right now i'm just playing with idead but could it work and i not blow up on my first run? and how much boost could i run? also i guess i would need 3mm apex seals right?

 

You can do it, but you'll need both the 86-88 front and rear counterweights. You'll have to be careful with the tuning.

 

make that EXTREMELY careful. from reading stuff on the net, the most for a do it yourself thing is around 5 psi. But dont quote me on that. Ive also read that with very accurate tuning, ie every 10 or so rpms, it can be done. At least it hasd been tried.

 

make that EXTREMELY careful. from reading stuff on the net, the most for a do it yourself thing is around 5 psi. But dont quote me on that. Ive also read that with very accurate tuning, ie every 10 or so rpms, it can be done. At least it hasd been tried. [/quote]

I wouldn't do it without a standalone ECU.

 

well at least it has been tried. does anyone know of a link to some info about trying it. or at least info on putting different rotors in different housings.

about the tuning i have heard of a very reputable shop around hear somewhere. i guess i'll have to go and find it.

 

N/A has 9.0:1 compression vs. 8.5:1 for the Turbo.



Doesn't the Turbo have larger 3mm Apex Seals vs. 2mm (Not sure about that).



I'd stick a J&S Knock Sensor on there as a SAFETY MEASURE.

 

All 86+ rotaries have 2 mm seals. The 86-88 NA motors are 9.4:1. 89-91 TII rotors are 9:1.

 

You sure about that? I read that the 89+ are 9.4:1 and the 86-88 are 9:1 which is part of the reason for their increase in power. The 89+ also has slightly lighter rotors and the intake has been changed.

 

http://www.mazdatrix.com/faq/rotorwgt.htm

 

So the 89-92 NA rotors are the highest compression rotors availible for the weight? I also thought the FD rotors were lighter than ANY FC rotors? Hmmmm how come the S5 NA rotors are not more highly coveted items then?