Sharkey
Well-Known Member
- Messages
- 778
- Location
- Abbotsford BC Canada
i recently purchased a brand new traxxas xo-1 rolling chassis from fleabay. since they came out ive wanted one for a project, and being the last chassis i used for an odd project is now 10 years old and is pretty worn out i figured now was a good time.
so its not going to be any old nitro engine. a couple of years ago i got a chance to build an os fs40s-c 4 stroke. these motors were originally built around 12 years ago, they are an airplane 4 stroke that was converted for cars and trucks using a different profile camshaft and stiffer valve springs. they never really got popular because they werent a bolt in and had a fairly low power rating and max rpm. its been well proven that with a proper header and a carb change can double the output and increase the rpm. ive had mine running in a nitro tc3 for a couple years now, it pulled as hard as the .21 i had in it prior, the downside was lower rpm and top speed. ive got mine to consistently hit 26000 rpm, so its now not giving up much to a .28, and has far more torque.
ill be clear, my intentions arent to go 100mph, i know its not going to happen. i didnt choose the motor to go into the car, i chose a solid platform to put my 4 stroke into. the car is well designed, i liked the layout a lot better than the 1/8 scale gt cars.
for now, ive gotta brush up on my cad drawing skills. i have a cnc mill at my disposal and will be making a lot of custom parts for this.
so its not going to be any old nitro engine. a couple of years ago i got a chance to build an os fs40s-c 4 stroke. these motors were originally built around 12 years ago, they are an airplane 4 stroke that was converted for cars and trucks using a different profile camshaft and stiffer valve springs. they never really got popular because they werent a bolt in and had a fairly low power rating and max rpm. its been well proven that with a proper header and a carb change can double the output and increase the rpm. ive had mine running in a nitro tc3 for a couple years now, it pulled as hard as the .21 i had in it prior, the downside was lower rpm and top speed. ive got mine to consistently hit 26000 rpm, so its now not giving up much to a .28, and has far more torque.
ill be clear, my intentions arent to go 100mph, i know its not going to happen. i didnt choose the motor to go into the car, i chose a solid platform to put my 4 stroke into. the car is well designed, i liked the layout a lot better than the 1/8 scale gt cars.
for now, ive gotta brush up on my cad drawing skills. i have a cnc mill at my disposal and will be making a lot of custom parts for this.