PDA

View Full Version : 440 jetting? need a starting point.



Honda5
12-28-2004, 06:18 AM
I'm building a 440 with 11:1, stage 2 cam, K&N, full exhaust and cleaning up the head castings and need some jetting ideas and would love to hear what some of you guys running 440 are useing.

Mobile Dyno
12-28-2004, 06:32 AM
My 440ex has 11:1,White Bros Cam, TwinAir filter, Dynojet Jet Kit, FMF Titanium4 with powerbomb header. I did some runs on my dyno with the air/fuel module to check the jetting. I'm at 312ft above sea level. I'm running a 170 main. What altitude are you at or where are you located? What exhaust are you running?

Heres a pic of it. I'll get some better ones soon :)

BSTURDIVANT
12-28-2004, 06:43 AM
Start with 158.

Honda5
12-28-2004, 10:59 AM
I'm at about 3 inches above sea level on Maryland's eastern shore I guess I'll start at about 165

sportraxkid
12-29-2004, 04:20 PM
I am running at 4500ft about sealevel and Im running a 42 pilot and a 168 main.

mojoe2878
12-29-2004, 05:01 PM
it depends on what jets you are using also.
im running a 170 main DJ and im right at sea level and thats with a full exhaust, 11:1, uni filter and no air box lid. you will also want to go up to about a 42 pilot jet also for easier starting.
if you are using DJ then i would start with a 165 or a 170.
if you use keihn jets then i would start with a 170 or 175 since they seem to be smaller than the DJ are.