Tag: intake air temperature
ER SMIC vs RS4 SMIC and 50/50 meth logs
by Matt on May.11, 2010, under Logs
I ordered Evolution Raceworks side mount intercoolers yesterday. I was divided between those or a front mount. FMIC kits are cheaper and have yielded better results, but I didn’t want to deal with cutting everything up to mount it and then not have things fit well and deal with more boost leaks.
I am currently running RS4 intercoolers and further cooling the charge with water/meth. The IATs hover about 20* over ambient and I know they can be lower.
Conveniently, my friend Brad with a K04′d S4 just had ERs installed along with a fueling kit and tune for e85. Last week we met up and ran some logs.
Here’s a plot of the two setups:

I talked to someone in Canada with the same Vast 93+meth tune, but with ERs. He said his IATs hover around ambient, so I’m hoping that’s where I end up.
For kicks, here’s a plot of 4 setups. Brad’s stock SMIC car on K04s, my stage2+ car on just RS4 SMICs, my current RS4+meth setup and Brad’s current ER setup. Soon I’ll add a ER+meth plot

I am a B5 S4 owner that operates under the delusion that a single car can be comfortable, attractive, and fast. Join me as I journal the repairs, maintenance and mods of my S4 in the attempt to realize a possibly unobtainable goal.