9724VF350
Tractor Guy
I've recently got into piddling with VE's out of necessity, (not having time to wait on shop's) mostly putting seal kits in stock tractor pumps. I've resealed more Roosa Master and CAV pumps than I can count, so while it's not a new experience for me, it's a different pump.
Wondering if anyone that's in the know would mind sharing some info on making them go faster beyond the typical fuel pin, fuel screw, and governor spring.
Some pumps it seems from the factory are 1/2 turn from runaway and max out at ~150 hp, others are 3 turns from runaway and hit 250 (all 12mm). Why? is there some fulcrum lever geometry differences that make a difference?
Different cuts on the distributor end of the rotor. Differences and effect?
The half dozen or so that I've been into all seem to have the same cam plate, I'm told that the pump used on RGT engines have a faster cam plate.
Anything else that I'm not seeing that's important.
I've got a couple 205 pumps to tear into, one of which is for my own engine. Looking for ideas on what changes to make.
Wondering if anyone that's in the know would mind sharing some info on making them go faster beyond the typical fuel pin, fuel screw, and governor spring.
Some pumps it seems from the factory are 1/2 turn from runaway and max out at ~150 hp, others are 3 turns from runaway and hit 250 (all 12mm). Why? is there some fulcrum lever geometry differences that make a difference?
Different cuts on the distributor end of the rotor. Differences and effect?
The half dozen or so that I've been into all seem to have the same cam plate, I'm told that the pump used on RGT engines have a faster cam plate.
Anything else that I'm not seeing that's important.
I've got a couple 205 pumps to tear into, one of which is for my own engine. Looking for ideas on what changes to make.