i know it is a 2096 pipe. I was there... I did not look at the header.

Considering a new P5 in my truggy. I've heard good things about it for truggy use. What's the latest on P5 bearings? I thought I read that the new P5 XLT comes with decent bearings that don't need to be replaced. Is that true?

Don't feel like spending extra $$$ on bearings for a new engine. And how do you like it in a truggy?

x2.. And how do you know if it's the newer better version, or an older one that's been laying around?

2096 with a 41021 header

The earlier versions of the P5XLT had some front bearing issues. My P5 was made in early 2011 and to be safe I replaced with 17011 front bearing before it seen fuel. However my good friend's P5 was new last summer and he's had zero bearing issues whatsoever. Both our engines are in Serpent truggies and have performed flawlessly to date. For the stock P5XLT the 2096SS/41021 combo has provided outstanding performance at a very good value. You will not be disappointed and your wallet will thank you. :D

P5
 

The newest P5's have the 17011 front brearing installed now. It's about time, however, the rear bearing uses smaller balls and seems to be decent although I would replace it with a ceramic or better quality Nova steel bearing just to be sure.

Any news on when the keep off 7port engines are out?
Cheers

They've already hit the states!

Who told you this?

So Houston, what's the deal with the latest P5XLT? Would you replace the bearings, or do they last long enough without putting the engine in any unnecessary risk?

Me
 

I told me this. The most recent P5 I got from the distributor had it installed.

Do you have to change any of the shims on a Bonito after break in or if running 30%??

Hmmmm , whats the date code on the bottom of the block ?
Youre positive the bearing is a 17011?

If merdith is correct thats great news , lets see for sure

Just wanna make sure its not just a blue seal front bearing instead of a 17011

Thanks. I just checked out your site. I might just have to pony up and give the "FM" version a shot.

You won't be disappointed :nod:

UUUh
 

I'm sorry I don't have it with me. It went in a Mugen for the hobby shop to sell, but I promise it was the blue seal 17011 bearing that says novarossi across the seal. I saw it with my own eyes and it was good news for sure.

They were originally blue seals, then went to cheaper blue seal bearings, then more recently they were black seals with seals on both sides of the bearing. I was like huuuh. are you kidding me, then the last p5 I installed was the 17011 bearing I've seen a few of those bearings before, my engine guy Monty recommended I use those. :nod:

BTW the Houston Tuned P5 is my all time favorite engine.

I must admit i was skeptic and in the back of my head still will be until i get one sealed in box that the p5xlt is now coming with the 17011 and It is not a mistake at the factory . Merdith sent pics , its definitely a 17011

Crazy , havent checked on pricing lately but im sure it will go up when somebody realizes what front bearing its coming with

whin working in the CRE shop the other day, I overheard some Bearing talk, 17011 this Blu seals that........But as to what it all meant.....No clue, wasn't paying attention.



:lol:



Good luck next weekend Monty. Wish i coulda made it but Oh well, Next year.

Yeah go get them monty and have fun.. Maybe next year I'll get to meet you at this race.. Every year, I say next but something always seems to pop up since it's a hop, skip and a big jump to get there..

What is good to seal a engine around the carb?

Good o rings. Period.

Make sure you lube the o-ring in the block and push the carb in while twisting it. If you just push it strait in you risk damaging/tearing the oring.

Lucky 7 makes a great carb sealant that we used to use on the Picco carbs, but have not needed to use it on any nova's before.

With the new Keep Off motors. Is the 4 the buggy engine, and 7 the truggy motor?

The parts list on novarossi site has them listed as 17011

http://www.novarossi.it/2012/images/...a/S21P5XLT.pdf

They list 17011 for the Roma, too and it's not supposed to have it either....

Vapour Lock
 

Dose anyone here know how to solve a vapour lock issue ?

I have a Plus4 BTT which is only just run in and am having problems with vapour lock where if the engine stopes or runs out of fuel and when you go to restart it there's just no way. It wont even fire at all. The fuel just gets to the carb nipple and shoots straight back.

Funny thing is its not like its too hot either. I put my Exergen temp gun on the carb and it was only showing 185 when it was doing it.

The next run i did ritchen up the top end a couple hours but its still no different with the vapour lock problem.

The engine runs fine out on the track. Great really. Its just if it ever stops for any reason your not gona get it started again for at least the next 15 minutes or more. :confused:

I've been having an issue with my p5. I've got about 1.25 gallons through it so far and break in has been fine. My issue is since I have started leaning the motor it flames at the end of the straight as soon as I let off the throttle. It generally happens if I adjust the idle to where it should be. I currently have the idle high just to avoid this problem. It runs fine in the infield and I'm getting runtimes right around nine minutes w/ the 8mm restrictor so I know the engine is not overly rich. Good pop off the corner and good smoke. It's been cold here, down in the 40's, when I've been at the track and the motor is running a little on the cool side ~200. I've tried going both ways on the hsn and the lsn and I get the same result. Should I start over with my needle settings? Could the motor still have enough mechanical pinch to be stalling when I drop the throttle? Thanks for any help.

what fuel and glowplugs do you run ?

Running Byron's 30/11 and nova #6

thats a solid combo, tho depending on your climate a hotter plug may help you some......

is your track conditions dusty ?

sweeet , I imagine the price will go up a bit but its a great move imo

judging by what merdith has shown and the exploded view which was updated on january 9 of this year , the p5xlt is now dialed!

Yes, track was dusty one of the days. New filters both days out. I may try a hotter plug, but the weather is looking to change for a little warmer here. I also ran new clutch bearings and made sure the clutch shoes were not dragging on the bell. I checked all gear meshes and the drive train is free also. It seems like it flames only after being full throttle with sustained rpm. If I let off slightly and then get back on throttle it doesn't occur.

185 degrees at the carb seems pretty hot. I've overheated the carb warming an engine with a heat gun and fuel would bouce back into fuel line as you described. I could hear the fuel sizzling as it tries to enter carb/carb throat. Still may want to check entire fuel system for leaks or blockage, and check exhaust gaskets also. May also have some gunk in fuel inlet banjo fitting on carb.

Yeah i did replace all fuel lines and re-routed them just to rule that side of things out.

Just checked the gaskets and found the one that joins the pipe to the pipe manifold was sliced open and had a little bit hanging off it. Was still mostly intact though. I think it must have got too hot and softened too much.

I have put another Novarossi carbi on to try that next. Never had it happen before on other Nova's so will try that next and see what happens.

sounds of a lean bottom to me.

I agree with repete. I had a similar issue at a track last summer that had a long straight into a sweeper. engine would cut out as I got on the throttle again exiting the sweeper. Thought it was the HSN and opened that up and the problem was still there. Fattened the bottom end 2 hours and it went away.

Hello everyone, just wanted to let everyone know we now have Power Plates for some of the Novarossi engines. Please check out the link, and if you have any questions please feel free to ask.

http://ebmods.wordpress.com/2013/02/18/part-pp-3/

Yep check and reset your idle gap and retune your LSN.