OnlyOnThurs

Hmm it seems by others who post thier stories about thier rotaries here (and me driving my FB since april now) that these rotaries 12A and/or 13B's NA are just not that GREAT off the line...i mean after that its fast but 1st gear isnt all that powerful (is this true??)....anyways maybe its just me (because well i need to still fix a few things in my 82' GS...carb rebulid, new catalytic converter, etc.) but still is this really true you guys...if it is oh well I still love my FB.....just curious thats all.

Rx-7Doctor

iTrader: (13)

That's correct, stock ones are slow off the line. Remember as you increase hp, you increase torque. With that you need to get it to the rear wheels faster, thats where a light steel
flywhell comes in to reduce inertia. rx7doctor

Jeff20B

iTrader: (13)

Rotaries have less moving mass outside a 4" diameter (from the center of the E shaft) than a typical boinger. I'm not quite sure how to eloquantly add this info to this thread, but suffice it to say, a rotary will stall more easily at idle than a 4 cylinder under the same conditions.