There is a lot of different types floating around in the ebay etc. It's sometimes hard to define what engine you have but in any case there should have been an instruction letter following your engine telling the exact Go part# and from there you can determine the ports etc.

Usually if it's grey/silver case and the heatsink is not milled it's RTR/Sport engine meaning 3port. If it's black case then it could be some "special" version as I know there are some models with up to 8 ports I believe.

Were did you get the engine ?

It has a gray/silver case and it has a pull start so i/m assuming its a sport engine then? So 3 ports? Can I get any instructions/parts lists anywhere then?

Thanks very much for the help so far!

Why is plugging the exhaust bad for the plug?

If it's pull-start then it's Sport/RTR and most probably 3port. As you are based in UK you can contact your local shop or disti. Majority of the engines use same parts across the line so you should be covered. For sure sleeves are different etc. Does it have the UK disti serial# on the case ? Did you buy it used if you did not get the leaflet or was it coming with a car ?

I bought the car second hand so I got no info on the engine at all. I'll have a look for the serial no.
Thanks again for your help, i'll pay a visit to my local go dealer and enquire further!

TCM26, the 5 port is very stought on bottom, and on track is just about there with the C6 from what i have seen if not all over it, i have been recommending the GO pipe 0801 for the GO engines, this pipe has great bottom end and top, and for a 5 port and pipe is still less than a C6, i have standard buttons as well.

Also, the 7 port is very good also, alot of guys that are use to running v specs are going to this motor, it is smooth on bottom and has endless top, currently i am hooked on this motor with the GO pipe and 7mm insert

Besides the obvious whats the difference between the 3r and 5 port .21 motors? I think my biggest issue would be tuning? Does the 5 port require more work or does either one take the same amount of time to tune. What are the power advantages? Im gonna use the dynamite 086

Thanks in advance
Jake

Whats a good throttle spring for these go motors?

Also are the 1.1 clutch springs ok for the 3p rspec in a truggy?

hey Jake,

both engines are the same to tune the 5 port has alot more bottom end than the 3r and the top ends are very similar. the 086 pipe is a pretty good match with the 5pt but you really need to go to the go 2047, 0801 or an 053 pipe to liven up the bottom on the 3r.

both engines have a smooth power band. the 5 pt is a really good motor for a truggy but the 3r struggles a little in a truggy. but just to confuse you I personally think that the 7pt is the best alround with a 2047 and a long header it has as much bottom as the 5pt but still has more top with really good millage- but thats just my opinion

Adrian

I have to disagree with you there , stopping the engine by the flywheel is not the best , i prefer to block the exhaust over the flywheel .. Ive never had plug problems as a result of plugging the exhaust..

Burning up plugs can be

wrong head clearance
wrong fuel
incorrect tune ( lean )
rod or bearing wear
wrong plug type

can you tell us what the plugs look like when they die ? IE is the element pushed in ? Grey or while in colour ? etc

M

do you mean a throttle return spring ?

1.1 is fine for the R Spec .. depends on the surface you run on and tyre choice too.. as well as shoe type ..

yea ,srry throttle return spring.

the track is mostly dusty , but gets wet down on race day a bit.
and im usen crime fighter mt.,kyosho blue aluminum
thx

Hello mugen,
So is it advisable to put GO .25 6 Port and a 0801 Pipe for the Truggy?

Thanks,
Jojo

Hello Sir,
I too have the same issue, I have GO .21 7 Port, and I do stop the motor by blocking the exhaust port. But i still have "burned" (I mean, really, really black) glow plugs. I have only use OS A3 plug. Would you suggest OS 8 plug?

Thanks,
Jojo

Are these pipes the same?

redline femca 0801
go femca 0801
aplus femca 0801