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Old 03-08-2010, 08:17 PM   #226
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No, Im getting 8 to 8.5 in a truggy, that is at two gallons,original plug that came with this engine. Time to put in a new plug, and tune again.
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Old 03-08-2010, 08:24 PM   #227
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So best run times are 7:30 - 8 min.?
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.

Last edited by petevette; 03-08-2010 at 08:25 PM. Reason: typo
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Old 03-08-2010, 08:32 PM   #228
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I live in Pa, its still winter here. The only racing to be had is indoor. So im going to race down buy Pittsburgh this weekend. i will reply to what kind of run times Im getting. Hope to see 10 ?
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Old 03-08-2010, 08:36 PM   #229
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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.
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Old 03-09-2010, 05:45 AM   #230
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The more I race,the more learn its a lot to do with finger control.
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Old 03-09-2010, 06:29 AM   #231
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Last summer we ran 2 10 min. qualifiers. Have just been wondering if this engine would make it that far.
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Old 03-20-2010, 06:06 AM   #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.
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Old 03-21-2010, 12:35 AM   #233
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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.
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Old 03-21-2010, 01:24 AM   #234
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we are getting between 9.5 min and 10 min in a buggy with the old verion which sucks more fuel than the new one. i have it really rich on bottom too. im running a RB 2045 pipe works great.
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Old 03-21-2010, 08:21 AM   #235
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we are getting between 9.5 min and 10 min in a buggy with the old verion which sucks more fuel than the new one. i have it really rich on bottom too. im running a RB 2045 pipe works great.
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 .
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Old 03-22-2010, 11:05 AM   #236
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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).

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Old 03-22-2010, 02:04 PM   #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...
here you go
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Old 03-23-2010, 07:50 PM   #238
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they are IMO the best glowplugs money can buy, they burn awesome and last forever...in a Picco it allows you to properly lean the engine down and not get detonation..OS plugs are all wrong for this engine and OD are not far off....
I also blew the stock glow plug during breakin. I accidently ran the tank dry and she fried. Now i run OD97T and 30 lositane with stock shimming. I have been craving the need for more MPG, will picco plugs help this? Also I have been running JP3 but i think a mellower pipe with allow more MPG do you agree?
I will try the pipe that came with my GRP Tuned 21, suppose to be similar to JP4
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Old 04-11-2010, 08:35 PM   #239
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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.
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Old 04-11-2010, 09:16 PM   #240
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I get 8 to 8.5 in my truggy. Two gallons old, still on the original glow plug and hasen't missed a beat .
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