Which Holley carb do you recommend for the Renesis, if I decide to go that
route. Not "P" ported.

--
Karibian

Won't work on the RX8 engine unless you go P-port and use the big 2 barrel
Holley. There is no carb manifold for the RX8 engine to my knowledge. Do you
have a 4 port or a six port
RX8 engine. ( I don't use the word "Renesis" because I do not know how to
spell it. RX8 is easier :))

Here is some stuff on the big 500 CFM 2 barrel Holley.

The trouble with the rotary after market manifold situation is there are so
many variations on the intake configuration that the market is not large
enough to support separate costly cast intake manifolds for all the
variations. That is a major reason we support P-ports.
P-ports work and fit the  same on all 13B and RX8 based engines.
The side benefit is you get 50 HP more and they are a couple of pounds
lighter in weight.

Here is a list of Mazda 2.6 L two rotor rotary engines that all have
different intake porting.
13B early 4 port.
13B 2 nd gen six port. Most popular.
13B 2 nd gen turbo 4 port.
13B 4 port Cosmo. Rare.
13B 3rd gen turbo 4 port.
RX8 4 port. Now obsolete.
RX8 6 port.

Also check out Mazdatrix Holley carbs for early 4 and 6 ports.
http://www.mazdatrix.com/R-HOLLEY.HTM

Paul Lamar

All:
I'm a "newbie". What is "P-ported"?
Herb,
Seminole, FL

The best explanation is contained in these articles.

http://www.rotaryeng.net/intake.html

Read the for sale section of the web site as Jeff Doddridge
will build them for you.

Also check out this youtube video.

http://www.youtube.com/watch?v=NKJ00JsnS8A


Paul Lamar


I've got a 2300 500CFM that I'm selling NIB.  The cheapest place is Amazon
for ~$275.  I will sell mine for $200 plus shipping.  I'm attempting to go
the gravity route instead so am now looking for a -4/5 carb.

Todd Archer

That is a good deal if somebody wants to go carb.