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> Lightweight doors
Mueller
post Jul 26 2005, 11:33 AM
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QUOTE (grantsfo @ Jul 25 2005, 07:26 PM)
Anyone have ideas on sources for lightweight 914 doors that would allow stock door handles and windows to work? How much weight can be saved by going from 1974 to earlier doors?

am I the only crazy person that has thought to have 2 sets of doors....1 "normal/safe" set for street and 1 extra-lite "race/auto-x" only doors???

of course a better/quicker method of R&R'ing them would make it easier........
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neo914-6
post Jul 26 2005, 12:22 PM
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QUOTE (Mueller @ Jul 26 2005, 09:33 AM)
QUOTE (grantsfo @ Jul 25 2005, 07:26 PM)
Anyone have ideas on sources for lightweight 914 doors that would allow stock door handles and windows to work?  How much weight can be saved by going from 1974 to earlier doors?

am I the only crazy person that has thought to have 2 sets of doors....1 "normal/safe" set for street and 1 extra-lite "race/auto-x" only doors???

of course a better/quicker method of R&R'ing them would make it easier........

No I thought about it too since I have both sets (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)

Quick release hinges (with needle bearings)! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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J P Stein
post Jul 26 2005, 12:39 PM
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Complete late door......bathroom scale, 64lbs.
Totaly stripped (including inner panel) early door 20 lbs.
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URY914
post Jul 26 2005, 12:47 PM
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My fiberglass door skin.....5 pounds (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif)

P
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URY914
post Jul 26 2005, 06:46 PM
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I weighed my collection of doors tonight.

They are as follows:

This is a empty LATE door. Beam cut out, no handles, no glass, no nothing.

21 pounds.



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URY914
post Jul 26 2005, 06:48 PM
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Late door WITH beam and latch. No handles, glass etc, etc.

39 pounds


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URY914
post Jul 26 2005, 06:51 PM
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EARLY door with everything (including the inner panel and handles which were not on when this pic was taken)

45 pounds


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URY914
post Jul 26 2005, 06:55 PM
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This means:
a. late door with all the pieces is pretty darn heavy.

b. early door stripped out would be pretty darn light.

c. I have four doors for sale. PM me.

Paul
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SLITS
post Jul 26 2005, 07:00 PM
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QUOTE (URY914 @ Jul 26 2005, 05:55 PM)
This means:
a. late door with all the pieces is pretty darn heavy.

b. early door stripped out would be pretty darn light.

c. I have four doors for sale. PM me.

Paul

I assume these doors came from the highly touted 914 Limo (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)
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grantsfo
post Jul 26 2005, 07:06 PM
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QUOTE (nebreitling @ Jul 26 2005, 09:15 AM)
QUOTE (Randal @ Jul 26 2005, 09:04 AM)
From the PCA rule book:  Glass: The car must have full windows (glass or Plexiglas).

Windows don't have to be glass.

exactly. although plexiglass would be crazy -- why do they write that? you want polycarbonate, obviously.

I just love the rule book. Especially when it comes to wheels in Fm. You have to reference two differnt sections to figure out that 8" wheels are legal with DOT rated R compound tires.

I'll have to dig into the rule book. I'm prety handy with my grinder and my dremel. I'm thinking I could knock some weight out of the existing doors and keep them FM or GM legal. I was just thinking if there is a resource for reskined doors that will keep me in FM or GM classes I'd like to stay at that level of now. Seems like a good group of us are commited to FM ior new equivelent n Nor Cal so maybe I'll be a good boy and stay with class specs.
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Trekkor
post Jul 26 2005, 07:35 PM
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Uh, guys...Look at page 23 of the 2005 Zone 7 PCA competition series code book.

Line item g) clearly states: "Glass: The car must have full glass ( no plexiglass windows ) ".

Sorry to burst your bubble... (IMG:http://www.914world.com/bbs2/html/emoticons/sawzall-smiley.gif)

KT
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Randal
post Jul 26 2005, 07:44 PM
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It depends upon your your category within your class: If you're running Street Modified then you can use plexiglass as outlined below. And if that rule didn't apply then everyone running race tires would have to go back to 205's.

