352LikesNOVAROSSI Engine thread....
04-23-2016 | 12:31 PM
#8911
Out of the pipes and headers below, what would Be the best combo for a dusty loose track? I'm just asking because these are what I have at the moment.
Pipes: 2096, 9853, 9886
Headers: 41001, 41029
04-23-2016 | 01:15 PM
#8912
Leave the 01 header on unless you choose to buy a 21... and put the 2096 on for the looser tracks. I was running that one for awhile and it performed very smooth on my modded P5. I put a 9886 on there for this year with a 41021 header and it really woke up the top end but is still very controllable. Our track is a medium grip but open and fast flowing so you spend a good amount of time in the mid range. The 9886 also gave me about 45-60 seconds more run time as well...
04-25-2016 | 08:28 PM
#8913
Tech Initiate
Joined: Mar 2016
Posts: 29
I have the Virtus. It seems to have lost a lot of compression after break in. Cylinder has a mirror finish in it. Ran the engine pretty rich during this time and really took it easy on the engine. It gives resistance but it feels loose for this early in the game. Running Odonnel fuel.
04-26-2016 | 11:55 AM
#8914
Need a little advice on my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
Last edited by bypass911; 04-26-2016 at 12:19 PM.
04-28-2016 | 09:30 AM
#8915
Need a little advice on my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
04-28-2016 | 09:51 AM
#8916
Need a little advice on my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
Currently using the 9mm venturi, and it's an absolute beast like no other. I'm really in love running at around 260 temp. It has around a gallon or so, not race tune yet running pretty rich with a lot of smoke bottom to top.
LSN is about 1 turn IN from Flush, HSN is about 1 turn OUT from flush.
Idles really well. If I lean the HSN about 1 hour temp goes up to 290 and runs like raped ape. Still produces ton of smoke, but temp is 290? I love the power but I'm only getting little over 5 minutes! I can go smaller venturi but I will miss the power but gain run time. If I go smaller I'm afraid temp will go even higher.
Currently its sitting on Tekno NT48.3, Buku Cap, Buku clutch, 9mm venturi, dynamite 086 pipe, 48 spur, 13t bell. C6 Plug Running Byron 30/11
Should I worry about the temp or disregard it since I have a lot of smoke? I would like to go 8mm venturi and lean the top an hour or two.
I would like to achieve 7 min run time with all the power I can get from my Roma.
also the HSN is still very very fat, and your LSN may be a touch lean when you finally do lean the HSN
04-28-2016 | 02:04 PM
#8917
Thanks guys, I guess the high temp is due to being new and still has lot of pinch. I will give another gallon and lean it out and see if I can get more run time. But this Roma is insane with the 9mm lol. Bottom and top end is just sick. Its actually quite amazing it can run over 5 minutes with this much power.
04-29-2016 | 01:02 PM
#8918
Tech Initiate
iTrader: (6)
Joined: Apr 2014
Posts: 22
From: ct.
head shim blow by
Was at the track and my P5 was having random flameouts, it was also hard to tune.
When I got back home I started checking for vacuum leaks. The only thing I found was I could get about a half hour to an hour turn on 2 out of the 4 head screws.
I decided to take the head and button off to check things out and it looked like I was getting blow by between the shims (.6mm stack). I replaced with .8mm stack because I run 30% werks race blend.
Could this have been the culprit? Is it normal to see blow by between the shims?
I haven't run the car since replacing the shims as I'm waiting for other parts.
Thanks!
When I got back home I started checking for vacuum leaks. The only thing I found was I could get about a half hour to an hour turn on 2 out of the 4 head screws.
I decided to take the head and button off to check things out and it looked like I was getting blow by between the shims (.6mm stack). I replaced with .8mm stack because I run 30% werks race blend.
Could this have been the culprit? Is it normal to see blow by between the shims?
I haven't run the car since replacing the shims as I'm waiting for other parts.
Thanks!
04-29-2016 | 05:35 PM
#8919
Was at the track and my P5 was having random flameouts, it was also hard to tune.
When I got back home I started checking for vacuum leaks. The only thing I found was I could get about a half hour to an hour turn on 2 out of the 4 head screws.
