Originally Posted by Maximo
(Post 5161169)
remember the X2 Truggy is much lighter in the back end then the MBX5T you were used to.... The Speed is actually a very smooth engine with a weighted crank..I would be looking at setup as your not going to find a much smoother easier to drive 21 then a Speed.....
I just read where your saying the motor has a hesitation, then it goes.... this is not normal for a Speed.... The Speed should pull smooth and steady right off idle... not lul then explode........ I would consider checking your MSN position as well as clutch engagement RPM, a low engaging clutch or out of position MSN would cause this issue... 2 weeks ago my boys were running a JPX 21 vs a Speed and by far the Speed was smoother and easier to drive, the JPX was coming on too hard out of the corners and kicking out, the Speed was tracking straight and easy....We use Speeds for loose slick tracks, and run the Picco's on high bite tracks..... Which is why I say your issues are setup related and not engine related, a Speed is actually even mellower down low then a regular V-Spec |
Originally Posted by hobdog
(Post 5161815)
Does anyone know the stock setting on the needles for the speed? I bought it used and have not touched the middle needle but who knows what the guy before me did.
HSN: 3.5 turns LSN: 5.25 turns Mid: Flush with carb body |
Originally Posted by jaylude22
(Post 5161945)
Here are the stock needle settings, they're quite rich at 550 ft.
HSN: 3.5 turns LSN: 5.25 turns Mid: Flush with carb body |
For the most part, most people leave the mid needle alone. Not really any need to mess with it. If you stick to using just the HSN and LSN, the O.S. engines are about the easiest to tune.
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Originally Posted by jaylude22
(Post 5162001)
For the most part, most people leave the mid needle alone. Not really any need to mess with it. If you stick to using just the HSN and LSN, the O.S. engines are about the easiest to tune.
www.ebmods.com |
I beleive Hobog's motor came with his X2, so its possible the previous owner had tweaked the needles.....
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Originally Posted by Maximo
(Post 5162109)
I beleive Hobog's motor came with his X2, so its possible the previous owner had tweaked the needles.....
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The eb mods 2041 pipe is a little stronger on the bottom compared to the 2060. You can go to ebmods.com and compare dyno graphs of the v spec with both pipes. 2041 will be listed as a mielke 2041.
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Hobdog.. The 2060 pipe WILL do the trick. if you already have the 2050, i would suggest getting the ninja 2042 pipe which is the same as the OS 2060, but it's available pipe only, and a lil cheaper... buy the pipe only and use the L header from your 2050.. :nod:
The clutch your running is fine, providing it's new and works free with NO binding. I would run the 2060/2042 w/ L header, P4 plug, and a 8mm stack. The EB head button available from www.Tonysscrews.com is a great option for anyone looking for bolt on power. The button will not affect run-time or drive-ability...As you can see in the dyno graph on the http://www.rctech.net/forum/nitro-of...en-jx21-6.html thread the power-band is very smooth and consistent. The mid range needle can be used to adjust power curve if you are an experienced tuner.. Here is a good starting point as far as setting.. IDLE: 1 full turn from just closed LSN: 4-1/2 turns from closed MRN: 3-3/4 turns from closed "flush" 10 o'clock HSN: 3 turns from closed Tune your engine on the money with the HSN & LSN, shouldn't have to touch the idle much more then an hour if at all. THEN If you wanna adjust the mid,,, If you want more low end, lean your LSN an hour and richen your MRN an hour.... vis-versa ...the MRN and LSN work together.. Hope this helps! Good Luck! ps. the eb BP has no major +affect on any other OS other then the EB V spec which is no longer available. |
what breakin method do you use on the speed, one post earlier said they got 9 gallons, i would be happy to get 4, let me hear from ya.
jlo |
I have a couple of Speeds and I stop counting at 10 gal. For the money, they are some of the best engines on the market. And yeah I said for the money.....
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are you saying 10 gal, with no rebuild, thats awsome, what breakin method do you use and what temps do you run
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Originally Posted by mracer
(Post 5163150)
I have a couple of Speeds and I stop counting at 10 gal. For the money, they are some of the best engines on the market. And yeah I said for the money.....
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Originally Posted by jlo8864
(Post 5163068)
what breakin method do you use on the speed, one post earlier said they got 9 gallons, i would be happy to get 4, let me hear from ya.
jlo |
Originally Posted by jlo8864
(Post 5163225)
are you saying 10 gal, with no rebuild, thats awsome, what breakin method do you use and what temps do you run
No, I am saying 10+ gallons!! And the only screw I turned was the fuel screw. I was hobby stupid and thought it would run forever and I almost think it would. A friend finally convinced me it would die one day, so I bought another one and rebuilt the old one.... Just heat cycle it. Pro Twister breaks them in for me on a stand now but the in-car heat cycling will work. I was running it 185 - 200. |
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