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Re: [Fot] GT6 carburetors

To: Scott Janzen <sjanzen@me.com>
Subject: Re: [Fot] GT6 carburetors
From: Jason Ostrowski via Fot <fot@autox.team.net>
Date: Wed, 9 Apr 2025 21:34:58 -0500
Cc: DENNIS DELAP via Fot <fot@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: fot@autox.team.net
SVRA actually did a pretty good job with their current classification of the 
GT6. The choices they make in the classification compared to  other cars (in 
the same class) favor the GT6. 
Why? Because SVRA references the 1967 SCCA regulations for class approval for 
group 3. 

Original SCCA classification had the GT6 in E production where it was 
particularly dominate. Not many cars were prepared for National SCCA 
competition in the first few years of the new 6 cylinder beast. (Like less than 
10 quality SCCA cars  until the 1969 season).
At the end of 1969 and after a banner year of regional and national wins, the 
car was reclassified after the ARRC at Daytona. 
So for the start of the 1970 season- and ever after,  the GT6 was in D 
production. 

With the most general sense of reason, and for the sake of a true and accurate 
Base for â??Period Correct classificationâ??â?¦.  
the Triumph GT6 is a D production car and it should run prepared to at or about 
the 1972 SCCA rules as such. 
Most importantly; with a stock appearing manifold with no more than 2 throats. 
Stromberg or S.U. 1.5 â?? to 1.75â?? 
To Jason Sukeyâ??s point outâ?¦ no penalty for an enlarged size of a dual carb 
set-up. (Iâ??m all in on that footnote)

As far as a triple Webber set-up; with a custom manifold. 
That is a totally different scenario and  was never on these cars in the in the 
first decades of competition. (Nice try, but Sorry Scott your GT6 didnâ??t have 
those Webers on it when it was campaigning for the SCCA DP national 
championship).
The only exception would be the Dolanâ??s group 44 car which actually ran in 
GTU under IMSA rules at the hand of the Great Ted Schumacher!
And, with every trick thrown at it; Itâ??s simply a bump in class. 
Intake Manifold modification, and or extra carbs. = C Production
Lots of other mods = C production
IMSA GTU type GT6= C prod.
A modern E production SCCA well built car  like Anthony Parkerâ??s = C 
production.
For the record, I donâ??t care what type of GT6 you build or race.
I love them all. 
But if we are to be fair to the original cars, certain modifications should be 
evaluated. 
I see 2 types of GT6 race cars that  Iâ??d like to campaign .
1) almost period correct = DP
2) unlimited =CP.
Any type of GT6 is eligible to win the Kastner cup.
 But All GT6 entries are eligible for a public stoning if they are found to be 
slow.

Jason Ostrowski 
Friendly Ghost Racing 
1969 Triumph GT6+ racecars





Sent from my iPhone

> On Apr 9, 2025, at 5:41 PM, Scott Janzen <sjanzen@me.com> wrote:
> 
> That may be true- the penalty bit, but Iâ??ve been running triple Weber 
> 40s in Vintage for years. Even with that, a well prepared Tr4 is at least a 
> match for my car. I run the Webers because once theyâ??re set up theyâ??re 
> bulletproof, and I have to admit, I love the way they look.
> Iâ??m not sure from a performance standpoint they offer a huge edge.
> 
> Sent from my iPhone
> 
>> On Apr 9, 2025, at 6:24â?¯PM, Jason Ostrowski via Fot <fot@autox.team.net> 
>> wrote:
>> 
>> No.
>> The GT6 always was sold with the 1.50 strombergs.
>> The Only difference in GT6 carbs relates to style for various emission 
>> requirements.
>> And contrary to popular belief the 1:5â?? set of carbs (for all GT6 
>> racecars) are the only style allowed in both Modern and Vintage rules 
>> without some kind of corresponding class change or weight penalty.
>> Jason Ostrowski
>> Friendly Ghost Racing
>> 1969 GT6+  racecars
>> Sent from my iPhone
>> 
>>>> On Apr 9, 2025, at 1:55 PM, DENNIS DELAP via Fot <fot@autox.team.net> 
>>>> wrote:
>>> 
>>> A M I C I
>>> Iâ??ve got a question for the GT6 folks in the group. Was the larger 1 
>>> 3/4â?? carburetor fitted to the GT6 towards the end of its run?
>>> Thanks
>>> Dennis
>>> Sent from my iPhone
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