Muscle jet tuning game plan

[thor_eyerdhal]

I tried the FP needles, NO WAY to get a good AFR at WOT with them, they give a very rich ratio.
FP make them to work with their Vmax kit wich was designed to work without air restrictors..
So carbs need big jets and thin needles.

 

[Traumahawk]

Edited for content

 

[thor_eyerdhal]

FP think another way (i don't tell this is the better one) : more air give better emulsion.
So their kit don't provide air restrictors, so you have to use very big jets and thin needles to reach correct AFR

In the Vmax carb, the needle diameter is involved event at WOT.
Check your AFR at WOT with same jets and different needles ...
Thats because the needle never goes out of the emulsion tube, it act as a restrictor of the main circuit.

 

[bikedave99]

FP think another way (i don't tell this is the better one) : more air give better emulsion.
So their kit don't provide air restrictors, so you have to use very big jets and thin needles to reach correct AFR

In the Vmax carb, the needle diameter is involved event at WOT.
Check your AFR at WOT with same jets and different needles ...
Thats because the needle never goes out of the emulsion tube, it act as a restrictor of the main circuit.

Don't mean to thread jack, but was reading your sig Thor, and I think we need to see some pics of your bike!

 

[Traumahawk]

Edited for content

 

[one2dmax]

The needles have NO effect on if you need the air correctors. That is determined simply by the volume/velocity of the incoming air. So, if you have removed enough restriction from the intake (pod or our filter) then you have to use the air correctors. The only other way around this would be to install HUGE mains which then makes tuning all the rpm ranges virtually impossible.

The FP kit is designed for the stock airbox with or without K&N filter.

 

[huskyman510]

Awesome work Eric unk:, looking forward to the dyno results.

 

[thor_eyerdhal]

Don't mean to thread jack, but was reading your sig Thor, and I think we need to see some pics of your bike!

Done

http://www.vmaxforum.net/showthread.php?p=381733#post381733