Sprintcarkid600
New member
Well I'll start off with a little background. Last year I got a 270 and a pmp chassis. I traded my 2001 yamaha yz125 and I started in the 270. The whole year I had troubles getting the car to clear out and when it did my setup was so wacky the car was difficult to handle. It would dart and turn real hard whatever direction i would turn the wheel. This season I had my motor ironed out and hit some play days and the car was great. Was fast pulling really hard. It was a 1/4 high bank track and I was on the track with 1000cc dwarf cars and I was smoking them. Gaining half a track on them every lap, and then flying past them like they were standing still. It was blast. The first race of the season the car won't run right. Won't clear out, handled fine but never could get it to hit the power band because it was like I was running to high of a gear and to fat of a jet but my plug was never fouled and looked perfect, that nice coffee color your looking for. I could slam it into 3rd and the thing would wake up for a moment then fall on its face. Sometimes if I shifted back up when she was alive it would stay alive through the gear and haul ass and if I kept my foot to the floor it would keep clear and scream down the straight but as soon as I feather the throttle for the turn it falls on its face. I'd downshift and sometimes it woke up but most times it didn't. I went through 3 races this season dealing with that frustration trying different jets, trying leaner and richer fuel mixtures, trying different premix, new cdi, new pulse pump just throwing parts at it until I gave up. I said no more, stripped it down the the chassis, put it in my shop, with all the parts boxed up and found a 600 roller chassis with an 05gsxr600 engine that had a bad cylinder for 800 dollars. Then I found a crashed 04 gsxr600 and I bought that motor for 250 bucks. Took the methanol setup off the 05 and put that on the 04 and slapped it in the car. It all started back in March. I'm finally ready for my first race this Saturday. I found out the 3rd cylinder injector was stuck open so I took those off and put the stock injectors on it just to get it running for now while I'm waiting for my autotune wideband setup from dynojet for my power commander 5. Now I can focus more on setting up the corners of the car but I don't know where to start. It's a coil front torsion rear 4 link car. Wide chassis, panhard. Idk what coils I should be running or what bars or what shocks or what changing any of that will even do. I'd you could point me in the right direction I'd much appreciate it