I saw a 'factory prepared, unrestored' 69 GT6+ racer at Chateau Elan a few
months back and it had the ZS-175's on it. Chromed dashpot covers, even.
Didn't get much chance to talk to the owner, but the car looked (and
*sounded*) great! Just FYI.
Scott Decker
70 GT6+ KC79034L
> -----Original Message-----
> From: owner-triumphs@autox.team.net
> [mailto:owner-triumphs@autox.team.net]On Behalf Of M. Secrest
> Sent: Monday, November 16, 1998 7:07 PM
> To: Scott Swanberg
> Cc: triumphs@autox.team.net
> Subject: Re: Subject: Z-S 175's in a GT6
>
>
>
> Scott Swanberg wrote:
> >
> > Martin,
> > Ditto, I've often wondered the same thing. All I can guess is that the
> > 175's were more of an export item and because of their pollution stuff,
> > not as tunable as the SU's. The Triumphtune cataloge kind of makes
> > reference to this when it addresses putting SU's on repatrioted export
> > cars. I would think that if you could find some straight 175 CD's with
> > the idle adjusting screw on the bottom that it would work just as well.
> > I've been keeping an eye open for such. Are there such 175 Strombergs
> > around?
> >
> > One more thing on this thread, do you know if any intake manifold work
> > is required with this type of set up? I would think that a manifold
> > sized for 150's would be restrictive for the 175's unless it was opened
> > up a little. Or are the carbs the main controlling factor in the intake
> > system?
>
> Good question. I infer from the fact that Triumphtune makes an
> adaptor -- which attaches to the stock manifold to allow fitting
> HS6 SU's -- that the manifold isn't the critical bore, but the
> one in the carb is. But certainly there are LOTS of 175's sitting
> around, from all those trashed TR6's. I've seen 'em. I think it
> would be a neat upgrade to a tuned GT6 engine, partly because at
> first glance, you might not even notice that 175's were installed.
>
> But I don't want to tilt at windmills. The carbs are the last
> item in my performance upgrade list for the GT6, and when I get to them,
> I'll probably fit HS6's. I like SU's -- wonderfully simple. I had HS4's
> on my Spitfire. Occasionally, you do see TR6 owners
> who have installed large SU's, and some swear by them.
> --
> Martin Secrest
> 73 GT6
> 72 TR6
>
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