What, if any, would be the advantage of a 20B over a 13B?? Or vice versa??

please include cost, maintenance, parts, service, customization, performance, etc.

thanks

 

pro's:

low end power

you can have 300+hp with out opening the motor



cons:

its not cheap

expect about 11-16mpg



mike

 

Whats up. Im new here, this is my first post in fact. I as just wondering how much a 20b motor will cost and if it bolts up to the stock RX7 tranny. Thanks.

 

about $3500 and it will bolt up although you need a flywheel for it since all 20B's are automatic....

 

Can you use the 13B flywheel??? Also can you guys help me out, I'm new to this rotary thing and I wanna build my own motor. I was wondering if there are any books or anything out there I can look at. I know regular engines and could build them all day but I never did a rotary so I need to learn. Thanks guys.

 

the stock mazda flywheels have a balance wieght cast into them, the automatics have a counter wieght, that bolts to a seperate balance wieght.

all the after market flywheels bolt up like the flexplate, and mazda never made a 20b flywheel



mike

 

wow, 300hp w/o even pushing it yet. i want one of those

 

yah, thats why i did it. i can have vosko speed without having to pull the motor out of the car....



mike

 

engine too heavy for a 510 huh? or how bout a rx3?

 

my turbo 2 wieghs 10lbs more than stock, and the only thing i did was ditch the ac and ps



mike