hughmyron Posted January 25, 2014 Report Posted January 25, 2014 (edited) Whats a good starting point? Drag ported 392, CPI inframes, PWK 39mm with pods, av gas. Edited January 25, 2014 by hughmyron Quote
locogato11283 Posted January 25, 2014 Report Posted January 25, 2014 Elevation? Temperature? You should be right around 160-165 main and 45-50 pilot. Quote
hughmyron Posted January 25, 2014 Author Report Posted January 25, 2014 Sea level, and not sure on the temp. Lately its been really cold. Forgot to add its got VF3 reeds. Thanks. Quote
n2otoofast4u Posted January 25, 2014 Report Posted January 25, 2014 Id start by turning the gas valve on. 1 Quote
sprinklerman Posted January 25, 2014 Report Posted January 25, 2014 Id start by turning the gas valve on.I'd start by putting gas in the tank.. Sent from my SCH-R970 using Tapatalk Quote
dozer Posted January 25, 2014 Report Posted January 25, 2014 id start by mixing the gas, after i bought it and the mix. Quote
5150banshee Posted January 25, 2014 Report Posted January 25, 2014 I had 160,60 on mine I'm in SoCal so ride mainly glamis and In dumont drop 1 on the main I had the same set up ... Vf3 drag ported timing at 6 degrees blah blah blah but I ran t5 for season and then swapped to inframe shearer Sent using Iphone5 onTapatalk Quote
sleeper06 Posted January 26, 2014 Report Posted January 26, 2014 When on gas my stock cyl drag ported bike chopped perfect at 180 main in 40 deg weather I ran a 182 with no noticable diffrence with a decent port job I would guess mid 170s im at sea level Quote
hughmyron Posted January 28, 2014 Author Report Posted January 28, 2014 When on gas my stock cyl drag ported bike chopped perfect at 180 main in 40 deg weather I ran a 182 with no noticable diffrence with a decent port job I would guess mid 170s im at sea level Yeah my builder told me the same. Thanks. Quote
sleeper06 Posted January 28, 2014 Report Posted January 28, 2014 In a 1/4 mile my bike sucked the bowls dry just fyi if your experiencing any problems keep that in the back of your head 1 Quote
RadarRacing Posted January 28, 2014 Report Posted January 28, 2014 Av gas is different than many of the regular race fuels. I would start at 180 -185 and you will probably need to work down. Usually the ones I have jetted with 39s have been in the 168-175 range. I like the CEL or CGL needles and on avgas I would try CGL. Jeff at FAST has em in stock usually. 1 Quote
hughmyron Posted January 28, 2014 Author Report Posted January 28, 2014 In a 1/4 mile my bike sucked the bowls dry just fyi if your experiencing any problems keep that in the back of your head Yeah im going to be trying a bunch of different things, sunday theres a bunch of asphault racing going down so im trying to get her built by then. Av gas is different than many of the regular race fuels. I would start at 180 -185 and you will probably need to work down. Usually the ones I have jetted with 39s have been in the 168-175 range. I like the CEL or CGL needles and on avgas I would try CGL. Jeff at FAST has em in stock usually. Thanks alot of chiming in. anyone know if there is any benifit to reed stuffers on my setup? Quote
sleeper06 Posted January 28, 2014 Report Posted January 28, 2014 I have them, but allways have couldnt tell u if there would be a diffrence, asphault is all about the clutch tune, I leave at consistant rpm and adjust base pressure for best 60ft, my suggestion is dial in jetting 100% before u tune any other aspect of bike, tuning clutch and chassis all changes on engine tune, take your time write shit down if done rite it will get easier to get down the track 1 Quote
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