lite weight flywheel issues

[Rcnut24]

ok so I have a dtt-7 29cc 30 dnt. i have lost two DGI lite weight flywheels that just took the 2nd new 29cc 30 dnt motor out with it.......REALLY. the point to a lite weight flywheel is to get the motor to turn up faster.....Now I need a rev limiter????

what are guys running that doesn't take out the motors...anyone out there buid a flywheel that will hold up??

 

[spents]

where are they failing fella? you got any pics,
might just be a case of they were over done on the lightening, or you got really unlucky,

 

[Rcnut24]

where are they failing fella? you got any pics,
might just be a case of they were over done on the lightening, or you got really unlucky,

I got to pull the cover off still. tommorrow i'll get a pic uploaded... I did not take pics of the first one but it blew aparts between the web from the center to the area with the fins

 

[Rep732]

The solution is run stock flywheels, the gain is marginal if not pointless. Tbh I bet the reason why your breaking flywheels is because their not balanced. A turbo can spin up to 100k+ rpm and not grenade, you have a balance issue.

 

[spents]

I got to pull the cover off still. tommorrow i'll get a pic uploaded... I did not take pics of the first one but it blew aparts between the web from the center to the area with the fins

a picture can tell a lot, one of us may spot something that could help diagnose why it flew apart

 

[Rep732]

Or a rock got in there and blasted it to bits. @Rcnut24 what measures are you taking to prevent rocks and debris from being sucked into the flywheel? Outerwears, mesh mod? Anything?

 

[Rcnut24]

The solution is run stock flywheels, the gain is marginal if not pointless. Tbh I bet the reason why your breaking flywheels is because their not balanced. A turbo can spin up to 100k+ rpm and not grenade, you have a balance issue.

I thoiught that threw with the first one. I balanced the second one...... prop balancer for my aironotic addition

 

[Rep732]

It is cast aluminum and it could be poor casting. I mean we can literally dive into twilight zone with this. Could be a rock strike, harmonics of the engine at the right frequency, took too much off the flywheel and left it to destroy itself. This is why I personally stayed away from those.

 

[Rcnut24]

Don't think i'll ever figure it out. Was hoping someone had the magic answer lol to be honest.

 

[Rep732]

We do! Get rid of it and go back to stock

 

[Seandonato73]

There was a guy a while back with the same issue, the flywheels were just poorly made.

 

[1000Gsxs]

the same for me, i went back to stock flywheel and no more breaking. Same engine, same area, same driver!!

 

[Clubin]

There is so much Chinese crap out there. If it says zenoah in it you have a chance for good parts.

 

[crucialRC]

Bartolone and Roostertail both make awesome lightened flywheels. Those are the only 2 I would run. All else are ticking time-bombs.

 

[Rcnut24]

this is it.

 

[spents]

this is it.

View attachment 89051

thats impressive fella, yer flywheel flew ,
probably been overdone on the cross drilling and it just let go then,

 

[Rcnut24]

Two out of four blew apart just like this. The third was damages from pull cord coming apart and the fourth is still on the other dtt-7 truck.

 

[Rep732]

I'd move on and just avoid those. Definitely not worth the damage.

 

[Rcnut24]

agreed...

 

[Rep732]

You seem to like these, can I ask why? 2 out of 4 isn't good odds.