magnum xls 15 mods?
01-07-2008, 08:08 PM
#28
My Feedback: (116)
Join Date: Apr 2002
Location: Anoka,
MN
Posts: 81
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
from tower http://www3.towerhobbies.com/cgi-bin...?&I=LXRLG6&P=0
and from hobby people http://www.hobbypeople.net/gallery/210605.asp
and from hobby people http://www.hobbypeople.net/gallery/210605.asp
01-08-2008, 08:19 AM
#29
Senior Member
My Feedback: (17)
Join Date: Dec 2001
Location: Houston,
TX
Posts: 962
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
ORIGINAL: Strykaas
Hi all
I have always found the CVA too expensive for what it's worth. Where can I get an XLS 15 ?
Thanks !
Hi all
I have always found the CVA too expensive for what it's worth. Where can I get an XLS 15 ?
Thanks !
01-08-2008, 07:52 PM
#31
Senior Member
My Feedback: (17)
Join Date: Dec 2001
Location: Houston,
TX
Posts: 962
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
ORIGINAL: Strykaas
Heh a big thank you ! However, I can't see this XLS15 listed on their web site. Is it that new ?
Heh a big thank you ! However, I can't see this XLS15 listed on their web site. Is it that new ?
Don't worry, it's in stock and ready to ship. International shipping to France will be $28.50US
01-09-2008, 05:35 PM
#32
RE: magnum xls 15 mods?
Nice. Do you run that store ? What kind of shipping is it ? USPS trackable / insured ?
My plan is to run it on 5% nitro with a 7x7 prop... Which plug would you recommend ? I have tons of #8 OS plugs...
When was this engine first released btw ?
My plan is to run it on 5% nitro with a 7x7 prop... Which plug would you recommend ? I have tons of #8 OS plugs...
When was this engine first released btw ?
01-09-2008, 08:39 PM
#33
Senior Member
Join Date: Nov 2004
Location: london,
ON, CANADA
Posts: 571
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
I run my XLS on 10% omega, i use an OS #3 plug but a #8 should also work, this engine was around for a long time as a XL.15 then i think it was about 1-1/2 years ago they redid this engine as the XLS, it now makes more power yet weighs a little more than the XL.
01-09-2008, 09:38 PM
#34
Senior Member
Join Date: Dec 2002
Location: Lakewood,
NY
Posts: 795
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
I was wondering if turning the cylinder liner, closing off the ex-port a little at a time and test running till You get to the 17K RPM limit, might be the easiest thing to do?
Jeff[8D]
Jeff[8D]
01-10-2008, 05:37 PM
#35
Senior Member
Join Date: Feb 2006
Location: Jackson,
TN
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
RE: magnum xls 15 mods?
ORIGINAL: advanceandy
i too am trying to get down to 17500 i made a baffel and its running @17350 w ma 8x3 on 10% the db dropped from 103 to 95 thats the good heres the bad throttel responce from idle to 1/3 went into the dummper NFG the id hole currently is.242 dia
any help? any sugestions?
i too am trying to get down to 17500 i made a baffel and its running @17350 w ma 8x3 on 10% the db dropped from 103 to 95 thats the good heres the bad throttel responce from idle to 1/3 went into the dummper NFG the id hole currently is.242 dia
any help? any sugestions?
You might try the OS LA-15. After a few tanks of fuel they will generally turn 18,000+ with the 8x3, but can be slowed down simply by using lower nitro fuel (15%).
They OS is very durable, with a strong crankcase, and no bearings to go bad. Also, since the LA includes the OS A3 glow plug, it ends up being about $9 cheaper than the Magnum. And I don't think I've blown a plug in a couple years - the A3's are awesome.
Here's an article on LA-15 setup. [link=http://www.treneffrc.com/LA-15%20Clunk%20Tank%20Secrets.pdf]http://www.treneffrc.com/LA-15%20Clunk%20Tank%20Secrets.pdf[/link]
01-10-2008, 06:17 PM
#36
RE: magnum xls 15 mods?
I was wondering if turning the cylinder liner, closing off the ex-port a little at a time and test running till You get to the 17K RPM limit, might be the easiest thing to do?
Jeff
Jeff
01-12-2008, 12:58 AM
#38
RE: magnum xls 15 mods?
Hello again guys and Happy New Year to you all.
Ive had my new .15xls now for a coupe of months and I am quite fond of it on my ripper. One thing that maybe different at our club vs other clubs is that we dont have the 17,500 rpm limit that other clubs may be using, so I started just tweaking the engine a little here and there trying to get a few more r's out of her. I installed a header/tuned muffler from traxxas off of a car setup that I won off of fleabay for $3.00, thats right, THREE bucks, just to see if it would improve anything or make things worse. I had to cut the 90° bend off the muffler side of the header(was used for rc cars) so that I would have a straight pipe header, then just zip-tied the muffler back onto the header. The whole new header and muffler setup is about 6 and a half inches long now.I tried it out last week and I likes it!! I do run 30% heli fuel in this magnum( its 23% oil ) and Im still using the combat prop and I got a reading of 21850 when I tached it. This plane now has pretty much unlimited vertical, whereas before after about 2 seconds of vertical it would just slow down and stall. Im impressed with it.
Just wanted to give you guys an update on it.
Take care and build some "targets" for this years season
John
Ive had my new .15xls now for a coupe of months and I am quite fond of it on my ripper. One thing that maybe different at our club vs other clubs is that we dont have the 17,500 rpm limit that other clubs may be using, so I started just tweaking the engine a little here and there trying to get a few more r's out of her. I installed a header/tuned muffler from traxxas off of a car setup that I won off of fleabay for $3.00, thats right, THREE bucks, just to see if it would improve anything or make things worse. I had to cut the 90° bend off the muffler side of the header(was used for rc cars) so that I would have a straight pipe header, then just zip-tied the muffler back onto the header. The whole new header and muffler setup is about 6 and a half inches long now.I tried it out last week and I likes it!! I do run 30% heli fuel in this magnum( its 23% oil ) and Im still using the combat prop and I got a reading of 21850 when I tached it. This plane now has pretty much unlimited vertical, whereas before after about 2 seconds of vertical it would just slow down and stall. Im impressed with it.
Just wanted to give you guys an update on it.
Take care and build some "targets" for this years season
John
01-12-2008, 12:29 PM
#39
RE: magnum xls 15 mods?
Almost 22000 with a 8x3 prop? John, are you saying it will pull a 40 oz. SSC vertical? That's awesome! Makes me wonder what it would turn a .15 pylon prop?
One thing that I've noticed with mass produced ball bearing engines in general is that they are set up too tight for the cranks to spin freely with just a flick of the prop, including this engine and the CVA. There is more HP lost because of this drag than most realize. Check the feel of a Cyclon, Jett or Nelson and it is no mystery where some of their "magic" power comes from. I think the XLS would be a worthy engine to work with...some C/L combat flyers use them as practice engines for FAI, which says quite alot.
One thing that I've noticed with mass produced ball bearing engines in general is that they are set up too tight for the cranks to spin freely with just a flick of the prop, including this engine and the CVA. There is more HP lost because of this drag than most realize. Check the feel of a Cyclon, Jett or Nelson and it is no mystery where some of their "magic" power comes from. I think the XLS would be a worthy engine to work with...some C/L combat flyers use them as practice engines for FAI, which says quite alot.
