dunno, mine's the 97 mazda comp catalog, or hell maybe theres 2 different ones?



7.5 should be like the bonneville/757? rotors. thats the 81-86 bridgeport twin turbo engine, 520hp@1bar and 8500rpms, 2xht20 turbos. not sure what apex seals they ran, but it doesnt seem like it was all that reliable....

 

I just bought $600 in bearings, hook it up MaxT LOL



I could use some of those 7.5:1 rotors too !!!