MAZDA GT cars - What engine?

vincentrx7 · 07-08-2009, 07:46 PM

I just wonder where they get parts like center plates and e shafts. Wouldn't they be underpowered compared to the Porsche's and V8 domestics like the GTO? I thought they were in the same class.

Smokey · 07-09-2009, 07:28 AM

they're definitely not down on power compared to the others in their classes.

They're tube frame cars, so as Phil mentioned they were able to place the motor wherever they wanted. (low and back). In the instance of the Speed Source car that Phil posted, you can see it's so low that they moved the adjustable sway bar to go over the engine instead of below.

I could get close enough to see that the motors are definitely PP, and are using rotor housings stamped with 13b, and they're using the 20b thick iron. The intake setups on the other Rx8 teams were almost exactly the same, so either the rules are pretty to the letter on that, or Speed Source is building and providing motors for the other Mazda teams....not sure on that one.

07-08-2009, 07:46 PM	#1
vincentrx7 20b FD Join Date: Apr 2008 Posts: 105 Rep Power: 18	I just wonder where they get parts like center plates and e shafts. Wouldn't they be underpowered compared to the Porsche's and V8 domestics like the GTO? I thought they were in the same class. __________________ Bobby '93 20b RX-7

07-09-2009, 07:28 AM	#2
Smokey Long Time Onlooker Join Date: Mar 2008 Location: Columbus, Ohio Posts: 31 Rep Power: 0	they're definitely not down on power compared to the others in their classes. They're tube frame cars, so as Phil mentioned they were able to place the motor wherever they wanted. (low and back). In the instance of the Speed Source car that Phil posted, you can see it's so low that they moved the adjustable sway bar to go over the engine instead of below. I could get close enough to see that the motors are definitely PP, and are using rotor housings stamped with 13b, and they're using the 20b thick iron. The intake setups on the other Rx8 teams were almost exactly the same, so either the rules are pretty to the letter on that, or Speed Source is building and providing motors for the other Mazda teams....not sure on that one. __________________ 93 Touring - AD coilovers, BBK, full exhaust, PFS SMIC, PFC