Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> Vintage racer build
jhelgesen
post May 20 2010, 06:35 AM
Post #1


Newbie
*

Group: Members
Posts: 42
Joined: 14-July 08
From: Charlotte
Member No.: 9,299
Region Association: None
We started cage work for a vintage racer 914-6...

Customer brought in a decent stripped tub, fitted for a complete fiberglass fender setup.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274358902.1.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274358902.2.jpg)

We started in with the main hoop

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274358902.3.jpg)

We'll be tying in all the suspension points.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274358902.4.jpg)

Trial fit the door bars last night.

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274358903.5.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JmuRiz
post May 20 2010, 09:07 AM
Post #2


914 Guru
*****

Group: Members
Posts: 5,565
Joined: 30-December 02
From: NoVA
Member No.: 50
Region Association: MidAtlantic Region
Looks good, but damn, you have my wall stripe idea before I did mine...is it paint (if so, VERY nice) or a vinyl decal?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jhelgesen
post May 20 2010, 09:10 AM
Post #3


Newbie
*

Group: Members
Posts: 42
Joined: 14-July 08
From: Charlotte
Member No.: 9,299
Region Association: None
QUOTE(JmuRiz @ May 20 2010, 11:07 AM) *

Looks good, but damn, you have my wall stripe idea before I did mine...is it paint (if so, VERY nice) or a vinyl decal?


Thanks. It is paint. 5 rolls of painters tape, 3 colors, and 5 nights of work.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ChrisFoley
post May 20 2010, 11:24 AM
Post #4


I am Tangerine Racing
*****

Group: Members
Posts: 7,986
Joined: 29-January 03
From: Bolton, CT
Member No.: 209
Region Association: None
I hope you're not welding the roll cage together with that little Lincoln in one of your pictures!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jhelgesen
post May 20 2010, 11:34 AM
Post #5


Newbie
*

Group: Members
Posts: 42
Joined: 14-July 08
From: Charlotte
Member No.: 9,299
Region Association: None
QUOTE(Racer Chris @ May 20 2010, 01:24 PM) *

I hope you're not welding the roll cage together with that little Lincoln in one of your pictures!


Our equipment works just fine, more than enough amps.... (IMG:style_emoticons/default/biggrin.gif)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274376857.1.jpg)

We just finished up this Acura TSX for the Continental Tire Challenge series

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274376857.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/i184.photobucket.com-9299-1274376857.3.jpg)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jimkelly
post May 20 2010, 12:22 PM
Post #6


Delaware USA
****

Group: Members
Posts: 4,969
Joined: 5-August 04
From: Delaware, USA
Member No.: 2,460
Region Association: MidAtlantic Region
if you can - pls be descriptive on the install of the fiberglass fenders - photos would be nice too. i assume they get epoxied in place? i see you cut away a decent amount of sheetmetal near the near lights. (IMG:style_emoticons/default/popcorn[1].gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
quadracerx
post May 20 2010, 02:09 PM
Post #7


Member
**

Group: Members
Posts: 428
Joined: 3-July 06
From: WA
Member No.: 6,366
Region Association: Pacific Northwest
I was wondering about those fenders and how they attach too....
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
carr914
post May 21 2010, 04:16 AM
Post #8


Racer from Birth
****************************************************************************************************

Group: Members
Posts: 124,854
Joined: 2-February 04
From: Tampa,FL
Member No.: 1,623
Region Association: South East States
QUOTE(Racer Chris @ May 20 2010, 01:24 PM) *

I hope you're not welding the roll cage together with that little Lincoln in one of your pictures!


It says NASCAR on it, doesn't that mean it's good ? (IMG:style_emoticons/default/lol-2.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jhelgesen
post May 21 2010, 04:22 AM
Post #9


Newbie
*

Group: Members
Posts: 42
Joined: 14-July 08
From: Charlotte
Member No.: 9,299
Region Association: None
QUOTE(carr914 @ May 21 2010, 06:16 AM) *

QUOTE(Racer Chris @ May 20 2010, 01:24 PM) *

I hope you're not welding the roll cage together with that little Lincoln in one of your pictures!


