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-   -   Go-Tech Engines Thread (https://www.rctech.net/forum/offroad-nitro-engine-forum/177028-go-tech-engines-thread.html)

grizz1 06-22-2008 02:12 PM


Originally Posted by pumpkinfish (Post 4564654)
I had a weird issue pop up today. During practice and the first qual heat, my 3R was awesome and I had tq until a bobble....damn slow marshalls, lol! Anyway, when I went out for the second heat, my buggy flamed out after 4 min. I thought maybe the plug went or something, but instead it ran out of gas. In practice and the first qual, I was able to make 7 min easy. The only change I made was to put on a new clean outer air filter. This doesn't seem right to me. I have no fuel tank or line leaks. I don't know what else could have caused this. Any ideas?

Sounds a bit weird :( If it was running that rich you would have noticed it in the performance for sure, and if it wasn't leaking fuel, where did it go ???
You did fill it up before the heat right ?? Sorry, but I had to ask that :D
The only thing I can think of is the spring on the tank lid is broken / faulty and the lid is lifting slightly and fuel is splashing out on turns etc. You would think it would definitely effect performance if the lid was not sealing, but who knows with these little buggers. They can pull some weird tricks sometimes. Check the spring and O ring seal anyway. Other than that I'm stumped too.

free2day77 06-22-2008 04:19 PM

broke in my 3port R today... i am going to like this little engine... just need to get a little more fuel through it and fine tune it.

petevette 06-22-2008 06:13 PM

Hello, I have some tuning questions for anyone here that has a 7 port with a turbo button and a Dynamite .053 pipe. If you have this setup, please send me a PM. Thanks!

pumpkinfish 06-22-2008 07:14 PM


Originally Posted by grizz1 (Post 4564667)
Sounds a bit weird :( If it was running that rich you would have noticed it in the performance for sure, and if it wasn't leaking fuel, where did it go ???
You did fill it up before the heat right ?? Sorry, but I had to ask that :D
The only thing I can think of is the spring on the tank lid is broken / faulty and the lid is lifting slightly and fuel is splashing out on turns etc. You would think it would definitely effect performance if the lid was not sealing, but who knows with these little buggers. They can pull some weird tricks sometimes. Check the spring and O ring seal anyway. Other than that I'm stumped too.

I checked all that between rounds. My pitman noticed that during the warm-up I came in to be topped off and it was close to empty. I wasn't on my lid at all as I was taking it easy. I took off the tank and checked the lines and I also pressurized the tank and found no leaks. This is my new 808 and the fuel lid spring is still very tight. I went into the main and the fuel mileage seemed normal. Very baffling.

grizz1 06-22-2008 10:49 PM


Originally Posted by petevette (Post 4565241)
Hello, I have some tuning questions for anyone here that has a 7 port with a turbo button and a Dynamite .053 pipe. If you have this setup, please send me a PM. Thanks!

petevette - You got PM

SqueegUK 06-23-2008 04:50 AM


Originally Posted by grizz1 (Post 4564656)
Sorry to hear that mate. I don't know anyone that's had that much trouble with their Go-Tech motor. A lot of guys here in NZ run them and love them.
I had a problem blowing plugs like you describe for a little while, but turned out to be my fault as I didn't have the tune correct. I was too rich on the bottom and too lean on the top. Motor ran OK but plugs died on a regular basis. Since I have remedied the tune I haven't blown a plug. I guess you have tried flushing the HSN and tuning with the LSN which seems to be the way to run these motors ? They do tune a little different to other makes it would appear. Mabye you just got a bad apple with an inherint air leak or something. Good luck, and good racing :)

Thanks mate, but I tried all the tuning advice from here, including richening up the top end and leaning the bottom end, but to no avail. If I set the HSN flush and then I leaned in the LSN until it was idling well (about 2 1/2 turns in), then the engine won't run at all. It just sputters when I rry to drive off, I need to lean the HSN in quite a bit to get it to run anywhere near decent. I also kept on getting flameouts all the time???? Engine would die for no reason at all.

I have sealed the whole engine too on the carb and back plate and used green slime on the needles to ensure no air leaks there. Oh well, you win some, you lose some.

sachoppers 06-23-2008 06:35 AM


Originally Posted by SqueegUK (Post 4566755)
Thanks mate, but I tried all the tuning advice from here, including richening up the top end and leaning the bottom end, but to no avail. If I set the HSN flush and then I leaned in the LSN until it was idling well (about 2 1/2 turns in), then the engine won't run at all. It just sputters when I rry to drive off, I need to lean the HSN in quite a bit to get it to run anywhere near decent. I also kept on getting flameouts all the time???? Engine would die for no reason at all.

I have sealed the whole engine too on the carb and back plate and used green slime on the needles to ensure no air leaks there. Oh well, you win some, you lose some.

