I don't think the stock rod journals, rods, and pistons (especially if
you are talking turbo) can handle the stress at 200 HP. Maybe I'm wrong,
though.
My project costs are (approximately) Engine, 5-speed T-5 tranny ,
computers and wiring harness.. $275. Narrowed posi diff, drilled for TR6
wheels, with disk brakes... $350 (includes purchase price). Driveshaft,
motor mounts, solid axle conversion... $300. Exhaust, gages.... $150.
Fuel cell and other conversion bits.... $300.
Yes, not every one can do it, but it'll work for me! Cheap reliable 200
HP. (With a Ford 2.3 turbo motor) Plus, I can do hole-shots to my hearts
content!
Jim
----- Original Message -----
From: "Timothy Holbrook" <tjh173@yahoo.com>
To: <6pack@autox.team.net>
Sent: Tuesday, June 18, 2002 6:20 PM
Subject: Fwd: Re: Fwd: RE: Possible engine swap for Tr6
> My mistake, I meant to say "reliable, streetable 200 hp". Good point,
> you can get 200hp out of a 6 no problem, but I don't think it would be
> too good on the street. Well, maybe it could be done with forced
> induction, electronic fuel injection, and crank-triggered ignition.
> But then you are talking serious bucks!
>
> However, I don't think I'm way off on my $2,000 estimate for 170 hp.
>
> Head work: $900
> Header and exhaust: $300
> Triple carbs: $400
> 1.65 Roller rockers: $500
> Cam: $160
>
> Dynoed by Goodparts at 170 crank horsepower. That's $2260 for the
> go-fast parts. All of this can be easily installed by the DIY-er, so
> labor costs aren't an issue.
>
> Maybe we can make a commercial out of this....
>
> "Head work, $900. Roller rockers, $500. Finally blowing that
infernal
> Miata away on the drive to work, priceless."
>
>
> Tim Holbrook
> 1971 TR6
>
>
> --- "Robert M. Lang" <lang@isis.mit.edu> wrote:
> > Date: Tue, 18 Jun 2002 15:06:58 -0400 (EDT)
> > From: "Robert M. Lang" <lang@isis.mit.edu>
> > To: Timothy Holbrook <tjh173@yahoo.com>
> > CC: 6pack@autox.team.net
> > 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 |
> >
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