Was speaking to Mark this morning Flanno and he says the new button and head WILL retro fit the Mg66..Apart from maybe being a gram or two lighter though not sure why you'd want to bother.I did press him to get them made in black though with the MG logo..then I'd be interested..watch this space for that..

he also said the crank would fit too but probably giving a little more bottom end snap at the expense of a bit of top end.I don't think my Mg66 needs any more bottom end ,and certainly not at the expense of the never ending top end

agree with all above

as typical boys and their toys, I'd still like to try it...the new button and head that is, to make up my own mind...but has to be black with red tho

I'll be interested to see what grizz1 has to say after he's run in the GX II and run it back to back against the MG66 in his 808..Personally I just can't see it being anything to tempt me to change motors.It would have to be a LOT better than the MG for me to swop.The MG is just so easy to drive.Bottom end grunt without the need for late engaging clutch..and top end forever..plus 11m30+ run times and that's with a 7mm venturi.I like the linear delivery too..none of that late surge the 7 ports give..just smooth all the way through the range.Enough to wheelie my 808 but with little or no wheelspin (well unless I want to mess around)I suspect the toro-nero's for example might give a fraction more overall power but that's no use if you can't get it onto the ground.

Let's hassle for a new style head/button in black n red though..

Hey guys, I talked to Alan Burton last night. When he gets his in, he's going to do a video one the engine. This includes disassembly and inspection, break in on the stand, car tuning, etc.

Oh you'v just reminded me,

I'm still yet to do a set up and tuning video someone asked for months ago.
OOPS. Been very busy and still trying to line up the video camera.
When I'm ready, the video camera isn't available and when it is, I'm too busy, so we have trouble gettin together at the same time....it will be done tho .

One day

If everything is the same tolerances as the GX (which I imagine it is), then I will be very interested to see how he manages to get the rod off a brand new motor before it is run without causing any damage

wrap a zip tie around the con rod with the back plate off and voala...or however its spelled.....

i think they may have compensated for that on the crank pin grizz, lets hope

personally, I have a tool that I can pop them off in a matter of seconds. Hit up 22racer on these forums. I think he sells them for $20.

alternatively, use a zip tie like Robert said, but grip it with a pair of needle-nose pliers, then twist it around the pliers. when the zip is short enough, place something between the pliers and the case, then twist harder. The conrod will come off.

That won't work on a brand new motor, not unless you wrench it way harder than you should be. After a gallon or so, no sweat.
I guess it depends if itīs your motor or someone elses

Ahh, a secret tool eh. Nice - any pics ?

I probably have a gallon and a half through my GX on the buggy and I still can't get the rod off.Wanted to look things over and clean it up good but too tight.The wear seems to be great.The bearings are great.The engine is solid as a rock.I would like to see this crank removal tool though.

Regardless of how you take apart a new Gx motor you must secure the crank from moving out. Putting a clutch on is probably the easiest thing to do.

There is a pic of my tool quite a few pages back.

Rex

...just wait till you decide to put ceramics in it.....ceramics in the GX5R makes the motor super wicked....we have a stock 1, 1 with ceramics and 1 with a eb mods crank in it....the ceramics motor spools up as quick and has just as much top end as the modded crank motor....i have never ran a motor with ceramics in it( cause i always thought the steel 1s were great)once i put in the ceramics, it was like night and day

So when is the new GO engine going to be in the US this one looks good

Should be here early March!