RE: -=OFFICIAL HPI FIRESTORM THREAD=-
Hi guys. First im not new to nitro and tuning. Although i need help with this little guy. Just got the firestorm. Broke her in nicely and slowly all while making sure temps are atleast 190. So i ordered a case of werks racing fuel because of all the good reviews on it. I also have a savage 4.6 that even with traxas fuel 20% ive figured out how to tune. That engine didnt really like the fuel. Just too much bog when tuned right. Tuned for good crisp accel and top end it would slowly get hotter and hotter till it loses power from getting too hot. At that point i richen it 1/4 and its good to go. But when cold start i have to lean it about a 1/4 because it simply wont move or warm up. Then i richen it back up to where its safe and performance suffers a bit. Anyways all symptoms of too much oil, havent had a chance to run werks through the savage.
Onto the firestorm. With the hs needle flush i do some full speed runs in short grass and dirt mix. Once up to temp if i give her full throttle for more than 1.5 seconds or so it leans out and bogs. Didnt like that. I went over a 1/2 turn richer on hs needle from flush and at full throttle i cant get it to be consistant. It leans out again just a hair longer with the richer setting. 1/8 of a turn in from flush on hs needle and before it hits top speed it lean bogs. It shouldnt be doing this. i can run it 1 turn out from flush although my idle suffers and take off suffers just a bit,,,,,,, it still leans out just takes 2 seconds or so wot. Its all new. All stock. Tried different glow plugs. Tried traxxas fuel 20%. Still does it with that fuel just not quite as fast probably because the extra oil in the fuel.
My exhaust line is hooked up and all. I notice it doesnt have a nipple, it just goes into the exhaust hole. It always goes right down to idle. I have the 3 shoe clutch installed before even firing it up because i did my research. Tell me this is not normal please.... lol. I highly doubt its the werks fuel or any fuel. i tried hot os plug, medium oddonell plug, i dont think its the plug. Its got 3 stock head shims and all. Its not acting like an air leak to me, its like it doesnt have pressure to keep the h/s setting true. I know you shouldnt run these wot for prolonged times, but at flush setting and werks fuel, it leans out before it hits top speed once warmed up. The ls needle is a bit tricky too. Help me out on that too if possible. How far in from flush are you finding yourself on the lsn? I know it varies, i get that. Thanks again. great little truck, but on my savage i can turn the hsn rich enough untill it 4 strokes, i cant even do that with this thing unless the hsn is turned like a turn or more out. Even then it doesnt really 4 stroke. Once again ive had a few glow trucks in the past and never expirenced this with them.