Clutch engagement to small spur gear ?

[buzzkill]

Direct drive doesn't need any calculations for gearing, just the correction factor.

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 shop

direct is 1:1 rpm/torque , for brake HP you need to adjust the rpm based on the gear ratio. Simple calculation If I measure 2132 rpm and have a 5.7:1 ratio it's 2132x5.7 =12,152 RPM at the crank .

 

[mark35]

Nice project bud??
Btw.. The small gear is a pinion not a spur

 

[buzzkill]

Nice project bud??
Btw.. The small gear is a pinion not a spur

I stand corrected !! thanks

 

[buzzkill]

View attachment 66245
View attachment 66246

So what is this off of ? Losi or HPI and are they different ?

 

[Seandonato73]

Losi, and idk don't have baja stuff,

 

[buzzkill]

Losi, and idk don't have baja stuff,

ok so Losi has a 15mm diameter shaft to the clutch , Rovan is 12mm ,


can anybody measure a HPI pinion gear shaft diameter for me please ?

 

[DougStar]

ok so Losi has a 15mm diameter shaft to the clutch , Rovan is 12mm ,


can anybody measure a HPI pinion gear shaft diameter for me please ?

In half an hour ?

 

[buzzkill]

In half an hour ?

sweet thanks , cant find the info online !