I assume you have meth? If not, why not add it to cool down your intake charge?

 

If you have a properly sized intercooler this all becomes a mute point. I disagree, based on what you saying your intercooler isn't working very well. Go bigger, don't over complicate it. FYI adding a second hx to mine took my IAT from a 80-90 deg rise in the 1/4 to a 22 deg rise. That's a notable change.

 

I logged a full quarter mile this afternoon at 15 lbs of boost (I have yet to pulley back down from the winter). With methanol my IAT increased from 76 to 82 degrees during the run (with methanol). At 15 lbs of boost I should be adding 188 degrees to ambient temp, so my current set up is better than I thought (need to verify that my sensor is not getting soaked in water meth). Next weekend I am going to log with and without methanol and see the difference.

 

Your sensor is probably getting hit with the meth giving a false reading. Regardless, I think you'll be doing more harm than good. It's your **** though, do it, post the results.

 

Who am I to disagree with kbracing, but (and this is hearsay) I think people have had better results with A2W set ups with tap water on the street than with A2A. I can see where this would be true unless your doing like 24 back to back 200 mph pulls on the highway..........in which case it wouldn't matter anyway cause you'd either be dead or in jail. lol

 

A2w in a street vehicle is fine for a stock pulley once past that hello high IATs, in turbo setup its a solid setup.

A2w with ice chest works for 1 pass at a time for drag vehicles


For the OP to worry about 140* iats, theres other things to worry about instead

 

I say OP is overcomplicating things. A single more efficient intercooler and heat exchanger would be better than trying to add a second cooler to aid an inefficient primary cooler.

 

According to Atomic, my Whipple HE is doing a fine job.

I'm logging IAT x RPM x Cyl Airmass.

While cruising, my IATs are about 20 above ambient, on average. If I lean into it, they'll get to 110-120.