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-   -   EB Mods JS Engine (https://www.rctech.net/forum/offroad-nitro-engine-forum/316041-eb-mods-javascript-engine.html)

Maximo 04-28-2010 11:38 AM


Originally Posted by smokinu (Post 7332581)
thanks for the info fellas... i passed it along to single.
:cool:

like i asked though, would a 99t be better? or just stick with p4 os plugs?

The OD99 may work, as I have some guys who have used them...however in the higher compression modifieds they tend to wear our pretty quickly.. I think the filaments are maybe a little too thin for the applicationm, the OS plugs seem to be built a little beefier and seem to last a fair bit better....But the OD99 is definitely a step in the right direction and at least worth trying...However I may be speaking a little off base, as I have no experience with the JS engine...JPalesi is the guy to know for sure if the OD99 is compatible.....

smokinu 04-28-2010 11:38 AM


Originally Posted by jpalessi (Post 7332583)
you beat me to it.. :lol:
+1... to the tee.

odonnell 97t is a medium plug..

odonnell 99t is a cold plug.

os p3 is a "ultra hot"

os p4 is a "super hot"

i dont get it, the odonnell plugs must be labeled wrong or is it os wrong?

why would a super hot plug be better then a medium? when you say the medium plug from odonnell is hotter?

smokinu 04-28-2010 11:42 AM


Originally Posted by Maximo (Post 7332598)
The OD99 may work, as I have some guys who have used them...however in the higher compression modifieds they tend to wear our pretty quickly.. I think the filaments are maybe a little too thin for the applicationm, the OS plugs seem to be built a little beefier and seem to last a fair bit better....But the OD99 is definitely a step in the right direction and at least worth trying...However I may be speaking a little off base, as I have no experience with the JS engine...JPalesi is the guy to know for sure if the OD99 is compatible.....

on a main the p4 is 7 bucks so its 2 bucks more... lol... anyways, on a side note..
i run od 97t in my alpha engines. one plug was used to break in one motor then went about a gallon after that.
and is now in my other alpha that is being broken in. but i am changing it out before i start race tuning it..

i have had GREAT luck with the odonnell plugs lasting a while..
it dose not mean that os plugs are any less though. i just have motors that run well on the cheaper plugs.. :nod:

jpalessi 04-28-2010 11:42 AM


Originally Posted by Maximo (Post 7332598)
The OD99 may work, as I have some guys who have used them...however in the higher compression modifieds they tend to wear our pretty quickly.. I think the filaments are maybe a little too thin for the applicationm, the OS plugs seem to be built a little beefier and seem to last a fair bit better....But the OD99 is definitely a step in the right direction and at least worth trying...However I may be speaking a little off base, as I have no experience with the JS engine...JPalesi is the guy to know for sure if the OD99 is compatible.....

thanks for the assistance Neal you truly have more patience then I.. The OD 99 can work, but in my honest opinion its still too hot, and does not run or last nearly as long as a p4 or P5. I have buying and have great success with P5's and plan to keep it that way.

Maximo 04-28-2010 11:44 AM


Originally Posted by smokinu (Post 7332599)
odonnell 97t is a medium plug..

odonnell 99t is a cold plug.

os p3 is a "ultra hot"

os p4 is a "super hot"

i dont get it, the odonnell plugs must be labeled wrong or is it os wrong?

why would a super hot plug be better then a medium? when you say the medium plug from odonnell is hotter?


different companies rate things differently...since there are quite a few factors that determine a glowplugs timing its difficult to have a standardized rating system..... the things that affect a glowplugs heat range are..mass of glowplug body, the more mass it has, the more heat it stores, filament diameter, the thinner the filament the hotter, as well as filament exposure in the plug body...the more exposed the filament, the hotter the plug...and lastly filament composition and coating... The higher the amount of Titanium, the more reactive the the plug is.......... So unfortunately it basically leaves us to trial and error to find the right plug...from my experience all the OD plugs are very hot, with very large bodies...... even tho the OS P4 is listed as hotter, it seem to function cooler......... I am not by any eans a glowplug expert, so this is the best I can offer on the subject...

