scorpio333

Anyone elses fan run a lot more while tuned? The idiot gauge rarely wanders around, but that fan seems to run an awful lot.

jimkaray

It shouldn't run all the time but running more often is typical so as too improve performance buy keeping the engine cooler. You can adjust the fan on temp with the SCT and I assume the Diablo. Check the low fan setting. No lower than 210* is probably what you want. Mine runs almost always if I set the low fan to 200*. It is annoying for sure so I only drop it at the track.
Also, is this a custom tune and if so which one and who's? Tuners typically drop the fan on temp so it may be set too low for your liking.

scorpio333

It's a Demolet tune on an Xcal 3. I'll run it past John when I request new tunes for the upcoming gear change. Just thought it was a bit strange, doesn't occur on my truck tunes, but they're just canned tunes.

roadking05

I notice the same thing on my bamachip tunes. didn't think of it until this post came up. lol

crazyassracer

Maybe the tuner is using the fans like propellers to pull you down the road.
Switch to aviation fuel and then check your quarter mile time.
Watch out for power lines first though.

BigGameHunter589

i agree with crazy.. i think i'll buy some av gas and see how it turns out!