Did you try replacing the needle?
One other thing , on my 3p rspec...the hsn needle 1h lean or 1h rich..thro's it all offff....Took my a few min

Mo Denton 06-23-2008 08:42 AM

stock setting for the go 5 port??? anyone anyone....
I relize this is probably a little farther back on the pages but jsut wondering if anyone happens to know what they are
thanks
MO

teamslow 06-23-2008 09:03 AM

the 7 port settings are
top 3.25 -3.5 from bottom
bottom 1 turn in from flush
same carb on 5 port as 7 port should be the same

higgs2ca 06-23-2008 07:34 PM

3p turbo r
 
I just purchased a 3p .21 R. I have run about half a gallon through it and I am finding it doesn't have enough bottom end snap. I am running a Go 0801 pipe using TQ fuel. This is in an Xray conversion Truggy.
Any addvise would be greatly appreciated.
Thanks...

grizz1 06-23-2008 07:45 PM


Originally Posted by SqueegUK (Post 4566755)
Thanks mate, but I tried all the tuning advice from here, including richening up the top end and leaning the bottom end, but to no avail. If I set the HSN flush and then I leaned in the LSN until it was idling well (about 2 1/2 turns in), then the engine won't run at all. It just sputters when I rry to drive off, I need to lean the HSN in quite a bit to get it to run anywhere near decent. I also kept on getting flameouts all the time???? Engine would die for no reason at all.

I have sealed the whole engine too on the carb and back plate and used green slime on the needles to ensure no air leaks there. Oh well, you win some, you lose some.

Man, that's weird. Those settings (HSN flush - LSN 2.5 in) are the exact settings I have on my 7 Port and it hums. The Go's like a hot plug (OS P3), did you try that ? Only other thing I can think of is there is an air leak via a crack in the crankcase or carb body ???? Maybe from manufacture.
Don't give up on the Go's Squeeg. Give it a break and try another motor in the future. I think you just got a bad apple, which can happen even with the most expensive motors. In general the Go's are very good value for money :cool:

sachoppers 06-23-2008 09:07 PM


Originally Posted by higgs2ca (Post 4569177)
I just purchased a 3p .21 R. I have run about half a gallon through it and I am finding it doesn't have enough bottom end snap. I am running a Go 0801 pipe using TQ fuel. This is in an Xray conversion Truggy.
Any addvise would be greatly appreciated.
Thanks...

Try 1.1 springs...I had .9 in my hot bodies.
Nice good snap now. allows the engine to rev a bit more, before clutch hits

grizz1 06-23-2008 10:44 PM


Originally Posted by 1fastguy1 (Post 4567361)
stock setting for the go 5 port??? anyone anyone....
I relize this is probably a little farther back on the pages but jsut wondering if anyone happens to know what they are
thanks
MO

HSN flush and LSN 1 1/2 turns in from flush will get you running every time. This is always a good starting setting if you loose the tune completely for some reason.
Lean the LSN from here until you get a nice steady idle and you will be sweet.
LSN will probably end up about 2 1/2 turns in from flush, maybe a little more for full race tune depending on fuel, pipe etc. HSN you don't want to go more than about 2 hours in from flush. Go's like a fat top end and a lean bottom end ;)

vti-chris 06-23-2008 10:57 PM


Originally Posted by higgs2ca (Post 4569177)
I just purchased a 3p .21 R. I have run about half a gallon through it and I am finding it doesn't have enough bottom end snap. I am running a Go 0801 pipe using TQ fuel. This is in an Xray conversion Truggy.
Any advise would be greatly appreciated.
Thanks...

I have the same ""problem""! Although it is not...this engine has great mid and top end power but it does lack a bit on low end and especially on a truggy things will be worse.
I'm running a JP-1 exhaust and 1mm clutch springs with 13/44 CB and spur gear combination on a buggy.
I KNOW that a 12CB or 46 spur would help A LOT on my case.
What i suggest for you is to go down on the CB one step OR even two if the track is too tight and short.Truggies are heavier than buggies but since this engine has the top end then no need for high gearing.

Poinas2 06-24-2008 12:16 AM


Originally Posted by grizz1 (Post 4569854)
HSN flush and LSN 1 1/2 turns in from flush will get you running every time. This is always a good starting setting if you loose the tune completely for some reason.
Lean the LSN from here until you get a nice steady idle and you will be sweet.
LSN will probably end up about 2 1/2 turns in from flush, maybe a little more for full race tune depending on fuel, pipe etc. HSN you don't want to go more than about 2 hours in from flush. Go's like a fat top end and a lean bottom end ;)

This would be the case if you are running the stock 8mm venturi. If you go smaller to seek longer runtime you might need to adjust accordingly. I found out that my 5p + JP-3 with 7mm insert does not clear out untill you have HSN in about 1/2-3/4 turn. So in case you change the venturi you should consider the effects it has for the tune.


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