I wouldn't call mine tuned to kill in that vid..it was temping at a cold 192F, not even warm enough to make power even. I've pulled a 12+ minute tank with the 2035 pipe temping at 240-250.

I am really looking forward to pitting for you at the Nitro Pit. i am dying to see your runtimes with your engine so loosened up. I sure hope you are racing here tomorrow. James

here is the JP-1 test on the modified JL-21

http://www.youtube.com/watch?v=O_xoc_bqfjA

vid seems to cut out at 1/2 way through.

Sorry, not liking the weather chances, the way this weather has been dont want to risk it and we have canyon and hobbytown in full force down here.
My engine has steel ofna flywheel,all 4 head shims, jp-3 pipe, p4 plug, byron 30%, super smooth hyper 9 drivetrain, zero brake drag, engine all stock except the holes I drilled in the head to lighten it up. The air filter fell off this one at canyon once for 4 mins, mabye that loosened it up, got lucky its still pretty tight

I just did the carb using my mill

Is that a Novarossi insert?

Yes... tho its from my C6

pretty sure ya....orange 6.5mm I think

Neo, the LRP carb inserts also fit but not quite as snug, but will work for sure. This will be a nice tuning option.

Well I finally get to post on mine after an Extreme Racing Mod.
I ran it all weekend at the Psycho Nitro Blast in Atlanta Ga. No bottom end???!!Not a truggy engine??!! WRONG!!!!
She had beautiful bottom end, I could clear any double/triple on the track with ease. This track had everyone bumping their gearing up one to two teeth on their CB's due to the massive straightaway and flowing layout. No need for me too, At 3/4's a gallon mark she did not stop pulling down the straightaway. The engine pulled hard but extremely smooth from bottom to top, no dead spots in the powerband. It's the perfect engine IMO. Very predictable, it always did the same thing when I squeezed the trigger.
I had her running about 210F on a JP-4, O.D. 97T plug and Sidewinder 30/10% blend. I run VP Pro Al. clutch with 1.0mm springs geared 13/48, all lightweight drivetrain. I had a pro buggy driver who runs Ninjas and O.S. Speeds comment on how hard my engine pulled down the straight....I believe that says a lot. Still getting 11-12 minutes runtime on 160cc's with a slightly fat tune. My Truggy weighed dead on 9lbs. no body and just about 1/4 tank in it. The engine had the power to run a 14 tooth CB no problem, I just chose not too. I'll be playing with the pipe Extreme Racing sent me as well soon. I did run it some on pavement. It made the bottom end even better. I need to play with the header lengths and gap to tune the pipe in. I'll post more on the pipe later. Thanks a million Robin, you nailed it. I can't wait until the sleeve relaxes enough to pull a head shim! Not sure if it needs it though!!

Do you have any video of it, I want to see what you mean by the bottom end being better on pavement than dirt..it makes no sense to me. If it's no trouble, can you post a vid? Thanks

I was referring to the pipe Extreme RC Mods made for me improving the bottom end vs. the JP-4 on pavement. Sorry for the confusion. It was launching really hard with his custom pipe. No vids yet sorry, I will post one as soon as possible. I need a camera man, and I want the vid to be done on a track to show it's true potential.

The JL is a great engine and needs no mods, try one and hold on

OH, now I understand what you mean about the power difference, that makes sense now. I wish I could run on a track with my engine, but unfortunately for me, our track is under snow

I find pavement will show you what kind of power an engine makes because you have maximum traction and it really shows how much balls an engine has. In the end though, it's what it will do on the track that counts. That being said, my Clocked JL doesn't have the torque that my Clocked Picco did, but I think it will pull faster laps times though, and the mileage appears to be on par with the Picco. Also, the RPM that the JL reaches is crazy! All this while being butter-smooth.

I look forward to seeing some of your runs.