2LikesGo-Tech Engines Thread
04-13-2009 | 11:14 PM
#6376
Took my MM5 7 port to a new track that opened 20 minutes from my house today 
This thing has TONs of power, was WAY too much for this track today, although traction was really hard to come by. They still haven't put down the last layer and it was pretty sandy. I'm pretty sure they are putting a layer of clay on top soon so that should help. Had no trouble clearing the 45' back tabletop even with the short run up, but I had to hit the berm and EASE on the throttle to keep the car from braking loose
I was getting 10+ minutes a tank with the 7mm restrictor. I'm going to try the 6.5 next trip here due to the traction issue. My last tank before I was going to head out I actually started timing but at the 8 minute mark I clipped the wooden wall on the last jump before the straight and broke an upper arm (yes that's my broken car in the picture) I still had 1/3 tank left.
Very happy with it, thanks a ton Mark. Great engine, can't wait until the 26th so I can stretch it's legs on a bigger track.
This thing has TONs of power, was WAY too much for this track today, although traction was really hard to come by. They still haven't put down the last layer and it was pretty sandy. I'm pretty sure they are putting a layer of clay on top soon so that should help. Had no trouble clearing the 45' back tabletop even with the short run up, but I had to hit the berm and EASE on the throttle to keep the car from braking loose
I was getting 10+ minutes a tank with the 7mm restrictor. I'm going to try the 6.5 next trip here due to the traction issue. My last tank before I was going to head out I actually started timing but at the 8 minute mark I clipped the wooden wall on the last jump before the straight and broke an upper arm (yes that's my broken car in the picture) I still had 1/3 tank left.
Very happy with it, thanks a ton Mark. Great engine, can't wait until the 26th so I can stretch it's legs on a bigger track.
04-13-2009 | 11:31 PM
#6377
Tech Adept
Joined: Mar 2008
Posts: 130
From: Northwest WA
They're on ebay. Starting bid is $55
Mfrosty: I haven't broken any upper arms on my RC8 since I started boiling them. I nailed a wood barrier after a triple and bent my carriers and Ti hinge pins but I'm still using the same upper arms.
Mfrosty: I haven't broken any upper arms on my RC8 since I started boiling them. I nailed a wood barrier after a triple and bent my carriers and Ti hinge pins but I'm still using the same upper arms.
04-13-2009 | 11:45 PM
#6378
That's what I did tonight. Boiled ALL my spares
04-14-2009 | 01:24 AM
#6379
Hey Massive mods, Grizz or anyone else that would know. i got a question for you, I have seen commented here about different piston and sleeve sets fitting different engines, (there was mention of putting a 5p sleeve in a 3p mill) with this blue headed 3 port is there any other p/s sets that will fit in it? im thinking since i am going to have to do something with this mill (it was doa) i might as well get it running again. my options are pinching the existing sleeve or just doing a proper rebuild to it. When it was almost at temp and right before it went crazy i was liking what it was starting to do.
this is still unanswered.
04-14-2009 | 02:09 AM
#6380
Tech Regular
Joined: Nov 2007
Posts: 377
My understanding is that you can basically swap the 3/5/7p Pro internals but not between any of the .21 pro engines and the 3p sport. Reason for this was the timing differences. They might work but not the best. I think in .28 engines you can put the Pro 6p internals to the 3p sport. This info is from Mark @ MM but I let him confirm this
04-14-2009 | 07:05 AM
#6381
Joined: Mar 2008
Posts: 3,323
From: Erie Pa.
The Go .21 races like hot plugs I run P3, P4, or OD77T thats it. My PTM 5 port loves P3's I am going to try to get it to like the OD 77T's this year though because for some reason at my LHS Os plugs are like $12 and the OD's are $5 but if they dont last like the OS I will go back to OS. I last year was getting like 2-3 gallons out of the P3's and changed them not cause they burned out just because I didnt want them to in the middle of a race.
04-14-2009 | 02:51 PM
#6382
Sorry I missed this the other day. $15.00 if you just send the piston and sleeve, $35.00 for rebuilding the whole motor.
Yes, all internals are the same in .21 3,5,and 7 ports, .25 and .28 have the same rods. The sport block is basically the same but different bearing and machining.
Rex
Yes, all internals are the same in .21 3,5,and 7 ports, .25 and .28 have the same rods. The sport block is basically the same but different bearing and machining.
