JRENIGAR

iTrader: (37)

Exactly, mine usually runs 10-15 above ambient running down the road. Temp climbs pretty fast and ends up 30-40 deg above what it was at the beginning of the run, depending how long of a run I make.

chief455

iTrader: (21)

hmm, my twins going up ~60* at the end of a full run sux.

The Alchemist

iTrader: (19)

I think my IAT sensor is extremely lazy. Here I thought my FMIC was really efficient, but after adding the water/meoh injection, I see that the IAT sensor reacts equally as slow dropping the temps as well.

So what sensor are people running that reacts quicker??

FasTimeSS

iTrader: (47)

at the end of the track mine is 161 degree

BuffJoeyD

iTrader: (2)

Lots of the Turbo boosted cars I work with start from around 120ºf IAT and can drop 30º during a pull once the meth comes in. All FMIC air/air cars.

JRENIGAR

iTrader: (37)

I use the Oriley auto equivalent to the "Wells" brand sensor part #SU127 or "GM" part #25036751 because it could be threaded into the aluminum tubing on my Vortec kit. The sensor is threaded into the last part of the kit that attaches to the TB. I loged a run with a predator tuner and it started at 91deg and ended up at 104deg on a run from 50-125. It has been verified by a lazer pointer thermometer thingy and is very accurate IMHO. In my car with 3.23 rear this was upper 2nd and all of 3rd gear roll racing a friends 2010 camaro. I dont have meth or anything aside fron the air/water intercooler from Vortec...

98Z28CobraKiller

iTrader: (17)

Sorry, no way that a blower car is seeing ambient except for maybe when you turn the key and the only way that it's climbing only 3-5 degrees in a pull is if it's air to water with ICE in the tank. You may want to check sensor placement because I've never even seen a stock NA car read ambient after it's warmed up.

EDIT: I see in the following post you mention a lazy sensor. I'd have to agree.

I see about 10-15* over ambient cruising and during a pull it usually starts around 20-30* over ambient (after burn out and staging), the drops about 10* for a couple seconds and then starts climbing to about 60* over ambient by the time I let off. I have a monster A2A 24X12X6 core.

dville_gt

iTrader: (5)

this is what i see, i'll start a run at 100* and when the meth hits it almost instantly drops to ~70* and creeps to ~75-80 at the end of the pass.

stangtrader

iTrader: (2)

I was seeing 5-10° above ambient at cruise speeds unless my pipes get heat soaked and and roughly 30-40° above ambient after a first thru 4th pull on 14psi on a e30 mix

chuntington101

It would be intresting to see how much ambient air is actually passing through the IC's used. I know a guy with a Noble M12 did this and he got drasticly below road speed numbers( as in less than 50%) and that was with a fully sealed IC box and the air discharged into a low presure area behind the car (mid engined). I would guess the some decent shrouding could really help in keeping takes temps cold!

Chris.

Doug F

That is right about the sensors reading slow, and your ECU may only be updating them so fast as well, don't think the factory stuff is meant to log that quick. At 17 PSI at the end of a 1/4 mile, I"m at about 270 out of the turbo, and with a modest W/M flow, down about 100F at the back of the intake (170 F) (no intercooler). If you look at the slope of the rise of the temp, you might be able to see if the reading is accurate, or limited by the sensor/ECU reading.

The guys I know that ran heads up classes that didn't allow any intercooler said they were above 300F.

00rcsb

iTrader: (1)

After some testing friday night i was seeing 88 max iats. But that was 19 lbs boost, air to water intercooler with fresh water and ice mixture with e85.

ninetres

iTrader: (35)

60* after a couple pulls, at idle on a 90* day A2W. Haven't logged any boost pulls yet. Never realized there was a "delay" in the GM thread-in IAT. Interesting.

The Alchemist

iTrader: (19)

For the record, I'm using the factory IAT sensor that came with the 2000 F-bodies, not sure if it's the same as the other years, but it's the press in one with the rubber grommit.

Z-28

When does the computer start pulling timing? Or at what temp should it start pulling timing?

ramairetransam

iTrader: (18)

i want a fast iat sensor too, id like some accurate readings.

JRENIGAR

iTrader: (37)

Tuner set mine to start pulling timming at 120deg F...

T76s10

iTrader: (6)

straight 93 octane, 9.5:1 comp, ebay intercooler
100 degrees cruising summer, 130 degrees after wot pull
cools back down to 100 degrees in 10-15 sec