buzzkill
Mad?scientist
- Messages
- 962
- Location
- SLO California
On the Rovan it has a slotted spur gear that engages the clutch , how many different types are there ? or are they basically all the same ?
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Ok good , Im working on the interface to a Dyno for direct to motor HP readings and was HOPING there weren't 6,000 versions lolall same ?
ah...no..u can get hex...and the black bone style ?
Damn can you measure one ?? the slot size in the spur gear ? I have it at 5.3mm wide. I made mine 5.4 just so there is more error tolerance.Like mike mentioned, there are really just a few, but I wouldnt use the rovan for modeling specs, they have been know to be off.
Uhhh ya clutch bell !..no..u can get hex...and the black bone style ?..u mean clutch bell??
Thanks man ! I hate to make parts twiceYeah, when I get home I'll confirm measurements for you.
What is this off of ?? Mine has a diameter of 12mm !! not 15mm and the slot in the SPUR gear is 5.3mm , looks like I will need several adapters DAMN , actually I could make the slot wider for your size say 5.6mm wide and keep the 12mm diameter , I will have 2 large bearings on the shaft so there is no need to use the internal bearing on the clutch .
I think I have a solution , small adapters for various setups , I don't want to have to change out a clutch every time you use it.Or just go with a name brand clutch bell and carrier as all are 54mm at the stock size option. When you bolt up each engine just use a paired clutch carrier, clutch bell,clutch and housing...should be the same ....may want to incorporate adjustable engine mounts into the dyno.....and what sean posted looks like a clutch bell from a losi...my 2.0 looks just like his in the picture
No don't get me wrong I appreciate the input ! that is a good idea BUT having to switch a clutch every time to me seems like a waste of time , but this is really for fun , I don't plan on selling it. This i why I asked about how many variations there are out there ! it seems there are more than I thought. and In that case your idea sounds better all the time so.Then do what you think will work for what YOUR building
Ahhh duhh , I did not get that , dammit now I got design more chit lol ! GOOD idea ! I like it .
I will have a rpm sensor on the main shaft , for wheel ( brake H.P. ) dyno you will have to add in the gear ratio into the math, for motor dyno it is a direct rpm/load calculation. Correct me if I am wrong please .@buzzkill yes.... make your calculations around a set gear ratio and each engine will be the variable....if you have different gearing with engines at a unknown power how do you know if your going to have an accurate dyno? And don't forget you need an engine to calibrate it with....esp uses a stock zen that zen put out a claimed hp and he calibrates to that
Then factor in rear gear ratio. A direct engine to dyno it a 1:1 ratio. That's how we did all the engines at the machine shopEngine dyno im not sure of the math..but on a rolling bed they tend to put the car in a 1:1 ratio for accurate numbers.
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