I was wondering if anyone knew actually how much of a Intake temp decrease I could expect to see after the install. And how much more cooling you get out of Option B.

 

i haven't done a comparison of before and after, but with my dual pass option B i see 20-30 degrees cruising straight on the highway. I think what really matters is full throttle temps and i haven't seen mine go any higher than 140 degrees WOT up to 120 mph on an 80 degree night.

 

do you have to get the the dual pass kit in order to put the option b surge tank in?? also is 140 high???

 

Yes, you can do option B to your stock setup if you feel like it, the dual pass just allows the aftercooler to work more efficiently. Option B mainly allows more heat latency which keeps your car cooler for slightly longer and delays heat soaking.

Also, over 160 is something to really start worrying about, 140 for a 2.9" pulley and stock H/E seems alright in my eyes, but i haven't seen it that high as of late and that was when it would peak WOT around 115-125 right before i shut it down. Our superchargers are heat factories.

 

How does the duel pass work? I know it's the intercoller plate but how does it help if you just use the same stock reservoir? also how do you run to lines, do you just tape a hole in the tank?

 

the dual pass allows the single in and single out 4 pass to change into a single input and dual output hose configuration, changing it to a 2 pass in the aftercooler. the dual output hoses are T'd together and the stock reservoir still runs with 1 in and 1 out, so no tapping needed.

 

Why would that help? seems like it would flow less coolant.

 

in a 4 pass setup, cool coolant heats up through all 4 passes. in a 2 pass, cool coolant starts on the outside passes and then the coolant makes a second pass on the inside and goes back out the hose.

in the 4 pass, coolant may heat up so much by the 3rd or 4th pass that it can't help cooling anymore, so a dual pass allows a smaller routing of cool coolant. In the dual pass, the coolant may flow slightly slower through the dual pass due to mass flow restrictions, but it still allows for more efficient cooling (mainly more even spread in exchanging heat than the large amounts of cooling on the first pass and less cooling further on with a 4 pass). A larger aftercooler pump may also allow better cooling with quicker flow in the dual pass.