I decided to take the head and button off to check things out and it looked like I was getting blow by between the shims (.6mm stack). I replaced with .8mm stack because I run 30% werks race blend.
Could this have been the culprit? Is it normal to see blow by between the shims?
I haven't run the car since replacing the shims as I'm waiting for other parts.
Thanks!
When I got back home I started checking for vacuum leaks. The only thing I found was I could get about a half hour to an hour turn on 2 out of the 4 head screws.
I decided to take the head and button off to check things out and it looked like I was getting blow by between the shims (.6mm stack). I replaced with .8mm stack because I run 30% werks race blend.
Could this have been the culprit? Is it normal to see blow by between the shims?
I haven't run the car since replacing the shims as I'm waiting for other parts.
Thanks!
I'd clean the shims and head button off real good and try running it with the .8mm shim stack and see if it runs well. I always take the sleeve out too and hit the sealing surface with some 400-600grit sandpaper to make sure it's nice and flat... on table or flat surface of course, basically same thing you'd do with a diff to make sure your paper gasket has a nice flat surface to work with.
04-29-2016 | 06:08 PM
#8920
Tech Initiate
iTrader: (6)
Joined: Apr 2014
Posts: 22
From: ct.
I'd clean the shims and head button off real good and try running it with the .8mm shim stack and see if it runs well. I always take the sleeve out too and hit the sealing surface with some 400-600grit sandpaper to make sure it's nice and flat... on table or flat surface of course, basically same thing you'd do with a diff to make sure your paper gasket has a nice flat surface to work with.
05-02-2016 | 03:54 PM
#8922
Tech Master
iTrader: (12)
Joined: May 2004
Posts: 1,117
Had an interesting conversation with Steve O-Donnell today just asking on his V2 glow plugs as I picked up just some 97T for my Top Elite 8 break-in.
So the plug to use is the 277T (Hot/Med) even though it is listed Hot everywhere. I always like the O'Donnell plugs the 99's in my Rex P5X 10 years ago and these plugs are very meticulously made and machined.
So his take on most powerful motor in the stable I guess in stock trim is the Bonito. I told him I was interested in Mito 4 or 7 ports as a future purchase.
Interesting.
So the plug to use is the 277T (Hot/Med) even though it is listed Hot everywhere. I always like the O'Donnell plugs the 99's in my Rex P5X 10 years ago and these plugs are very meticulously made and machined.
So his take on most powerful motor in the stable I guess in stock trim is the Bonito. I told him I was interested in Mito 4 or 7 ports as a future purchase.
Interesting.
05-03-2016 | 09:02 AM
#8923
Tech Fanatic
Joined: Jun 2009
Posts: 940
From: Spring Mountain PA
Maximo o great Nova Master,
I am running a keep off 7 in TLR 4.0 buggy. The engine has more power than the driver has skills but it is a blast. I am running 2096 with21020 header. I think the manifold is stifling the top. I am going to try the 21021 header for some improved mid to top and maybe clam the bottom slightly but I like the punch. Am I moving in right direction? Also would the 21021 improve mileage over the 21020 , right now 7-8 minutes with the orange restrictor ,7 mm I think?
Was going to run the Drake 9901 and 21020 . Buddy running this set up same engine and car and he hangs with me at beginning of back straight but by mid way passes me like I am running a Prius
His mileage is down from mine though pushing it to get 7 min with same restrictor.
What restrictor, pipe and header combo would you recommend for mid to top with best mileage for Keep Off 7 ?
Just broke in the Keep Off 4 will hit track with it this weekend. I would assume a little less power with better mileage than the 7 in buggy.
What restrictor, pipe header combo would you recommend for the KO4?
Usually ran Nitrotec for few seasons in buggy with 6-7 restrictors ,RE12 pipe. Is the RE12 a 9901 knock off by TLR ?
The Nitrotec's were very smooth, good power and great mileage but I am liking a little more punch and speed on straight and to get me out of trouble when I make bad decisions or get off line and still hit the triples. My skills are improving.
I have RE12, RE11, 2013, 2058, 2060 Novarossi 2096 SS. I plan to get 9901, ss or reinforced stinger ?
Also interested in 9886 ss ? and 9853ss ? How would these work on buggy with Keep Off 4, 7, and Virtus ? What header combos?
