93celicaGT2 wrote:
Mazda FE3? 2.0 litre DOHC 4 banger making 170hp, likes bolt ons and/or boost.
Mazda F2T? Sounds like E36 M3. build like a brick E36 M3house. Massive torque, will make more than enough power to turn a 1st or 2nd gen RX7 into death on wheels.
The MZR (from the Ranger, anyway) with ITBs, a proper header, 12:1 compression, and decent rods, has been proven to be able to make 250hp from ~5500 to 8000rpm. Stock cams and head. Upgrade the cams and the torque curve doesn't fall off that much.
If I could even get 80% of that, I'd be really happy. Unfortunately, the stock rods are made out of compressed boogers or something and they can't handle much RPM.
The engine I just took out (in both senses of the term) made a minimum of 140 ft-lb (crank) from 3000 to 8000rpm with a peak of ~165ft-lb. I loved teh bridge port, it makes torque like no street port can. It had awesome power in the rallycross 3000-6000rpm range and it had another 2000-3000rpm on top of that to handle tirespin. So find me an engine that makes that kind of torque and is that RPM-lenient... the only thing I see that's inexpensive, is rotary. So I'm just dealing with the heat issues for now until the connecting rod tree bears fruit.
I am, however, seriously looking into GM V6/automatic options. One can shift an automatic much quicker than a manual, and you don't have to do any cha-cha on the pedals to do it.