Thanks for the warm welcome. Although I currently have a billet crank =
in my car, I ran with a modified stock crank at the same power level and =
rpm (about 160 hp and 6800 rpm) for over 30,000 street miles and 30+ =
race events over 10 years without a failure. Fortunately, when a =
modified stock rod finally broke at sears point about 9 years ago, it =
only took out f1 piston, 1 liner ,and the block. The crank survived =
without damage and it is my current plan to actually put it back in my =
engine as I believe it will make a little more power because it is very =
completely streamlined and therefore will have less windage power loss. =
Its also lighter so should rev faster.=20
I am not an expert on heat treatment so leave that up to the guy who I =
have race prepare my cranks. I don't believe that a billet is necessary =
for any TR-4 engine at any power level as long as the revs are kept to a =
reasonable level, i.e.. under 7,200 rpm max. But that means that the =
stock crank must be properly prepared..Deep Case Nitriding for sure, =
properly done..shot peening seems to be a waste of time and money. The =
prepared crank that I used in my own car also had=20
the rear radius of the #4 rod journal, where they usually crack, welded =
up and remachined to a larger radius, then stress relieved.
The last billet I had made, which was for Richard Freshman, cost =
about $1600.00, and took about 8 months. The welding and nitriding =
procedure costs about $650.00 and should take about 1 month or so.=20
When Ed Berre purchased his car in 1989, I built a new engine for =
it which I think he ran for=20
two or three years without any problems. That engine dynoed at 163 at =
6,000 rpm. It had the same cam that you have. I also run that cam. =
That power was made with 45DCOE Webers and=20
a 12.5: 1 CR. In '94 we supplied an engine to Larry Nelson which was =
the first we had ever Dynoed both with Webers and then with 1 3/4 SU =
carbs. On that engine, the webers made about=20
174 hp and the SUs about 162. This head was prepared a little =
differently. These are all 2187 cc engines with standard size valves. =
There might have been a little more power to be had with the SU carbs if =
we had spent more time tuning, but I am certain that we could never =
have gotten back=20
up to the power level of the Webers. The power curves just began to =
diverge when the engine=20
came on the cam. The webers just flat out flow more air.=20
-----Original Message-----
From: Jeff Snook [SMTP:jsnook@wcnet.org]
Sent: Saturday, November 14, 1998 7:21 AM
To: SOLOW GREG
Cc: Friends of Triumph
Subject: Re: New Additions to FOT
Hi Greg,
Welcome to the list and thanks for all the parts you've supplied
to keep my TR3 on the track over the last couple years. Glen
Efinger does all the work on my car when it's in Florida and
we're building up a second engine right now which has your cam
and tappets ready to install. We are still waiting for a billet
crank! Any ideas on where to get one?
I love seeing the Morgans racing, although most of them beat me!
Unfortunately there are not too many racing any more. They are
getting as rare as TR3s! Dave Bondon was at Daytona last weekend
with his, but had a little mishap with a tire wall and did not
finish the weekend. I'm sure he will be back on the track again
next year. Another Morgan racer here in the midwest is Ed Berre,
but the last I saw him he was racing a beautifully restored Lotus
11 at Mid Ohio, so I don't know what he's doing with the Morgan.=20
Of course Harry Gaunt, the jeweler from Indianapolis, still
drives his wickedly fast Morgan, but didn't race too many times
this year. He's in his 60s and just got married this summer, so
maybe other things are occupying his spare time!!
I will send Glen a list of the parts and services you supply as
stated on your e-mail. I don't know whether he is aware of all
you have to offer.
Thanks again for you support and happy racing!
Jeff Snook
Battle of Britain Racing
Bowling Green, OH
SOLOW GREG wrote:
>=20
> Hi Amici! Its a privilege to be a part of the list. I have a 58 TR-3 =
street car with a 3/4 race engine,
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