will block the relief port
and possibly break your overdrive unit!
Steve Yott
-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of riverside@southslope.net
Sent: Monday, November 12, 2012 10:32 AM
To: Randall; 'Friends'
Subject: Re: [Fot] J-tpe OD enhancements for racing
Will replacing the TR spring with an AH 3000 spring get more pressure
without the need for shims?
art de armond
-----Original Message-----
From: Randall
Sent: Friday, November 09, 2012 6:54 PM
To: 'Friends'
Subject: Re: [Fot] J-tpe OD enhancements for racing
> Care must be taken to not shim the spring too much as the spring will
> not allow the piston to clear the relief hole at the end of the
> travel. The result is disaster! Don't ask how I know.
You too, huh? Just to expand a bit, make sure there is enough travel before
coil bind to fully uncover the relief hole (or holes). The pressure was
fine on the bench ...
Randall
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