R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 07-12-2009, 09:53 AM   #1
Tech Regular
 
Join Date: Jun 2009
Location: Warren, PA
Posts: 463
Trader Rating: 3 (100%+)
Default Jammin JPX 21 pipe

I just bought my first .21 after running .28s for years. I race on a small, but techincal track and was wondering about the best pipe to fit my new Jammin .21. I have already a Jp-1 and a 3, also a Dynamite 086.
nothin special is offline   Reply With Quote
Old 07-12-2009, 10:20 AM   #2
Tech Lord
 
Jaz240's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2008
Location: Dwindle city
Posts: 12,492
Trader Rating: 52 (100%+)
Default

053 pipe will give you more bottom end, but the engine really screams on top with the 086
__________________
nothing to see here................................
Jaz240 is offline   Reply With Quote
Old 07-12-2009, 01:35 PM   #3
Tech Master
 
sideways88's Avatar
 
Join Date: Apr 2007
Posts: 1,097
Trader Rating: 34 (100%+)
Default

i run mine on a jp3 pipe and it runs really good. gots ton of power from bottom to top.
__________________
;)
sideways88 is offline   Reply With Quote
Old 07-12-2009, 02:10 PM   #4
Tech Addict
 
Join Date: Feb 2009
Posts: 609
Trader Rating: 1 (100%+)
Default

I also run the jp3 & it's good. The 086 had great bottom but not much mid & NO top. I am going to try the 053 next race & see how it does. BTW you did notice in the instructions that it is shimmed for 20 % not 30 %. I have talked to several guys that didn't know & ran 30 % that complained that it only lasted 1 gallon. Just thought i'd give you a heads up.
romax is offline   Reply With Quote
Old 07-12-2009, 02:15 PM   #5
Tech Addict
 
Join Date: Nov 2008
Location: tallahassee, FL
Posts: 695
Trader Rating: 29 (100%+)
Default JPX .21

how do you shim it for 30%? pm me. id like to know more becuase i use the JPX .21 and run 30%
__________________
kyosho mp9:novarossi 21-4C, nova 2084, 7955TG, dx3R
slayyer is offline   Reply With Quote
Old 07-12-2009, 02:54 PM   #6
Tech Master
 
sideways88's Avatar
 
Join Date: Apr 2007
Posts: 1,097
Trader Rating: 34 (100%+)
Default

also would like to know how many shims should you use on the jpx. i got mine free form a buddy and all it needed was a pinch. but i switched it to a standard plug and it had to be shimmed like my picco evo2 was. but i want to put it back to turbo but dont have the shimes any more.

thanks


ps sorry to thread jack
__________________
;)
sideways88 is offline   Reply With Quote
Old 07-12-2009, 05:58 PM   #7
Tech Regular
 
Join Date: Apr 2008
Posts: 425
Default

i have been running the jammin engines for years and i used to check the deck hieght and it was always between 21 and 24 thousanths so i dont even bother now and my motors last forever and i run 30% werks.

i also run the JP1 i feel like the motor is just really crisp with this pipe. if you have a very large track then i would recomend the JP4. npote i have not tried anything but teh Jammin pipes but i heard the 053 works really well also.
__________________
Manufacturers Cup

questions please e-mail Manufacturerscup@gmail.com don't PM (i dont ever check it)
Manufacturercup is offline   Reply With Quote
Old 07-12-2009, 06:07 PM   #8
Tech Prophet
 
houston's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2004
Location: portland OR
Posts: 15,088
Trader Rating: 91 (100%+)
Default

Quote:
Originally Posted by Manufacturercup View Post
i have been running the jammin engines for years and i used to check the deck hieght and it was always between 21 and 24 thousanths so i dont even bother now and my motors last forever and i run 30% werks.

i also run the JP1 i feel like the motor is just really crisp with this pipe. if you have a very large track then i would recomend the JP4. npote i have not tried anything but teh Jammin pipes but i heard the 053 works really well also.
hows the mileage ?

luv ya baby
__________________
TEAM FUSION X ENGINES / TEAM BYRON ORIGINALS / TEAM PROLINE RACING TIRES / TEAM SICK GRAPHICS /TEAM KYOSHO / things I support: COMP HEAT DEALER /TEAM LUNSFORD/ FUSIONX™ USA / TEAM KYOSHO / "H.E.S."™ / BYRON FUELS / RC-OMGUSA/KICWEBDESIGNZ/AKA TIRES/PROLINE RACING TIRES /RAYA RACING/BUKU POWER CLUTCH/M2CRACING/special thanks to STAV and JIM HOTTIGREENMOUNTAINGRILLS.COM
houston is offline   Reply With Quote
Old 07-12-2009, 09:12 PM   #9
Tech Master
 
j_blaze14's Avatar
 
Join Date: Feb 2008
Location: Tampa, Fl
Posts: 1,693
Trader Rating: 34 (100%+)
Default

i'm using the hobao 21 pipe (off 8.5 kit) and am getting about 10 minutes (truggy) in the 250's, plenty from bottom to top and no one will pass me. next i will try the jp-4 and compare.
__________________
aGama A8 EVO - Werks B2 - Sidewinder
aGama A8E - TrackStar 150a, 2560kv, 3 and 4 cell
FlySky GT3B, Turnigy HV servos, SKY Lipos
AKA, Proline, Hotbodies Rubber
Elite Performance - HORRC.com
j_blaze14 is offline   Reply With Quote
Old 07-12-2009, 09:32 PM   #10
Tech Master
 
sideways88's Avatar
 
Join Date: Apr 2007
Posts: 1,097
Trader Rating: 34 (100%+)
Default

with my jp3 i only get like 7:30 and thats in a buggy.
__________________
;)
sideways88 is offline   Reply With Quote
Old 07-12-2009, 09:36 PM   #11
Tech Champion
 
