Jim - you are very correct on the tr250, but if you don't mind allow me to
expand on the tr6.
rumor has it that some of the delay was "translating" the car into SAE
because Karmann did the whole car in metric.
the TR5 PI engine was continued in the tr6 for everywhere except north
america, where we got the carb'd version as in the TR250. the cam and
horsepower are also different, the PI doing substantially better, supposedly
around 150 hp whereas the carb'd vers was more like 105.
the pollution equipment, the head, the exhaust and manifolds, and then even
the carbs changed over time for the worse as BL didn't know how to work
within the ever more stringent pollution standards except by strangling the
car more and more. this was also true for the spitfire, mgb, midget, etc.
also there are the issues of ride height and the rubber bumpers, a somewhat
different but related issue.
many tr6 owners feel the 71/72 years are the best due the the dual exhaust,
best head and compression, and previous to most smog "improvements."
----- Original Message -----
From: <jimmuller@rcn.com>
To: <Triumphs@autox.team.net>
Sent: Thursday, April 09, 2009 11:56 AM
Subject: Re: [TR] [6pack] Karmann declares bankruptcy
> Wayne queried:
>> The TR5 in Europe was the TR6 with the PI (petrol
>> injection) system. I don't know of any Fuel Injected
>> 4A's produced for Europe.
>
> Ummm, I've never been a TR owner except for a brief experience with a
> defunct TR6, but I believe you have something backwards. As I understand
> it, the 2.5liter 6-cyl engine was ready and needed before the TR6 body was
> ready. As a stopgap Triumph installed that engine into the TR4A. The
> European cars got PI, but North American cars got twin carbs because
> Triumph were afraid that American drivers would be scared by the lower
> fuel mileage and that American mechanics wouldn't know how to deal with
> the PI. The European version was named TR5. To distinguish between the
> PI version and the twin-carb version the N.Am. cars were named TR250. The
> body style of both was essentially that of TR4A, with the N.Am. versions
> (at least) generally getting a distinctive stripe running across the nose.
> Don't know how universal that was. The TR5/250 was produced only for the
> nominal model year 1968. The TR6 was introduced in 1969, and with the
> possible exception of emissions control and tr
> i!
> m, bumpers, etc. it was the same everywhere.
> --
> Jim Muller
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