Thunderjet

[Cutter]

Cutter has 2 thunderjets.
Becuase he is twice as cool as me. :2thumbs:

Guess we'll have to ride more... maybe some will rub off on ya'...


I went with the xXx Taz modification to my G carb

Like Slinger said, you definitely need the air flow for these...

... did the heads - valves - compression - cam - exhaust, but I didn't finish the job and really wake her up until I replaced the air intake to let them all breathe :2thumbs:

 

[Gas Man]

Great picture Cutty!!

 

[john sachs]

The area that the T-Jet comes in is regulated by the size of the AIR JET, and NOTHING else.You won't see fuel past the top of the tube without being at wide open throttle.The T-jet ONLY works at wide open throttle.Air jet larger = T-jet,and main jet LATER.
Air jet smaller = T-jet and main jet EARLIER.
Mikuni jets are numbered in metric sizes,ie. 135 = .053"
S&S jets are numbered in thousands,ie. 53 = .053"
I find on most of my builds,an .060" air jet works best.
Hope this clears up any misconceptions.
John

 

[Cutter]

Great picture Cutty!!

Yeah, I think you know the photographer... good guy :up:

The area that the T-Jet comes in is regulated by the size of the AIR JET, and NOTHING else.You won't see fuel past the top of the tube without being at wide open throttle.The T-jet ONLY works at wide open throttle.Air jet larger = T-jet,and main jet LATER.
Air jet smaller = T-jet and main jet EARLIER.
Mikuni jets are numbered in metric sizes,ie. 135 = .053"
S&S jets are numbered in thousands,ie. 53 = .053"
I find on most of my builds,an .060" air jet works best.
Hope this clears up any misconceptions.
John

I assume you mean that because the air jet is smaller it creates a stronger vacuum sooner in relative to the diplacement and length of stroke ?

Would position of the thunderjets "deeper" in the carb also bring them in sooner ?

 

[john sachs]

No................
John