mmmmm, antifreeze taste sweet...

[89 Cobra LX]

I think you summed it up with the track conditions.....

No traction = low ET
Hot, humid weather = low ET

Motors need dense, cool air to make good power. I would suspect your best ETs were when the weather was not so hot.

Also, your combination seems a little odd. I've never heard of a chip using a 195 degree thermostat. I've never had much luck with mass-produced aftermarket chips, but I wouldn't think it would hurt your performance. You could try ditching the chip and going to a 180 degree thermostat, but I think the problem was probably due to the weather and track conditions.

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Eric - 89 Mustang LX coupe

302 - Cobra Intake - GT40p heads - TFS stage 1 cam - FRPP 1.6 roller rockers- Naturally Aspirated

3.73 gears - KYB shocks and struts - Eibach springs - HPM Mega-bite Jr lower control arms - HPM upper control arms