8V Ignition Hopup ???

[gearhead13]

This is true also. The 16v heads are substantially more efficient than the 8vs. A simple look at the jet sizing on a 16v 1100 vs an 8v will show you. The head on the 8v doesn't flow as well, thus the jets being larger to allow what pull there is to pull more fuel. A 16v has better flow, so the jet size can be a bit smaller as the flow will pull effectively the same (as necessary) amount of fuel...

It's an odd thing... Some jet kits for other later Suzuki models actually have you decreasing jet sizes or slide port sizes...

Bigger isn't always better, just like more advance may or may not be better... Testing would not only be a good idea, were it me, it would have to prove that it was necessary...

I think the difference in jet size is because of the different sizes of the main air jet orifice on the 8v and 16 cv's.

[renobruce]

The only question I have at this point is why can't a 1150 ignitor with 20 degrees of advance be put into a GS1100G 8V motor where it will be run with 17 degrees initial instead of 12 as the 16V would want?

Allow me to complicate things.

The 1150 ignitor is 22 degrees, not 20, like the 16v 1100.