Twin-plug /4 motors...(pictures) |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Twin-plug /4 motors...(pictures) |
Mueller |
Jul 30 2003, 10:48 AM
Post
#1
|
914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
This is a Type I head, but it'll give you an idea for the 914 /4 motors.
Paul Guard, of Guard Transmission (maker of bitch'n parts for Porsche transmissions) loaned me this head to get an idea on how to twin-plug my motor. The secondary plug is a 10mm motocycle plug. A modified distributor cap from a Nissan 4 cyl truck engine is adapted to fit on the stock /4 distributor...the rotor is from Nissan as well. I have the drawings for this modification somewhere in my garage (IMG:style_emoticons/default/smile.gif) Using an aftermarket distributorless ignition would be ideal, but for cost savings, the above will work. There is a company that'll machine these heads for about 300 dollars or so (they do this for aircraft...not for performance, but for redundancy (saftey)) The sockets in the head are to give you an idea of the angles. Attached image(s) |
914werke |
Jul 30 2003, 11:45 AM
Post
#2
|
"I got blisters on me fingers" Group: Members Posts: 10,586 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Given the propensity for the heads to crack at the spark plug hole in stock form why not weld up and re-tap for the 10mm plugs anyway?
|
Lo-Fi Version | Time is now: 28th September 2024 - 09:08 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |