| Author |
Message |
[email protected]
Samba Member
Joined: August 15, 2002
Posts: 4394
Location: Brew City
|
 Posted: Tue Nov 25, 2014 7:46 am Post subject: |
 |
|
Yeah, it just depends on what kind of plane it was designed for. The Sonex kits use a case that has the nose machined to fit the prop hub, has a large hole machined in the bell housing side and also is clearanced like an automatic case. I have built longblocks for planes that would directly transfer to a car with no mods. Again, just depends on how it was designed.
_________________
Please "LIKE" us on facebook to see what we are working on.
https://www.facebook.com/mofoco?ref=ts&fref=ts
www.mofoco.com
Cylinder Head Reference Sheet |
|
| Back to top |
|
 |
turboblue
Samba Member
Joined: October 09, 2003
Posts: 4216
Location: Central Indiana
|
| Posted: Wed Nov 26, 2014 8:31 am Post subject: |
|
|
| mark tucker wrote: |
yup somethen that looks like that on the inside would skeer the bejeebers out of me.no way it could possiably work in a car...so does any body know the reason for the high octane avgass???I know why but there seen to be some missconceptions. |
So what is so scary about that engine Mark?
Other than a cam change, it should be good as any other.
_________________
Gary
Turbo VW Sand Drag Buggy
"If you don't run into the Devil every once in awhile, you must be going in the same direction!" |
|
| Back to top |
|
|
Quokka42
Samba Member
Joined: December 02, 2010
Posts: 3117
Location: Melbourne, Australia
|
| Posted: Wed Nov 26, 2014 1:17 pm Post subject: |
|
|
The high octane rating of Avgas is due to the fact the engine needs to take off at normal atmosperic pressure on the ground then run at a much lower atmospheric pressure at cruise. If the engine were built with enough compression to run properly at altitude it would detonate on takeoff with regular fuel. Traditionally, the high "octane" of avgas was obtained using large amounts of tetraethyl lead.
_________________
There has only ever been one man who was perfect, and they nailed Him to a cross. |
|
| Back to top |
|
|
mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
|
| Posted: Wed Nov 26, 2014 1:31 pm Post subject: |
|
|
| turboblue wrote: |
| mark tucker wrote: |
yup somethen that looks like that on the inside would skeer the bejeebers out of me.no way it could possiably work in a car...so does any body know the reason for the high octane avgass???I know why but there seen to be some missconceptions. |
So what is so scary about that engine Mark?
Other than a cam change, it should be good as any other. |
NOTHING.  go figure. |
|
| Back to top |
|
|
70turbobaja
Samba Member
Joined: September 18, 2014
Posts: 50
|
| Posted: Wed Nov 26, 2014 10:20 pm Post subject: |
|
|
| Some planes that have a vw engine also have a tapered crankshaft for the prop. Well my dads kit plane does atleast My.02 |
|
| Back to top |
|
|
bluebus86
Banned
Joined: September 02, 2010
Posts: 11075
|
| Posted: Thu Nov 27, 2014 10:44 am Post subject: |
|
|
| Quokka42 wrote: |
| The high octane rating of Avgas is due to the fact the engine needs to take off at normal atmosperic pressure on the ground then run at a much lower atmospheric pressure at cruise. If the engine were built with enough compression to run properly at altitude it would detonate on takeoff with regular fuel. Traditionally, the high "octane" of avgas was obtained using large amounts of tetraethyl lead. |
Airplane motors are Engineered differently than car motors. The Engineering requirements are different for an airplane verses a car. Engineers understand these things and design accordingly.
Aircraft can get away with lower octane fuel, in the correctly Engineered motor but to compensate for the thin air up there, they may have a forced induction system (Turbo, Super charger). These components are Engineered to work properly, as the life of the pilot and passengers depends on it.
Without well thought out Engineered systems, man would not be capable of flight. Engineering makes human flight not only possible, but also very safe.
_________________
Help Prevent VW Engine Fires, see this link.....Engine safety wire information
Stop introducing dirt into your oil when adjusting valves ... https://www.thesamba.com/vw/forum/viewtopic.php?t=683022 |
|
| Back to top |
|
|
|
