I just got in the mail the zzperformance. FM HE. im planning to run both my stock heat exchanger along with the front mount. my question is, which one should i have the coolant go in first... the front mount or the stock he thats between the rad and cond???has any1 expiremented with this?? if so which is the best way??

 

doesnt matter, it all ends up flowing around anyway. i took the stock hose off of the IC pump and ran a line from there to the FMHE, then from the FMHE to the stock HE, and the stock HE goes works as it normally would

 

it does matter, you want the coolant to go through the stock intercooler first to take the first hit of heat (especially since it's sandwhiched in between the radiator and a/c condensor and doesn't hardly see any airflow). You want the front mount to get the coolant AFTER it goes through the stocker since the frount mount is mounted right up in your grill where it gets all that cold air flow to chill the fluid.

reroute it and I'd bet your IAT's drop another 5+ degrees.

 

that is what i was thinking..... but wanted to see if any1 had any definitive answers.... compared the 2 diff ways.

 

It only makes sense. I was considering even looking at this thread as I figured it would be a topic beat to death. I'm glad I opened it and read it now, as you setting it up backwards would probably keep you 5+degrees warmer IAT's.

 

how drastic of a drop do u think i will see with the fmhe??

 

Drastic, I dunno. I do know that it will help keep your IAT's from getting so hot so quickly. Is that all the mods in your sig that you have? Do you know what your IAT's are now before the h/e?

 

well i 4get to put in there 1 step colder plugs... i usually see in regular driving about 130ish range and when i get on it, depending on how long im on it, ive seen up to 160s

 

Since you do already have the dual pass w/ opt. b, you should see a pretty considerable drop in temps. I'd say about a 10-15degree drop. Maybe more, all depends.