4.6 STREET MODIFIED CATEGORY

Purpose: This is a category for highly modified cars that are still driven on the street. Basically anything goes.
Batteries: Any battery may be used.
Tires:
Street tires: Any street tire/wheel combination may be used. Tires must be DOT approved.
Race Tires: Race tires may be used, but may not be mounted on wheels wider than seven (7) inches or one inch wider than stock, whichever is greater. This leaves open the possibility of cars being competitive on very large street tires.
Interior: The car must have full upholstery, carpeting and two seats. This keeps the category separate from the Modified Category.
Fuel Tank Location: Fuel tanks/cells may be relocated, but not into the passenger compartment.
Porsche: The chassis, engine and transmission must be Porsche.
Glass: The car must have full windows (glass or Plexiglas).
Electrical: Headlights, taillights, brake lights and turn signals must work.
Induction System: Twin turbos may be used. Fuel mixture may be any injection or carburetion system. These changes are not permitted in the Production Category due to high costs.
Engine Parts: Different cams may be used. Any brand pistons and cylinders are permitted. These changes are not permitted in the Production Category due to high costs.
Gears, Ring & Pinion: Different gears and/or ring & pinion may be used. These changes are not permitted in the Production Category due to high costs, and to maintain the integrity of the classes.
Tails, Wings, Airdams: Any tail, wing or airdam is permitted. The rear device may not obstruct rear vision.
Brake Bias Valves: Any brake bias valve may be used.
Suspension Struts: Any suspension strut may be used.
Camber: Camber settings are free.
Welding/Machining: Suspension modifications through welding or machining are permitted.
Brakes: Any caliper and/or rotor may be used.
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URY914
post Jul 26 2005, 07:45 PM
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QUOTE (URY914 @ Jul 26 2005, 10:47 AM)
My fiberglass door skin.....5 pounds (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif)

P

I stand corrected.
I just weighed the door I made for Joe and it's 4 pounds. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)
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Randal
post Jul 26 2005, 07:57 PM
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FM is an Advanced Class for Street Modified Cars as outlined previously.

My Webpage

Check out the web site, scroll down to "Advanced Classes."
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Brad Roberts
post Jul 26 2005, 08:01 PM
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Last time I cut a door brace out, I *thought* it weighed close to 12lbs.

I read through everything posted and didnt see a door beam listed weighed out.



B
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URY914
post Jul 26 2005, 08:19 PM
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QUOTE (Brad Roberts @ Jul 26 2005, 06:01 PM)
Last time I cut a door brace out, I *thought* it weighed close to 12lbs.

I read through everything posted and didnt see a door beam listed weighed out.



B

Brad, you mean just the weight of the beam?

I don't have the beam I cut out anymore, so I can't weigh it now.

P
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Joe Ricard
post Jul 26 2005, 08:41 PM
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QUOTE (URY914 @ Jul 26 2005, 05:45 PM)
QUOTE (URY914 @ Jul 26 2005, 10:47 AM)
My fiberglass door skin.....5 pounds (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif)

P

I stand corrected.
I just weighed the door I made for Joe and it's 4 pounds. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

Whoo Hooo! (IMG:http://www.914world.com/bbs2/html/emoticons/aktion035.gif)
I just Love Street mod. it's perfect for a car tuner like me. Infact I just buttoned up my side shift transaxle tonight. Flipped 5th. new synchros and seals. I just can't wait to get that swapped out.
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Randal
post Jul 26 2005, 08:52 PM
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QUOTE
Last time I cut a door brace out, I *thought* it weighed close to 12lbs.


Wasn't the purpose side impact, so it had to be beefy.
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brant
post Jul 27 2005, 09:14 AM
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I'm sure my bathroom scale isn't perfectly calibrated...
but we put extra holes into the leading edge and into the hinges:


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brant
post Jul 27 2005, 09:15 AM
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We also took a sanding disc and cleaned off all of the spray on undercoater that is typically inside the door cavity. Then added extra holes to the bottom edge of the door.

came out to 17lbs according to my non scientific scale:


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