With the Larry Young designed cam, power comes on much earlier, and shift
points much lower.
A well done crank as Greg and others describe improves the probability of
sustained life.
But something tells me that material and process quality at 'birth' will
impact the outcomes.
It appears, too, that even billet cranks are subject to failure......
Joe Alexander
A. R. E.
645 1st Street
Jesup, Iowa 50648
319.464.4711 (cell)
n197tr4@cs.com
-----Original Message-----
From: john hasty <jhhasty@gdhs.com>
To: tr4racing <tr4racing@googlemail.com>; fot <fot@autox.team.net>
Sent: Thu, May 3, 2012 12:18 pm
Subject: Re: [Fot] TR4 crank
Me too.....6000rpm
John H. Hasty
Attorney At Law
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-----Original Message-----
From: fot-bounces@autox.team.net [mailto:fot-bounces@autox.team.net] On
Behalf Of tr4racing@googlemail.com
Sent: Thursday, May 03, 2012 3:06 AM
To: fot@autox.team.net
Subject: Re: [Fot] TR4 crank
Hi,
I run a stock crank too. I use revs up to 6400 (rev limiter) but in most
cases I shift around 6200.
I got benefit of a light aluminium pulley on front and a 6 kg light flywheel
/ clutch unit. I found very tiny cracks at main 2 and 4 but we managed to
grind them away. The crank is in my current race engine.
I would say a stock crank is a good unit when to keep eyes on cracks and
stay below 6800.
Cheers Chris
Gesendet mit BlackBerry von Vodafone
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