smokinu 04-28-2010 11:47 AM


Originally Posted by Maximo (Post 7332622)
different companies rate things differently...since there are quite a few factors that determine a glowplugs timing its difficult to have a standardized rating system..... the things that affect a glowplugs heat range are..mass of glowplug body, the more mass it has, the more heat it stores, filament diameter, the thinner the filament the hotter, as well as filament exposure in the plug body...the more exposed the filament, the hotter the plug...and lastly filament composition and coating... The higher the amount of Titanium, the more reactive the the plug is.......... So unfortunately it basically leaves us to trial and error to find the right plug...from my experience all the OD plugs are very hot, with very large bodies...... even tho the OS P4 is listed as hotter, it seem to function cooler......... I am not by any eans a glowplug expert, so this is the best I can offer on the subject...

thanks for the info neal, :nod:

Peter Martin 04-28-2010 11:47 AM

Here in SoCal we have at least 15 people running the JS engines with great success. The P5 plug is important in warm weather due to timing and deck height. We have tried the ODs and they are just too hot. Good plugs...just not for this engine.

The 086 pipes work well....most are running it. I run the 9901...personal preference...really good in the buggy.

jpalessi 04-28-2010 11:48 AM


Originally Posted by smokinu (Post 7332599)
odonnell 97t is a medium plug..

odonnell 99t is a cold plug.

os p3 is a "ultra hot"

os p4 is a "super hot"

i dont get it, the odonnell plugs must be labeled wrong or is it os wrong?

why would a super hot plug be better then a medium? when you say the medium plug from odonnell is hotter?

different manufactures so they are going to label them accoring to how hot they are for their line of plugs... point being is one manufactures hot maybe another's medium. in my experance the 99t is a touch hotter then a p4 and i beleive the p4 is boarder-line too hot.

Originally Posted by smokinu (Post 7332612)
on a main the p4 is 7 bucks so its 2 bucks more... lol... anyways, on a side note..
i run od 97t in my alpha engines. one plug was used to break in one motor then went about a gallon after that.
and is now in my other alpha that is being broken in. but i am changing it out before i start race tuning it..

i have had GREAT luck with the odonnell plugs lasting a while..
it dose not mean that os plugs are any less though. i just have motors that run well on the cheaper plugs.. :nod:

Neal just explained this.. our engines have higher compression ratios, then what your running.

Shoaf85 04-28-2010 11:48 AM

Each brand has their own definition of hot and cold. Just know that the medium/hot 97t is about the same as the p3, acutally a bit hotter!

EDIT: Sorry Joe we typed at the same time, LOL!

jpalessi 04-28-2010 11:49 AM

Neal
 
damn! how many words can you type a min!?! :lol:

Maximo 04-28-2010 11:51 AM


Originally Posted by jpalessi (Post 7332648)
damn! how many words can you type a min!?! :lol:

Fastest Chickens in town bro !!!;)

jpalessi 04-28-2010 11:52 AM


Originally Posted by Maximo (Post 7332652)
Fastest Chickens in town bro !!!;)

:lol::lol: i see that!

jpalessi 04-28-2010 11:52 AM


Originally Posted by Shoaf85 (Post 7332644)
Each brand has their own definition of hot and cold. Just know that the medium/hot 97t is about the same as the p3, acutally a bit hotter!

EDIT: Sorry Joe we typed at the same time, LOL!

dont worry neal beat us both!

olhipster1 04-30-2010 09:26 AM

Thank you
 
just wanted to thank
Ron Geotter "Goat"
for steering in the EB Mods direction.
bought a Full Mod...
and everyone I let try my buggy say they love the engine...
tons'Of Power...

I'm new to nitro and this made it super easy to get started.

Thanks EB MODS...

KThatcher 04-30-2010 10:41 AM


Originally Posted by Peter Martin (Post 7332638)
Here in SoCal we have at least 15 people running the JS engines with great success. The P5 plug is important in warm weather due to timing and deck height. We have tried the ODs and they are just too hot. Good plugs...just not for this engine.

