Oops, did I get the date wrong again? Gotta hit up Jamie on Facebook later to check to see when he'll want to do it.
It's the best way, but not the only way to do it. The original Ephatch member to do this was a friend of JPax's and did it back in 2004-2005 on a K24a2. As far as whp, if you look at Dan's Ep3 he's putting 270+ on the Ep3 manifold and a K20a3 head and meth injection. If Canuck had the K20a3 head even with the aftercooler he'd be about the same as Dan's Ep3. What alot of you are forgetting with the DC5 manifold is that it only flows SLIGHTLY better than the Ep3 manifold. The best available roots supercharger manifold in terms of flow is the Comptech manifold. Anyways, that's off the point. The aftercooler is only efficient to keep the inlet temps down to a conservative amount. If you live up North like Canuck and myself, you really don't need the aftercooler setup until you start pulling over 11-12psi (Unless you're in a warm climate (88+ most days in summer). Don't believe me? Look on clubrsx.com). Once you start pulling some decent psi from the Roots and add a return line, you'll need that aftercooler. Just don't overspin your blower too much.
Yup, been on my car for almost 2 years now. It was on a for a little while before that as well, but I took it back off because I bought a Bells core and aftercooler setup. It's a little extra work to put on vs. the Ep3 JRSC manifold, but if you wanna keep up with the turbo Ep3's on Ephatch, it's a necessity to keep the air charge cool when you start hitting some serious boost.
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