Ronald E. Jacques

Has anybody ever thought about a CVT hooked to a rotary?

A CVT is usually limited by how much torque the drive bands can handle...Uhh, no problem there. I think Audi has one good for 250lb ft or so.

Based on throttle position and other sensors it could keep the revs at exactly the power peak all day and just vary the ratio based on the power demands. There could be a switch between sport and economy modes, although on mine it seems like the higher I rev it the better the mileage gets anyway.

I know you turbo guys are getting lots of torque, or at least enough that it doesn't matter that the peak is pretty high, but an N/A could use all the efficiency it can get.

I would be nice to be a pedal stab away from optimum acceleration at all times without an auto downshifting mid corner, and still have a fully auto mode for cruising. Really smooth, I'd think.

Just my thoughts. Please don't tell me " If I knew how to shift I wouldn't want a CVT". Yeah yeah I know. It just seems the rotary would be better suited to a CVT than piston engines.

fastrotaries

I think we've covered this also. and the consensus last time was that it would be too expensive. Personally money aside it wouldn't be a bad idea in a compact truck.

Railgun

Ronald E. Jacques

Yeah, Ok Ok. I'm not seeking scientific information thats already on record, I'm trying to have a conversation. If you don't want to be part of it, don't be.

88IntegraLS

If a CVT could reach the efficnency of helical cut gears, there would be no reason not to use them (for fuel economy that is). For pure performance I think they are the best system for peaky engines.

Railgun

This conversation has already been had. Hence the big *** search button that has already done the work for you. Just click it and merry christmas.

Ronald E. Jacques

^^^ So apparently you think I need permission from you to have a conversation. If seeing an old topic come up again is so damn annoying to you, why do you waste your time responding to it? A buletin board is more than just an encyclopedia. Is it so bad to be INVOLVED in a conversation rather than reading the transcript? If nobody else wants to have the conversation with me, the thread will just die and I'll search for more info IF I want it.
Just because on this forum everyone has access to every conversation that takes place doesn't mean people can't have them unless everybody else agrees they are necessary. Its the equivalent of walking across a room at a party and telling a stranger to shut up because you don't like the topic he is discussing.

Ronald E. Jacques

And thank you 88integraLS for joining in.

Railgun

I care because it's called forum etiquette. Why not bring up an EXISTING thread? That's why EVERYONE bitches about noobs starting yet another thread about the same topic time and time again. The forum as a whole suffers enough with general slowdowns from the DB getting bigger anc bigger with redundant topics. I care because you're ignorant to that fact. Ask anyone here and I think they'll agree. There are at least TWO other threads that you could have easily brought back up...

And I gave you a search on that. I say delete this thread since there's no reason to continue it.

epitrochoider

afterall, i posted this same exact question about maybe less than two months ago. don't get to mad, but, don't assume that since a thread is not really new, that is closed down. Plus, if u read it, then, some of ur answers might already be answered, and u could come up with better questions.

That aside, the thought of a CVT and a rotary combo makes me feel all good inside. 88IntegraLS is right though. Right now, the efficiency of variable rpm use, as of now, does not greatly over wiegh the efficecy loss of the mechanism itself.

SPiN Racing

Funny part... I think I posted an answer in that one too... if the FNG searched.. a LITTLE he woulda seen that... But then he wouldnt have gotten the attention it seemed he craved..

Sorry couldnt resist..

Ronald E. Jacques

I apologized to Railgun69 in a PM, because I didn't search and didn't understand that unnecessary posts waste space on the server, and he graciously accepted the apology without ever resorting to personal attacks. I overreacted and became defensive because of that big search button. It has been weeks since then, it really isn't at all necessary to continue to insult me. So let me sincerely extend that apology to the whole site in general and maybe this can finally be put to rest. I didn't rape anyones little sister you know. It was one, just one, ill advised post and it won't happen again.

Railgun

Yeah...and for future reference to the forum, you're hereby notified that my big *** search button is meant partially with humor.