510-FD

I have thought about this for years. Has anyone ever seen, or heard of anyone making a 20B, high compression non-turbo motor? I would think that this would be very great. Lightning throttle response, great torque, no turbo heat-weight-complication. Could anyone estimate the weight difference of a 20B N/A versus a 13B-REW, considering the turbos, intercooler, piping, heavy manifold, etc? I would love to see a set of 20B N/A hedders, I can picture it all in my head. I am in the middle of an intense 510 project (using full FD subframes, PPF, suspension, etc) and was just wanting some other opinions.

Thanks,
Brad P.

510-FD

Just found the 20B section, comments are still welcome.

diabolical1

iTrader: (3)

i've heard of this before. i can remember even seeing a picture of one, but i've never laid eyes on one in person.

i can't recall for sure, but i think Jeff20B (on this forum) is building one - but i might be mixing him up with someone else.

RETed

How much power are you looking for?
We just made 232 at the wheels, which is a lot if you look at the torque graph.
This is on a bone stock 20B sans turbo system.
Pics of the car in the 20B section.


-Ted

GUITARJUNKIE28

i you were to use the 9.7 rotors from an s5 n/a, you should get some great power out of the thing.

just make sure to get it all balanced--as you'll have parts from 2 motors as donors.

Project84

www.mazdatrix.com sells RX-8 rotors for $311.23. They have a 10:1 compression ratio. I'm not 100% sure on the specs as far as the size of the apex seals, and whether or not they work with non-renesis 13B housings, or 20B housings. Something to consider though.

GUITARJUNKIE28

outstanding.
i suggested the 9.7 because i didn't know the reni's were available cheap yet.

Jeff20B

iTrader: (13)

I'd go with 9.7 over the Renesis rotors unless I got a good deal on them. Then I'd need to mod some Renesis counterweights or lighten some 20B counterweights.

GUITARJUNKIE28

300 is a great deal...