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

zJatoRad 07-17-2009 06:06 PM

amainhobbies has the rod in stock...

http://www.amainhobbies.com/index.ph...cturers_id=168

RETRO RC 07-17-2009 08:16 PM


Originally Posted by grizz1 (Post 6078635)
Ahh - a man with a chequered past. Formula 5000, now your talking my lingo. I was brought up on Formula 5000 and Mc Laren Can Am cars. Big boomers :D
Driving one of those must have been a huge buzz. We have a couple of rounds in NZ each year of the Formula 5000 Revival Series which is raced around the world. Have you had anything to do with that ?
My need for speed just resulted in the second hand purchase of my latest toy. I know it's not an off-road or a GO, so I apologise in advance men, but it is bloody fast :nod: Gives me a buzz when I'm not playing in the dirt with the X Ray. Thought you might be interested.

Gee that body looks familiar I bet Greg was sad to see that go:lol:

grizz1 07-17-2009 10:58 PM

I get the feeling it might not have been all his idea to part with it. But it's gone to a good home :D

mattwoodcraft 07-18-2009 01:35 PM

im thinking of getting a new piston and sleeve for my spares , will be getting the 5 port one to power the truggy along im thinking ....
a 5 port with a gold head:D

mattwoodcraft 07-18-2009 01:43 PM

dam i forgot how dam hard just how difficult the piston gaugeon pin clips are to remove .... and to make matters worse i have lost the tweezers :flaming:...
oh well :lol:

racer6888 07-18-2009 04:14 PM

guy, need help. I think i know the answer, but wanna ask just in case.
I went to the track today, and had an early ending. The bushing in my rod broke into a couple pieces. I was looking around and besides that the only real damage i see is a few little dimples in the top of the piston from maybe a piece of bushing being smashed into it. Will the piston still work, or is it toast also? Let me know if you need pictures to tell.

malik 07-18-2009 05:58 PM

You have to completly take apart the mill and see if there are any scratches in between the piston and sleeve. If not then it could have been the piston hitting the plug since the bushing went it let the piston reach high enough to do that. If the sleeve and sides of the piston are okay get a new rod pin clips and maybe some bearings while your at it and you should be okay. Its possible some brass got in the bearings.

grizz1 07-19-2009 12:37 AM

Well guys, I ran the new 2072 pipe on the 7 Port at our meeting today - mixed reactions. Definitley had more mid range to top end as compared to the 0801, but I have to say the hybrid 2047 / 0801 header set up is definitly cripser and stronger on the bottom to mid range, and not far behind on the top end. I spent half an hour playing with the tune to try and get the wicked bottom end I had the last few meetings with the hybrid set up, but it just wasn't there. I was actually quite dissapointed, as from what I had heard, I was expecting balistic performance right thru the range. I will try it on the 5 Port next meeting, but going on todays results I will be running the 2047 / 0801 hybrid on the 7 Port I would think. This combo really does rock on the 7 Port. (My 7 Port has a modded sleeve. The 2072 may be better on a stock motor - I don't know).
Be interested to hear a comparison from anyone else who has tried the 2047 / 0801 hybrid set up as well as the 2072. Maybe it was just my tuning - but I seem to have got it right every time before with the hybrid set up :)

mattwoodcraft 07-19-2009 06:50 AM

grizz im pretty happy the 2072 pipe it rocks on my moded engine and i really wouldnt want to replace it unless i really had to ..

what is the 2047 pipe more top end ?

grizz1 07-19-2009 02:17 PM


Originally Posted by mattwoodcraft (Post 6086030)
grizz im pretty happy the 2072 pipe it rocks on my moded engine and i really wouldnt want to replace it unless i really had to ..

what is the 2047 pipe more top end ?

The 2047 (with it's original shorter header) is a mid to top end pipe. With the longer 0801 header it performs better on the GO's. It is very similar in design to the new 2072. I have been running this 2047 set up for a while and just found the new pipe wasn't really any better, in fact I preffered the 2047 set up, especially for low down power off the mark. It was just more aggressive, on my motor anyway.
The 2072 is a good pipe, I guess I was just expecting more for the price. Had I been able to try one and compare it to the 2047 set up I was running, I doubt I would have spent the extra money. Just my opinion. I'm not bagging the product (if that's what it sounds like), I just expected too much I guess.

mattwoodcraft 07-19-2009 02:36 PM

its all good mate i know what you mean ....

i really dont know any differance as i never used a 2047 pipe with these engines ...

mattwoodcraft 07-19-2009 02:41 PM

what you think about a moded 3 port in a truggy ?

my other motor took a turn for the worse at only 3 lt or so :eek:

RETRO RC 07-19-2009 10:36 PM


Originally Posted by mattwoodcraft (Post 6087124)
what you think about a moded 3 port in a truggy ?

my other motor took a turn for the worse at only 3 lt or so :eek:

Bugger:cry: Personally Matt I would go for the 5port over the 3 as I never really found the 3 to have enough bottom end for my liking.

I ran a 7port in my 8t when I had it and with the 2047 -0801 header combo it's was pretty bloody good

Adrian:batman:

grizz1 07-19-2009 11:12 PM

Much happier little racer today. I put the 2072 on my MM5 5 Port and got a couple of tanks through it.
Hmmmm - wonderful :D
It reminded me a bit of the Dynamite 086 I used to run on the 5 Port (which was very nice) but with more overall grunt.
I had been running the 0801 on my modded 5 and it was good. Lots of bottom, but it did run out of breath a little early in the rev range. The 2072 is pretty much the same down low (same header I guess), but really brings the top end on quickly and revs it right out :sneaky:
So basically the 2047/0801 combo works wizzard on my 7, and OK on my 5. The 2072 works wizzard on the 5, and OK on the 7. So I guess you can figure out what pipes will be going where :p

mattwoodcraft 07-20-2009 02:15 AM


Originally Posted by RETRO RC (Post 6088916)
Bugger:cry: Personally Matt I would go for the 5port over the 3 as I never really found the 3 to have enough bottom end for my liking.

I ran a 7port in my 8t when I had it and with the 2047 -0801 header combo it's was pretty bloody good

Adrian:batman:

mate i hear you my moded 3 port is for buggy ....:)
i have run into a spot of trouble with my 7 port this motor was for the nationals in 3 weeksfor my truggy and im due to fly out on thursday for work :cry:...
i have sent it to Mark he is having a look ...

but its the timing of the nationals no time to run in a new motor befor flying out to the nats as i have pretty much connecting flights from when i get back ...


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