I just put a Jackson Racing Supercharger on a B18a with bolt ons only. The engine doesn't ping at all, do you think that it will need bigger injectors or are the stock ones fine. TIA

 

if you are running the JRSC with the normal/factory 6lbs of boost you should be able to run it with factory injectors without any problem...the FMU will increase fuel flow as boost increases.

 

Cool thats what I thought.

 

Does anyone else have any other opinions.

 

I dont know what size injectors are in the B18A enging but in my B16A2 I increased the injector size by %10. So I believe stock mine are 250 and now there at 264. Not a big diffrence and I dont have a boost gauge nor a fuel gauge (Lean/Rich) but I don't hear no pinging or knocking and it's on the stock 6lbs of boost. All I got's is this damn idle surge. I'll fix.......one of these days.

 

Stock injectors are just fine for 6 psi. Anything above 8 psi and you will want to jump to some 440's.

 

same here damn idle problem, but i think its between the blower and the manifold a vacuum leak