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My car refuses to idle at 13.0 or leaner. Unless its around 11.0 it surges and rolls through about 500 rpm. What can I do to fix this?

And how do I know where to set the AE values? Is there anyplace I can find a cheat sheet that will give me a more general idea to the tuning of the system and car?

Take a look at this log and tune. Tell me what you think? Is there anything I'm doing wrong? Anything I should be concerned with or something I can improve on? Tune 4th Gear Pull Log

How lean or rich should I shoot for in light load around town situations. I know if I fatten it up the motor will run cooler but suck more gas. On the other hand a leaner mix should make the car feel peppier. What a/f are you guy running between 1500-3000rpm while in vaccum?

This question is in regards to a single turbo set up on a 32v ford cobra motor. The question is basic in nature however. I;m having a great deal of trouble programming my ApeXi AVCR controller. For the time being I am allowing the wastegates .5 bar spring to control boost. Which it does at...

Could someone explain timing to me. What exactly it is and how it affects how the motor performs. Also how adding it and taking it can affect things.

FAST system wideband 02 sensor looks like it took a ****. I have a static A/F via the fast log of 14.98 - its a flat line. Never moves. Any ideas of what it could be beside a dead o2 sensor? I suppose she could be burnt up. I was running waaaay too much timing. Here's a pic of the log.

I'm not certain but I believe the FAST contorls pump voltage somehow. Here is my continuing problem. I have normal FP when driving. However as the car enters boost it dies off. As soon as boost is present FP drops to 20psi. I have a weldon 1250 pump. Capable of more than meeting my...

I'm seeing 307Kpa at about 4300rpm. My boost gauges is only showing me 10psi - but this can't be right. Any ideas? What the hell is Kpa and is there anywhere I can find a cross referance chart for Bar equating to boost?

I know its lean - I'm throwing a ****load of fuel at the rpm/map oint - still lean. How is my timing etc ... http://www.snakeracing.net/cobra/run2.log

I increased the time that my logger records - now it wont log data at all. Any ideas? The trigger should be set to manual right? Then you merely hit the space bar to begin recording - simple I know. Is there something I'm missing or a possible com failure? :confused:

I was recently told that running leaded race gas in my car would kill the fasts 02 sensor. Any truth to this? I'm thinking no - but thought I'd double check.

I was hoping someone would take a look at my program and tell me if there is anything you would change. Runs great in open loop. Around town it stumbles a bit. Tell me what you think and offer up some advice. http://www.snakeracing.net/Cobra.gct

I'm running a GT80 R-trim turbo on a 99 Mustang Cobra. I'm having some turbo issues I was hoping you guys could help me out with. This being the turbo "spot" on the net. No matter what I do - the car makes 14.5psi. If I unplug the wastegate totally it makes 14psi - If I remove the boost...

I need a copy of C-COM wp if anyone has one on their system. Thanks. I'm at work and wanted to play around w/ the software. Anyone have it handy?

I'm running a 32v Cobra motor, using a single turbo system. I'm looking into all the aftermarket computers and was recently quoted 6700.00 for a FAST setup installed and tuned. Does this sound remotely reasonable? How many hours should I expect to see in the install? Is the accel set up...