92integraVTECgsr

Just curious, but what is the best temperature to have a car tuned in?

HRTuning

There is no best temp, but...

In the event that the IAT compensations have not been setup properly, you run less risk being tuned in the cold, which will more than likely have it run rich when it warms up outside.

If the compensation is setup properly from the start it won't matter at all.

Agnom

HRTuning,

I've been learning on free Crome, evertime the temperature drop more than 10 degree, i have to add about 2% fuel, is there IAT compensations feature on the free Crome?

Thank you.

Tony the Tiger

Best temperature will always be the temperature which you do most of your racing. As much as compensations can be tuned, there is always a reason why competitive race cars need constant retune to dial in their cars closest to their racing conditions as possible.

HRTuning

If he had a race car, of course.

98vtec

best temperature is the full range of temperatures.

sander

Any temprature is good, although the IAT sensors in the intake manfold are prone to false readings due to heat soak. Thats why there is multiple IAT correction tables like in Hondata, for different loads and different amounts of air passing or not passing the sensor.

Best sensor location is... multiple locations!!

Tony the Tiger

You can't go wrong if you tuned a car at a temperature that will be driven that that particular temperature 90% of the time, correct?

What if someone said 25 deg C weather is the best, but this particular car sees 10 deg C days 10 months of the year?

Best temperature to tune is the temperature that the car will be driven or raced the most, period.

That's why for OEM cars, you can clearly see different timing and fuel maps for a car mapped for U.S. versus a car mapped for Canadian-spec'd cars with identical octane requirements. The values are also different and "overlaps" each other at the SAME temperatures between US and Canadian cars, so compensations are simply, compensations because there are never enough sensors on the car to do the job 100%. The ECU is just there trying its best to keep all things consistent, but it can't take account for everything. That's why all the newer cars are trying to run their cars fully on a wideband AFR signal hoping to acheive this, along with a million other sensors like on new BMW's, Porsches, etc.. taking out all the open loop crap when **** changes...lol