Sorry for the novel but have been an GRP and O.S. Speed guy but I got a great deal on these new Nova's and like the quality and innovation and think I will play with these for a while. I like the 3 needle carbs on the Novarossi's it helps me tune them in a little better than the 69 2 needle. Maybe the xtra long stroke factor? Maybe next round go Mito 4, Rex or Top line
I enjoy your dyno charts. Any lay overs of Speeds / Mito's or Keep Off 4 / Mito 4 or Virtus /Speeds or Speed short stroke (JQ The Engine as I have 2 and like them) /Sq stroke / long stroke
Thanks
I am running a keep off 7 in TLR 4.0 buggy. The engine has more power than the driver has skills but it is a blast. I am running 2096 with21020 header. I think the manifold is stifling the top. I am going to try the 21021 header for some improved mid to top and maybe clam the bottom slightly but I like the punch. Am I moving in right direction? Also would the 21021 improve mileage over the 21020 , right now 7-8 minutes with the orange restrictor ,7 mm I think?
Was going to run the Drake 9901 and 21020 . Buddy running this set up same engine and car and he hangs with me at beginning of back straight but by mid way passes me like I am running a Prius
His mileage is down from mine though pushing it to get 7 min with same restrictor. What restrictor, pipe and header combo would you recommend for mid to top with best mileage for Keep Off 7 ?
Just broke in the Keep Off 4 will hit track with it this weekend. I would assume a little less power with better mileage than the 7 in buggy.
What restrictor, pipe header combo would you recommend for the KO4?
Usually ran Nitrotec for few seasons in buggy with 6-7 restrictors ,RE12 pipe. Is the RE12 a 9901 knock off by TLR ?
The Nitrotec's were very smooth, good power and great mileage but I am liking a little more punch and speed on straight and to get me out of trouble when I make bad decisions or get off line and still hit the triples. My skills are improving.
I have RE12, RE11, 2013, 2058, 2060 Novarossi 2096 SS. I plan to get 9901, ss or reinforced stinger ?
Also interested in 9886 ss ? and 9853ss ? How would these work on buggy with Keep Off 4, 7, and Virtus ? What header combos?
Sorry for the novel but have been an GRP and O.S. Speed guy but I got a great deal on these new Nova's and like the quality and innovation and think I will play with these for a while. I like the 3 needle carbs on the Novarossi's it helps me tune them in a little better than the 69 2 needle. Maybe the xtra long stroke factor? Maybe next round go Mito 4, Rex or Top line
I enjoy your dyno charts. Any lay overs of Speeds / Mito's or Keep Off 4 / Mito 4 or Virtus /Speeds or Speed short stroke (JQ The Engine as I have 2 and like them) /Sq stroke / long stroke
Thanks
05-03-2016 | 06:55 PM
#8924
which current nova engine is most like the plus4 21-4c?
a ceramic bearing isn't the priority. just looking at power and mileage characteristics. does any one of the new motors still even use the same sleeve as the venerable plus4?
a ceramic bearing isn't the priority. just looking at power and mileage characteristics. does any one of the new motors still even use the same sleeve as the venerable plus4?
05-03-2016 | 07:16 PM
#8925
Maximo o great Nova Master,
I am running a keep off 7 in TLR 4.0 buggy. The engine has more power than the driver has skills but it is a blast. I am running 2096 with21020 header. I think the manifold is stifling the top. I am going to try the 21021 header for some improved mid to top and maybe clam the bottom slightly but I like the punch. Am I moving in right direction? Also would the 21021 improve mileage over the 21020 , right now 7-8 minutes with the orange restrictor ,7 mm I think?
41021 doesn't seem overly good for top end... 41001 is much better as well the 41033...7mm is hurting some.....also remove 0.1 -0.2 mm head shim...this will wake the engine right up
Was going to run the Drake 9901 and 21020 . Buddy running this set up same engine and car and he hangs with me at beginning of back straight but by mid way passes me like I am running a Prius His mileage is down from mine though pushing it to get 7 min with same restrictor.
What restrictor, pipe and header combo would you recommend for mid to top with best mileage for Keep Off 7 ?
