Power from a 914 aircooled, Questions about potential |
|
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. |
|
Power from a 914 aircooled, Questions about potential |
Mwood |
Feb 11 2013, 04:58 PM
Post
#1
|
Member Group: Members Posts: 56 Joined: 11-February 13 From: Bay Area Member No.: 15,509 Region Association: Northern California |
Hey, Im new to forums, I apologize if this is in the wrong section.
I have been looking to start a project car since relocating to the bay area forced me to abandon my previous one. i really want to work on some kind of 914 autox/road car/rod project but I am not sure of a few things and wondered if you guys could help me clear this up a bit. I love the looks of the 914, especially ones with the sheridan fiberglass. I love the lines, Size, style, simplicity of the cars. I am also very interested in air cooled engines because i appreciate simple, basic mechanicals and i like the simplicity of carbs and im still pretty green with engine work and complex car mechanics. And something about putting a big american v8 in a car like this irks me a little. Seems a little ham fisted. Is it feasible to get around 250-300 torque/hp from a built aircooled 914 engine with something like dual webers and internal mods? Is that overly excessive for a 914 street/mild track car? I dont really want to spend over 2 to 3 grand modifying the engine. I have read that 1.7L 914 engines accept upgrades better but i feel like the displacement would need to be increased to get that much power. Mechanically i believe i am capable of bolting an engine together (i rebuilt my previous nissan KA engine a couple times) but details like internal engine upgrade specifications and the power gains they yield are foreign to me. My idea is to do some kind of tuned car with 911 suspension and running gear/ built carbed aircooled, seriously lightened interior and maybe a fiberglass widebody if i get that extreme. Please give me some feedback! Thanks! |
mittelmotor |
Feb 12 2013, 01:37 PM
Post
#2
|
Member Group: Members Posts: 334 Joined: 21-May 12 From: SoCal Member No.: 14,464 Region Association: None |
I second the recommendation for HPH. Rich Bontempi's the guy there...I bought 5-lug rear hubs from him (converted 4-lugs, but with extra metal welded in at the stud seats) and 911 front struts/hubs/discs with M calipers. You can use 914/6 rear rotors with the stock 914 calipers, but uou neet to lathe down their OD a couple of mm for clearance.
I don't think the V-8 approach is ham-fisted at all, especially if you go with an aluminum LS1, but I'll admit it's not the ideal setup for racing/auto-x. Total weight is equivalent to a "big 6" conversion...about 150 lb. increase, most of it within the wheelbase. Keep the power/torque reasonable, say 250/250 to the wheels and the 901 will be fine, and it's an easy job to lengthen the shift rod 1.25". Contrary to rumor, more weight up high will not ruin the handling; heavy crank, harmonic damper, rods, etc. are pretty low in the engine, composite manifold up high is pretty light, etc. F-Body wet sump gives good clearance...easy. Mine's fuel injected with "modern" (vintage 2000) fuel injection, so driveability is wonderful, and it gets 25 mpg on the highway with taller HB gears in 5th. Probably quieter at cruise than stock Type 4...hot tip is to merge exhaust to eliminate drone of true dual. Mine has a transverse muffler with two inlets and two outlets. It's soooo much fun sneaking up on unsuspecting Corvettes, M3s, etc.!! A Type 4 with this kind of output would be highly unlikely, cost tens of thousands of dollars and have a life expectancy of a snowman in Phoenix. You can keep feeding crack to the hamster, but at some point...kabloooey! The V-8 is nicely understressed. Still have the MR2 I sold you? (IMG:style_emoticons/default/biggrin.gif) Or maybe you're a different mwood? --Doug |
DBCooper |
Feb 12 2013, 02:14 PM
Post
#3
|
14's in the 13's with ATTITUDE Group: Members Posts: 3,079 Joined: 25-August 04 From: Dazed and Confused Member No.: 2,618 Region Association: Northern California |
|
Lo-Fi Version | Time is now: 10th June 2024 - 02:08 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 ... |