Maximo's Avatar
R/C Tech Elite Subscriber
 
Join Date: Jan 2005
Posts: 7,900
Trader Rating: 11 (100%+)
Default

086 is by far the best pipe.....
Maximo is offline   Reply With Quote
Old 07-12-2009, 09:58 PM   #12
Tech Prophet
 
houston's Avatar
R/C Tech Elite Subscriber
 
Join Date: Sep 2004
Location: portland OR
Posts: 15,088
Trader Rating: 91 (100%+)
Default

Quote:
Originally Posted by Manufacturercup View Post
i have been running the jammin engines for years and i used to check the deck hieght and it was always between 21 and 24 thousanths so i dont even bother now and my motors last forever and i run 30% werks.

i also run the JP1 i feel like the motor is just really crisp with this pipe. if you have a very large track then i would recomend the JP4. npote i have not tried anything but teh Jammin pipes but i heard the 053 works really well also.
Rick?
__________________
TEAM FUSION X ENGINES / TEAM BYRON ORIGINALS / TEAM PROLINE RACING TIRES / TEAM SICK GRAPHICS /TEAM KYOSHO / things I support: COMP HEAT DEALER /TEAM LUNSFORD/ FUSIONX™ USA / TEAM KYOSHO / "H.E.S."™ / BYRON FUELS / RC-OMGUSA/KICWEBDESIGNZ/AKA TIRES/PROLINE RACING TIRES /RAYA RACING/BUKU POWER CLUTCH/M2CRACING/special thanks to STAV and JIM HOTTIGREENMOUNTAINGRILLS.COM
houston is offline   Reply With Quote
Old 07-13-2009, 12:05 PM   #13
Tech Regular
 
Join Date: Apr 2008
Posts: 425
Default

thats me what up monty?

Rune time- i get anywhere from 8 1/2 to 11 depending on the track and how heavy on the trottle i am. lol. i can pit at 9min on most tracks no problem. i have pitted at 10 at one race but im just scared to do it most of the time.

the other day i went out and drove my car as hard as i could and i got 9min 40 sec.

what people need to realize about runtime is that the number one factor is you throttle finger. if you drive smooth you can get great milage. if you are not the best driver on the planet and you can't go full wood in a lot of spots that the top drivers can, than you will get better milage. if you are full punch everywhere than run time will not be so good. track size is also a very large factor. i have heard some people talk about getting 15+ min and i would like to be at the track to see that. i could put around and probably get 20min. lol. i think run time in real driving condition without restricting the throttle endpoints is whats important.

are there engines that get better milage than the Jammin .21? yes but they will cost you twice as much and all you will gail is runtime the jammin engine have all kinds of power and great reliability.
__________________
Manufacturers Cup

questions please e-mail Manufacturerscup@gmail.com don't PM (i dont ever check it)
Manufacturercup is offline   Reply With Quote
Old 07-13-2009, 12:46 PM   #14
Tech Master
 
8&stuff's Avatar
 
Join Date: Oct 2008
Location: In.
Posts: 1,401
Trader Rating: 55 (100%+)
Default

i just bought a jpx(should have tomorrow). i have all pipes listed above w/manifolds etc...so il run the 086 with bouble bend short(shows like 10+ minutes). where im torn is with an os plug. should put in jpx thread but this is current. im gonna just snug a p3(i have a half dozen). you guys really sorted out the probs of os plugs in jpx thread...am i asking for problems or what?
__________________
Mark Buecker
8&stuff is offline   Reply With Quote
Old 07-13-2009, 12:51 PM   #15
Tech Addict
 
Join Date: Nov 2008
Location: tallahassee, FL
Posts: 695
Trader Rating: 29 (100%+)
Default

hey, i would like to know what glow plug everyone uses in their JPX .21. i use the picco hot turbo plug. $20 a piece. they work great. but price is outrageous!
__________________
kyosho mp9:novarossi 21-4C, nova 2084, 7955TG, dx3R
slayyer is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Jammin JPX .21 heeltoedrver Nitro Off-Road 165 08-25-2009 01:02 PM
jammin jpx .21......whats the BEST pipe? pwnzor Nitro Off-Road 30 01-10-2009 11:50 PM
Looking for a new .21 engine for offroad buggy. supralative Nitro Off-Road 54 07-31-2008 02:06 AM
For Sale: Jammin' X1-CR Factory Team/JPX .21 Engine/JP-3 Pipe Chris Mac R/C Items: For Sale/Trade 7 10-06-2007 08:57 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 01:56 PM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net