R/C Tech Forums - Go-Tech Engines Thread

the Go 28 6 port is closer to a MT 28 then a Ninja 28...the Ninja is a short stroke long rod 28...the Go is a long stroke short rod 28........... the Ninja is really a bored out .21...the GO is a typical long stroke 28............................ Guys do not underestimate the Picco/Jammin engines.......I run both Go and Picco engines, and to dismiss the Picco's like your doing is not very accurate on how these motors run.........

THere is no way the Go 28 6 port is going to have the powerband and legs of a NInja 28, the internal geometry is not there ... the GO 28 is identical pretty much to the older MT style 28's, definitely not a new gen 28 sorry to say..... I will gladly have one dynoed if you want to see its powercurve next to a Ninja 28....

I am not knocking the GO 28 either, but the Ninja 28 is an amazing 28 with a killer top end no other 28 I have seen even comes close to........i mean the Ninja is built to rev....

as I say I am not knocking Go engines, as I myself have run Go engines and love them.. But the Ninja 28 is a pretty special .28 with unique internal geometry which allows it to rev higher then a typical 28 design.... I can definitely see the GO 28 6 port being a good matchup to a Jammin 28 as far as powerband and RPM, as they share the same bore/stroke and nearly identical timing profiles...The Ninja on the other hand is quite a bit different then the Jammin or Go..

Maximo, abouve your stating that a ninja .28 is great and seemingly a GO should be overlooked because a Ninja is so spectacular which I'm sure it may be and then you say you can prove the #s but you post pulls on a .25, that really isn't comparing apples to apples is it?

silverM3

01-03-2008 05:48 PM

Quote:

Originally Posted by nitrohead1 (Post 4031739)

Where you guys buying Go Tech Engines

I bouoght my .21 7 port from ebay. It is about $180 including shipping. Best deal by far. it doesn't have serial number on it tho. But, who cares, GO engines' quality is superb. This is my second one. I never have any issues tuning it.

TMizzle

01-03-2008 05:51 PM

yo brian.
you should have a .25 and a 5 port on the way...
u still putting ceramics in right?

Maximo

01-03-2008 06:28 PM

Quote:

Originally Posted by mugenb46 (Post 4035468)

both are great motors...but they are each very different engines, with very different port timings, bore/stroke and rod length....... Someone in a previous post asked how the Jammin JPX was compared to the Go 28... Someone stated the Jmmin JPX was a old school MT engine rebadged and the GO 28 was a new gen racing .28 like the Ninja 28.... I was only stating I didn't agree with this statement.... I am not dissing the Go 28 in any way..I am just stating the Go 28 is nearly identical in timing/ bore/stroke and rod length to the Jammin JPX 28... the Ninja 28 is timed and built quite a bit differently...with a short stroke, longer rod and a longer rod/stroke ratio..the Ninja is built to rev..... I personally love the Jammin JPX 28, and I am sure I will love the Go 28........ I also like the Ninja 28 as well, being that its a short stroke mill it doesn't make quite the overall power of a Jammin JPX but its able to rev higher...short stroke motors rev easier then long stroke motors...Also contributing is the rod/stroke ratio.... which the Ninja also has to its advantage when talking RPM......I am not knocking the GO, just stating its closer to a JPX 28 then a Ninja 28...I personally like the JPX quite a bit....

Oh and someone asked if there were any dyno graphs of some Go engines..so I posted the graphs I could find....

Rocket42

01-03-2008 06:28 PM

Because of time issues around the holiday's a few Turbo Go engines were shipped with the Turbo button seperate and not installed, the factory does not make the engines as turbo's so in order for me to offer Turbo versions to customers I purchase extra turbo buttons and build the engines as Turbo's. Turbo versions of the engines do not feature plugs because Go does not currently make a Turbo plug.

mugenb46

01-03-2008 06:40 PM

maximo, i understand your points completley, but we are talking about .28s, the displacement alone could change the graphs on theose pulls. i was just thinking, that if you wanted to compare a ninja .28 and a GO .28 why show a GO .25 VS a ninja .28 i was really anticipating you posting the results of those two not a .25 GO and Ninja .28 thats what i was refering to when i quoted your first statment.

Rocket42

01-03-2008 06:47 PM

Mugen, Maximo hasn't had the chance to run a .28 yet thats all, so the only comparison graph he has was a modded .25 he did to a stock Ninja.

One thing that you are forgetting Maximo when you compare timming and porting and stroke with the Go engines is the piston. The pistons are very slick because of the material used, and that is one reason why i believe the .21 show such great performance on or off the dyno.

Maximo do you know how many ports are in a Picco, that is another cost contributing factor in the engines as well, the more ports the more cost.

Maximo

01-03-2008 06:50 PM

Quote:

Originally Posted by mugenb46 (Post 4035739)

I dont own a dyno..I live in Canada and I mailed a few personal engines to AB mods to be dynoed.... Unfortuntely I have only modified a GO .28 but It was not my motor to run or dyno....I would love to have seen one dynoed, but I am not about to purchase one to get it tested.... I mean the Go .25 that was tested is one of my personal race engines that I used at the end of the season.. Even that motor has too much power for my driving skills, so i have no interest in an even torqier .28......I can tell you the Go .28 is very similar to a Picco 28 in timing and internal geometry... the Picco has the fancy MES style exhaust but other then that they are similar.... I am going to bet they both are going to make their powerbands in a very similar fashion and RPM range...The GO 28 will be closer to a Picco 28 then to a Ninja 28.... Piston velocity and internal friction play a big role in engine RPM capabilities...

Anyways personally i am done running anything bigger then a modded .21, as I find the modded .28's too powerful to clutch properly, even the .21's are chewing the clutches faster then I would like....

Maximo

01-03-2008 06:56 PM

Quote:

Originally Posted by Rocket42 (Post 4035774)

Piston velocity/acceleration is a huge factor in determining an engines maximum RPM capabilities.... a short stroke, long rod engine subjects its piston to lower speeds and accelerations as opposed to a long stroke short rod engine ... on the opposite end of the spectrum the long stroke, short rod engine carries more power with every engine stroke, but as RPM climbs the long stroke engines start losing efficiency due to friction, and piston acceleration..as well creating more strain on the connecting rod....some manufactures believe strongly in long stroke engines such as RB and AXE Rossi, other manufacturers rely on short stroke..... long stroke engines behave differently then short stroke engines..each has its advantages and disadvantages

rltanner

01-03-2008 07:00 PM

MadRussian

01-03-2008 07:05 PM

Quote:

Originally Posted by Maximo (Post 4035686)

Oh and someone asked if there were any dyno graphs of some Go engines..so I posted the graphs I could find....

THANKS!!!:D

All times are GMT -7. It is currently 10:13 AM.

Page 76 of 1009

Show 40 post(s) from this thread on one page