DemonRC
Senior Member
- Messages
- 1,846
- Location
- Houston, TX
Here's food for thought:
1) Our current engine crankshaft centers sit exactly 64.5mm off the chassis. 10mm of that is from the engine spacers underneath the fancover.
2) The 42/46cc crankshaft center is exactly 64mm from the bottom of the engine.
So there's a .5mm difference that can be madeup using a shim. So height wise we are good to go. Now for the gear plate mounts:
1) Current engines use a 58mm square pattern.
2) The 42/46cc uses a 96mm square pattern.
So all we gotta do is push the bolt holes out 19mm. This is perfectly doable and the engine crankshaft will sit in the same spot. The larger engine will sit exacty 21mm higher though (chassis to top of spark plug). Most of you guys that have built rollcages already have that clearance. Also, you have to change the location of the 2 bolt holes under the fancover. Last of all a larger clutchbell would be needed. I'm sure these can be bough off the shelf though. That's it. I already drew the gear plate up in Solidworks. I might get it machined sometime in the near future. This would be a nice alternative to the duel engine setup that LargeScaleRc has for their MCD.
1) Our current engine crankshaft centers sit exactly 64.5mm off the chassis. 10mm of that is from the engine spacers underneath the fancover.
2) The 42/46cc crankshaft center is exactly 64mm from the bottom of the engine.
So there's a .5mm difference that can be madeup using a shim. So height wise we are good to go. Now for the gear plate mounts:
1) Current engines use a 58mm square pattern.
2) The 42/46cc uses a 96mm square pattern.
So all we gotta do is push the bolt holes out 19mm. This is perfectly doable and the engine crankshaft will sit in the same spot. The larger engine will sit exacty 21mm higher though (chassis to top of spark plug). Most of you guys that have built rollcages already have that clearance. Also, you have to change the location of the 2 bolt holes under the fancover. Last of all a larger clutchbell would be needed. I'm sure these can be bough off the shelf though. That's it. I already drew the gear plate up in Solidworks. I might get it machined sometime in the near future. This would be a nice alternative to the duel engine setup that LargeScaleRc has for their MCD.