the ebm5 is the way to go, its allready broke in and dyno tuned, its ready to race out of the box, you wont be disapointed

Yes you cant go wrong with either modded versions. Also you should get a venturi set. I in my D8 with my PTM 5 port will be starting with a 6.5mm insert which is the smallest availible from GO. And there are companies that make smaller ones if needed. That will tame the mill, smooth it out, and give more runtime. I am guessing I should get 10mins at least out of mine. And if I need to go to a smaller insert 5.5 or 6mm will give even more runtime. I myself been wanting to try a MM engine but my sponsorship is in the US so that kinda sucks. And the EBM5 is just awesome and you have 2 choices, you dont have to get the full mod version if you dont want to. And the race prepped is still sweet cause you get the break in TKO rear bearing the coated parts and I belive but dont quote me on the weighted crank. GO for it. LOL

Hi Paulie, what a nice problem to have. All these GO motors available and we can't decide for you

Looks like it's come down to the EBMods5 or the Massive Mods 3 Port R Spec.

You say you are new to nitro buggy. I am thinking the EB5 might be too much engine if your new to nitro, especially if your track is dusty and loose as you have stated earlier. I run a MMods Stage 5 5 port in my buggy and it can be a handful, even with 6.5 mm restrictor. Great on a sticky track, but you need to be real easy on the throttle if it's loose. The modded 5 Ports do have a LOT of power for a buggy.
On the plus side, it does come run in and ready to race.

The 3 Port R Spec I feel would be better suited to your conditions. They are a very linear motor and very easy to drive. Fitted with an 0801 pipe (which you can get as a combo kit with restrictors) this motor would be plenty powerful enough for your tight track, especially if you got MMods to do a Stage 3 sleeve mod before they shipped it out to you You would need to do this anyway, as you can't sell stock GO motors internationally.
As far as break in goes, the 3 Port Race motors are nowhere near as tight as the 5 and 7 ports. Once you have a few tanks through you will find it doesn't jam on the starter box much.

Just to add to the confusuion IMO the 7 Port is the ultimate buggy motor. They do have awesome top end, but they are not that far off the 5 port for bottom end when run with the right pipe and clutch. The bottom end is still there, it is just comes in a bit smoother than the 5 Port, which suits a buggy perfectly. Short tight track run the 0801 pipe - sweet. Longer track run the 2047 pipe with the 0801 header - perfect. Down side for you is you would need a heat gun etc to break this motor in.

So IMO your best option would be to go with a Stage 3 3 Port R Spec and 0801 Pipe.

The .25 6 Port with 086 seems to be the go in truggy. Oodles of power and better economy than the .28.

I am sure one of the truggy racers on here can confirm this for you

Thanks Grizz, I considered the .25 but I can get the .28 3 port cheap...real cheap!!! At the track I'll be racing at most often run time wont be a problem, 5 min heats 7 min mains.

I have ran the 3 port sport the last couple races and it is an awesome motor. It has more bottom than a 3 port race. I have only ran mine modded but it keeps up with all the high dollar motors. Is there any good engine modders near were you live? Either 3 port will break in way easier than the 5 or 7 ports, the 3 port sport should be easier to break in than the race.

On the Eb m5, Ed recommends the fully modded for a buggy and a Race prepped for a truggy. The race prepped has more bottom end.

Rex

I just ordered the fully modded for my truggy, I should still be Ok on bottom end????

I am torn between getting the .25 6-port or the .21 5-port for my next engine. I've been racing a .21 3-port in truggy, and it's just enough to turn smooth laps but you have minimal room for error if you want to clear things which is good for a new driver. When this 3-port dies I'll get one of the two aforementioned engines to replace it. (and provided that parts or the engine itself is available.)

If the 3 port works you will love the 5 port, the .25 is really good but at some tracks could be too much.

Rex

Hey Paulie

The EB Mods engine is a top choice and especially for the local support, We give great support too but being local has advantages.

As far as run in the 3 port has a slightly looser tolerance between the piston and sleeve , this makes it easy to run in compared to a 5 or 7 p

After we mod an engine we run 1 tank with a run in fuel then a second tank with one of our race fuels HB 444 . During the second tank we check the engines integrity and rev , seals and tune . once we are happy the engine feels good we then run it out , clean and re oil for shipping.

this takes a bit of the pinch out and does make it a little easier to start , relaise these engines do not peak till they hit about a gallon .

