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View Full Version : Anotehr jet question



2001300exguy
05-19-2005, 02:49 PM
I have an alluminum airbox, k&n filter, procircuit headpipe, port and polish, highcomp piston, 406, and a stage 2 hotcam. i trashed my procircuit pipe and am going back to stock for a little while and need to know waht jets to run. i have no clue what it i at right now but i can look if neccesary. thanks

2001300exguy
05-19-2005, 02:59 PM
and also is there a difference between dyno jet kit and regular keihn(sp) jets. if so which one is better

2001300exguy
05-19-2005, 04:26 PM
anyone?

cals400ex
05-19-2005, 04:49 PM
the keihin mainjets and needles differ from the dynojets. i am not going to say one is necessarily better. whatever you run, it needs to be tuned properly. most prefer keihin.

it is hard to tell you what to run when we don't know what brand of jets your running

2001300exguy
05-19-2005, 04:55 PM
im pretty sure its a keihn

chucked
05-19-2005, 05:07 PM
Originally posted by cals400ex
the keihin mainjets and needles differ from the dynojets. i am not going to say one is necessarily better. whatever you run, it needs to be tuned properly. most prefer keihin.

it is hard to tell you what to run when we don't know what brand of jets your running

I think thats the first time ive seen someone spell keihin right.

cals400ex
05-19-2005, 06:37 PM
i would probably run around a keihin 155-158


yeah, keihin is mispelled pretty often

2001300exguy
05-19-2005, 06:41 PM
k thanks

chucked
05-19-2005, 07:23 PM
Actually dude I just did something similar to what you are doing. I have a big guns pipe, and I put a quiet core in it (which all it is, is a choke) I went from a 155 to a 143 dyno jet. There is a table around somewhere which I found to be possibly accurate comparing jet sizes. I have a 416 kit with a hot cam stage 2, and mild porting.