9886/9853/41001/8mm insert.....remove 0.1 -0.2 mm shim...done deal !
Just broke in the Keep Off 4 will hit track with it this weekend. I would assume a little less power with better mileage than the 7 in buggy.
What restrictor, pipe header combo would you recommend for the KO4?
Same deal as as KO7
Usually ran Nitrotec for few seasons in buggy with 6-7 restrictors ,RE12 pipe. Is the RE12 a 9901 knock off by TLR ?
The Nitrotec's were very smooth, good power and great mileage but I am liking a little more punch and speed on straight and to get me out of trouble when I make bad decisions or get off line and still hit the triples. My skills are improving.
RE12 is not at all like a 9901...
I have RE12, RE11, 2013, 2058, 2060 Novarossi 2096 SS. I plan to get 9901, ss or reinforced stinger ?
Also interested in 9886 ss ? and 9853ss ? How would these work on buggy with Keep Off 4, 7, and Virtus ? What header combos?
41001/41033 better power, better mileage, loss of smoothness
Sorry for the novel but have been an GRP and O.S. Speed guy but I got a great deal on these new Nova's and like the quality and innovation and think I will play with these for a while. I like the 3 needle carbs on the Novarossi's it helps me tune them in a little better than the 69 2 needle. Maybe the xtra long stroke factor? Maybe next round go Mito 4, Rex or Top line
I enjoy your dyno charts. Any lay overs of Speeds / Mito's or Keep Off 4 / Mito 4 or Virtus /Speeds or Speed short stroke (JQ The Engine as I have 2 and like them) /Sq stroke / long stroke
I can try
Thanks
I am running a keep off 7 in TLR 4.0 buggy. The engine has more power than the driver has skills but it is a blast. I am running 2096 with21020 header. I think the manifold is stifling the top. I am going to try the 21021 header for some improved mid to top and maybe clam the bottom slightly but I like the punch. Am I moving in right direction? Also would the 21021 improve mileage over the 21020 , right now 7-8 minutes with the orange restrictor ,7 mm I think?
41021 doesn't seem overly good for top end... 41001 is much better as well the 41033...7mm is hurting some.....also remove 0.1 -0.2 mm head shim...this will wake the engine right up
Was going to run the Drake 9901 and 21020 . Buddy running this set up same engine and car and he hangs with me at beginning of back straight but by mid way passes me like I am running a Prius
His mileage is down from mine though pushing it to get 7 min with same restrictor. What restrictor, pipe and header combo would you recommend for mid to top with best mileage for Keep Off 7 ?
9886/9853/41001/8mm insert.....remove 0.1 -0.2 mm shim...done deal !
Just broke in the Keep Off 4 will hit track with it this weekend. I would assume a little less power with better mileage than the 7 in buggy.
What restrictor, pipe header combo would you recommend for the KO4?
Same deal as as KO7
Usually ran Nitrotec for few seasons in buggy with 6-7 restrictors ,RE12 pipe. Is the RE12 a 9901 knock off by TLR ?
The Nitrotec's were very smooth, good power and great mileage but I am liking a little more punch and speed on straight and to get me out of trouble when I make bad decisions or get off line and still hit the triples. My skills are improving.
RE12 is not at all like a 9901...
I have RE12, RE11, 2013, 2058, 2060 Novarossi 2096 SS. I plan to get 9901, ss or reinforced stinger ?
Also interested in 9886 ss ? and 9853ss ? How would these work on buggy with Keep Off 4, 7, and Virtus ? What header combos?
41001/41033 better power, better mileage, loss of smoothness
Sorry for the novel but have been an GRP and O.S. Speed guy but I got a great deal on these new Nova's and like the quality and innovation and think I will play with these for a while. I like the 3 needle carbs on the Novarossi's it helps me tune them in a little better than the 69 2 needle. Maybe the xtra long stroke factor? Maybe next round go Mito 4, Rex or Top line
I enjoy your dyno charts. Any lay overs of Speeds / Mito's or Keep Off 4 / Mito 4 or Virtus /Speeds or Speed short stroke (JQ The Engine as I have 2 and like them) /Sq stroke / long stroke
I can try
Thanks
I Will try to do more crossover dyno comparisons