Jammin JPX 21 Plus ( new)
#227
I haven't tested for run time and I have pitted after the 9 minute mark without trying to get long runs. I didn't hear my pit man when he attempted to bring me in at 7 minutes. I am running stock restrictor, 30%, with an 806 pipe. Oh, I am hard on the throttle also. I am sure I could get easily over 10 minutes with this engine without too much trouble.
I may just work on it this weekend.
I may just work on it this weekend.
Last edited by petevette; 03-08-2010 at 08:25 PM. Reason: typo
#229
I am from South Florida. We race year round except when there is a hurricane, well Category 3 or higher anyways.
Yeah, report back I will probably do the same. I am going to tune for run time and watch the trigger finger. I think that is all it will take to get over 10.
Yeah, report back I will probably do the same. I am going to tune for run time and watch the trigger finger. I think that is all it will take to get over 10.
#231
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JPX.21
Last summer we ran 2 10 min. qualifiers. Have just been wondering if this engine would make it that far.
#232
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Is a great engine, what else can you say.
Tristyn... on a 10 min qual I won't risk it. I would come in for a splash at 7 or 8 min just to keep your temps leveled as you'll start to lean out a bit.
Tristyn... on a 10 min qual I won't risk it. I would come in for a splash at 7 or 8 min just to keep your temps leveled as you'll start to lean out a bit.
#233
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jpx.21 plus
Thanks for the input guys. If anyone else has experience with run times please let me know. I am having a problem deciding on the JPX engine or the werks b5.
#235
That is on a medium / low traction track . So we are easy on the throttle . I haven't checked it on a larger / high bite track .
#236
Tech Regular
I've got a question. I need to buy a new pipe that will have EFRA homologation. So far i have been using the jp-3 pipe and it worked really good. I have a possibility to buy a pretty cheap jp-4. Could you tell me if this pipe will work good with JPX .21 (the older version) in a truggy? I run medium size tracks with low/med traction.
I run 8T 1.0 with stock clutch setup (if it matters).
Thanks,
Donat
I run 8T 1.0 with stock clutch setup (if it matters).
Thanks,
Donat
#237
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Yes they are Picco based, and I will have modified JPX engines ready to go for next week if anyone is interested.... they will sell for $300.00 modified with hand fitted piston...can also put together a combo with a JP4 tuned pipe, glowplugs and M2C variable weight 4 shoe clutch combo...
#238
Tech Initiate
I will try the pipe that came with my GRP Tuned 21, suppose to be similar to JP4
#239
What is the average run time everyone is getting out of this engine?
I'm getting close to 6 mins/tank in my buggy? The engine sounds really good and running super fast.
I'm getting close to 6 mins/tank in my buggy? The engine sounds really good and running super fast.