well im on the orlando forums. I guess ima have to flat bed this big yellow pain in the ass. Just seeing if anyone on the forums could help out in taking it over to Speed Clinic in Kissimmee. If you got a truck with a flat bed i would really appreciate it. Thanks a lot!

 

Probably no need to flat-bed it. Your tuner can probably do his thing in your garage/driveway with his laptop. No need for a dyno, assuming you have all the tools necessary (set of wrenches, etc.) to fix anything identified as a problem.

Usually tuning rates are cheaper than hourly shop rates, FWIW. Plus, you would not have to tow it.

I would call your tuner, and see if he can make a trip out.

John

 

hmmmm your right.

 

50 psi at WOT redline? thats about 30 psi to low for proper fuel atomization is it not? Especially for these big holes in a 880cc injector

 

@ Idle.

 

Driving your car at those afr's should be fine when at low or no throttle. Actually the exhaust temp at afr of 17 is cooler than afr at stoich. Which makes sense because at stoich the reaction is maxing out, thus generating the most heat. At an afr of 17 there is not much fuel there to create much heat or power, which is why the car wants to stall when at those afr's. My car has the same problem, Ive been trying to track this down for a couple of months now. My car ony does it under real low throttle, it will oscillate between 14 an 17 for a couple of seconds. Im using an emanage ultimate so I guess I can say that this common problem between the 2 different emu's is just a tuning issue. I think mine has to do with the open loop transition point being set at too low of a throttle position.

 

If it does not create a lot of heat or power why do cars detonate when they are lean? Is it because people are going into WOT and then did not notice they were running lean???

 

They detonate when they are lean becuase there isnt enough fuel to "burn" in a clean continuous state, so the little fuel there is, "DETONATES", or explodes........

 

Lean at WOT is an issue, as that is where the heat comes in. Lean at VERY light throttle is not unusual... like was said above, its a combo of AFR and load that lead to heat (I believe).

I see mid-15's at VERY light throttle (just before loaded decel would take over). I have also seen AFR's in the 18's during loaded decels... which I have been told is not uncommon, as fuel injectors just cut out on loaded decel (as does spark/timing, I believe).

John

 

Why doesn't anything like that happen when you run out of gas?