Jetting help

[frankracer88]

So i am decently new to my banshee. Iv had it for almost a year and it was bone stock until just recently. Its an 87 and was not in the greatest condition so iv torn it apart and entirely rebuilding it. Im not super familiar with jetting so i could use some help getting it right.

Heres my mods:

FMF pipes

Answer 2 silencers

MSD ignition

Open airbox

K&N fitler with adapter

Vitos stage 2 reeds

and a few other non engine related things

 

I am at sea level and the temperature is pretty random but it will be between 80 and 100 degrees.

 

So could anyone tell me what jetting that i should be running. It would be really appreciated. Also if anyone knows the MSD igniton and what timing i should change everything to it would be amazing.

Edited August 29, 2008 by frankracer88

[mopar1rules]

what fmf pipes you got? you are probably going to be at like a 330-350 main jet, with stock needles on 4 clip postion (coming down from flat end), 27.5 pilots and 1-1/2 or 2 turns out on air screws.

[pr0blumz]

He's right on the pilots and air screws but more like 280 on the mains and try the 3rd clip from the top on the needle. 330-350 is when you get into dune and drag ported cylinders.

Edited August 29, 2008 by pr0blumz

[frankracer88]

the pipes that i have are FMF fattys

[mopar1rules]

He's right on the pilots and air screws but more like 280 on the mains and try the 3rd clip from the top on the needle. 330-350 is when you get into dune and drag ported cylinders.

 

 

i like to set people on the safe/rich side to start with, and let them decide weather they need to drop down on jet sizes. yeah, he'll probably end up at like 300 or 320 mains. remember, he's got an open airbox w/k&n filter and pipes.

[bigboybanshee]

He's right on the pilots and air screws but more like 280 on the mains and try the 3rd clip from the top on the needle. 330-350 is when you get into dune and drag ported cylinders.

 

:thumbsup:

 

I'd recommend the same, 280-290 main