ChApS

Does anyone have this engine?
Techwell .12 3-Port Rear Exhaust, SG-Shaft Engine.

If so what are you're comments as im getting one as a club runner for my kyosho fw-05rr.

ChApS

This is the Fetures .

Ø 12 mm SG Crankshaft is perfectly balanced performing excellent scavenging and is extremely resilient.
● Slide Carburettor: Aluminium alloy, 2 needles, Ø 5.4 mm for high performance.
● Removable Head button for replacement of standard and turbo glow plugs.
● Head button with silicone O-ring for excellent dust protection.
● Sleeve and Piston: true ABC construction.
● Rear Exhaust.

SPECS
Cubic Capacity
2.1 c.c.
Ports
3
Max. Power
1.38 H.P.
[R.P.M. (M.P.) 36,000 rpm
Practical RPM Range
4,000-38,000 rpm
Stroke
14.00 mm
Bore
13.80 mm
SG Crankshaft
Ø 12 mm
Carburettor
Ø 5.4 mm
Slide
Exhaust Type
Rear
Glow Plug
Standard
Pull Start
Non
Weight
236g

aussie racer

iTrader: (-1)

We have the techwell engines here in australa and a local guy at our track runs one and they are very impressive for a pull start engine and the non pull start engines are goers too.
where overseas can yu buy them....

ChApS

yeah i live in aus to i got the techwell R12103T(TURBO) i think thats it.

ChApS

Got a problem i ran in my engine to the instructions but now it is over heating very quickly under 5 minutes.
Does anyone know the problem or have had this same problem.

In a couple of seconds it's hot.

nitrodude

iTrader: (8)

Sounds like an air leak to me.

Chris West

I cant see it being anything else

ChApS

No airleak i put new fuel line in and it getting very hot and theirs no problems with fuel consumption.
So im thinking it could be my fuel.

ProudSavageOwnr

just incase you didnt know but the techwell engines are just a cheaper brand of the navorossi's they are exact duplicas and these engines are crazy fast especially in the COLT that we got here in aus this car is around 1200 grams heavy belt driven and the techwell smokes up the wheels like MAD....this engine is rocket fast....if u want to buy 1 i highly recommend it

moot

err... there not a a rossi copy. pull one apart and you'll see.besides from the fact that rossi never made a rear exhaust pullstart (that i know of) they do go well for a short period of time though (if you can tune it properly cause there prone to over heating)

ChApS

It's not a pull start it is the race version R12103 with the turbo head and now the turbo plug.
As it is in my fw-05rr for pro nitro.

I know that the techwell engines are fast well about the same top end as nova's and o.s. (just not alot of torque)
But thats not the problem the engine it is overheating in under 5 minutes.
At the moment i have put a o.s tz head on it to reduce the heat and it looks to be going fine.

i have checked for:
Fuel
Airleaks
cooling
dirt clogging
tuning

But i think it is the head,i wont be able to test it properly untill this sunday.

moot

a mate has the 5 port and the 3 port 'pro' motors.

the 3 port goes heaps better than the 5 port but the pullstart motors are just as fast as both of them.they all suffer from poor bottom end power and heat.

heres my pullstart car.

moot

drive it for 5 minutes,make sure it has half a tank and then tune it.also see if you can find a rossi carby to put on it. its like night and day

ChApS

yes i have a 3 port bump start engine and seem to run nice esspecially with the turbo plug.
How long did your mates engine last with heat. As i am only getting around 5 minutes.

moot

he'd be lucky to get 5 minutes.its how you tune them. my pullstart did a 10 minute final,and 5 minutes later did a 30 minute final. it come off the track like it would have gone for all day