2LikesGo-Tech Engines Thread
01-23-2011 | 08:04 AM
I myself like to change them out when needed. The go engines are so tight to begin with that I feel the break in would only wear the ceramics out to soon making it a waste of money. The other point is the go bearings last a long time.
Moto,have you used the comp. engine heater in the 12v style? and could a person hook it up to a lipo battery that would also serve as a starter box battery?
Moto,have you used the comp. engine heater in the 12v style? and could a person hook it up to a lipo battery that would also serve as a starter box battery?
Matt- no, I haven't used the 12V model yet. Our track has 120V right at pit lane. I'm told they warm the engine even faster than the 120V (5 min vs. 10-15 min). Eric (the owner of Comp Heat) has been pretty serious about not exceeding 12V on this model. He recommends that any source that is actually over 12V be discharged down to 12V first.
Moto
free shipping
01-23-2011 | 08:09 AM
Tech Fanatic
Joined: Aug 2008
Posts: 891
From: Texas
01-23-2011 | 08:34 AM
I had the OFNA kit before I got the Hudy tool - Please don't take this the wrong way, but IMO the Hudy tool is a better option - that's why I upgraded.
Both are good tools. If you are only doing a few bearings a year for yourself and a couple of mates, the OFNA kit is cool. If like me you are changing quite a few sets of bearings, the Hudy engineering, and the versatility and speed of use of the Hudy tool make it a better option.
None of the Hudy stuff is cheap (like their drive pin tool etc), but they do make excellent, strong, long lasting precision tools that do make the job easier, which is why I reckon their stuff is worth the extra $$
NB: The Hudy tool is very similar to the GRP bearing tool that was around a while ago, until they burnt the factory down and destroyed everything
. I think they are on the market again now, but are way more expensive than the Hudy unit (but also include a sleeve puller etc).
Both are good tools. If you are only doing a few bearings a year for yourself and a couple of mates, the OFNA kit is cool. If like me you are changing quite a few sets of bearings, the Hudy engineering, and the versatility and speed of use of the Hudy tool make it a better option.
None of the Hudy stuff is cheap (like their drive pin tool etc), but they do make excellent, strong, long lasting precision tools that do make the job easier, which is why I reckon their stuff is worth the extra $$
NB: The Hudy tool is very similar to the GRP bearing tool that was around a while ago, until they burnt the factory down and destroyed everything
. I think they are on the market again now, but are way more expensive than the Hudy unit (but also include a sleeve puller etc).The sleeve puller grizz1 is just a plastic collar that fitted over the 14mm bearing puller.It's the only bit I was missing from my kit but I'm pretty sure the exhaust gasket from a .12 size engine will do as a replacement.
01-23-2011 | 12:09 PM
Tech Elite
Joined: Nov 2007
Posts: 2,983
From: Auckland, New Zealand
I agree with Moto that the newer GX motors don't place anywhere near as much strain on the internals during break in - if it's done correctly. This is the snag in some cases. Most people follow the instructions, but there is always the one or two that have their own theories
Unfortunately these are also normally the ones that pop up on the forums and tell everyone how crappy the motors or bearings you supplied them are - after doing a full meeting straight out of the box with no run in
That's pretty much why we do it the way we do.
The other reason being, it is nigh on impossible to get the rod off a brand new motor so you can fit the new bearings. They would have to be fitted in the factory I reckon. I can fit a new rod onto a new crank in the motor (with a little trickery), but I have yet to find a way to get the new rod off the crank on a brand new motor that has never been run. Not without using extreme force and doing horrible things that one shouldn't really be doing to a new motor
.The ceramics sure do make a difference to performance (especially if you fit main and front). Poor little motors really scream with the rolling resistance lowered
The Hudy tool is an exact copy of the GRP tool..I bought a GRP a while ago for 30 bucks delivered cause 3 of the 6 jaws on the rear bearing grip had broken off..still worked fine with a bit of jiggling..The GRP units though were sold as complete separate units for .21 engines or .12-.15 engines ..and at $199 a piece..ouch..hudy sells two different sizes of jaws for the two engines and you can easily pull the center shaft (locks with a grub screw) and change them so you only need one tool for both engine sizes.I bought a set of Hudy .21 jaws to try on my GRP unit( $13 delivered from rcmushroom) and they are direct fit..just better quality steel IMHO. The center shaft on the GRP is just threadlocked solid into place instead of a grub screw.bit of heat and bingo..new tool..
The sleeve puller grizz1 is just a plastic collar that fitted over the 14mm bearing puller.It's the only bit I was missing from my kit but I'm pretty sure the exhaust gasket from a .12 size engine will do as a replacement.
The sleeve puller grizz1 is just a plastic collar that fitted over the 14mm bearing puller.It's the only bit I was missing from my kit but I'm pretty sure the exhaust gasket from a .12 size engine will do as a replacement.
Thanks for the tip on the sleeve puller, I will give that a try. Never have a problem with the GX sleeves, but a few of the older Pro Series sleeves could be seriously tight.
Last edited by grizz1; 01-23-2011 at 12:55 PM.
01-23-2011 | 11:53 PM
01-24-2011 | 12:07 AM
Thread Starter
Tech Master
Joined: Jan 2006
Posts: 1,977
From: Sydney
Congratulations to Team Driver Ong Chee Yong winning first place in Malaysian Championships with the MG66 ; ) 120 driver enrties for this event ! Nice one Ong Congratulations Champ !!! 
http://www.buggy-sport.info/index.ph...=Yahoo!%20Mail
http://www.buggy-sport.info/index.ph...=Yahoo!%20Mail
01-28-2011 | 09:13 AM
Go Engine .21 3 Port With Updated Carb
01-28-2011 | 01:24 PM
01-28-2011 | 03:55 PM
Tech Master
Joined: Sep 2006
Posts: 1,919
01-28-2011 | 04:00 PM
....
01-28-2011 | 06:04 PM
I have persinaly seen his motors run at the track and the are very fast. His wide open videos dont due them justice besides how much rpm they can build. Now they have a new track going up so i figure thats were his test videos will take place now.
01-28-2011 | 06:08 PM
01-28-2011 | 06:25 PM
If it's vids of a dyno run, that's exactly how they are done. The run starts at low rpm, the throttle is then opened fully, the rpm sensor sends rpm and rotational acceleration rate info to the software. The software does all the graphing.