Marcel Burkett

I am wondering if I can use bevelled rotors with my present semi peripheral configuration , or would there be too much overlap ?

Lasse wankel

Go for it! I'm sure the P.R guys do it. It's just a matter of tuning and carefully ported and built short block.

/Lasse

diabolical1

iTrader: (3)

+1.

would love to see pics.

fastrotaries

wait...are you going to also run the side intake ports? I don't see how you would really gain much. If you close them? They would be a hell lot lighter though. Worth a shot. I for one would love to see how it works.

ronbros3

HI! Johan, Ron here.

Marcel Burkett

I dont understand U here , what I have presently is a larde street ported motor with a pair of 1.5" perephial ports , I am thinking about cutting the rotors to mave the side ports open earlier .

diabolical1

iTrader: (3)

question: in terms of port timing as the engine stands now, which open first, the side ports or the peripherals?

Marcel Burkett

I think the side ports open first , i'll be able to confirm that soon !

diabolical1

iTrader: (3)

if that's the case, then beveling should be fine, i think. for some reason, i suspect if the peripherals opened first, then you might get some kind of crazy "early-to-mid-RPM-stumble"-thing happening. it's just a feeling, not quite a theory since i have no basis for it. maybe one of the engineer types can confirm or dismiss it. personally, i'm curious now.

you may want to shoot a PM to Ito or the gentleman that built that semi-peripheral 20B a while back - i can't remember the username, but if you would like i could help you look it up. speculation cannot match actual experience with something like this, no?

Marcel Burkett

Correct , i'll appreciate what ever help I can get !

diabolical1

iTrader: (3)

it was GTORx7's thread. so you might want to PM him as well to see if you can get any insights to your question. all that i ask is that you share whatever you find. fair?

Jason

Marcel Burkett

Sure no problem , that's more than fair.