rg97 Posted May 15, 2013 Report Share Posted May 15, 2013 Got the GPS out for my 394 today, surprised that it would only barely go 70 down my road. Im running 102 octance fuel, 20 in tires, full fenders, and a stock ratio. What could be the cause? everything you need to know about it is in my signature. any questions about it, ask! I can answer them. Thanks in advance -rg Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted May 15, 2013 Report Share Posted May 15, 2013 Is this for real? Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 Oh shut up I'm not bansheegoon, yes its for real Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted May 15, 2013 Report Share Posted May 15, 2013 What are you expecting?? You have stock gearing with 20" tires. Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 Could be worse, I have a set of 18's on ITP rims that are coming off asap for a set of 22's, just haven't decided which tire yet Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 Fenders are staying on. This is more for backyard/dune fun that top speed anyways. I just thought it was strange because I've seen bone stock shees that go 70 Quote Link to comment Share on other sites More sharing options...
joewest Posted May 15, 2013 Report Share Posted May 15, 2013 Won't go any faster without changing the gear ratio or sprockets lol. Quote Link to comment Share on other sites More sharing options...
camatv Posted May 15, 2013 Report Share Posted May 15, 2013 gearing motor weak on top and running out of fuel motor running to lean from fuel starve and about to blow the hell up.. thats what i would check. to run top speed for any amount of time usually takes a pretty rich mixture... plus timing, electrical, motor condiditon, air filter tire size wind speed etc will ALL affect this issue. 1 Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 Jesse, thanks for actually answering Everything is good. The 102 race gas was my dad's idea not mine. apparently $15 a gallon makes it run faster . we have the jetting perfect for it. when we bought it, the pilot and main were waaay rich, we have it very slightly rich right now, because im not going to chance a lean-engine breakdown. I never did a compression test, but I have 22cc domes, and its not easy to kick over. I was thinking too that since the T5's are made for a stock engine, they arent big enough to give me the full top end power. in 6th wot, it just keeps going till it revs out, no flat spot. I was going to buy a +1 tooth front sprocket anyways Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 after i get though this tank of gas, we were going to switch to normal (2 stroke) gas so we can save the 102 for silver lake. definitely will get new mains for normal gas. I'll throw a richer main in and see what happens. last thing i want it to do is blow up The dealer i get my gas from sells up to 120 octane, not going to go for that ill do a plug chop and report Quote Link to comment Share on other sites More sharing options...
LowlyOilBurner Posted May 15, 2013 Report Share Posted May 15, 2013 $15/gallon for 102? Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 15, 2013 Author Report Share Posted May 15, 2013 $75 bucks for 5 gallons Quote Link to comment Share on other sites More sharing options...
rg97 Posted May 16, 2013 Author Report Share Posted May 16, 2013 will do. thanks for the advice. what do you mean exactly when you say "keep an eye on it" Quote Link to comment Share on other sites More sharing options...
J-Madd Posted May 16, 2013 Report Share Posted May 16, 2013 Your not even hitting 9000 RPMs in 6th. Quote Link to comment Share on other sites More sharing options...
bansheegoon Posted May 16, 2013 Report Share Posted May 16, 2013 after i get though this tank of gas, we were going to switch to normal (2 stroke) gas so we can save the 102 for silver lake. definitely will get new mains for normal gas. I'll throw a richer main in and see what happens. last thing i want it to do is blow up The dealer i get my gas from sells up to 120 octane, not going to go for that ill do a plug chop and report . are you using performance enhancing or just leaded race fuel. You will be fine with 92 on a stock motor you aren't going to benefit with expensive gas unless its VP,trick, or others that are oxygenated and performance enhancing gas. If you have higher compression,advanced timing etc. You will need the higher octane to prevent detonation or "engine ping". A common sign would be your plugs backing out on their own Quote Link to comment Share on other sites More sharing options...
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