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-   -   NOVAROSSI Engine thread.... (https://www.rctech.net/forum/offroad-nitro-engine-forum/353301-novarossi-engine-thread.html)

WildManDriving 09-04-2013 05:28 PM


Originally Posted by houston (Post 12509255)
Compression ;)
bad pipe choice btw

Holding the engine horizontal by the flywheel it will ever so slow fall over TDC, very slowly. Before buying a new P&S and sending it to be lapped I'll try the 2096 again as at the sting on the 2084 now has a dent. Also going to retune still with the purple mizer but with a .5 idle as I was closed a 1/4 of a turn from that.

Michael.

too twisted 09-04-2013 05:53 PM


Originally Posted by WildManDriving (Post 12516173)
Holding the engine horizontal by the flywheel it will ever so slow fall over TDC, very slowly. Before buying a new P&S and sending it to be lapped I'll try the 2096 again as at the sting on the 2084 now has a dent. Also going to retune still with the purple mizer but with a .5 idle as I was closed a 1/4 of a turn from that.

Michael.

PM Sent

071crazy 09-06-2013 12:08 PM


Originally Posted by Pitstop TQ (Post 12508937)
Hi, I just got a nova btt and was experiencing issues with mounting it. I have a losi 8ight 2.0 and run a werks 34 mm clutch. After I mounted it, the starter box wheel would not engage with the flywheel. I have the losi starter box. It seems as if the flywheel is slightly higher than what I had on the previous engine. Have any of you losi guys had this problem? I know I'd need a different engine mount, just would like to know which one. All help is appreciated. Thanks.

The losi 2.0 starter box should have no problems engaging with the engine/clutch setup that you described.

Are you possibly running a 32mm clutch? Also, are you using the losi quick change motor mounts? The combination of the two, along with a worn starter box wheel could be causing the issue.

bcr500 09-06-2013 03:04 PM

Does anybody know if I can put my plus4 c team internals into a p5xs case? I have a few of the cooling fins on the bottom of my plus4 case broke and i realy dont know if it cracked all the way through.

out-of-control 09-07-2013 06:56 AM

trying to get rid of a 2 stage idle 5pxlt when it comes in for a fuel stop idle is just a touch high then drops after 5 secs?? is my idle gap the issue?
cheers

Maximo 09-07-2013 07:22 AM


Originally Posted by out-of-control (Post 12523419)
trying to get rid of a 2 stage idle 5pxlt when it comes in for a fuel stop idle is just a touch high then drops after 5 secs?? is my idle gap the issue?
cheers

there is always going to be a 2 stage idle to some degree or another.....what you dont want is a engine that comes in high idling with a ringy ping ping going on......Typically a engine should come in with a strong steady idle, maybe a touch high, then after a couple seconds the idle should drop to a lower steady idle, then eventually drop to a low loping idle....When a engine comes in it immediately starts cooling down..as it cools the tune becomes richer and the internal drag increases, so the idle will naturally drop if the tune is correct......

beidle99 09-07-2013 08:58 AM


Originally Posted by out-of-control (Post 12523419)
trying to get rid of a 2 stage idle 5pxlt when it comes in for a fuel stop idle is just a touch high then drops after 5 secs?? is my idle gap the issue?
cheers

To expand on what Neal said... You may need to lean your low end a touch (1 to 2 hours) a little at a time and then lower your idle gap using the idle screw. That will eliminate the 5 second drop in idle. My engine will idle at a normal rate for about 10 to 12 seconds and then start to drop. At that point you should be good. Monitor the temps at idle to make sure they aren't climbing after a high speed pass. When you give it a full pull from idle after about 20 seconds you should get a a nice puff of smoke from the pipe and only a very very slight hesitation, it should clear out rather quickly.

Lille-bror 09-08-2013 12:37 AM

The idle can sound too lean if the idle speed is too high, even if the mixture is too rich.

First make sure the HSN is leaned out, so it starts to "sing" on the straight. Too many runs Novarossis too rich on the top, because they think they have all the power the engine can deliver, but there is often more without running the HSN lean.

I normally lean the LSN until I can hear its too lean (ding ding sound and increased idlespeed after a second or so), and then back off a little until the idle is nice and steady. At that point you can still have a 2 stage idle but its only due to a little too high idlespeed.

ABN Hoosier 09-08-2013 07:27 AM

ANYONE recognize these Mugshots??
 
I wanted to try a 41020 header on my 9853/Bonito for my Truggy to up the bottom grunt. I have a 41021 and a "Mystery" header a friend of mine gave me a while back that has been buried in my RC junk pile. Before I go buying a new 41020, I was thinking this header I have dug up might be similar to the 41020 and wondered if anyone can help ID/compare it to a 41020. No big deal, I can buy a 41020 if not, but it would be cool if it worked...:sneaky:

Pic 1: the two header picture has a 41021 on top (for comparison) and the mystery header on the bottom.

