stromberg jetting suggestions

A

arkusvt

Member
preparing an engine to go in my '32 roadster; 284, L-100, vintage tall tattersfield with a pair of newly rebuilt '97s from uncle max.8-1/2 cr. where would a good starting point be. just want to go down the road, not bonneville. thanks for your ideas!
 
JWL found best jets for 2 Strombergs on the dyno with stock 239 were .046.
Many reccomend smaller. I have a 276 and found you really have to watch for detonation. His book is helpful and discusses jetting in detail.

John
 
arkusvt said:
preparing an engine to go in my '32 roadster; 284, l-100, vintage tall tattersfield with a pair of newly rebuilt '97s from uncle max.8-1/2 cr. Where would a good starting point be. Just want to go down the road, not bonneville. Thanks for your ideas!
Click to expand...

.048
 
Hmmm...my '41 with a Stromberg came in from Albuquerqe...I am close to the Pacific - should I change the jets?
 
From looking at the grayish insulators on the plugs, my 284 59A/B with 3 97's with stock .045 jets on progressive linkage runs a little lean, but very well. Great acceleration. No backfiring through the exhaust. Getting 17 mpg on the Interstate. I am usually near sea level and have not run it at elevations above 2000'. So I would say that .045 would be a good starting point.
 
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