CLASS RACER FORUM - View Single Post - Fuel Injected motor...miss from 1-3K

MrWendy'sJr · 06-11-2012, 03:13 PM

Last year at the norwalk D-3 race we had a turbo start go bad so we went to a 12v optima's. For the next year I could not stage the car or do a burn out because the engine acted like it wanted to die. It wad a huge distraction and I lost the couple of races I was at last year because I couldn't get the car to come up on the converter after I staged.

It ended up being an issue with the map lagging just an instant behind wot. Dad does all the f.I. stuff so as far as I know he just tweaked the map. Another thing that was going on the O2 sensor was going out on the collector so the fuel air reading was a little off.

Another issue we had a couple of years ago, dad disconnected the water sensor at the shop and had forgotten to hook it back up. I go to do my burnout and the car is acting like its on the 3 step. I launch the car same thing acting like its on the limiter. So I just shift it myself, made it back to the trailer and check the log. The water temp was reading zero. The fuel was just a "little" fat, couldn't make fire. Just hooked it back up and turned the temp off so it just logs and has nothing to do with the f/a.

This is with the old holly stuff and we do have f.a.s.t. for another combo. Joe buchanan is a great wealth of knowledge, maybe he give u a starting point.

06-11-2012, 03:13 PM	#4
MrWendy'sJr Junior Member Join Date: Mar 2010 Location: Sandusky, OH Posts: 58 Likes: 2 Liked 25 Times in 1 Post	Re: Fuel Injected motor...miss from 1-3K Last year at the norwalk D-3 race we had a turbo start go bad so we went to a 12v optima's. For the next year I could not stage the car or do a burn out because the engine acted like it wanted to die. It wad a huge distraction and I lost the couple of races I was at last year because I couldn't get the car to come up on the converter after I staged. It ended up being an issue with the map lagging just an instant behind wot. Dad does all the f.I. stuff so as far as I know he just tweaked the map. Another thing that was going on the O2 sensor was going out on the collector so the fuel air reading was a little off. Another issue we had a couple of years ago, dad disconnected the water sensor at the shop and had forgotten to hook it back up. I go to do my burnout and the car is acting like its on the 3 step. I launch the car same thing acting like its on the limiter. So I just shift it myself, made it back to the trailer and check the log. The water temp was reading zero. The fuel was just a "little" fat, couldn't make fire. Just hooked it back up and turned the temp off so it just logs and has nothing to do with the f/a. This is with the old holly stuff and we do have f.a.s.t. for another combo. Joe buchanan is a great wealth of knowledge, maybe he give u a starting point.