Water to air intercoolers.

[RICE RACING]

Originally Posted by Mazdabater

Ah right so it can't be that bad then lol. Went and measured my s4 just then as that pic scared me because the rad seems closer to the front in an FD, gonna be a pretty tight squeeze but I should get it. I'm running a proboost t04z with an extend port so hoping for a bit over 300rwkw lets hope I get there.

You will do that too easily! I would tell you what I make but I have far too many internet stalkers who hang on my every bit of data and idea's lest we say I make a great deal MORE than what your goal is and all on a stock std SP intercooler

I did a comparison to the Mazda Capella I helped a mate develop (600rwhp car ~450rwkw) and from 110kph to 150kph (5800rpm to 8000rpm), peak power band for his car (no wheel spin in 3rd either) my RICESP basically matches it (using exactly the same rpm and gearing!).......

I run a charge temperature of ~40deg C on (moderate boost lol) see my boost thread (though I managed to equal the Capella 3rd gear accel using much lower boost!) the key thing I will tell you again is the chamber pressure profile under high power levels is your killer.

IF though you are only aiming for ~300rwkw range as measured on a dynohomodynamics used in 3R shitout mode. Then you can achieve this very very easily with the right tuning its only when you step it up to BIG supercar levels of power while retaining engine durability that it gets a bit tricky .................. and there are FUCK ALL people on the planet who know how to make road going rotaries live at this level on proper petrol (or even poofter MAD MAX "carry it in drums" sprog juice.