Yamaha apex

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Ls1swap

Member
Joined
Apr 18, 2020
Messages
12
New here and did a search and didn't find anything on the subject. Has anyone put a yamaha apex in a sonerai? They weigh about 140lbs starter and all and make a 130hp. Seems like it would be a good fit.
 

lightningjack

Member
Joined
Sep 15, 2007
Messages
6
hi guys. I'm building a 2ls and am looking around for an engine. I've seen a 200hp version of the Apex put out by Edge Performance. It comes as a complete package with wiring loom and ECU ready to install. It weighs the same as a Rotax 915iS. Is this a viable option for my 2LS or is it too much power. Thanks in advance
 

Elviar

Well-Known Member
Joined
Feb 25, 2015
Messages
48
Location
Ortonville, MI
How much power does it make at 3600 RPM, or do you plan to use a speed reduction device? If you could actually get 200 HP to the propeller it might be a handful. In any case, you have to be mindful of the never exceed speed limit.
 

SoneraiKid

New Member
Joined
Jun 9, 2017
Messages
3
Location
Seattle, WA
I think the apex would be a good candidate in trimmed down NA form. As light as possible, Edge Performance adds turbos and makes big power. A cowling and cooling would be the biggest challenges.
 

Bil438

Well-Known Member
Joined
Oct 17, 2007
Messages
802
My Sonerai II LS has a Jabiru 3300. It gets off quickly, has reached 200 kts, climbs at 1500 fpm on mild days. Probably can exceed the Vne and the G limits in rate one turns. Weighs say 190 lbs. At 3300 rpm it delivers 127 hp. Can't imagine a reason why 127hp would not be enough? Also really like the 7 main bearings. How many mains in the Apex?. With a propeller, it matters
Bill

hi guys. I'm building a 2ls and am looking around for an engine. I've seen a 200hp version of the Apex put out by Edge Performance. It comes as a complete package with wiring loom and ECU ready to install. It weighs the same as a Rotax 915iS. Is this a viable option for my 2LS or is it too much power. Thanks in advance
 

n109jb

Active Member
Joined
Jun 9, 2013
Messages
32
Location
Morris, IL
My Sonerai II LS has a Jabiru 3300. It gets off quickly, has reached 200 kts, climbs at 1500 fpm on mild days. Probably can exceed the Vne and the G limits in rate one turns. Weighs say 190 lbs. At 3300 rpm it delivers 127 hp. Can't imagine a reason why 127hp would not be enough? Also really like the 7 main bearings. How many mains in the Apex?. With a propeller, it matters
Bill
Apex uses a reduction unit so it likely has 2 bearings on the prop shaft. Unless you want to turn the prop 8-9000 rpm
 

Thaddeus

Well-Known Member
Joined
Jul 9, 2014
Messages
197
Location
Valparaiso, Indiana
Aeromomentum makes a nice engine package that uses new engines and comes with FADEC fuel injection + PSRU. 117 HP low profile is $12,500. 185#. This hp is nearly 2x original Sonerai VW spec, so plenty of scoot. 4 g/hr @ 55% cruise. They offer more HP versions, but do you really need it? If you are trying to run 150 HP, your 10 gallon tank is going to drain very quickly so you'd be spending more time at the pump than you'd save getting anywhere. http://www.aeromomentum.com/am15.html



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