Go-Tech Engines Thread
#136
Tech Addict
iTrader: (36)
Joined: Sep 2006
Posts: 512
From: Lynn Haven Florida
On the Go Tech subject, has anyone else noticed a distinct similarity between the head on the 5-port and the head on a Hyper 8-port Race engine?
#137
Tech Adept
Joined: May 2007
Posts: 150
From: Birmingham UK
As i am led to believe the Go 7 port is a copy of the RB WS7, my friend has just ordered a GO so i will check it out next week. If so does this mean GO parts will fit the RB
Any one else know if this is true?
Lunie
Any one else know if this is true?
Lunie
#138
Rstnboy, I owned a hyper 8 and the cuts are similiar on the head between the 2 engines but the go's use a different material and the actual finish of the Go head is much different.
Lois8lunie The Go 7 is not a copy of the RB ws7, the Go 7port is not actually a 7port if you consider intake ports the only porting you count, the Go 7port has 5 intake ports identical to the Go 5port, but the 7port features a tri exhaust port, which take the power band of the 5port and just knocks it up into a higher rpm range.
Lois8lunie The Go 7 is not a copy of the RB ws7, the Go 7port is not actually a 7port if you consider intake ports the only porting you count, the Go 7port has 5 intake ports identical to the Go 5port, but the 7port features a tri exhaust port, which take the power band of the 5port and just knocks it up into a higher rpm range.
#140
funny thing to me is the 5 port and 7 port Go 21 both have only 5 intake ports......Nice engines by the way, i mean no disrespect to go... I was just suprised ot see the 7 port was really just a 5 port...
Last edited by Maximo; 09-07-2007 at 07:32 PM.
#142
No , if they were going to copy an engine i think they would pick a better one than the WS7
#144
Joined: Mar 2006
Posts: 5,120
From: www.moorebankraceway.com
ok let me add a grain of salt to this oprah winfrey love fest show we have here.
sure the go tech is great, but there are a few issues. let me outline them.
1) the carby. the seal between the metal section and the plastic sections of the carby allows air to enter, ruining the tune. How do i know this? most owners of go's in australia have fixed the problem by placing jb weld around this joint
2)the quality is very good yes, and machining is great, but certain cosmetic finish issues still remain. sure not a big woop, but it helps sell an engine (minor point, granted)
3)there is a revised low end needle from what i have been told. hence original carby low end needle is not really designed well (course thread i am imagining, and hence hard to get fine tune) i've experienced this whilst trying to tune my low end.at one fraction its rich, and another it's lean.
4) engine does not come with enough headshims as standard. sure not a massive point, but you want to buy it off the shelf ready, and not be required to read up on a forum to learn what is needed
other than these things the engine is fine. Problem is, from my experience the carby seal issue is hampering my tuning big time! i mean, i can't get it to idle for more than 10 seconds without it bogging down insanely and dieing
...im not a newb at tuning either
, and i am using good fuel.
i'm actually contemplating poping in my OS vspec carby...yet this sort of defeats the purpose of why i bought the engine.
i wanted a cheap, well built replacement to the OS, yet if i need to chop and change parts...well,....what's the point really. I want two good engines not one good one, and another good one with a missing carby
sorry MM but i just don't see the point in a "love fest" forum man, there are issues, yet the engine is great quality, but before it can hammer the competition even before it hits the track these issues need to be resolved. JUST FIX THE BLOODY CARBY GO TECH!!
sure the go tech is great, but there are a few issues. let me outline them.
1) the carby. the seal between the metal section and the plastic sections of the carby allows air to enter, ruining the tune. How do i know this? most owners of go's in australia have fixed the problem by placing jb weld around this joint
2)the quality is very good yes, and machining is great, but certain cosmetic finish issues still remain. sure not a big woop, but it helps sell an engine (minor point, granted)
3)there is a revised low end needle from what i have been told. hence original carby low end needle is not really designed well (course thread i am imagining, and hence hard to get fine tune) i've experienced this whilst trying to tune my low end.at one fraction its rich, and another it's lean.
4) engine does not come with enough headshims as standard. sure not a massive point, but you want to buy it off the shelf ready, and not be required to read up on a forum to learn what is needed
other than these things the engine is fine. Problem is, from my experience the carby seal issue is hampering my tuning big time! i mean, i can't get it to idle for more than 10 seconds without it bogging down insanely and dieing
...im not a newb at tuning either
, and i am using good fuel.i'm actually contemplating poping in my OS vspec carby...yet this sort of defeats the purpose of why i bought the engine.
i wanted a cheap, well built replacement to the OS, yet if i need to chop and change parts...well,....what's the point really. I want two good engines not one good one, and another good one with a missing carby
sorry MM but i just don't see the point in a "love fest" forum man, there are issues, yet the engine is great quality, but before it can hammer the competition even before it hits the track these issues need to be resolved. JUST FIX THE BLOODY CARBY GO TECH!!