The 086 pipes work well....most are running it. I run the 9901...personal preference...really good in the buggy.


Peter helped me get my JS tuned with the p5 at rev and I was pushing ten mins with the losi re11 pipe..

thanks again Peter.

Peter Martin 04-30-2010 11:48 AM

Anytime Kevin.

moosemachine 04-30-2010 12:08 PM

Wuhuuu...
 
Attended first round (out of 5) of the Danish National Championship in Truggy last saturday.

Qualified 8 and went directly to the semi's. Unfortunately missed out on the final as I ended up 6 in he semi and only top 5 went on to the final.

Anyway, I'm driving the full mod and it really did a good job. Very reliable and mindblowingly fast. Definitely as fast as any other engine in the pack

Have run three gallons through it and all is still good.

Jacob :p

nitro crazy 05-01-2010 08:54 AM

help
 
just wanting some opinions on engines, i am trying to choose between the limited edition v-spec and the full mod js motor, i kinda like the js motor but the v-spec and js are the same price. which should i get, thanks...:tire:

Alan D. 05-01-2010 09:10 AM

JS with out a doubt. Besides the fact that the JS will out last the V-Spec, the JS has way more performance than the limited edition V-Spec. A full mod motor for $329 you can't beat that value. My Race prep more than blows my ninja out of the water.

nitro crazy 05-01-2010 07:43 PM

that's my choice, js perfect. Anybody have any pipe suggestions for a truggy. I have got a j-p3 and a o.s. 2050 pipe already will those work ?... thanks for the help...

jbright33 05-01-2010 10:25 PM

well just got back from racing and mark up another victory for js. got 1st with truggy and 2nd with buggy with another js coming in 1st in buggy oh and 2nd in truggy :nod::nod: ebmods js mopin up the east coast.....

jbright33 05-01-2010 10:27 PM


Originally Posted by nitro crazy (Post 7347091)
that's my choice, js perfect. Anybody have any pipe suggestions for a truggy. I have got a j-p3 and a o.s. 2050 pipe already will those work ?... thanks for the help...

nitro crazy get a dynamite 086 cant go wrong with that. just dont put the jp-3 pipe on the jp's are like the only pipe that dosnt seem to perform..

blktransam 05-02-2010 08:01 AM

nitro crazy- I have a 086 I will sell for 40.00 shipped includes orig. box and everything ran for 3 tanks..

I like my race prep over my full mod but that is just me all personal prefference :)

nitro crazy 05-02-2010 10:01 AM

awsome, if you still got it i'll take it. Just e-mail me and we can set up payment arrangement's. [email protected] if you got any pics that would be cool, if not no big deal i'll take it. Thanks....

khaliffen 05-02-2010 01:31 PM

measures on bearings
 
Hi,

Can anyone tell me the size of the front and rear bearing in the JS engine:confused:? I've tried looking it up but i can't find it, and I don't want to rip my engine apart to find out.

Thank in advance.

/Anders

Peter Martin 05-02-2010 03:48 PM

7x19x6 and 14x25.4x6

Black 05-02-2010 07:30 PM

Well I have been running the JS motors for a little while and they performed great once again today at the RC Pro Series Mid-South Division race. I managed to jump to the lead and win in the Open Buggy class.

Was running the 7mm restrictor, 2035 pipe, 7075 shoes with 1.0 springs.

Marcus Black

pballer2777 05-02-2010 07:57 PM

just ordered a race prep with a dyn053 pipe for my truggy. anybody running a race prep in a losi 8t 2.0. just want to know what peopel think of it in a truggy.

jbright33 05-02-2010 09:42 PM

race prep works great in truggy thats what i use,joe uses and even edd himself. along with alot of other ppl

smokinu 05-02-2010 10:32 PM

my buddy did some pipe testing today on his full mod he liked the jp3

i let him borrow a 0801 from sstech/alpha plus, hopefully he reports back on that!

