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View Full Version : Jet sizes with 39 FCR and 440 motor..


frogburner
10-31-2004, 06:48 PM
What jet sizes is everybody running on their 39 FCR's with the 440's?? I have a 52 pilot with I think like a 170,, and it run very good,, Just curious if I can take it to a 175..
jerry-89-250R
10-31-2004, 07:33 PM
i ran a 180 in mine
cals400ex
11-01-2004, 11:19 AM
mine ran good with a 165.
TRXRacer1
11-01-2004, 11:22 AM
Originally posted by frogburner
What jet sizes is everybody running on their 39 FCR's with the 440's?? I have a 52 pilot with I think like a 170,, and it run very good,, Just curious if I can take it to a 175..
If your running good with no lags your not going to gain anything going richer.