I could read pages well into the night before I find this answer, so I'll just ask it. My btts rips, just past the gallon mark and Im leaning it out and finding more power. I also have a P5 just past a gallon on it and Im race tuning it, its the club race engine.
The P5 seems to be way off power wise vs the btts, will a lower end pipe get me closer to the btts feeling? 2013 pipe maybe?

Thanks a lot..will give it a try..

hey need pipe advise

im running on a med track 5r with +4 if its rough n rugged/muddy blown out
MBX6 with toro nero both atm running dyna 053 i dont feel this could be the best setup was thinking 2096 with 41021 in the 5r and 2096 41029 in the 6 or would the 9901 with 41021 in the 5r and 9853 41029 in the 6 be a better setup im not in the position to spend a few hundred on different pipes setups for trial and error or just stick with the dyna 053's wich seem not to bad

The toro works well with the 9901 Or 9853 or 9886 and running a mugen you will need to use 41029 header the plus4 would work well with the 2096/29 cheers

btta 3 gallons in and still pinch when cold!
 

I have ran 3 gallons of fuel(VP race 30%/9%) thru my BTTA and I ran 1/2 gal. before I raced it. I always preheat to 200f and run all fuel out before I after run oil it with Hobbico oil. Anyway I am starting to worry that rod is going to be stressed to much but I don't run it rich always around 230f and it runs good but seems to have a little transition from lsn to hsn because at wot starts out smooth then really jumps up in rpm after a second or two. To lean on top or to rich on bottom but I am having hard time getting it just right. I use a Losi RE10 pipe right now but I just bought a RE12 which I think is a copy of 9901 and should help with weird powerband right? Should I crank this motor cold a couple times or really run it lean to drop pinch or just keep on keeping on cause I am 2nd in points and running great this season with the super smooth bottom end with the btta. Thanks!

gonna grab a 2096 for sure still undecided on a 9901 or maybe even a 2084 might flip a coin cheers

the 2096 is ment to be a updated version of the 9901 and the 2084 updated version of the 9853 am i correct?

Do OS plugs work in a Nova P5 or do they have different threads?
Have been running Nova plugs at the moment, but a local company has good pricing on OS plugs at the moment.

OS plugs will work but you will never be able to go back to nova plugs. They are not the best choice. I would use Odonnell or Novarossi.

+1
The OS plugs have a different taper. Once you use them they distort the head button and a normal turbo plug will NOT seal correctly. I think the $10 for a Nova plug is a little high, but they work and work well, so they are worth it in my opinion.

the oils have gummed up/shellac'd/varnished the piston/sleeve , i am 100% sure of it , just run it cause if you clean it off the piston/sleeve fit will be very loose

Ran the P5 in Truggy and Buggy this weekend.

9901/021 in truck
9886/021 in buggy

I was very surprised with this engine on a large out door track with big jumps. This engine held its own against some top engines. I did run on the lean side. Getting 9 mins in truck and 10 in buggy at 5000 feet up. I am very happy with these engines.

I decided to open it up and check out the internals and there is no build-up on the sleeve or piston other than a little on top of piston. The crank is pretty clean also but the bearings have a little carbon on the races. Anyway my Nitrotec was at 2 gallons when it dropped pinch and I think I have been real easy on the btta since our track (Phil Hurd)has alot of tight turns and controlled throttle jumps also only one straight thats not that long. Like I said I ALWAYS preheat and never run it real rich. Used 2% Bryons lube booster for first gallon of VP 30/9 so I hope thats the reason it still has pinch when cold. My needles are flush hsn/ 1/4 turn below flush lsn with 7mm insert does that sound about right? Thanks Again!

sounds pretty close on the needles

the buildup is totally unnoticeable , it will feeel kinda plasticlike actually

good job on the lube booster for break in!! castor oil is a must for break ins:nod:

DOes the 97t work fine in them? Its a Clockwork NOva P5.

97t is way too hot for a clocked P5. Use what Neal suggests. Werks #6 or nova 6. Don't skimp on glow plugs.

Roger that!

