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MVVS 11 engine

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Old 05-23-2012, 06:04 PM
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Default MVVS 11 engine

JUst looked at the MVVS thing on Pe Reivers , do not know if available they list a 11 looks just like the 15 but cylinder cannot be rotated on the 11 and shown as glow only would need a conversion head with contra in head seems strange they would have an 11 and 15 they take the same mufflers the 11 weighs 155gms the 15 188gm they claim up to 19000 on the 11

my smallest and oldest MVVS is the 09 which I guess fits the classic catagory long out of production martin

Correction it is not on Reivers site pull up MVVS 11 model engine on google or firefox
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Old 05-23-2012, 09:51 PM
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Default RE: MVVS 11 engine

I have few of both, quite like the .11 as it is on glow. Weights are high though, I don't know were your numbers come from but in my notes I have them at 168g and 204g for the .11 and .15 respectively. The half-pipe adds another 42g to that.
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Old 05-24-2012, 04:38 AM
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Default RE: MVVS 11 engine

Mr cox error on weight guess I picked up wrong data reivers lists the the 15 glow at 185 gms without muffler cannot find the 11 again on the site martin
one ref was a 12 not 11 typo??
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Old 05-24-2012, 05:54 AM
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Default RE: MVVS 11 engine

The engines are 2.0cc and 2.5cc I believe, so this would make them .12 and .15 respectively. I think the full description of the 2cc one is .12 GFS, as in front induction and side exhaust. I can check my boxes later.
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Old 05-24-2012, 07:03 AM
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Default RE: MVVS 11 engine

The MVVS .15 is a huge engine. I doubt they would make a .11 or .12 out of it. It mnight be interesting though. But making a 11 or 12 out of that big MVVS .15 would put you at a weight disadvantage over the smaller other brand engines in that size range. Now MVVS used to make 2cc and some smaller engines but they quit doing that quite a while ago. I took a look at the Pe Reiver's MVVS site and I didn't see anything smaller than the .15 engines depicted there for sale.
I have the MVVS 1.5cc diesel engine and it has a one piece crankcase and cylinder so you cannot rotate the cylinder around.


Here is a pic comparing the MVVS .15 to the FOX .15 engine.









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Old 05-24-2012, 07:32 AM
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Default RE: MVVS 11 engine

Earl the 11 or 12 depending on the conversion from metric I have seen both numbers( it is the same engine) is one one piece smaller case it can not be rotated as the 15s and up and it looks like the 09 except for the exhaust outlet which is conventional with a bolt on muffler rather than just the slot in the cylinder and buller held with a U clamp around the cylinder martin

just tried to upload the pix of the 09 MVS the infamous 500 error came up

yes it is smaller than the 15 will take a new pix since one out of file does not work and use the arc soft program
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Old 05-24-2012, 12:17 PM
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Default RE: MVVS 11 engine

Here are a few images of the .12 GFS-RC, and one next to a .15 DFS/R RC.



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Old 05-24-2012, 12:33 PM
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Default RE: MVVS 11 engine

Here is another size comparison. The earlier plainbearing MVVS (Modela) Junior 2cc, next to the .12 GFS. The Junior is also a traditional steel/iron construction while the .12 GFS is true ABC.

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Old 05-24-2012, 01:12 PM
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Default RE: MVVS 11 engine

Mr cox MVVS 1.5 rc
still no good cannot up load pix server error 500 martin
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Old 05-24-2012, 01:36 PM
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Default RE: MVVS 11 engine

Okay, here is the 1.5cc (.09) engine too;
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Old 05-24-2012, 01:46 PM
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Default RE: MVVS 11 engine

Mr Cox thats it lower right side THX martin will have to have computer checked
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Old 05-24-2012, 09:00 PM
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Default RE: MVVS 11 engine

I have two of the Modela 2cc's and they are really sweet
handling engines and throttle really well. They however share
a loose fitting contra. I have tried several fixes and have not
been able to get them right. I designed a plane with inverted
engine just so it would make dealing with the contra easier.
Ralph
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Old 05-24-2012, 11:16 PM
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Default RE: MVVS 11 engine


Quote:
ORIGINAL: earlwb

The MVVS .15 is a huge engine. I doubt they would make a .11 or .12 out of it. It mnight be interesting though. But making a 11 or 12 out of that big MVVS .15 would put you at a weight disadvantage over the smaller other brand engines in that size range. Now MVVS used to make 2cc and some smaller engines but they quit doing that quite a while ago. I took a look at the Pe Reiver's MVVS site and I didn't see anything smaller than the .15 engines depicted there for sale.
I have the MVVS 1.5cc diesel engine and it has a one piece crankcase and cylinder so you cannot rotate the cylinder around.


That's not exactly a valid comparison Earl, the Fox is an old school plain bearing loop scavenged motor, while the MVVS is TBR schnuerle ported. Different as chalk & cheese for totally different applications.

Both very good at what they do.

As an aside it would be interesting to make a .12 out of a MVVS .15 just to see how fast you could get it to go. The larger gas passages could make a real screamer out of it.

Regards


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Old 05-25-2012, 03:43 AM
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Default RE: MVVS 11 engine

Yes you are correct. That pic was made for a different question a few years ago. I did have thoughts that maybe MVVS might have made one as a .10 or something for using in certain competition classes. They could use a more thick cylinder sleeve with a smaller piston. It might make for a high perf .10 engine or something. But the weight and size would likely be a disadvantage.  But I did see that ASP makes a .12 long stroke engine though that is big and heavy, so ASP copied it from someone somewhere that had done it previously.
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