Rotary_Engaged

Just curious has anyone here considered the benefits of using a manifold insulator or spacer to bring down intake temps, and keep things cool?



This a common bolt on, in piston engines, and I think it might work well with our high temp rotaries.... I looked around but didn't see that anyone made these. However I do have a friend that custom makes them for other cars. He could easily whip one up off a design of a stock gasket, with thicker more resistant materials.



Any thoughts?

RE_TurboFB

Yeah I have seen them on ebay.com for like $20. they are made out of some thick reusable plastic. That insulates the engine from the intake. Hell cant go wrong for $20!! even if it did not and much performance it would pay for its self in gaskets since its reuable..

Rotary_Engaged

I've actually seen dyno's on these, they work well on piston engines, good for about a 4% gain from what I've seen. My bro doesn't use rubber he uses a heat resistant plastic, I'll look up the exact compound he uses.



But it actually felt good on my 4cylinder toyota, a little bit of improved throttle response, and little more torque. Was a nice little addition, I can't complain.

MJG

Seems like the kind of mod that wouldn't do any harm as long as it was a good port match etc and wasn't so thick that it started to alter the runner length massively.

Rotary_Engaged

Yeah I'm looking into having one of these made for me to see if it helps.

Rotary_Engaged

Oh they DO make these!

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...p;rd=1&rd=1

teknics

i have a spacer for my fc to put an fd UIM on it, it's .75" cnc machined aluminum, ive been thinking of running a co2 charge through it to see if it acts like an intercooler.



tons of possibilities for that little block.



kevin.