Hope this helps

Cheers MM

Wow fellas, thank you so much for all the help thus far.

Based on all the info presented, here's my assesment...

3 port sport w/Dynamite 086 - probably perfect for me to start out with. I can most likely break it in myself, and it's extremely cost effective. Hate the Blue head though, and no one seems to have it in stock. Not too sure if it has the new carb and short LSN or not. For $125 bucks though, I don't really care

MM 3 port race w/ Dynamite 086 (not 100% sure if the Dynamite 086 is a perfect match) - price is awesome for what you get, but to get it fully broken in from MM (more than 2 tanks worth) costs slightly extra. Uses the new carb but long LSN, however they can shave it down for me if I want. Not really sure if it matters, since they will tune it for me with the full break in service. AWESOME customer service. I mean, the owner just posted POSITIVE comments about his main competition. That's a stand up guy if you ask me. Mark, about you not being local, it's not a biggie. I'm an american living in Japan, so really, no one is local. I have a US P.O. Box address though, but with you being able to ship internationally, I can just have it sent to my Japanese address. In any event, turn key solution with the full break in service. Approx $218 US

EB race prepped 5 port w/Dynamite 086 - turn key solution out of the box, but explosive bottom end may be too much. Better suited for a truggy.

EBM5 - w/Dynamite 086 - PERFECT turn key solution out of the box. Bolt on and go, smoother power delivery than the race prepped version, and crazy power everywhere. Best suited for a buggy over the race prepped version. Even though price is not an issue, it's still quite a bit more than I had planned for (but WELL worth it for what you get).

My verdict?

I think I'll go for the 3 port sport, MM 3 port race with Full break in service, or the EBM5. As far as the power of the EBM5 being too much for me since I'm new to 1/8 scale buggy, I don't think it'll be a problem. I currently have a 1/10 EP brushless 4WD buggy w/lipos that wipes the floor with just about any nitro buggy at our track as far as overall speed goes, so I'm not worried about having too much power.

The reason why I'm going to nitro buggy in the first place is because there seems to be more experienced folks in that class, so I'm more in it for the competition side of things.

If anything, I'll probably be faster in the nitro buggy 1/8 class. The cars are bigger, more stable, and more durable then my little 1/10 EP 4wd buggy. I think it'll be a win/win solution for me no mater what engine I end up with.

If I could find the 3 port sport in stock somewhere, I'd have it, but since no one seems to have it, I started looking at other alternatives, which in my case I just decided will be the MM 3 port race with Full break in, or EBM5 if I can't find the 3 port sport in stock.

Honestly, I think the MM 3 port race with full break in service at $218 US would be the most bang for the buck out there, for my situation. Mark, please check your e-mail

I'd love to show these local Japanese guys that you don't need major $$$ to be competative (these guys buy the LATEST gear EVERY year, it's crazy).

So with all that said, does anyone know who might have the 3 port sport in stock, or when they will start to arrive? If it's more than 2 weeks, than MM 3 port race or EBM5 here I come!!!



- Paulie

Ok, who am I kidding. I'm not waiting 2 weeks, ha ha ha.

I've decided on the Massive Mods modded 3 port race engine, with FULL break-in service. They even asked what type of fuel/nitro content I'd be using, as well as what pipe and which glow plug I'd use (most likely 086 and OS P3), so they can closely replicate those conditions when they break it in for me!

Now that's as turn-key as you can get, and FANTASTIC customer service!!!

I'll keep everyone posted...



- Paulie

great choice on engine, p3 a very good choice in the Go-tech's

I get more power with a P6, narrows the tuning window but not by much

P4/P6 when it's cooler out, go to the P3 in the summer heat

The P3 is an excellent plug I ran 1 for like 2 1/2 months last year. P4 of its chilly but I always used the P3. I am going to give the OD 77 and 97T's a try I just bought 2 of each just to see how they last and perform because at my LHS for some reason the OS cost me $11 and the OD cost $5 I have to know. LOL If they dont last close to as long I will go back to the OS. A friend of mine also sponsored by go here, now he runs for GO and EB uses the OD plugs and likes them so we will see I will let you guys know.