Every diff I've seen broken, the pinion had a chunk gone in almost the
same spot. It leads me to believe there was some kind of metallurgy
flaw. I'm gun-shy now.
Jim
----- Original Message -----
From: "Robert M. Lang" <lang@isis.mit.edu>
To: "Timothy Holbrook" <tjh173@yahoo.com>
Cc: <6pack@autox.team.net>
Sent: Tuesday, June 18, 2002 3:06 PM
Subject: Re: Fwd: RE: Possible engine swap for Tr6
> On Tue, 18 Jun 2002, Timothy Holbrook wrote:
>
> > While engine swaps sound like fun sometimes (I love the idea of the
> > Honda S2000 engine in a Spit - 8500 rpm redline, 240hp, and Honda
> > reliability, in a car that weighs less than a ton and handles like
> > crazy!!), you definitely want to do some research before tackling a
job
> > this big. I would strongly recommend reading some Grassroots
> > Motorsports back-issues. They discuss this topic quite a bit, and
did
> > an extensive (and exPensive!) series on putting a Mazda rotary into
a
> > Spit. Great result, but tons of work, frustration, and MONEY. I
would
> > also recommend checking out Dan Master's newsletters and club
dedicated
> > to engine swaps in British cars. There's a website, but I forget
what
> > it is.... You can get around 170hp out of the Triumph 6 cylinder
> > without too much problem (head work, header, triple strombergs, cam,
> > roller rockers), for about $2,500. This may be a bargain when
compared
> > to an engine swap, and you'll have a fun TR6! But if you are
looking
> > for serious, reliable horespower (200+), my opinion is you'll need
an
> > engine swap.
>
> Actually, you can get around 200 reliable horsepower from a TR6, but
it
> will not be tractable and it'll cost a lot of money. To make it
reliable,
> you need Carillo rods, high compression and a cam. Forget about
> streetability.
>
> That having been said, if you can pull engine management into the
picture,
> you can tune the tractability issues, but I doubt that the motor can
be
> made very streetable.
>
> That having been said, I spent some time talking with a person from IL
> name Eric Quakinbush at Mid-Ohio... he's running PI and 10:1 on the
street
> with nor problems. I don't know what he's using for pistons, but
chances
> are with that setup that if any detonation occurs, things will go
downhill
> _real fast_.
>
> But I'll tell you what... the $2500 number is _way too low_. Make that
> number above $5k and then we're talking. $15k if you want the whole
> shooting match.
>
> BTW, the stock TR6 rear end seems to be okay for up to 200 HP. I've
not
> broken any gears in the race car (yey, knock wood), they were
"pre-broken"
> for me. :=)
>
> As for the engine swap thing, this is a pure personal thing. I would
not
> buy a TR6 with a V8 in it, for example, but as a tinkerer, the idea of
> making one fit has a certain amount of appeal. Just remember on any
> project like this - you'd better like the final product, because
you'll
> never sell it for what it'll cost you to do! If you don't beleive me,
drop
> Tim Suddard a line at GRM. They put a _ton_ of buck$ at the Ro-Spit.
>
> > Tim Holbrook
> > 1971 TR6
>
> C ya,
> rml
> ----------------------------------------------------------------------
--------
> Bob Lang Room N42-140Q | This space for rent
> Consultant MIT unix-vms-help |
> Voice:617-253-7438 FAX: 617-258-9535 |
> ----------------------------------------------------------------------
--------
|