Very true....I very quickly broke in my old motors(still always pre heated till after first gallon) and the only ing went wrong is the wrist pin ovalized the hole on the piston....but they never blew up...got 8+ gallons on them and they still scream :sneaky:

always worked for me.I see massive say's there is a new way of tuning but didn't say what it is. Trey's way worked for me. But I still say that since it's tight/modded the tuning is still very touchy until it gets at-least 1/2 gallon through it. Mine is at the 1.5 gallon mark and has just got easy to dial in.

dint say i hated it, hate is a strong word...LOL There is nothing i hate about the GO ENGINES:D

honestly, I'm glad that we've got so much input on tuning, with different approaches. What works for some may not work for others. My approach may or may not be new, but I have been trying different approaches and this is the quickest, easiest way for me. Really, all you have to do is listen to the engine and watch for the smoke.

Anyways, if your LSN is any farther OUT from 1 full turn from flush, you're running too fat on bottom and too lean on top. If you are still lean at idle, and feel you need to fatten the LSN, do the top one hour first. you'll see a huge difference from idle to top-end. If it feels too fat on top after this, put the car on the track and RUN it for a lap. If it's still too fat on top and you're close to 1 full in from flush on the LSN, lean it out an hour or two. I know this sounds bass ackwards, but the new LSN still regulates fuel at WOT. I believe OS does this too. Havent messed with one in a while. :blush:

IT WORKS!!!!!!!!!!!!

check out my rig!....lol...j/k..its not real..just photobucket:sneaky:...i love the green Go :nod:

Yeah - hate is pretty strong. Dislike would have been a better choice :cool:.
I know you are a GO man through and through :nod:.
I guess everyone has their own methods that work for them, so sharing them on here can only be a good thing. That's how we all learn.

If makes you feel better Grizz I use your method with a few personal tweaks to tune my Argus A52 with a long needle. For my short needle GX5R I use a method Rex gave me awhile back and it works great.

same here..ive always used it as an almost setting...then tweak in the KILL MODE!:batman:

Ha ha ha - I'm feeling fine :lol:. No skin off my nose. I know what works for me (what I have been taught and picked up from others). The 7 sec routine was something I picked up from Massive when I started stocking the MG66 motors. It worked fine for me so I passed it on to customers who I thought would benefit from it as a tuning tip with their GX motors.

I actually use the cold pinch test to set the idle gap more than anything else, then just tune off my own bat from there - but I was of the opinion that the 7 sec routine was a good guide for newbies that had very little idea of what to look and listen for. It got their motors going "ball park" so they could have some fun until they climbed the steep learning curve that is nitro motor tuning.

Now I have been informed it will not give good results on the newer GXII re-tapered needles, I won't pass it on to those customers.
I just didn't like the tone of inferno's post that's all, but with a very large number of happy (repeat) GO customers under my belt, I'm well over it :D. I'm sure I just took it the wrong way. I'm such a SNAG :blush: NOT !!! :lol:
As has been mentioned on here many times, all any of us are trying to do is help others. Sometimes we may get it a little wrong, but all in all I think we help more than we hinder, at least I hope so ;)

+! :D

wasn't the 7 seconds on a cold motor and you aimed for 2-3 when up to race temp with the long needle?

It still has its uses if someones motor is way too lean, pinch it close to the carb and if it revs high instantly and dies then richen the lsn.
As Ruune said, a nice trail of smoke means your not too lean

the old park it for 15 seconds and gun it is not a bad method either as long as your clutch is good...checking the state of the glowplug will also lets you see if the motor running a good tune.

Now whats the best method to find the most power and leanest safe setting for your motor when tuning the hsn.

i see a lot of guys go too far trying to get the max out of their motors, you know that smell of a hot frypan when one drives past your marshalling point or your pitting next to one, lots of flameout and blown plugs.
I think i'm a little guilty of being a bit on the other side of the best tune and loose a little runtime because of it... the plus side is no flameout and a motor at 115-125C that holds a good tune and compression through a race while still getting 10 minute tanks (buggy) on a fast open track.
What sort of max running temp are the GXII being run at, should I be running it leaner?

I wrote the 7 second pinch tune method Grizz talks about in about 2007 after a few years experimenting with tuning. It works for the GX gen 4 to 5.5 LSN carb with a standard race fuel and generally a 0801 , nova based 086 ( very common pipe ) or 2072 Pipe. I then shared this method with all Go Dealers that would listen. Grizz is a fantastic listener like Flanno.. Tell them once and they give it a try ..

All you are doing with the pinch is de masking the idle gap and you then set it to your ear. It dosent matter where you pinch the fuel line 1inch of 3 inches from the nipple ( sounds rude i know )

Different carbs / engines and fuel pipe combos will react differently ..

You need to experiemnt like i did for about 60 hours a week for about 3 years .. ( slow learner ) then average your race tunes over that period and collate the correct data .. draw a line down the middle and call it a basic tuning guide for that engine carb set up.

I have the new settings already for the GXII but im still amusing myself looking at what you guys are coming up with :)


M

:sneaky: But you have an advantage over us Mark....didn't have a hand in designing the new needles :D