I do get my parts from racer 22 but I can't justify spending money on the mod. Where having a hard time keeping nitro going in West MI so there's not alot of races or mutiple tracks on the same day and nothing the next weekend. The 7p runs great exept on 30 min main where it leans it's self out to much. I might try the 5p this time and see how it compares since 75% of the tracks are fairly large. Not sure the 3p stock would have enough grunt down the long stretches. Wish I had money to get one of each. The 7p has been my first true race eng and I love the GO.

Hi Matt. The GX motors are a lot more user friendly than the older Pro Series ones. They start to come to life around tank number 8 on the run in.
We have found if you can turn the motor over by the flywheel straight after a run (in the buggy from underneath), they are ready for a reasonable tune and some track time. This is normally happening around tank 15. When you get to this stage, take out the break in shim, tune just a little bit rich and go do some laps. After another 5 tanks, tune for racing and let her rip. It will still be tight, but will perform admirably. Just don't lean the top end too much expecting full on performance until the remaining pinch goes (around 1 - 1.5 gallons - rod change time). At this point remove 1 x .1mm copper shim, so you will now be running .4mm shim total. Much easier than the older motors


On the larger tracks the 7 Port would be more suitable due to the extra top end it has over the 5 port. You are right with the 3 port. In stock form the 3 port lacks a little top end on a larger track with longer straights.
Ideal solution - get an MG66and have the best of both worlds.

thanks grizz

Matt, glad your liking the motor, the Gx are alot nicer to break in. I personally have never put in a break in shim, remember to take out one thin shim when you feel it is fully broke in.
Did you send the Mg66 to me yet?

Rex

How can I upload picture? Have a picture of a proto HO sent out in a newsletter by a distributor in scandinavia.

click on post reply, go down and click manage attachments, a box will appear, if you have picture on your pc, click browse, find picture, click open, then upload, good luck!

Can't do it from my Itouch.
Can i send it to you and you do it for me?

sure, email is [email protected]

Done

dint get any email

Sent twice, check spam???

No it's sitting on the table. I've been under the weather so to speak[not to far from the rest room if you get my drift] I will get it out today or friday. I'm eager to see what magic you perform with it, so are alot of other people. If it's any thing like the gx it will be another ass hauler. I'm not sure who will be dealing the mg's here in the states since answer r/c america is no longer distributor. I still haven't run the 7 port yet. I love that 3 port!! Am goiing to try and run a few more tanks through it today then swap in the 7 port to see how it hauls.
Anybody want your go engine modded get ahold of racer22. YOU WILL NOT BE DISAPPOINTED!

tried opening, says invalid file

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if it is the pic with the 3 needle carb, please do not post. there have been changes since this picture was taken.
Thanks,
Trey