Can someone please tell me where i can get the colour (color?) tune
spark plug for tuning carbs. Also, where can i get one of the airflow
doohickies that measures the airflow into the carb.
thanks once again,
Lew 63 (getting exhaust today!) and 67 spits
Lew - I don't want to sound like a throwback to ancient times, but
have you tried to balance them by using your ears and listening? I
have tried the Unisync on my 64 Spitfire's twin SUs and was not
satisfied with the results.
Someone on the list a long time ago discussed the technique to balance
twin SUs with a length of rubber tubing (and the SU Rebuild book I
bought from Classic Autobooks describes it too). I ended up following
the list member's recommendations and was very surprised at how well
it works. You need a pretty sensitive ear, and a lot of patience, but
they were right on the money when I finished.
May I be so bold as to make a suggestion? Before you spend the money
on a Unisync or other flow measuring/balancing device, try the old
rubber tubing method first. Once you have the carbs as close as you
think you can get them, borrower someone's Unisync, stick it against
the carbs and see how far off you were. I would be willing to bet
that you can get them awfully damn close if not perfect without the
balancing devices. My $.02 worth.
Ross D. Vincenti
64 Spitfire 4
64 Porsche 356C Coupe