hambone 05-02-2010 10:41 PM

I found the pipe i'm really liking. I put a nova 9853SS chamber on the dynamite 086 manifold and does that thing fly. I have found in testing with another engine that the 053 dyn doesn't perform nearly as well as the 9853SS. If it was any stronger on the bottom the buggy would be undriveable and the topend is outta sight. Just doesn't stop pulling. Can't wait for the .23 truggy engine to get here.

khaliffen 05-03-2010 03:30 AM


Originally Posted by Peter Martin (Post 7349815)
7x19x6 and 14x25.4x6

Thanks

/Anders

moosemachine 05-03-2010 05:59 AM


Originally Posted by nitro crazy (Post 7347091)
that's my choice, js perfect. Anybody have any pipe suggestions for a truggy. I have got a j-p3 and a o.s. 2050 pipe already will those work ?... thanks for the help...

Don't know about the J-P3 and OS 2050, sorry.

I'd suggest the dyn086 or NR 9901, both with a short header (tried the long header but it did put too much of a restriction on the max rpm (besides, you won't need anymore bottom end than the JS already delivers, not even for truggy.

Jacob

JS EB Mods Fully Modded / HB D8T / Spektrum DX3R

vince7870 05-03-2010 06:25 AM

Not sure if you guys caught my review in rcdriver but you will be overjoyed if you run the 2041 pipe. Same or more power than 86 with leaner settings giving you better run time and better throttle response. Currently myself Joe and a few other fast guys here in the northeast have switched and could not be happier. Stop wasting time and money. Get the reckwards 2041 from amain or try to find the old ebmods 2041.

I put a race prep in my truggy this weekend and it was dialed. It won't come out. :-)

My full mod gives my buggy wings:-) like the redbull commercial!

jpalessi 05-03-2010 06:53 AM


Originally Posted by vince7870 (Post 7352612)
Not sure if you guys caught my review in rcdriver but you will be overjoyed if you run the 2041 pipe. Same or more power than 86 with leaner settings giving you better run time and better throttle response. Currently myself Joe and a few other fast guys here in the northeast have switched and could not be happier. Stop wasting time and money. Get the reckwards 2041 from amain or try to find the old ebmods 2041.

I put a race prep in my truggy this weekend and it was dialed. It won't come out. :-)

My full mod gives my buggy wings:-) like the redbull commercial!

+1

wallot 05-03-2010 07:55 AM

my engine died this weekend. during a main on a muddy track something stopped flywheel on the spot after landing a double and hitting the throttle for the next one. conrod snapped at the strongest spot. either too much mud or I hit a rock. poor engine. everyone was amazed with it.

will pick up a new one on my US trip next week. will try race prep this time so I can compare and it it is too harsh for a buggy i will be back in the US in June to get a full mod again

one question - when I took the engine apart to see what went wrong I noticed lot of dirt between the crankcase and head button. Is it because of shimming for 30% nitro leaves there a small gap?

blktransam 05-04-2010 06:37 PM

JS engine
 
wrong place

jpalessi 05-04-2010 06:49 PM

:tire::tire:

jpalessi 05-04-2010 06:50 PM


Originally Posted by wallot (Post 7352964)
my engine died this weekend. during a main on a muddy track something stopped flywheel on the spot after landing a double and hitting the throttle for the next one. conrod snapped at the strongest spot. either too much mud or I hit a rock. poor engine. everyone was amazed with it.

will pick up a new one on my US trip next week. will try race prep this time so I can compare and it it is too harsh for a buggy i will be back in the US in June to get a full mod again

one question - when I took the engine apart to see what went wrong I noticed lot of dirt between the crankcase and head button. Is it because of shimming for 30% nitro leaves there a small gap?

radek, where did u buy your current engine? North America or Czech?

jpalessi 05-04-2010 07:37 PM

my results from sunday.
 
1 Attachment(s)
:D:p

the track was awesome all day, and held up really well considering we had 154 entries.. My Truck was awesome too! =) check out the layout.
http://www.youtube.com/watch?v=GxUPmGRTZ7Q

I managed to work my way to second place on the last lap after being punted to the fluff in the first corner which put me dead last. :) the 10+ min pits really helped!


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