13BT_RX3

Has anyone been sucesful at porting a Renesis with significant power gains?

colin204

Get in touch with this guy http://www.rx8club.com/member.php?userid=14254

SirCygnus

iTrader: (1)

um.... anyone should be able to port a renesis engine. talk to racing beat, or anybody for that matter. but its an expensive process. wait untill you blow up your engine.

diabolical1

iTrader: (3)

shoot a PM to the user guitarjunkie28. i believe i visited his website once and he was working on one a while back. i figure it should be done by now.

Cowboyfun

from what I've heard, you cant do much porting because mazda did a really good job on it and the ports are already quite big...IIRC if you port out too much, the side seals get hung up.

rotarygod

iTrader: (1)

You can do a little bit to them but it doesn't really involve enlargening them so much as it does working on some other things. Those intake ports are huge. Most large streetports on a 13B are only approaching them in size. The exhaust ports need some work though. Speedsource Racing is getting 260-265 hp at the crank with an internally stock Renesis so it is a quite capable engine as is. You just need to tune it good. RX-8's have a lot of potential left in them. Most just haven't realized it yet. The iontake ports are big enough. There is no point in going larger. Larger doesn't always mean more power.

Cowboyfun

Yeah, speedsource did a tech session at ss9 and said that they didn't really port them, as much as they just smoothed runners, etc. and yeah those ports are huge.

13BT_RX3

No double bridgeported Renesis motors yet?

GUITARJUNKIE28

not anyone... they aren't like the older motors in that respect.

rotarygod

iTrader: (1)

Why? I wouldn't try it personally. I'd hate to ruin the advantage that a lack of port overlap has. That may sound funny and counterproductive to some people but you can't deny the results of that engine vs the 13B. How many other rotaries has the ability to hit 260 hp without extreme porting? Bridging one doesn't mean that you'd necessarily go higher either.

13BT_RX3

What about a semi-Peripheral port?

Judge Ito

my renesis engine has alot of port work on the exhaust..

rotarygod

iTrader: (1)

That I can believe. The stock exhaust ports look horrible.

GUITARJUNKIE28

i concur.

riceburner1r2001

iTrader: (4)

hey dave do u see that remesis around town the 1 ported

Lasse wankel

I have done flowtesting on a 04 Renesis engine and can say on the intake port side the flow gained 9% and on the exhaust side 12% I haven't dyno'd it yet.

eivad1

have u seen the ported ren u did dave

GUITARJUNKIE28

there's 2 in texas, 3 in socal, and one i'm letting a friend borrow. then the one i just put together yesterday, but that's exhaust ported only--no intake.

AlexG13B

iTrader: (7)

wat size Injectors do they run?

GUITARJUNKIE28

here