K
First build thread can be found here:
http://www.ty4stroke.com/threads/another-pro-nytro.116477/
Version two will be a tube chassis mounted to the pro rmk bulkhead. a lot of this idea has came from jskattum606's propex build. Planning on using the stock clutches and getting custom jackshaft and driveshaft from http://www.industrialjigandfixture.com/ and building a belt drive setup instead of a chaincase.
I think the biggest problem with the nytro is the high center of gravity. so far I have a drawing in cad and the top of the new fuel tank is lower than the top of the nytro tunnel!!!! Should be a drastic improvement. Keeping the stock location of the driveshaft relative to the suspension mounting points of my cat float skid.
First I had to build a table to get the sled up on and take some measurments.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/nytro/03150A68-472E-441D-A35F-0E86AE0050E3_zpsfrv87zzn.jpg)
![](http://i418.photobucket.com/albums/pp269/Kennyspec/nytro/8A91D88E-83FF-4EBF-8991-53FF37B2CA8C_zpsxjxhb9sl.jpg)
Then transferred into cad and came up with this:
White lines are the old tunnel, green the new tunnel. hoping to make a fuel tank that is only about 5" tall and keep the center of gravity low.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled_zps78860299.png)
Now drawn in Bend Tech.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled2_zps98ad5796.png)
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled3_zps667dfcaa.jpg)
so far most of the tube is 1" .065 wich is probably overkill. Currently weighs 38lbs according to bend tech. changing the tunnel to 3/4" .035 takes the chassis down to 22 lbs.
http://www.ty4stroke.com/threads/another-pro-nytro.116477/
Version two will be a tube chassis mounted to the pro rmk bulkhead. a lot of this idea has came from jskattum606's propex build. Planning on using the stock clutches and getting custom jackshaft and driveshaft from http://www.industrialjigandfixture.com/ and building a belt drive setup instead of a chaincase.
I think the biggest problem with the nytro is the high center of gravity. so far I have a drawing in cad and the top of the new fuel tank is lower than the top of the nytro tunnel!!!! Should be a drastic improvement. Keeping the stock location of the driveshaft relative to the suspension mounting points of my cat float skid.
First I had to build a table to get the sled up on and take some measurments.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/nytro/03150A68-472E-441D-A35F-0E86AE0050E3_zpsfrv87zzn.jpg)
![](http://i418.photobucket.com/albums/pp269/Kennyspec/nytro/8A91D88E-83FF-4EBF-8991-53FF37B2CA8C_zpsxjxhb9sl.jpg)
Then transferred into cad and came up with this:
White lines are the old tunnel, green the new tunnel. hoping to make a fuel tank that is only about 5" tall and keep the center of gravity low.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled_zps78860299.png)
Now drawn in Bend Tech.
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled2_zps98ad5796.png)
![](http://i418.photobucket.com/albums/pp269/Kennyspec/Untitled3_zps667dfcaa.jpg)
so far most of the tube is 1" .065 wich is probably overkill. Currently weighs 38lbs according to bend tech. changing the tunnel to 3/4" .035 takes the chassis down to 22 lbs.