Great footage. Is that a stock 5 port? It pulls hard.

What is going on at the start of the video, party at 3am with RC cars?

Our Mn Nitro series are a blast. 3 day races with good partying at night, 120-140 entries.
Yes stock 5 port, this was actually the first weekend on that motor.

Rex

Hey guys,

Difference between 0801 and 2047 on GO Gen4 .21 7port? i currently have the 2047, and was thinking of changing to the 0801. What would be the effect? more bottom? i know 2047 is the mid to top.

Also, how to i know (physically) if i have the long/short HSN (or is it LSN?) can someone post a pic of both the long and short HSN/LSN?

Thanks,

have some questions for you guys.... im looking at getting the go .25 from my truggy, im going to run the dynamite 086 pipe/header, but my question is can i use this head on the engine?

http://www.amainhobbies.com/product_...ducts_id/10573

if not can someone post a link to what turbo button would work with the .25....everyone says that the turbo gives you more power/better fuel milage and last longer so i wante to put it to a turbo and run a p3.....i been trying to read, but 169 pages is alot of reading for most of the 5/7port .21's lol

thanks for any info.....

Hi - The 0801 is nice on the 7 Port. It gives it quite a bit more bottom end snap, but you do loose a little on the top. Not that you notice it that much with the 7 Ports huge top end anyway

Short tight track or jumps straight out of corners - go for the 0801 on the 7 port.
Regular or long fast track, I would use the Dynamite Platinum 053. Not the latest model pipe on the market, but it compliments the 7 Port very nicely, and gives it a nice smooth power rush from start to finish.
Nothing wrong with the 2047 on the 7 Port either. It is the preferred pipe of a lot of peope, but I personally like the 053

Long and short LSN's are quite different. There was a picture on this thread but it has expired.
Open your throttle and look at the LSN. The long version stays in the spray bar even at full throttle. The short version will come out of the spray bar at some stage before you reach full throttle, depending on how you have it tuned. The long LSN tapers down to a long fine point and the short LSN has a more stubby rounded end. Hope that helps.

Ok this maybe a dumb question (maybe answered before hand, but i couldn't find it). How do i tell the difference between the Long and Short LSN before purchasing it? i'm looking to buy .21 7-port from Carolina's RC an i don't know how to tell if its a Long or Short. Also is one better than the other? or is it just a different set up with the same results? (i know there is a learning curve on how to tune the Long one) Thanks.

All the Gen 4 Go's (3, 5, 7 Port Pro versions) had the long LSN. Early Gen 5 had the long LSN, now I believe they have gone back to a slightly shorter LSN again in the latest Gen 5 motors - so it might be a bit hard to tell sight unseen.
Both needles perform just the same, just tune a little different. The short LSN tunes like any other nitro motor, about 2.5 - 3 turns in on the HSN and 2.5 or so on the LSN. The longer version has the HSN staying flush or .5 turns in at max, and the LSN around 2.5 - 3 like normal. You just have to run a rich HSN that's all. It's because the long LSN stays in the spray bar right up to full throttle, so you need enough fuel getting past the needle at wider throttle openings to avoid lean bog. The idea of the long needle is to smooth out the power band from start to finish, which it does. Check out tuning tips on page 131 and 132 of this thread from Massive Mods. These explain everytrhing very well. Don't be put off getting a Go engine because of this. It's not a problem and the Go's give awesome performance and value for money

Grizz, since we do have the same gen of .21 7 port. What's your HSN and LSN settings? I live here in tropical climate Philippines, average temp at around 28Celcius. I use OS P3 hot plug. Can u send a pic? please? for my set of guide.

Hi jnc011994 - I just put a new modded sleeve in my 7 Port and replaced the LSN with a new one from A-Main (which is the newer shorter version) because I had been experimenting on my old needle with the grinder !!! Yikes New needle is great, just needs a leaner top end as you would expect.

I remember my original long LSN settings on the 7 Port with 0801 pipe were -

HSN .5 to .75 in from flush depending on ambient conditions
LSN 2.5 - 3 in from flush

I run a low oil content fuel (low content but high quality), so my tuning tends to be a little leaner (ie quater of a turn or so) as I am getting a little more methanol/nitro mix per cycle into the motor.

You will find with the 0801 the motor likes to run a little leaner due to the pipes design. Most pipes with the long LSN you don't need to go any further in from flush than .5 of a turn on the HSN or you will start getting lean bog below half a tank. Also the needles on the Go motors are super sensitive. When you are hovering around a perfect tune, an adjustment of 1 hour either side can be too much. Just a smidge at a time and you will get it spot on.

Sorry, don't quite understand what you would like a picture of.

Just seen this in another thread. Figured I would repost here since it is technically a Go motor. The EBM5 from EBMods.com I wonder what the price is gonna be?

Noted on that Grizz, will try that needle settings on my 7port. .5 HSN from flush and 2.5 LSN from flush. The pic i was asking for was on our needle settings, but its ok, i'll just follow your suggestion. I'm using "cosmo" fuel with true 25% Nitro content. 1 more thing, how to define a flush?

Thanks,

FLUSH is having the top of the needle (where you put your screw driver in) turned out far enough that it is the same height as the top of the brass tube it sits in. If you run your fingernail or screwdriver across the top of the needle you should not feel the edge of the brass lip - ie the needle should be "flush" with the lip. Hope that explains it for you. Let us know how that 7 Port goes with these settings. It should be sweet

I also thought that was "flush" thanks for the clarification. We have a club race this coming Saturday, will do this modification. I have always tuned the engine with the LHS technician (since i bought it from them), but since yesterday race (Futaba Cup) i can't bother him cause he also joined the race. That was my bad since i did not even learned by myself to tune this engine. I'm a complete noob with engine tuning. I already have around 4 gallons on this engine.

Ok so after setting .7mm to 1mm in the idle gap, flushing the HSN and LSN. Turn .5 in HSN and 2.5 in LSN. Engine running, what's the worst that could possibly go wrong? will inform here once i had it tested.

Thanks,

anyone at all?

shootinblanks the .25 and .28 dont have a turbo button for it. none of the other ones will fit. thnx will g