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Old 11-03-2006, 10:10 AM   #721
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Can anyone recommend a good online store for JP Engines replacement parts? Specifically the JP/NovaRX-WC .21
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Old 11-03-2006, 10:14 AM   #722
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Can anyone recommend a good online store for JP Engines replacement parts? Specifically the JP/NovaRX-WC .21
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Old 11-03-2006, 05:45 PM   #723
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Can anyone recommend a good online store for JP Engines replacement parts? Specifically the JP/NovaRX-WC .21
Sad to say that JP does not make replacement parts for that particular motor.
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Old 11-03-2006, 09:11 PM   #724
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Wow, guess when you make good engines no one really cares much about customer support afterwards. Oh well, ill just run it till it pops.
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Old 11-04-2006, 02:41 AM   #725
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Originally Posted by tunerjetta29
Wow, guess when you make good engines no one really cares much about customer support afterwards. Oh well, ill just run it till it pops.
Nope is a matter of practical terms. That engine is based in one model from 4 or 5 years old and JP doesn't have spare parts for that much older engines. You may order spare parts from NovaRossi and retrofit to your engine if you insist on running it (but before spending the bucks, check if the crankshaft is on the wear limits, bearings and others.
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Old 11-04-2006, 05:45 AM   #726
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www.brooklynhobbies.com has plain ol' WC01 set's. They'll work just fine in that JP.
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Old 11-09-2006, 11:01 PM   #727
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I agree...Just get a nova piston and sleeve, and you should be good. The real power in a mod motor comes from the crank. If you have a JP crank, good bearings, and you have one hell of a motor.
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Old 11-09-2006, 11:46 PM   #728
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Yep actually its one of their Team Engines from 03 that was never run. It is brand new. I liked my old stock Kangaroo engine so much that i wanted to get the parts to rebuild this one before they completely disappear.
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Old 11-17-2006, 05:09 PM   #729
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Hi. There are plenty of spares for that engine at JP, but also you can use the group (piston-sleeve and underhead) of R01 or R03 (7 or 8 ports version). The conrod is the same also, newer versions but same size.

If you use a r01 group you can save your underhead (although the piston-sleeve from jp here come also with conecting rod and underhead). In fact 2003 WC has the same internals as FX21R01, is almost the same engine with JPFX logo instead of NOVAJP logo.


If you use R03 internals (7 or 8 ports) YOU CANNOT USE your WC underhead, R03 under head enter deeper in the crank case and the piston is shorter. Also when you buy a R03 rebulding kit comes with piston-sleeve,conecting rod and underhead, so no problema at all.


Using the R03 kit in your 2003WC will increase performance close to a total R03 engine, the mileage will be reduced a bit , so think in using 8.5mm air reducer instead of the 9mm that came with old WC engines.

I've been using several R03 ceramic bearing engines (4 engines) these season and also i rebuild an old WC as 5h engine to use as training engine, and I ended using that rebuilt engine in one national A-Main, I ensure the JP WC rebuilt with R03 internals performs really nice. Of course before check the geometry of the crack shaft pin and bearings, i also changed both bearings in the rebuild but it was worthy.


PD: This kind of rebuild is not an experiment , JP itself says it fits perfectly.

PD2: JP RX21 WC's were probably one the best engines ever made, in fact japaneese top drivers still were using them not long ago (2005). I race JP engines since 2003, used a lot of R03 in 2005-2006 and WC is not much slower than actual R03 or jpnova plus35.

Best Regards

Last edited by A-RASSS; 11-17-2006 at 05:20 PM.
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Old 12-01-2006, 12:36 AM   #730
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Quote:
Originally Posted by A-RASSS
Hi. There are plenty of spares for that engine at JP, but also you can use the group (piston-sleeve and underhead) of R01 or R03 (7 or 8 ports version). The conrod is the same also, newer versions but same size.

If you use a r01 group you can save your underhead (although the piston-sleeve from jp here come also with conecting rod and underhead). In fact 2003 WC has the same internals as FX21R01, is almost the same engine with JPFX logo instead of NOVAJP logo.


If you use R03 internals (7 or 8 ports) YOU CANNOT USE your WC underhead, R03 under head enter deeper in the crank case and the piston is shorter. Also when you buy a R03 rebulding kit comes with piston-sleeve,conecting rod and underhead, so no problema at all.


Using the R03 kit in your 2003WC will increase performance close to a total R03 engine, the mileage will be reduced a bit , so think in using 8.5mm air reducer instead of the 9mm that came with old WC engines.

I've been using several R03 ceramic bearing engines (4 engines) these season and also i rebuild an old WC as 5h engine to use as training engine, and I ended using that rebuilt engine in one national A-Main, I ensure the JP WC rebuilt with R03 internals performs really nice. Of course before check the geometry of the crack shaft pin and bearings, i also changed both bearings in the rebuild but it was worthy.


PD: This kind of rebuild is not an experiment , JP itself says it fits perfectly.

PD2: JP RX21 WC's were probably one the best engines ever made, in fact japaneese top drivers still were using them not long ago (2005). I race JP engines since 2003, used a lot of R03 in 2005-2006 and WC is not much slower than actual R03 or jpnova plus35.

Best Regards

i have a jp nova rx21 wc(kangaroo)team2002,will the jPfx21RO3 piston/sleeve/conrod fit?and where can i buy them?
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Old 12-05-2006, 10:39 AM   #731
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Quote:
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i have a jp nova rx21 wc(kangaroo)team2002,will the jPfx21RO3 piston/sleeve/conrod fit?and where can i buy them?
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Old 12-07-2006, 07:23 AM   #732
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Quote:
Originally Posted by moy
i have a jp nova rx21 wc(kangaroo)team2002,will the jPfx21RO3 piston/sleeve/conrod fit?and where can i buy them?
Sure, but you HAVE to use a R03 underhead.

The kit of R03 internals come (at least here in Spain) with piston , sleeve, conrod, underhead and shims (0.6mm).

If you buy the kit just install it all, if you only have piston sleeve conrod of R03 you must buy also the underhead.

I dont know which air reducer you use in your JPWC, stock came with 9 mm (black). With R03 internals probably you'll need to switch to 8.5 mm reducer (blue).

Where to buy them in the states i dont know, but in any shop which sell JP products they must have spares, try broocklyn, give a call to ritchie, or maybe in fastnfuriousrc.

Best regards.
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Old 12-07-2006, 09:07 AM   #733
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Quote:
Originally Posted by moy
i have a jp nova rx21 wc(kangaroo)team2002,will the jPfx21RO3 piston/sleeve/conrod fit?and where can i buy them?

Team Kamikaze sells a lot of the JP products
great selections and great service
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Old 12-07-2006, 11:52 PM   #734
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Quote:
Originally Posted by A-RASSS
Sure, but you HAVE to use a R03 underhead.

The kit of R03 internals come (at least here in Spain) with piston , sleeve, conrod, underhead and shims (0.6mm).

If you buy the kit just install it all, if you only have piston sleeve conrod of R03 you must buy also the underhead.

I dont know which air reducer you use in your JPWC, stock came with 9 mm (black). With R03 internals probably you'll need to switch to 8.5 mm reducer (blue).

Where to buy them in the states i dont know, but in any shop which sell JP products they must have spares, try broocklyn, give a call to ritchie, or maybe in fastnfuriousrc.

Best regards.
thanks for the info man!
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Old 12-08-2006, 05:25 AM   #735
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u R wellcome bro

Hope your WC will be soon racing
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