Thread: ZF behind 3.5 twin su

Ever thought of fitting the 3.9 Hotwire EFI system? Simple enough system and less problems than the flapper EFI.

Just a thought

Trav

Originally Posted by justinc

The overall ratios for the 727 carb 3.5 aren't that different when you take the 1.003:1 case into consideration. The best mod I ever did was to fit up a 1.223:1 LT230 from a 5spd D1 to the back of the 727 and it actually accelerated The need for the carb hi comp 3.5 to rev actually helped, it still got to the same top speed with the 20% lower ratio High range

Adam is using taller tyres, so using a 1.411 defender High range may actually help in this case, too.

The Hi comp carb 3.5 is actually pretty torquey compared to the low comp EFI donk...

JC
jc

Out of interest, what is the ratio on the D1 auto LT230?

Cheers - Gav