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Old 02-23-2005, 11:51 PM   #1
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Default New Nova, Top and Rex Engines

Apparently these new engines come with a "balanced crank" and a longer heat sink. Anyone has tried them??
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Old 02-24-2005, 06:13 AM   #2
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Bit more to it than that.



N12LL3
N12LL5

Maximum power
1.58 hp
1.66 hp

Bore x Stroke
13.70 mm x 14.25 mm
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Old 02-24-2005, 06:15 AM   #3
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Note the differences in the bore and stroke.



N12LS3
N12LS5

Displacement
2.09 cm3

Maximum power
1.56 hp
1.64 hp

Bore x Stroke
13.80 mm x 14.04 mm
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Old 02-24-2005, 06:44 AM   #4
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The differences in the bore and stroke is nothing new. The LL series was around alast year.


Cheers,

john
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Old 04-28-2005, 09:27 PM   #5
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Mine comes in tomorrow
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Old 04-28-2005, 09:39 PM   #6
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They have new sleeves and cases compared to the older engines. I am almost positive that the cranks are the same.
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Old 04-29-2005, 10:42 AM   #7
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We have discuase this engines a while ago. It is the same as 13.76X14.04 engines. In my assumption, this is step to promote new management in Novarossi (Mario Rossi has gone to AXE Rossi company). In general nothing been changed. The difference is bore strock is 0.08 %. There are some possible chanages in case pressure and vacuum levels ( longer strock will create more pressure and deeper vacuum), but without real messuring difficult to make statments. There were changed outside mesurments for sleeves. In general speaking the same engine.
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Old 05-01-2005, 10:11 AM   #8
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how is the new REX RER12 S3?????????
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Old 05-01-2005, 11:11 AM   #9
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Novarossi gets the new engines first as they actually make them. They just hit the United States importer only a few days ago.

The "new" Rex Rer is not new. When they get the new engines, I am quite sure that they will have new model numbers.

The Rer12s3 is a great engine in itsself, just not anything new.
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Old 05-01-2005, 08:12 PM   #10
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but is it good and reliable and fast ......any feedback on the motor????? is it worth 300 canadian brand new??????
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Old 05-01-2005, 08:35 PM   #11
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Quote:
Originally posted by factory racer
but is it good and reliable and fast ......any feedback on the motor????? is it worth 300 canadian brand new??????
It is good, fast, and reliable. Is it worth 300 canadian. Depends on what else you can get for 300 canadian. That is a good price on that engine.
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Old 05-01-2005, 09:17 PM   #12
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I wonder who will be the distributor this year? It seems Novarossi bounces from company to company here in the states.
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Old 05-01-2005, 09:47 PM   #13
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Novarossi is still distributed by Fusion Motorsports in the USA.
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Old 05-02-2005, 01:22 AM   #14
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The engine runs awesome. Not that I have much room to judge a motor and all .. (this being my first car)..
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Old 05-11-2005, 03:31 PM   #15
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recieved the motor and its sooooooo nice cant wait to actually use it i just have to find the time to break the lil bugger in.......cant wait
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