Thanks for the info Giz. Sounds like it's all it's cracked up to be

Good info on the clutch set up too. What you said about the 7 Port with the 3 x 1.1 springs is spot on. It does sort of wind up a bit before things happen, but with all 1.0's on a grippy track it's bog city. What you have might be the perfect set up for my home tracks, I will give it a try (although the 7 will be relegated to my hooning / practice motor soon ).

The MG66 power band sounds similar to the Stage 5 5 Port, but with a lot more on tap if required I'm thinking. Being similar, you might like to experiment with 3 x alloy shoes with 2 x 1.1 springs and 1 x 1.0 spring. This works a treat on my Stage 5. I ran all 1.0 springs with alloy shoes for a while on the 5, but the two 1.1 springs just give it a bit more snap without getting it out of shape. I'm guessing the extra power of the MG66 might dictate the use of the 3 x 1.0 springs that you have installed however . Worth a try though, but you might have trouble keeping the front down - he he he.

giz it seems you are having a good time running your new motor in

i run all my motors in this way now start her up let it settle drop it sraight on to the ground figure 8 7-8 tanks then start a race tune : this has worked for me quiet well and has been succesful

Hey Matt

Have you run the GX 5 Yet ? Curious if you notice any changes in the carb ..

M

Curious, it's the same carb that is on your motor the MG66

I'm thinking it has the slightly shorter LSN. Guys who have been running the longer taper LSN (like most of us "down under") will probably find a slight change in the tuning required from what we have been used to.
Maybe something else Massive has up his sleeve, but I think that's what he's getting at

not as yet mark i will start to run it in on wednesday looking forward to it
it will be well suited in my truggy im thinking

Here in Canada, there is no problem to get Go Engine parts and New Go Xtreme Engines Offroad 2009 from FX Racing Hobby Inc. ( www.fxrhobby.com ) and some Canadian dealers.

FX Racing Hobby Inc. is the Canadian distributor of Go Engine and they have all parts in stock.
www.fxrhobby.com/blog

If it may help you !

Dang - I'm feeling the US is being left out here - We have no official GO Tech Dist it appears and the RACEFACTOR.com & RACEFACORINDUSTRIES.com domain name registrations have expired....

I am excited about the new motors - be nice if we had local resources to get'em.

Some enquiries have been sent to FX Racing Hobby Inc. from American customers.

After discussion with Go Engine Manufacturer earlier this week, FX Racing Hobby Inc. will supply in Go Parts and Engines to clients from USA until the USA Distributor be back in business.

Hope it will secure GO Engine customers

New GO Parts and Engines are available in North America.


If you don't see the part you're looking for on the web site, send us an email, we probably have it in stock !

Best regards,

Pierre
Pierre Barbeau
FX Racing Team
FX Racing Hobby Inc.
[email protected]
www.fxrhobby.com
514-346-9570

Well boys..10 tanks through the MG66 so far and this thing is an animal..pulls the lighter clutch spring and higher gearing without a hitch..smoooooth down below and screams at the top..best of all worlds and I haven't even begun to lean it yet..I am just in LOVE with this motor..tomorrow is forecast sunny and 28ºC and i'm being paid and fed to run in the motor all day and generally be a hooligan...F.A.B mr tracy!!!!

I'm about to finish break-in of my Caster MK2, and just started tuning it.
Whats the general rule with this mill, lean on bottom and rich on top?
I really havent done much with HSN, did not take much at all, it screams with a nice trail of smoke. Bottom end on the other hand hesitates.

The Caster MK2 are supposed to be basically the same as the GO 5-port.

The bottom sounds nagging, like it should be on the lean side, but my attemt to rich it just made it worse. Temp doesent indicate lean setting either.

It idles great, and responds fine, but seems to lack some power.

I'm running it with Dynamite 086, would JP2/4 be a better alternative or should I rather go for a torque pipe, like the Nova 9901?

Wicked mate - You live for days like that eh Glad to hear the motor is what we expected. It sounds like a real beauty.

It is pretty much a GO 5 Port in different clothing.
Generally the GO's like a fairly rich top and a little leaner bottom, but that will depend on what low speed needle you have. I would suspect you have a standard low speed needle, so you could run the top end a little leaner then the GO's perhaps. If it's only new and you don't have that many tanks through it, it will still be tight. This pinch will sap a bit of performance. Don't lean it too much trying to get it to perform until the pinch eases, or you will possibly do some damage. On the GO 5 Ports (gen 4 and 5) the metal pinch is with the motor until 1.5 - 2 gal. Your motor may be a little different, but I think you will find it will still be tight and this is what is causing it to seem sluggish. Be patient with it. It will loosen up all of a sudden and then run great.
What clutch springs are you running. It's not loading up too early and getting a little boggy ??
The Dynamite 086 should be sweet. The 5 Ports run great on the 086. The other pipes I would recommend in order of preference would be the new GO 2072, or the GO 0801 (both have longer headers than the 086). The JP pipes don't work too well on the GO's, so they would be the same on the Castor I would think. They are a bit flat, and economy is not great.

Thank's, I'll give it some more time.
I thought of the clutch as well, but its brand new RMV, and it works fine.

My man you are telling the truth! A whole U.S. market waiting for these engines. Our official GO_TECH distributor is a joke. He's coming up with some thing big! Maybe getting fired and getting some one in there that can handle the job. I have been bitching about the way we are supplied with go products for over a year. Need to go to Canada or massive mods for parts. Unless 22 racer has them. They Sure are not here! When I order from fx racing or massive mods I try to order 3-4 of everything. My have to wait a few extra days for parts but at least you get them. Be cause you sure won't get them from RACEFACTOR.

I dont see where nobody cant get nothing here I can and ask 22racer where he gets his stuff from? Racefactorindustries is here and not gone it basically was to supply hobby shops. And Russell does have the GX line coming in he just likes to have all old stuf out before he brings in new. I can understand that myself as I have my own buisness and hate having 1 or 2 of the "old" thing on the shelf because its hard to get rid of. Thats all just be patient and all will be well. Trust me I want a GX5 too but I can wait.