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Posted by: arne Jun 17 2017, 02:41 PM

I got a pair of these in a batch of misc. 914 parts. Or rather, we think these springs are for 914. Very blue, 1/2" wire, 14" free length, about 7 coils (allowing for the flattened ends), correct diameter for 914 at 4.25" (110mm?). Seems like they'd be rather stiff. Anyone recognize them? Need to figure out what they are before I offer them for sale.

Posted by: SixerJ Jun 17 2017, 03:22 PM

http://m.ebay.de/itm/Porsche-914-914-6-Feder-Sportfedernsatz-blau-10-5mm-/172477006327?hash=item28286e41f7%3Ag%3APgsAAOxywbJSUqxR&_trkparms=pageci%253Ac4d992e3-53a2-11e7-a403-74dbd180739f%257Cparentrq%253Ab7ed9a1815c0aa411ae6216ffffd2559%257Ciid%253A19

Posted by: arne Jun 17 2017, 03:37 PM

Those are similar color, but lots more coils and thinner wire.

Posted by: ConeDodger Jun 17 2017, 04:11 PM

Look like Weltmeister 140# springs... Mine had the number 140 on the outside of the spring coil.

Posted by: arne Jun 17 2017, 05:37 PM

I looked again at both springs carefully, Rob. No marking at all. Drat! The Weltmeister 100 lb. I put on the rear of the car are black and well marked, both brand and rate.

The 100 lb. springs are 11mm wire, these blue are a full 1/2" (12.7mm). so probably at least 140 lb., perhaps more.

Would be nice to know for sure though.

Posted by: The Cabinetmaker Jun 17 2017, 06:39 PM

A 140 lb spring will compress 1" when 140 lbs is applied.

Posted by: r_towle Jun 17 2017, 09:33 PM

They can be tested

Posted by: KevinW Jun 18 2017, 06:10 AM

I have a similar set, mine are black with a gray stripe.
14 1/8" long and 7/16" wire.

Posted by: Optimusglen Jun 18 2017, 11:10 AM

You can calculate the spring rate pretty easilly. you need the free length, , number of sprung coils, wire diameter, coil diameter, and end style. You can guess on material since all of the steels are pretty close.

http://Http://www.thespringstore.com/spring-calculator/spring-rate-calculator.html

Posted by: Chris914n6 Jun 18 2017, 12:38 PM

Look like the 200lb springs RH was selling back in my day.

Posted by: arne Jun 18 2017, 01:00 PM

OK, that sounds likely. The guy I got these from has had them a long time, and had no info on them from the guy he got them from. I've used a few online calculators and all have come up a bit over 200 lb/in.

As a 914 noob, who is RH?

Posted by: maf914 Jun 18 2017, 05:45 PM

I really don't know, but RH might be Renegade Hybrids who do V-8 conversions and parts. Just a guess.

Posted by: The Cabinetmaker Jun 19 2017, 12:09 PM

Restoration design