The reason why people always say that their 1.6 swap "DOUBLED " their power over a 1.3 ,
is because of the FUEL INJECTION you get in the swap, ........because the zuki carb SUCKS SO BAD !!
But , if you HAVE a 1.6 and you plan to run it on on PROPANE ,an intake manifold from a 1.3 will BOLT RIGHT UP to the 1.6 . ,
But........the motor mounts WONT WORK, and you will need an ADAPTER too bolt the transmission up :'(
I have a 40 over , CALMINI 2000-6000 rpm cammed ,head ported , shaved 30 thousandths,& 3 angle valve jobbed,intake ported,Doug Thorley headered, 1.3 ,
on a GOT PROPANE .COM injection system.........
And mine feels and runs like it has TRIPLE THE POWER over the STOCK carbed 1.3......... :****:
And, by keeping my 1.3, I did not have too change motor mounts or get a transmission adapter !!
ANY WAY.............I have kicked around the idea of building a "FLEA" type buggy myself,thats why I,m so into this thread!!
Heres how I MODIFIED the intake & adapter for MAXIMUM FLOW !!
AND NOW I GOT ENOUGH POWER TO DO THIS..........