MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

Go to Thread: Previous•Next
Go to: Forum List•Message List•New Topic•Log In


pac11adp
Mike Kaban
Powell River B.C. Canada
(7 posts)

Registered:
03/03/2009 09:49PM

Main British Car:
78 MGB Mazda 12a rotary

Thanks for the help a few months ago here is the completed Mazda 12a Rotary project
Posted by: pac11adp
Date: July 11, 2009 07:16PM

I posted here back in march asking about this swap... anyways it turned out great, lots of power and way more power down low than I thought it would have. 2 resonators, big pipe and a free flowing muffler, pretty deep sound for a rotary. Cut the front cross member on an angle and plated it in with 1/4 " steel, engine really low and as far fwd as I could. Shifter ended up in almost exactly the same spot as stock... just had to make the hole a bit bigger. Solid front mount, rubber trans mount no vibration felt anywhere :) Just need to put some hose on the heater now
http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9385.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9387.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9388.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9389.jpg



Edited 1 time(s). Last edit at 07/11/2009 07:18PM by pac11adp.


pac11adp
Mike Kaban
Powell River B.C. Canada
(7 posts)

Registered:
03/03/2009 09:49PM

Main British Car:
78 MGB Mazda 12a rotary

Re: Thanks for the help a few months ago here is the completed Mazda 12a Rotary project
Posted by: pac11adp
Date: July 11, 2009 07:19PM

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9390.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9392.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9393.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9395.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9396.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9397.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/SolidFrontenginemount.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9375.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9380.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9381.jpg

http://i73.photobucket.com/albums/i231/pac11adp/MGB%2012a/IMG_9369.jpg


Bugeyev8
Brian Marshall
San Leandro CA
(32 posts)

Registered:
12/16/2008 08:53PM

Main British Car:
1960 Bugeye, 1974 MGB,Triumph TR8 1.2 115 Hp 1275 in the Bugeye, Nissan Ka24DE in MG

Re: Thanks for the help a few months ago here is the completed Mazda 12a Rotary project
Posted by: Bugeyev8
Date: July 16, 2009 12:45PM

those mufflers will not last long on there with the heat from the rotary, when they burn out use the borla ones or the ones with vocanic rock inside, Don't ask me how I know...

you will also need to run a factory Mazda Roraty oil cooler if you want that engine to live
Get Your BritishV8 T-shirt by clicking here


pac11adp
Mike Kaban
Powell River B.C. Canada
(7 posts)

Registered:
03/03/2009 09:49PM

Main British Car:
78 MGB Mazda 12a rotary

Re: Thanks for the help a few months ago here is the completed Mazda 12a Rotary project
Posted by: pac11adp
Date: July 18, 2009 03:44PM

It's a '85 12a. In 84 and 85 mazda used an oil to water cooler under the engine oil filter. We're running pre mixed 2 stroke oil in the fuel instead of the stock oil injection so that lets you use synthetic oil. Since I'm more concerned about engine life and power and not too concerned about the emissions we're running a 160 thermostat. The temp gauge hardly moves.

I agree with you on the 2 bottles though. I told the muffler shop that glass packed bottles won't last they didn't believe me. The muffler is not packed and is a used one out of the RX7.


Go to: Forum List•Message List•New User Registration•Log In
Sorry, only registered users may post in this forum.