Thanks

those looking for the new off road carburetor I have them in stock now...

http://www.absolutehobbyz.com/produc...ducts_id=10167

insert it comes with is 5.4mm

OS plugs are a no go.......coild too thin

use

OD 99 (not 97)

Nova #6

Werks #6

Finally
 

I completely agree Maximo. the 99t, and Nova c6tgc are my favorite plugs, I have not tried the werks..

Those 99t's are getting scarce....I see guys all the time running too hot a plug and burning them up and I tell them get a cooler plg, they rarely listen because so many think hotter is better. They can keep on flaming out for all i care....:lol:

What's the ADVANCES to this new carb will this carb be included in all new engines like the roma

My unrstanding is that its biggest improvement will be fuel economy. But with a 5.4 venturi I would think the tuning window will be pretty small. Maybe Monty can chime in or some one that has used it. I would think that the neddles would have to be a very fine thread

it also a 7mm carb instead of a standard 9mm carb... so I'm guessing the 7mm port goes all the way through instead of putting 7mm Venturi that eventually has a 9mm opening in the bottom... which will slow air pressure somewhat.... i'll stop there.. LOL

I always thought the more air and fuel you can get in, the more power you can get out. So I'm not understanding the reduction in throat size. But that's why I'm not and engine designer either. LOL.

a properly jetted engine will maximize power and fuel consumption ;)


its not always about " the most power" Chris ;):D

i guess but when you consider a 9mm carb with a 7mm reducer in it.. it makes you wonder she even make it 9mm when you sell it with a 6.5 install...

Back in the day
 

For a long time after the s7 and then the p5 came out I took out the restrictor. I was like, no way I'm limiting the carb. haha..

I never had issues with runtime, as a matter of fact I pitted around 10 minutes back then. I guess I drove slower ha. Now I drive like the cops are after me...

so whats the best plug that people have found to work well for the roma:confused:

I had a look at the engine breakdown at the novarossi website and it didnt look like the new carb is coming on the roma??is that true anyone??
also how have people found using the 97t odonnell plugs on there toros and +4, btt engines is there a noticeable difference in performance and longevity compared to the nova c6tgc:confused:
cheers

I just tried one this past weekend. I did not like it. tune was off and idle was all over the place. Changed back to my nova plug. no issues... Thats my experience.

I like the Nova 6 plug best. Easy to tune and will idle forever.

From what I have heard. Odonnell 99T is more like the Nova Rossi 6. The 97T is to hot.

correct, thats pretty much what Neal(Maximo) just posted 1 page back

Correct me if I'm wrong guys but hasn't the quality of the Odonnell plugs went down hill. If so y bother putting one in your high quality mill?

Od plugs were awesome, but over the last few months I had tons of problem with them (maybe a bad batch) so I decided to stop using them and go back with the nova plugs. Since then I haven't had an issue.

smart ;)

Thanks guys

I ran OD 97T plugs at a race last Sunday. The Plus4 Team engine ran perfect the whole race. Very powerfull as always even with only a 5,5 mm venturi - 10 minutes on a tank of fuel during the race. The temps were from +2 to 10º Celsius. My engine are in a very good shape (3 gallons) so actually the 97T plugs is a little too hot. The engine could idle for days without loading up. Thats a too warm plug for me. Gonna get Novarossi #6 plugs and then be able to lean the carb a little. When my engine starts to be worn (in 2014 or so :D), I'm sure it will need at OD 97T or even a OD 77T plugs to keep a steady and crispy idle.

Hey mate, I'm picking up a Roma .25 tomorrow and I see that your I'm Australia. So was wondering if your running the same motor or just asking about it. If your running it. Where are you based and how do you like it. I can't wait to unleash it in my losi t2.0.

hey yes same engine they only just came into australia the other day and I still have not given it a run in my mbx6t hope to do so soon and am based in nth qld.
can anyone confirm if the new carb is on the roma? cheers

I'm in brissy, and I'm pretty sure that it hasn't got the new carb on it. Think they are leaving it as a hop up. Don't know for sure though.