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Dd50 rotory kit

Posted: Mon Jul 06, 2015 1:54 pm
by BJM3x96813
Is there any rotory kit available for dd50 motors? Are they any good? And where could I get them?

Re: Dd50 rotory kit

Posted: Mon Jul 06, 2015 9:20 pm
by Johnniespeed
What is a rotary kit ? Mazda RX7 has a rotary engine. Disc brakes have rotors. Most large cities have rotary clubs.
Better to ask and gain knowledge than to remain silent and ignorant.

Re: Dd50 rotory kit

Posted: Mon Jul 06, 2015 10:41 pm
by motormike
Internal rotor kit from treatland.tv for Honda dio
https://www.treatland.tv/honda-DIO-HPI- ... -coil.htms

Re: Dd50 rotory kit

Posted: Tue Jul 07, 2015 7:23 am
by Downsouthdio
Read the reviews on there

Re: Dd50 rotory kit

Posted: Tue Jul 07, 2015 8:41 am
by Johnniespeed
Ahh, now I see.
My dirt bike buddies used to call that a PVL stator kit. Reduce rotating mass, increase crankshaft acceleration speed.
On the automotive side, Smokey Yunick was a big promoter of reducing rotating mass, he had a pretty good handle on increasing performance, dont think he dabbled in the two stroke world though.

Re: Dd50 rotory kit

Posted: Tue Jul 07, 2015 1:24 pm
by BJM3x96813
graphite9 wrote:ive been down this road, the only kits that work are taida, daytona and koso. Koso and daytona kits, if you can get them are $550-700. Taida is $299 and I have a few coming in to test. Someone in hawaii is selling the MVT modofied to fit, but what he doesn't realize is it won't fit. People should install things personally before advertising they work. :)
Yeah I can get my hands on a taida. Any feedback from them from anyone? And do you need to mod a dd50 block for it to fit?

Re: Dd50 rotory kit

Posted: Fri Jul 10, 2015 9:32 pm
by maddog
If you shave the stator bell you will lose top end, if you use a billet PG front face you can still gain off the line and top end.

Re: Dd50 rotory kit

Posted: Sat Jul 11, 2015 3:58 am
by deuce217
so the lighter mass helps with torque off the line and at higher rpms? Sign me up..

Re: Dd50 rotory kit

Posted: Mon Jul 27, 2015 1:58 pm
by 85stroka
graphite9 wrote:ive been down this road, the only kits that work are taida, daytona and koso. Koso and daytona kits, if you can get them are $550-700. Taida is $299 and I have a few coming in to test. Someone in hawaii is selling the MVT modofied to fit, but what he doesn't realize is it won't fit. People should install things personally before advertising they work. :)
Interesting....pretty sure I saw someone post that it fit, personally have seen it and done it , the only real issue is using it for air cooled requires a SMC rex or rexy fan as the stock fan is too wide and will hit the shroud, the original bracket failed almost instantly , the new custom ones shouldn't be a problem, but you never know all things fail especially experimental ones

Re: Dd50 rotory kit

Posted: Mon Jul 27, 2015 10:22 pm
by 1man8scoots
Zombie on kymco forum did the mvt many years ago on a sc10as. It absolutely does NOT fit with out fabricating a collar. Will NOT fit with out fabrication.

Re: Dd50 rotory kit

Posted: Mon Jul 27, 2015 10:54 pm
by 85stroka
Keyway are to set timing, but not needed, we have had the "taida" version since last year July I think? It's not bad but there are issues some major some not
First is the timing on the mag is set advanced, idk why but the"trigger" point is about 3/8 to 1/2" forward of a stock mag.
Second is the reliability, some last 6 months most wont, some fail with in 5 miles, how many kits are here? I personally brought in 30 and sold all but 1 which I used for mock up.
Third the fan that ones with it will explode on initial use- don't bother trying
Forth no timing adjustment, can slot the bracket or the pickup or both, I even attempted to have brackets made to do this

Re: Dd50 rotory kit

Posted: Mon Jul 27, 2015 11:41 pm
by 1man8scoots
What do you mean by forward of stock trigger

Re: Dd50 rotory kit

Posted: Tue Jul 28, 2015 12:14 am
by 85stroka
1man8scoots wrote:What do you mean by forward of stock trigger
Imagine the stock trigger bump on the mag being 3/8 to 1/2" longer at the beginning, that would advance the timing "X" amount of degrees and that's exactly what they did on taida kit

Re: Dd50 rotory kit

Posted: Tue Jul 28, 2015 12:17 am
by 85stroka
And for the non believers , you need to realize there are others trying to advance dio also........
Image

Re: Dd50 rotory kit

Posted: Tue Jul 28, 2015 1:10 am
by 1man8scoots
That's not adjustable? I'll have a taida here soon, it's nice to know the short comings before I install it on an engine I'm not going to run before it's shipped.