Being that M2C stopped making that flywheel 3 years ago I'd say it's time to replace that whole clutch system. Might I suggest this one: http://www.m2cracing.com/product.sc?...&categoryId=46 :nod:

looks like the old carb did not help at all. engine was behaving strangely on saturday.

after few minutes it was again stalling on a long straights (temp was 123C after 10minutes) did richen HSN. Temp went to 105C but no real change in behavior.

I dont understand why in one lap the engine is ballistic with no issues and in the next one it just does not work properly.

Im I right that the only differense between Race prep and the Stock engine, is that Race prep is broke in?

prity much:nod:

That's my understanding and I'm fairly sure it's correct on this;)

wallot sounds like your idle and low speed are not set right..

and yes only dif from stock and rp is that the rp comes broken in. even thought stock dosnt come broken in it dosnt leave edds shop till he inspects it and shims the head properly.

Hey J Bright what temps are you getting?

I am not Jbright but I am temping at 190 to 200 on my Full Mod. It gets 10 mins easy in my T 2.0. I pitted at 9:30 yesterday and made the next 10:30 easily. I did a dry run test and it made 12 mins to completely dry. I put a new plug in before the main and then checked it after, it looked almost new, just a light gold tinge on the face of the plug. The tune is very close, where before it was too fat on bottom. The plug face was brownish black and the coil was becoming pull distorted. I could not ask for more out of this engine.

im gonna order one friday what pipe workes best with the race preped

086 works great and is cheap. The 9901 will give better millage, but is more expensive.

or what i like best. 2041 awesome throttle response and great runtime.

already got dynamite 086 ill try that pipe first then thanks

what can be wrong with the tune? on my previous engine (the one with snapped conrod thanks to something stopping flywheel at max revs) the carb worked great No issues at all.
also the engine worked great during testing and then during a race it just started to do the same things as with the carb it came with. the LSN should be about right as the acceleration is great. Idle is open about 1/8 turn from stock maybe 1/4 at most.

engine is about 220F after 7 minute run at the track.

try putting the needles back to factory....flush on top and bottom

Do you think Ed will finally order some now that you team drivers are running them?

consistency issue
 

I ran My JS race Prep this weekend and got some inconsistent temps.

Heat 1 250*
Heat 2 225
Heat 3 250
20 Min Main came off @ 225

I did NOT touch either needle the whole night and the air temps were gradually dropping from 90* early eve to an 83* for main. Engine runs fine. Is a bit of a fuel hog, but i figure thats due to the 97T plug i had in it ( no choice)

IS this normal ?

has the Dynamite 086 pipe in a AE truggy with JC punisher body

JS Engines
 

So, who else out there is having problems getting their engines from EB mods, both warranty issues, and new engines ordered? Im getting a little frustrated. As a hobby shop owner, I cant think of a better way to hurt a business then this.

No, Im not starting a thread war, I am just wondering if its an ongoing issue, or if this is just bad luck on mybehalf.

Ive had several conversations with Ed now, and he is not following through with what he is telling me.

Tony

We just received 4 race preps. To date we have not had any warranty issues. I know a new shipment of engines is due soon.

That's normal. Air temp, humidity, cloud cover, traction and many other things change heat to heat. Don't worry so much about engine temp. The only time I ever temp an engine is to make sure it's under 300:ha:

JS Engines
 

I spoke with Ed first thing this morning after my post. He is taking care of what needed addressed. Wish everyone the best!

T

Thanks:tire:

is their a Randy Cooper in here?

I have one of these but been running the 086 Dynamite in buggy cause you recommended it. Going to venture into Truggy class(only been racing buggy so far this year) and this(2041) is what ill be running. Ive been on the podium every week in buggy this season since going EBMods.Time to get in Truggy and rep.

Ill be ordering engines in the next week or 2 Joe. Been battleing a feild of B5's all season and I think Ive changes some minds.:nod: Prolly be get 2 of each version. Working on getting the cash together now.

Im on gallon 6 of my Full Mod JS. ABSOLUTELY no issues what so ever. Hands down the best engine Ive ever run. Running P4 plugs, Dynamite 086 pipe and get 9-10 minute run times in buggy depending on surface and temping 230 consistantly.

R Griffith/ HarmonyHills

Alessi you have PM

thanks Ed for getting my Engine back to me and sealing it all up along with changing out the case as my old one was worn from my drive shaft...

Anyone looking for a Full Mod? I have one here got o this link.
http://www.rctech.net/forum/r-c-item...-086-pipe.html
And for everyone out there. Im a team driver and have had a raceprepped in my truggy since January. One of the first JS motors to be released. Itis going on at least 6 gallons. It has a ton of compression and holds a perfect tune every race day. Never have to worry about it. It will go easly 10 mins on fuel as well. So yea as there may be some motors out there with issues. I know there are alot of them that run perfect.
Have fun at the races.

so why again are you selling the motor

he is cutting back to 1 class for the summer and getting rid of excess inventory.

ur thread says it has 1.5 gallons and up there u say it has at least 6 gallons? me confused :)

the full mod he is selling has 1.5 gal. the race prep he has been running since jan. has 6 gal.

Is the 2041 the pipe you ran 2 weeks ago at wolcott hobbies??? If so, the engine/pipe combo is a monster, it ran all day and it ran hard.

yep that was the 2041. Only it was a prototype .23 truggy engine. :sneaky:

has anyone tried the odonnell 77t plugs if so how did they do compared to os p3 or p4

77t is a very hot plug. the coldest OD plug is too hot for the js imo.

WOW didnt know that ill pick up some p4 or p3 plugs which one is better

p3 is way too hot, p4 is borderline too hot but works. p5 is best imo for most conditions. Hi humidity p4.

im in AZ and its 100 degrees now and not much for humidity so ill go with p5 thnx for the info Joe have good one

no problem.. yea p5 in AZ no doubt... good luck!

Oh man, when is this .23 hitting the shelves? These JS engines are awesome. My truggy does not need anymore than the .21 in it but if you guys think the .23 is a good idea, I do too. Need some endurance testing done? Bring one down to the Hut and I will run a gallon straight through for you, no charge :tire: :)