Pic 2: shows a unique side of the header that hopefully someone can recognize and tell me the name/brand/part # of this header.

PIC 1
http://i1137.photobucket.com/albums/...r/IMAG1018.jpg

PIC 2
http://i1137.photobucket.com/albums/...r/IMAG1019.jpg

latemodel13 09-08-2013 08:08 AM

Bonito bottom end
 

Originally Posted by ABN Hoosier (Post 12525958)
I wanted to try a 41020 header on my 9853/Bonito for my Truggy to up the bottom grunt. I have a 41021 and a "Mystery" header a friend of mine gave me a while back that has been buried in my RC junk pile. Before I go buying a new 41020, I was thinking this header I have dug up might be similar to the 41020 and wondered if anyone can help ID/compare it to a 41020. No big deal, I can buy a 41020 if not, but it would be cool if it worked...:sneaky:

Pic 1: the two header picture has a 41021 on top (for comparison) and the mystery header on the bottom.

Pic 2: shows a unique side of the header that hopefully someone can recognize and tell me the name/brand/part # of this header.

PIC 1
http://i1137.photobucket.com/albums/...r/IMAG1018.jpg

PIC 2
http://i1137.photobucket.com/albums/...r/IMAG1019.jpg

I think you are running the wrong pipe setup for the Bonito in truggy. I run the 41001 header with a 9886 and it is fast everywhere. I think neil from clockwork has posted this before. This may not get you 10 minutes but I would rather be fast and pit at 7:30 .

ABN Hoosier 09-08-2013 08:12 AM


Originally Posted by latemodel13 (Post 12526037)
I think you are running the wrong pipe setup for the Bonito in truggy. I run the 41001 header with a 9886 and it is fast everywhere. I think neil from clockwork has posted this before. This may not get you 10 minutes but I would rather be fast and pit at 7:30 .

I am thinking the pipe is wrong too. I have in my Buggy a BTT with a 9901/41020 and it feels pretty good. The Bonito with a 9853/41021 is lacking on the bottom. clutch is 1.1 springs too...

sschultz 09-08-2013 08:16 AM


Originally Posted by ABN Hoosier (Post 12526048)
I am thinking the pipe is wrong too. I have in my Buggy a BTT with a 9901/41020 and it feels pretty good. The Bonito with a 9853/41021 is lacking on the bottom. clutch is 1.1 springs too...

Unless somebody can id your header, why not try it? Can't hurt...:tire:
It's longer, so I think that equals more bottom end, if I'm not mistaken.

ABN Hoosier 09-08-2013 08:27 AM


Originally Posted by sschultz (Post 12526062)
Unless somebody can id your header, why not try it? Can't hurt...:tire:
It's longer, so I think that equals more bottom end, if I'm not mistaken.

I'm gonna try it. I would just like to know what its "info" is just for the "record" in my copious notes.

I think maybe this for my Truggy/Bonito/9853 I already have. Two header choices.

[ENGINE: Novarossi BONITO.21-7XLB 7 Port .21
PIPE: Novarossi "Super Strong" EFRA 9853 One Piece Tuned Pipe (No Manifold) [NVR51017]

HEADERS? (not sure about the differences, both long.)

Novarossi 41005 Long Off Road Manifold [NVR41005]

Novarossi 41020 Long Smooth Flow Off Road Manifold [NVR41020]

rcindia 09-08-2013 09:08 AM

Has anyone have success with Alpha plugs on the P5. We recently had to use the Alpha T3 on a Plus 4 engine and it seemed to run well. Any success stories on the P5?

latemodel13 09-08-2013 10:20 AM

Header
 

Originally Posted by ABN Hoosier (Post 12526090)
I'm gonna try it. I would just like to know what its "info" is just for the "record" in my copious notes.

I think maybe this for my Truggy/Bonito/9853 I already have. Two header choices.

[ENGINE: Novarossi BONITO.21-7XLB 7 Port .21
PIPE: Novarossi "Super Strong" EFRA 9853 One Piece Tuned Pipe (No Manifold) [NVR51017]

HEADERS? (not sure about the differences, both long.)

Novarossi 41005 Long Off Road Manifold [NVR41005]

Novarossi 41020 Long Smooth Flow Off Road Manifold [NVR41020]

For some reason the short double bend header makes great bottom end on the bonito. May be the port timing. I do know the curved header killed the bottom on mine. The 9853 is a 2 chamber pipe so it may be a good choice too. I like the 9886 on most Novarossi engines.


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