#146
Satoch the HSN should be 1 turn below flush, and the LSN should be just slightly out from flush.
TomB you are right the carb is the weak link to the engine, I can tell you that the factory is constantly trying to improve it though and with all things please remember this is a new company, and while not perfect they offer one of the best products on the market.
1) I pressure test every carb that sells thru approved dealers in the U.S. and I can tell you that the latest batches of carbs where not leaking. This is by no means a long term test and a approval that this problem is fixed, but from that gate the engines have been redesigned to seal better at the joint. I will continue to JB weld the seams on my engines just because its easy and a permanent fix, any plastic alumn. carb could leak just as the Go's and I have heard of people using our fix on different carb brands.
2) As far as cosmetic appearance that is a personal preference and I can't say either way, all I can say is I personally prefer function over form and the big cooling head on the Go is one of the best stock cooling heads on the market.
3) The change to the LSN was the taper of the needle, the factory changed the Taper to try and improve bottom end performance. I agree the needles on the Go engines are sensitive and you usually end up adjusting the LSN a blade when its close. This is a matter of acclimation as every carb on the market tunes differently.
4) We have been running the stock head shims in the U.S. for a year, I have never added a head shim to a Go engine. and I usually pull the thin shim out around the 6 gallon mark.
I wouldn't give up on the Go carb yet, Just check yours and check your front bearing, make sure that the engine is sealed up and try a hotter plug.
TomB you are right the carb is the weak link to the engine, I can tell you that the factory is constantly trying to improve it though and with all things please remember this is a new company, and while not perfect they offer one of the best products on the market.
1) I pressure test every carb that sells thru approved dealers in the U.S. and I can tell you that the latest batches of carbs where not leaking. This is by no means a long term test and a approval that this problem is fixed, but from that gate the engines have been redesigned to seal better at the joint. I will continue to JB weld the seams on my engines just because its easy and a permanent fix, any plastic alumn. carb could leak just as the Go's and I have heard of people using our fix on different carb brands.
2) As far as cosmetic appearance that is a personal preference and I can't say either way, all I can say is I personally prefer function over form and the big cooling head on the Go is one of the best stock cooling heads on the market.
3) The change to the LSN was the taper of the needle, the factory changed the Taper to try and improve bottom end performance. I agree the needles on the Go engines are sensitive and you usually end up adjusting the LSN a blade when its close. This is a matter of acclimation as every carb on the market tunes differently.
4) We have been running the stock head shims in the U.S. for a year, I have never added a head shim to a Go engine. and I usually pull the thin shim out around the 6 gallon mark.
I wouldn't give up on the Go carb yet, Just check yours and check your front bearing, make sure that the engine is sealed up and try a hotter plug.
#148
www.rccompound.com has the 5 port of $179 thats a great price for a great motor....also amain is selling gotech engines again....
#149
Tech Adept
iTrader: (6)
Joined: May 2007
Posts: 141
From: SoCal Inland Empire
For my style of driving and the type of tracks I usually run on I go for the 5 port for it's better bottom. The 7 port has it's powerband more on the higher side, so for most tracks with short run ups to jumps, you won't be hitting the peak of the powerband often. On euro style tracks that seem to be more long-flowing, the 7 port would have an advantage. 5 port is more forgiving too as you'll be able to hit the peak sooner. Also, the weight and gearing of your buggy is also important. For example, Losi 8's weigh quite a bit less than my Mugen MBX5R and they seem to run better with a softer bottom motor with stronger top as high-torque motors tend to upset their lighter chassis.
#150
ok let me add a grain of salt to this oprah winfrey love fest show we have here.
sure the go tech is great, but there are a few issues. let me outline them.
1) the carby. the seal between the metal section and the plastic sections of the carby allows air to enter, ruining the tune. How do i know this? most owners of go's in australia have fixed the problem by placing jb weld around this joint
2)the quality is very good yes, and machining is great, but certain cosmetic finish issues still remain. sure not a big woop, but it helps sell an engine (minor point, granted)
3)there is a revised low end needle from what i have been told. hence original carby low end needle is not really designed well (course thread i am imagining, and hence hard to get fine tune) i've experienced this whilst trying to tune my low end.at one fraction its rich, and another it's lean.
4) engine does not come with enough headshims as standard. sure not a massive point, but you want to buy it off the shelf ready, and not be required to read up on a forum to learn what is needed
other than these things the engine is fine. Problem is, from my experience the carby seal issue is hampering my tuning big time! i mean, i can't get it to idle for more than 10 seconds without it bogging down insanely and dieing
...im not a newb at tuning either
, and i am using good fuel.
i'm actually contemplating poping in my OS vspec carby...yet this sort of defeats the purpose of why i bought the engine.
i wanted a cheap, well built replacement to the OS, yet if i need to chop and change parts...well,....what's the point really. I want two good engines not one good one, and another good one with a missing carby
sorry MM but i just don't see the point in a "love fest" forum man, there are issues, yet the engine is great quality, but before it can hammer the competition even before it hits the track these issues need to be resolved. JUST FIX THE BLOODY CARBY GO TECH!!

sure the go tech is great, but there are a few issues. let me outline them.
1) the carby. the seal between the metal section and the plastic sections of the carby allows air to enter, ruining the tune. How do i know this? most owners of go's in australia have fixed the problem by placing jb weld around this joint
2)the quality is very good yes, and machining is great, but certain cosmetic finish issues still remain. sure not a big woop, but it helps sell an engine (minor point, granted)
3)there is a revised low end needle from what i have been told. hence original carby low end needle is not really designed well (course thread i am imagining, and hence hard to get fine tune) i've experienced this whilst trying to tune my low end.at one fraction its rich, and another it's lean.
4) engine does not come with enough headshims as standard. sure not a massive point, but you want to buy it off the shelf ready, and not be required to read up on a forum to learn what is needed
other than these things the engine is fine. Problem is, from my experience the carby seal issue is hampering my tuning big time! i mean, i can't get it to idle for more than 10 seconds without it bogging down insanely and dieing
...im not a newb at tuning either
, and i am using good fuel.i'm actually contemplating poping in my OS vspec carby...yet this sort of defeats the purpose of why i bought the engine.
i wanted a cheap, well built replacement to the OS, yet if i need to chop and change parts...well,....what's the point really. I want two good engines not one good one, and another good one with a missing carby
sorry MM but i just don't see the point in a "love fest" forum man, there are issues, yet the engine is great quality, but before it can hammer the competition even before it hits the track these issues need to be resolved. JUST FIX THE BLOODY CARBY GO TECH!!





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