EB Mods JS Engine
#1112
standard is very torquey, it hits hard then just keeps going. i got one used and am looking for ways to soften it up, way up. its almost undriveable even with a soft clutch. problem with the soft springs is it seems it eats up shoes quicker. i even have a super tall gearing on the rc8t, 14/48. track is usually pretty loose but on the days its sticks it will come in handy. i tried 2035, jp-3, 053 and by far the 086 suits the stock best.
#1113

Haley now uses 3023/axe header as well I believe..
#1114
#1116
Hi. The locations I would be running this motor if I purchase it is on a track that is tight. Not a lot of time to open up the engine. Occasionally, I would be running at Rescue Just outside of Sacramento, Ca I generally don't push my motors and the seem to last forever.
I also run O'donnell 30% Nitro and have had good success with this fuel.
Generally need something with great run times and a lot of bottom end.
How does this motor work in this category??
Thanks
I also run O'donnell 30% Nitro and have had good success with this fuel.
Generally need something with great run times and a lot of bottom end.
How does this motor work in this category??
Thanks
#1119
Race Prepped JS .21's went 1-2 in buggy and 1 in truggy yesterday at our local track. The truggy race was won on fuel mileage. There were roughly 5-6of them spread out through both classes, none of which had an issue and ran like champs.
#1120
Ok guys does anyone have a fresh serving of crow that I can have? I am going to need some to eat. 
I came on this thread a few weeks ago really upset with the performance of my JS Race Prep. I went as far as to call it junk and a paper weight. After rethinking what I was doing and some help from a local racer who really knows motors and tuning I couldn't be happier with this mill. It just flat out rips in my truggy. I have since put another gallon on it and haven't had a single problem. It is still a little cold natured to get started but once you get it up to temp hold on! It has never flamed out one time even at a big race two weeks ago when most everyone was flaming (100+ degrees outside) my JS kept screaming. On top of all of this I can get 12+ minutes in my truggy with the 086 pipe. Not sure how it gets any better than this.
With all of the above said I would like to formally apologize for my previous statements about this motor. I was wrong and shouldn't have said the things I said without giving it another chance with an experienced tuner.
Now if anyone can tell how to properly reduce the power of this thing I would appreciate it.
Waaaay too much power for me.

I came on this thread a few weeks ago really upset with the performance of my JS Race Prep. I went as far as to call it junk and a paper weight. After rethinking what I was doing and some help from a local racer who really knows motors and tuning I couldn't be happier with this mill. It just flat out rips in my truggy. I have since put another gallon on it and haven't had a single problem. It is still a little cold natured to get started but once you get it up to temp hold on! It has never flamed out one time even at a big race two weeks ago when most everyone was flaming (100+ degrees outside) my JS kept screaming. On top of all of this I can get 12+ minutes in my truggy with the 086 pipe. Not sure how it gets any better than this.
With all of the above said I would like to formally apologize for my previous statements about this motor. I was wrong and shouldn't have said the things I said without giving it another chance with an experienced tuner.
Now if anyone can tell how to properly reduce the power of this thing I would appreciate it.
Waaaay too much power for me.
#1121
Joined: Oct 2009
Posts: 2,547
From: Usa
Just Broke Myne in today.
Joe Told me to Run it Figure 8 style Big parking lot, for 45 mins at 0-30% Speed. Without shutting Engine off. So that is what I did. Kept temps At 200 never Above, and lowest were 155. I used a 1/10 tire foam to build n keep heat in. Didnt use a heat gun, said its worthless and now I understand why.(thank you Joe) I think It did or was 4 Full Tanks worth. Thing is still super tight, and Now Time to tune her. Sounds like she is going to be a beast.
7mm Venturi
P5 O.S. Glow Plug / Also have a P4
30% Byrons fuel
086 Ofna pipe/ Also have a 9886 which is better???
Joe Told me to Run it Figure 8 style Big parking lot, for 45 mins at 0-30% Speed. Without shutting Engine off. So that is what I did. Kept temps At 200 never Above, and lowest were 155. I used a 1/10 tire foam to build n keep heat in. Didnt use a heat gun, said its worthless and now I understand why.(thank you Joe) I think It did or was 4 Full Tanks worth. Thing is still super tight, and Now Time to tune her. Sounds like she is going to be a beast.
7mm Venturi
P5 O.S. Glow Plug / Also have a P4
30% Byrons fuel
086 Ofna pipe/ Also have a 9886 which is better???
#1122
Hi. The locations I would be running this motor if I purchase it is on a track that is tight. Not a lot of time to open up the engine. Occasionally, I would be running at Rescue Just outside of Sacramento, Ca I generally don't push my motors and the seem to last forever.
I also run O'donnell 30% Nitro and have had good success with this fuel.
Generally need something with great run times and a lot of bottom end.
How does this motor work in this category??
Thanks
I also run O'donnell 30% Nitro and have had good success with this fuel.
Generally need something with great run times and a lot of bottom end.
How does this motor work in this category??
Thanks
Ok guys does anyone have a fresh serving of crow that I can have? I am going to need some to eat. 
I came on this thread a few weeks ago really upset with the performance of my JS Race Prep. I went as far as to call it junk and a paper weight. After rethinking what I was doing and some help from a local racer who really knows motors and tuning I couldn't be happier with this mill. It just flat out rips in my truggy. I have since put another gallon on it and haven't had a single problem. It is still a little cold natured to get started but once you get it up to temp hold on! It has never flamed out one time even at a big race two weeks ago when most everyone was flaming (100+ degrees outside) my JS kept screaming. On top of all of this I can get 12+ minutes in my truggy with the 086 pipe. Not sure how it gets any better than this.
With all of the above said I would like to formally apologize for my previous statements about this motor. I was wrong and shouldn't have said the things I said without giving it another chance with an experienced tuner.
Now if anyone can tell how to properly reduce the power of this thing I would appreciate it.
Waaaay too much power for me.

I came on this thread a few weeks ago really upset with the performance of my JS Race Prep. I went as far as to call it junk and a paper weight. After rethinking what I was doing and some help from a local racer who really knows motors and tuning I couldn't be happier with this mill. It just flat out rips in my truggy. I have since put another gallon on it and haven't had a single problem. It is still a little cold natured to get started but once you get it up to temp hold on! It has never flamed out one time even at a big race two weeks ago when most everyone was flaming (100+ degrees outside) my JS kept screaming. On top of all of this I can get 12+ minutes in my truggy with the 086 pipe. Not sure how it gets any better than this.
With all of the above said I would like to formally apologize for my previous statements about this motor. I was wrong and shouldn't have said the things I said without giving it another chance with an experienced tuner.
Now if anyone can tell how to properly reduce the power of this thing I would appreciate it.
Waaaay too much power for me.
lol




