Have any of you upgraded the eat exchanger? Been looking at them, but haven't been able to find info on how much if any they lower IAT2.
I've drove around on mine for sometime. On a 37 degree day. Iats2 were 120's. to high for me. Notice the whipple\ KB are thicker. Like to get 13 gt500. I looked at my dads damn it's huge. My thing is the fan running on all the time ( afco). At highway speeds they should be shut off
Somthing is going on because mine stays within ambient unless im just sitting there
Somthing is going on because mine stays within ambient unless im just sitting there
Didn't realize IAT was that high on blowers. My centri IAT is always within 10° of outside temps.
Depends where your sensor is and how its wired. If you use the Roush wiring into IAT2 and log IAT1 then you are seeing the temp from the sensor in the MAF.
As far as centris the IAT sensor is usually isolated in a tube and they tend to read near ambient when cruising around. Not going to happen with an IAT sensor mounted to an aluminum intake thats bolted to an 200 degree engine. If you watch the IATs will dip when nail a PD car, then start climbing after a few seconds - thats the test of the intercooler system's effectiveness.
Larger capacity heat echanger will most likely not lower the cruising around IATs if the sensor is in the same place, but will make that time between the IAT dipping and starting to rise longer.
IMO the Roush HE is adequate with the 90 and 82mm pulley for 1/4 mile blasts in good weather and general playing around, 50-130mph blasts (on a closed course naturally) etc. If I was running smaller pulleys, texas mile or road racing where I was using a lot of throttle I would want a larger exchanger. The fans would be nice for cooling between rounds and keeping heat in check during the burnout, staging etc at the dragstrip on warmer days as well. Should help with consistency if anything. Or if you sit in traffic on a 100 degree day the fans would be nice to be at the ready when things open up
I've never seen any A-B logs doing nothing but swapping exchangers on similar days temp-wise, just 1/4 mile would be interesting to see. Like anything else bigger is usually better but if the pump and core in the intake manifold cant take advantage of the extra heat excahanger capacity there may be diminishing returns.
In other words, I've never tried it so I dont know
Roush is thin and large (surface area) while the afco/cr doesn't have the surface area the roush has. Afco/cr are alot thicker though.
Maybe I have air in the system ? I filled it up, let the pump start pulling/pushing the fluid through. Doesn't seem like it as water is rushing through.
I use aeroforce gauge to read ITA2IAT2 only recently became visible in SCT software. The latest live link update shows it and a bunch of other pids you couldn't see before
The water should be rushing pretty good, unless the bottle if illed all the way then its hard to see. I just went through some of my old logs (I had the roush sender wired into IAT1) and 120 is about the norm cruising from 40 to 75* outside. I have one log from a 90 degree day and it was around 125 just cruising so if the ambient air changing 50 degrees only makes a 5 degree difference not much you can do to drop that temp.
So afco wouldn't make any change then, is what you are saying? I'll have to get in my Dad's shelby (13) and see the IAT2.
The thing is I've read that whipples run cooler..wonder why that is since they are compressing air all the time.