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Title: 4-cam 16V heads for Type 1 (air cooled) Post by: Jim Ratto on June 23, 2008, 16:31:30 pm Thanks Derek for the picture. I am anxious to see these on a motor, with cooling shrouds and intake, exhaust.
Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Diederick/DVK on June 23, 2008, 16:56:15 pm :o
looks pretty revolutionary 8) Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: kafercup on June 23, 2008, 19:01:51 pm No problem Jim :)
These are being done by Martin Bott at http://www.bugat5speed.de/ . This guy makes some beautiful pieces for fitting various porsche transmissions to the aircooled VW chassis. I'd be happy to test out a set of these :) Thanks Derek for the picture. I am anxious to see these on a motor, with cooling shrouds and intake, exhaust. Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Prowagen on June 23, 2008, 21:02:04 pm Wow they look good, have always loved the idea of twin cam heads and/or 16v heads.
I have seen a bug featured in the mags with the Arao versions but never heard any feedback, also upon internet searches seems arao haven't the best reputation. http://www.araoengineering.com/VWheads.htm Also I would worry about the rocker stress with these. How will the Bugat5speed ones work? I presume stock cam location is done away with and then the over head cams are driven off the crank pulley via belts? Cheers, Rob Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: ian c on June 23, 2008, 22:09:27 pm i have some info on twin-camds somewhere , will dig it out .
i also have contact details for a company that havce designed twin spark heads ....... very very good idea ;) Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Prowagen on June 23, 2008, 22:35:47 pm i have some info on twin-camds somewhere , will dig it out . i also have contact details for a company that havce designed twin spark heads ....... very very good idea ;) I believe Revmaster make twin spark heads too. Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Jon on June 23, 2008, 23:10:50 pm There have been several makers of twin spark heads for the type 1, for use in air planes.
Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: ian c on June 23, 2008, 23:14:00 pm interesting !!
would they be viable in a motorcar or is it an aviation specific design ? any info you can send me will be most appreciated :) Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: ian c on June 23, 2008, 23:27:35 pm i managed to get some info
http://www2.cal-look.com/members/Fetherolf/Fetherolf.html Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Jon on June 24, 2008, 00:02:09 am Some of these engines have the dual spark setup http://www.limflug.de/index.php?page=products_motors_40-75kw&lang=de (http://www.limflug.de/index.php?page=products_motors_40-75kw&lang=de)
Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Bewitched666 on June 24, 2008, 08:41:05 am Only saw that grey oval with the arao system but looked ugly from the backside with everything sticking out. 8)
Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Lee.C on June 24, 2008, 09:37:00 am Only saw that grey oval with the arao system but looked ugly from the backside with everything sticking out. 8) i think there was a feature in Ultra about this little puppy :) Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: ESH on June 24, 2008, 10:04:35 am ... i also have contact details for a company that havce designed twin spark heads ....... very very good idea ... On aero applications the twin spark per cylinder set up is for redundancy. An engine I saw a few years back had the set up (along with a roller crank and a Speedwell oil system amongst other things) but when that went into a car I think it only ran 4 sparks. Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Neil Davies on June 24, 2008, 15:41:29 pm I think when Russ Fellows used the Porsche 911 heads on his Type 4 motor he went twin spark, and the red supercharged buggy in Volksworld's letters page a month or two ago from an Australian show looked to have an extra set of plug leads.
Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Felix/DFL on June 24, 2008, 18:37:30 pm There is even a very nice solution for an 12V aircooled engine based on a typ-4 case.
Some Netherlands guys are/were? doing this project along the roots of Ludwig Apfelbeck. Nice thing about a 3V head is the extra room for the two sparks, and the good flow at the inlet like a 4V head. http://members.home.nl/r.vd.meulen/demo.htm http://www.apfelbeck.nl/ (http://www.apfelbeck.nl/) Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Udo on June 24, 2008, 22:36:31 pm Some of these engines have the dual spark setup http://www.limflug.de/index.php?page=products_motors_40-75kw&lang=de (http://www.limflug.de/index.php?page=products_motors_40-75kw&lang=de) If you want 2 spark plugs in an original head ask at CSP . They do this for some comanys Udo Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Airspeed on June 28, 2008, 08:47:55 am Thanks Derek for the picture. I am anxious to see these on a motor, with cooling shrouds and intake, exhaust. Those are not for a type 1 engine. Neither type 4. According to Martin Bott they will only work on his also to be designed new engine casing.Title: Re: 4-cam 16V heads for Type 1 (air cooled) Post by: Jim Ratto on June 29, 2008, 05:13:36 am Thanks Derek for the picture. I am anxious to see these on a motor, with cooling shrouds and intake, exhaust. Those are not for a type 1 engine. Neither type 4. According to Martin Bott they will only work on his also to be designed new engine casing.Oh... ok, thanks for clarification. I would enjoy seeing some more info on this new motor, is he a member here @ Lounge? Jim |