I'm tearing down my B5N for cleaning and sealing (the thing has tons of oil all over it) and Im trying to take the con rod off the crankshaft, I've never had this much trouble, doesnt seem like theres enough room, anyone have advice?

If it is new then they are a bear to get off. The only way to do it is to tug on the rod uncomfortably hard for my liking. Once you have a few tanks thru the motor you will find it easier.

I assume you have taken to sleeve out first!!!!!!

Does anyone know where I can find a replacement head for my JP FX? New or used.

Does anyone know a good contact address for JP? I have a problem with the engine I just recieved and they havent replied to any of my e-mails..

Any1 have the old JPS5? is the performance gd?

I have one and been using it for about a year now. Its performance is just abit faster than a stock S5 in fact my own modded S5 is way faster that my JPS5.

just curious as to what kind of problem you are having? i want to get the turbo version, jp fx .21 b5t.

Hi all just want check and see if I can change my engine I just bought off a guy and it was suposed to be no turbo but It has aturbo plug(ns12) I think it is. What I want to do is change it over to a normal plug is this possable??
I am only new to gas. I will need part numbers and where to get the parts from thanks for your time .

It is quite possible. As a matter of fact, I have a non turbo button (new) that I will trade you for the turbo button that you have. Let me know if you are interested.

Hi,

Could anyone with experience tell me what the JP FX 5 ports or 3 ports like compared to the like of the RB Rody v12 5 ports, or nova max or the sirio outlaw. Where is ts the most power produce, i.e bottom, mid or top etc etc ? Currentlly running a rb rody 5 ports in mtx 3, but looking for a new engine, and was thinking of a JP FX.

Thanks

From my experience, I'm very satisfied with the bottom power from my JP FX. Top end I think almost the same as any modified engine such as Novamax and ZAC. But looks like RB still has a little bit more power on the straight line.

Mr. JP himself has done this to my engine (which my friend borrowed for the WC in Brazil) It's weird because he put the shim outside of the sleeve.

Have any of you experienced with this? Whats behind this idea? What is he want to achieve for its power?

Another picture

Well, it raises the exhaust port height.