$52 GMS 32 with $55 tuned muffler  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Glow Engines >> $52 GMS 32 with $55 tuned muffler
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$52 GMS 32 with $55 tuned muffler - 12/6/2005 6:35:42 AM   
MyWay


 

Posts: 451
Joined: 2/21/2004
From: Benicia, CA, USA
Status: offline 		With the exhaust timing changed and head clearance set at .020" The GMS 32 (throw away engine) will spin an apc 8/7 at 18800 rpm on 15% fuel and a jett tuned muffler. Still have not been able to get it to shut off. Have to work on that issue.
       Post #: 1

RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 12:03:11 PM   
DarZeelon



Posts: 6993
Joined: 4/9/2003
From: Rosh-Ha'Ayin, ISRAEL
Status: online 		MyWay,


For whatever the reason (low production volumes, high local wages, 'I like it when my pockets are really full', Etc..), the JettStream and the UltraThrust from Nelson/Performance Specialists are way beyond their worth to most modelers (or many more would be buying them, don't you think?).

If you just invested $5-$10 more in a larger engine, from the same company as yours (i.e. buy a GMS .47, instead of buying the GMS .32, F.E.), you would have more power then your smaller engine could ever put out, even with these impressive power boosters.

And it will not cost you an arm and a leg...

You will also get a much longer life, from a larger engine running less strained.


About your inability to shut your GMS engine down; there have been several threads in RCU about this issue.
Do a search.

< Message edited by DarZeelon -- 12/6/2005 12:10:54 PM >

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 12:43:07 PM   
downunder



Posts: 3171
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		Dar is correct that a larger engine is a better solution than adding a pipe. For that reason I'm looking to replace the engine in the model below.

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 1:01:43 PM   
ckangaroo70



Posts: 2076
Joined: 10/3/2003
From: London Mills, IL, USA
Status: offline
quote:

ORIGINAL: downunder

Dar is correct that a larger engine is a better solution than adding a pipe. For that reason I'm looking to replace the engine in the model below.

Great looking Plane, but it appears you may have it underpowered a bit.

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 1:05:23 PM   
Evil Homer


 

Posts: 319
Joined: 9/27/2003
From: CubbingtonWarwickshire, UNITED KINGDOM
Status: offline 		Hey DU, what is the glide like on that thing

What is the weight penalty though going from the 32 to the 47 versus added weight tuned muffler on the 32.

I have a OS32F with stock muffler on a Shrike 10 , already moves at a fair rate of knots, would like to get more RPMs out of it, my choices are pretty limited:

OS46 - already had to carve away half the front to sqeeze the 32 in there, no chance on the getting the 46 in there unless i want something similar to downunder....
Tuned pipe - good option, probably get the best increase of RPM's
Tuned muffler - bolt on solution - probably another 1000 r's

The tuned muffler from PS or Jett will both be cheaper and no doubt less frustrating the setting up the full pipe.

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 4:42:06 PM   
MyWay


 

Posts: 451
Joined: 2/21/2004
From: Benicia, CA, USA
Status: offline 		Dar, I think you missed point. The cost on both the tuned muffler and engine is very reasonable. Also, the tuned muffler can be used on various side exhaust engines from .20 to .39.

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 5:23:40 PM   
j.duncker



Posts: 1137
Joined: 6/22/2004
From: Where I park the RV, AK, USA
Status: offline 		One of my all time favourite combo's is a MDS 38 £35 with a Genesis Throttle Pipe £45.

Very powerful instant throtle response and lighter than a 40.

It's at least 6 years old and has had many gallons of fuel through it.

Oh yeah and it only gives up when it runs out of fuel.

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 5:34:13 PM   
DarZeelon



Posts: 6993
Joined: 4/9/2003
From: Rosh-Ha'Ayin, ISRAEL
Status: online
quote:

ORIGINAL: MyWay

Dar, I think you missed point. The cost on both the tuned muffler and engine is very reasonable. Also, the tuned muffler can be used on various side exhaust engines from .20 to .39.



...which have the same bolt spacing and a similar exhaust port shape...

If Jett and Nelson could make and sell these very effective tuned silencers in great numbers, they would cost just $20-25, which would be a reasonable price.

Prices like $55-75 for items like this are not reasonable, for anyone who has to work for his living, feed his family, Etc..

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 6:26:56 PM   
Kmot



Posts: 7718
Joined: 6/11/2003
From: Northridge, CA, USA
Status: offline 		DU: I just love that little speedster!!

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 8:00:57 PM   
Ernie Misner


 

Posts: 3155
Joined: 7/5/2002
From: Tacoma, WA, USA
Status: offline 		DU, don't tell me it really....... flies!

Ernie

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 10:26:27 PM   
krayzc-RCU



Posts: 5930
Joined: 3/26/2002
From: Kannapolis, NC, USA
Status: offline 		i like the little fellow

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RE: $52 GMS 32 with $55 tuned muffler - 12/6/2005 10:29:34 PM   
desmobob



Posts: 594
Joined: 12/2/2001
From: Whitehall, NY, USA
Status: offline
quote:

ORIGINAL: downunder

Dar is correct that a larger engine is a better solution than adding a pipe. For that reason I'm looking to replace the engine in the model below.



Nice job! Great touch, adding the original kit box and rolled plans in the background.

Bet you can't bring that one down to idle and float it in for landing....

Good flying,
desmobob

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RE: $52 GMS 32 with $55 tuned muffler - 12/7/2005 6:15:19 PM   
MyWay


 

Posts: 451
Joined: 2/21/2004
From: Benicia, CA, USA
Status: offline 		Dar, Why can't mvvs make a bolt on tuned muffler for $20? Ever price a full tuned pipe lately? When comparing a mvvs tuned muffler to a jett or ultra thrust which one is more durable and hassle free? You get what you pay for.

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       Post #: 13

RE: $52 GMS 32 with $55 tuned muffler - 12/8/2005 3:24:33 PM   
bob27s



Posts: 4737
Joined: 4/9/2002
From: Cleveland, OH, USA
Status: offline
quote:

ORIGINAL: downunder

Dar is correct that a larger engine is a better solution than adding a pipe. For that reason I'm looking to replace the engine in the model below.


ROFL !!!


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