Well, I have seen in the late 90s/early 2000s a side ways mounted OS engine in an onroad car. This of course was an early generation 4 stroke for rc.

This thing was able to leave a 4 wheel burn out mark in first through first and chirped into 2nd gear.

Lets see a 2 stroke do that. and I don't mean wait for the 2 stroke to come

up on the pipe. I mean from a stand still.


This was at Antioch, Ca Delta RC Raceway when they had a functioning onroad

course. (Now I think it is the dirt oval course. (Onroad surface is under the dirt)

I think that if a nascar engine can spin to 10,000 rpm with +4" pistons and 2.2" valves and an F-1 angine can spin to 20,000 with close to 4" pistons and +/- 1.5" valves, there's no way that a +30,00rpm engine with a 16mm piston and 5mm valves can't be made. to me its just a matter or effort.

xe

Well, look at the scale speed.

A 2 speed gearbox could help..

Come on. You can do it??

Speedworks what clutch did you use to get it to engauge at such a low RPM, And what are you doing for cooling for the 52 engine? thanks

I use sportwerks springs, think they are around .9 thick.. Along with heavy clutch shoes, this setup will engauge very quickly. As for cooling, i use a fan setup thats driven off the flywheel.

Are you using the Losi 4 shoe clutch?

Nope, tried the losi clutch and it didnt work out. So i machined a custom steel 3 shoe setup, works great and idles awesome.

Can you show a picture or describe whats different about the clutch.

How is gas cheaper? dont these use the same nitro fuel?

I use airplane nitro fuel, 15% nitro 18% oil at a cost of $20 a gallon. Car fuel here for 30% nitro is $30 a gallon. Now i have also tried my own custom blend of 30% car fuel with extra oil added for 18% oil content. There really is no major difference in the performance of the engine. So i now just stick to the cheaper 4 stroke nitro fuels.

I will be trying a 2 speed gear box here this winter. I do think it will help out allot with clutch heating issues.

In the Late 90s, these existed for a short period of time.

Here is a video of a Tamaiya with a 4 stroke in it.

http://www.youtube.com/watch?v=UHqt_5K9vcs

http://www.youtube.com/watch?v=-uddN...eature=related

Does anyone know all the companies that make 4 strokes in the .20 to .60 range? I know saito, magnum and o.s., but are there anymore worth looking at? I am running in the electric ranks now but would like the challenge of trying a 4-popper

Thunder Tiger,, they make good engines for a great price. Have a .75 waiting to go in the losi 8T 2.0

The 4 stroke SC truck is just about done


OS 40cx motor, old Sinyih buggy, 22 tooth clutch bell en route, aluminum heavy shoes en route, light springs en route, Throttle linkage is set with enough adjustment for any clutchbell, looking for a cheap SC body and some more parts to come in and It'll be a runner.