If you have the early TR4 Z-S carbs and look at them they sit real tall in the
area between the throat and the top of the suction chamber. They also have a
funny choke on them, a flap that rises up in front of the bridge and raises
the piston a little and also blocks the airflow at the same time. If held
next to a TR6 Z-S, the look about 25% larger, even though they are 1 3/4". I
believe they we used on the very early TR4's and were switched to SU's later.
The floats can be hard if not impossible to find.
----- Original Message -----
To: firstname.lastname@example.org ; KLynch7589@aol.com ; email@example.com ;
Sent: Thursday, December 22, 2005 7:17 AM
Subject: Re: Swapping out Strombergs for SUs
I think the early TR4/TR4A Z-S would be a candidate for conversion on the
TR6. I like their simplicity.
What is a Tall Chamber Z-S, Charly?
Thanks. Joe (A)
I ran Z-S last year for about half the races and I can only say I had
of low end torque, but no top end. I could hardly pull 6000 rpms.
I was told the early Z-S off the TR4 work the best. A fellow who has
flowed all the British carbs told me he had the best results with the
chambered Z-S. I was tempted to try them on my car and never did. I have
set if someone is interested in them.
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