Rex
04-14-2009 | 02:57 PM
#6383
I am not sure how many Racefactor got in but I sold 2 of them. I wouldn't buy from that Special Rc, (the one on Ebay with the coated crank) they are the ones that sell the Factory modified Go's that are the same as all the rest.
Here's a pic of the coated crank I lightened and epoxy ramped.
Rex
Here's a pic of the coated crank I lightened and epoxy ramped.
Rex
04-14-2009 | 03:06 PM
#6384
Sorry I missed this the other day. $15.00 if you just send the piston and sleeve, $35.00 for rebuilding the whole motor.
Yes, all internals are the same in .21 3,5,and 7 ports, .25 and .28 have the same rods. The sport block is basically the same but different bearing and machining.
Rex
Yes, all internals are the same in .21 3,5,and 7 ports, .25 and .28 have the same rods. The sport block is basically the same but different bearing and machining.
Rex
"rebuilding the whole motor" you mean doing the breakdown and reassembly?
thinking here pinching is a good option, the price is right! but since i am refreshing it i might as well put a new rear bearing in there just to be sure. about how much would that run with a pinch?
Also the top of the piston is black, not crudded up just black. would using a dremmel and wire brush on the face hurt it?
04-14-2009 | 04:01 PM
#6386
"rebuilding the whole motor" you mean doing the breakdown and reassembly?
thinking here pinching is a good option, the price is right! but since i am refreshing it i might as well put a new rear bearing in there just to be sure. about how much would that run with a pinch?
Also the top of the piston is black, not crudded up just black. would using a dremmel and wire brush on the face hurt it?
thinking here pinching is a good option, the price is right! but since i am refreshing it i might as well put a new rear bearing in there just to be sure. about how much would that run with a pinch?
Also the top of the piston is black, not crudded up just black. would using a dremmel and wire brush on the face hurt it?
If I am just pinching the sleeve I will clean the top of the piston, I don't recommend a dremel and wire wheel!
I am going on vacation and won't be back until 1st of May so I won't be doing anything for 2 weeks.
Rex
04-15-2009 | 07:51 AM
#6387
I am not sure how many Racefactor got in but I sold 2 of them. I wouldn't buy from that Special Rc, (the one on Ebay with the coated crank) they are the ones that sell the Factory modified Go's that are the same as all the rest.
Here's a pic of the coated crank I lightened and epoxy ramped.
Rex
Here's a pic of the coated crank I lightened and epoxy ramped.
Rex
04-15-2009 | 06:43 PM
#6390
Tech Rookie
Joined: Mar 2009
Posts: 18
From: MD
Took my MM5 7 port to a new track that opened 20 minutes from my house today
This thing has TONs of power, was WAY too much for this track today, although traction was really hard to come by. They still haven't put down the last layer and it was pretty sandy. I'm pretty sure they are putting a layer of clay on top soon so that should help. Had no trouble clearing the 45' back tabletop even with the short run up, but I had to hit the berm and EASE on the throttle to keep the car from braking loose
I was getting 10+ minutes a tank with the 7mm restrictor. I'm going to try the 6.5 next trip here due to the traction issue. My last tank before I was going to head out I actually started timing but at the 8 minute mark I clipped the wooden wall on the last jump before the straight and broke an upper arm (yes that's my broken car in the picture) I still had 1/3 tank left.
Very happy with it, thanks a ton Mark. Great engine, can't wait until the 26th so I can stretch it's legs on a bigger track.
This thing has TONs of power, was WAY too much for this track today, although traction was really hard to come by. They still haven't put down the last layer and it was pretty sandy. I'm pretty sure they are putting a layer of clay on top soon so that should help. Had no trouble clearing the 45' back tabletop even with the short run up, but I had to hit the berm and EASE on the throttle to keep the car from braking loose
I was getting 10+ minutes a tank with the 7mm restrictor. I'm going to try the 6.5 next trip here due to the traction issue. My last tank before I was going to head out I actually started timing but at the 8 minute mark I clipped the wooden wall on the last jump before the straight and broke an upper arm (yes that's my broken car in the picture) I still had 1/3 tank left.
Very happy with it, thanks a ton Mark. Great engine, can't wait until the 26th so I can stretch it's legs on a bigger track.