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

ray4624 07-12-2021 07:16 PM


Originally Posted by Badboy3.0 (Post 15804698)
Overall though the day was cut short due to an intermittent switch failure but the truck was running fast and came off at about 240deg.
thanks for all the help rc tech haha


Glad your Novarossi is doing well for you. I haven’t posted enough to post links. Try one shot kill switch. I had constant switch problems until this one. It acts like a plug[/QUOTE]

thanks I’ll give that a shot.
I ordered a couple do the skyrc switches for now as people seem to like them.

ray4624 07-19-2021 06:09 AM

so i went back out this weekend and tried to get the tune a bit more dialed.
im having some constant issues where the RPMs stay high when i let off in a corner.
sometimes i can blip the throttle and they drop..other times not
when i come into pit, the revs stay high and then drop after a few seconds to a normal idle.

ive set the gap to .6mm as suggested for a startig point
the motor is running fine, crisp take off and good top end
the temps stay around below 220-230

ive gone through everything looking for leaks and all seems to be well.
the motor has about 3/4 of a gallon through it with plenty of pinch

any thoughts on the rev hang issue?
they dont necessarily stay "high" but it seems like the car stays at 1/4 throttle through the corner

nitro_mt_racer 07-19-2021 06:31 AM


Originally Posted by ray4624 (Post 15806518)
so i went back out this weekend and tried to get the tune a bit more dialed.
im having some constant issues where the RPMs stay high when i let off in a corner.
sometimes i can blip the throttle and they drop..other times not
when i come into pit, the revs stay high and then drop after a few seconds to a normal idle.

ive set the gap to .6mm as suggested for a startig point
the motor is running fine, crisp take off and good top end
the temps stay around below 220-230

ive gone through everything looking for leaks and all seems to be well.
the motor has about 3/4 of a gallon through it with plenty of pinch

any thoughts on the rev hang issue?
they dont necessarily stay "high" but it seems like the car stays at 1/4 throttle through the corner

Too lean on the HSN. Fatten it and repeat.

ray4624 07-19-2021 06:55 AM


Originally Posted by nitro_mt_racer (Post 15806530)
Too lean on the HSN. Fatten it and repeat.

ah i think i had it backwards then
i was barely in from flush on the HSN but ill back it out an hour or 2 and see what weve got

Thanks

Galatians2 20 07-19-2021 09:45 AM


Originally Posted by ray4624 (Post 15806542)
ah i think i had it backwards then
i was barely in from flush on the HSN but ill back it out an hour or 2 and see what weve got

Thanks

Yes, novas are opposite most other engines. Where the needle settings look rich on top and lean on the bottom.
All my HSN are very close to flush going very little either direction where some of my LSN look cranked in at first glance.

ray4624 07-19-2021 10:59 AM


Originally Posted by Galatians2 20 (Post 15806628)
Yes, novas are opposite most other engines. Where the needle settings look rich on top and lean on the bottom.
All my HSN are very close to flush going very little either direction where some of my LSN look cranked in at first glance.

perfect thank you
this should get me going in the right direction

cucan 07-27-2021 08:49 AM

In Europe some shops still have decent stock of everything. Also they had a new engine delivery a few months ago GT5 which was said to be the 2021 model from Novarossi.
i find it confusing that they are closed but still a decent amount of product in the market.....
Either they produced batches before closing down or they are still working...

ray4624 07-27-2021 08:52 AM


Originally Posted by cucan (Post 15809165)
In Europe some shops still have decent stock of everything. Also they had a new engine delivery a few months ago GT5 which was said to be the 2021 model from Novarossi.
i find it confusing that they are closed but still a decent amount of product in the market.....
Either they produced batches before closing down or they are still working...

it was said in another thread that there are pictures floating around (i havent seen them) of the CNC equipment being sold and loaded into trucks.
the merch that surfaced may have just been stock they couldn't get out before the initial shut downs.

Roelof 07-27-2021 09:22 AM


jkurz211 07-27-2021 11:20 AM


Originally Posted by Roelof (Post 15809179)


They are having a liquidation sale from the looks of it!!!

speedy2 07-27-2021 11:57 AM

I sell 2 R7 rods: 1 jp racing lightened, 1 normal one
if interested pm..

Galatians2 20 09-21-2021 08:36 PM

I know there hasn’t been much posted on here lately about the engines but just wanted to report after some testing this weekend. I still have 4 running Novas and 3 new in box along with piston, sleeve & conrod rebuilds for all; so Novas will not be dead to me anytime soon lol.

I purchased a Keep off 4 with 3 gallons on it and paired it with the Hipex L50/2135 evo 3. It ran pretty good with decent power overall but it did get a little hotter then I liked. I tried it this weekend with the 41021/2096 and 41021/086 combos. The 2096 was my favorite with great power band, runtime and temps. Feel the engine likes this combo the best in buggy.

In truggy I went with my P5XL with Hipex L50/2135 evo 2. Again I felt like it had decent power but felt like it was lacking a little. Wasn’t making the greatest runtime and also got hotter then I like. I paired it with the long header 41020 and an Ofna 086. Wow, this is what is being used in truggy. Had crazy bottom end and screamed down the straight. Was even with another truck that had mito 7 and 41021/2096 combo on straight but I definitely had more bottom end. Loving pombo and definitely recommend in truck. Also got almost 11 mins to the tank.

Captain Howdy 10-11-2021 08:37 AM

Out of curiosity has anyone else noticed inconsistencies with Novarossi's most recently produced engines? For example two of the same engines have a different cooling head color or conrod has no markings on it. Oddly also noticed that RCGIMAR out of Italy produces their own line of engines in which some of the components are labeled Novarossi. I'm I missing something here?

Roelof 10-11-2021 08:53 AM

In my opinion Novarossi has used the last year before Covid and the beginning of Covid the stock material from everything they already had produced. The Flash PXT was using a RB head as a good example and also did use an xtra long stroke crankcase seen by the sleeve center pin in the crankcase.. Sad enough also the weak piston material normally used in the low end engines also popped up in the high end engines, these engines lost comperssion after a few liters of use...

GiMar did not produce own engines, they were just Novarossi made. They have bought up many stock parts so several weird 2020/2021 models Novarossi models seemed they were made by Gimar. But the new Gimar engines are now as many others OS based.... But you can contact GiMar for parts, they could have that part what you are looking for.

cucan 10-11-2021 08:56 AM

As mentioned above Gimar used Novarossi engines as a base and modifies/d them. I shop from them often and they have parts for their Gimar labeled engines.


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