It says NASCAR on it, doesn't that mean it's good ? (IMG:style_emoticons/default/lol-2.gif)

We have to weld in little circles only to the left with it...hehehe
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
quadracerx
post Sep 20 2010, 09:59 PM
Post #10


Member
**

Group: Members
Posts: 428
Joined: 3-July 06
From: WA
Member No.: 6,366
Region Association: Pacific Northwest
Anyone have any suggestions on how to fasten these fenders properly?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
carr914
post Sep 21 2010, 04:37 AM
Post #11


Racer from Birth
****************************************************************************************************

Group: Members
Posts: 124,854
Joined: 2-February 04
From: Tampa,FL
Member No.: 1,623
Region Association: South East States
The fact that it is a race car, I would think that they used DZus Fasteners
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
scotty b
post Sep 21 2010, 05:22 AM
Post #12


rust free you say ?
***************

Group: Members
Posts: 16,375
Joined: 7-January 05
From: richmond, Va.
Member No.: 3,419
Region Association: None
QUOTE(carr914 @ Sep 21 2010, 02:37 AM) *

The fact that it is a race car, I would think that they used Zsus Fasteners



(IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/poke.gif) Dzus (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/laugh.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jhelgesen
post Sep 21 2010, 05:46 AM
Post #13


Newbie
*

Group: Members
Posts: 42
Joined: 14-July 08
From: Charlotte
Member No.: 9,299
Region Association: None
Quick release fasteners were not allowed by the sanctioning body, the panels were glued on with 3M panel adhesive. After several track events and some contact, the panels are still on and not going any where.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
carr914
post Sep 21 2010, 06:21 AM
Post #14


Racer from Birth
****************************************************************************************************

Group: Members
Posts: 124,854
Joined: 2-February 04
From: Tampa,FL
Member No.: 1,623
Region Association: South East States
QUOTE(scotty b @ Sep 21 2010, 07:22 AM) *

QUOTE(carr914 @ Sep 21 2010, 02:37 AM) *

The fact that it is a race car, I would think that they used Zsus Fasteners



(IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/poke.gif) Dzus (IMG:style_emoticons/default/rolleyes.gif) (IMG:style_emoticons/default/laugh.gif)


I was just starting my 2nd favorite beverage (IMG:style_emoticons/default/morning1.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
arkitect
post Sep 21 2010, 06:59 AM
Post #15


Senior Member
***

Group: Members
Posts: 617
Joined: 3-March 10
From: Stockton, CA
Member No.: 11,426
Region Association: None
Keep the picts coming, want to see the process of connecting full fiberglass fenders.

Dave (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sean_v8_914
post Sep 21 2010, 08:01 AM
Post #16


Chingon 601
****

Group: Members
Posts: 4,011
Joined: 1-February 05
From: San Diego
Member No.: 3,541
OT: I was watching monster truck jam. Blue Thunder hit some jumps and both rear shock consoles came apart. then they showed the carnage...WTF? it all came apart at the welds. can someone with real welding experience explain that? I say cold joints and poor penetration.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rick 918-S
post Sep 21 2010, 08:21 AM
Post #17


Hey nice rack! -Celette
***************

Group: Members
Posts: 20,946
Joined: 30-December 02
From: Now in Superior WI
Member No.: 43
Region Association: Northstar Region
QUOTE(sean_v8_914 @ Sep 21 2010, 09:01 AM) *

OT: I was watching monster truck jam. Blue Thunder hit some jumps and both rear shock consoles came apart. then they showed the carnage...WTF? it all came apart at the welds. can someone with real welding experience explain that? I say cold joints and poor penetration.


If it was 4130 it is likely poor penetration. (monster trucks likely would use light 4130) The other problem with welding 4130 is the rate of cooling. Mig welding 4130 can result in a concentrated local heating of the tubes with a quick flash cooling. This will cause a brittle condition and lock in stress. IIRC Tig welding can even be worse as the heat concentration is even more concentrated with a faster cooling cycle. In welding body panel seams tig is ideal because of the small heating and your ability to concentrate the work to a smaller area minimizing the warp factor.
That's why experimental air frames are gas welded. The molecules expand slower with the torch and further down the tubes. The tubes hold heat longer after the welding process is completed. Cooling is slower allowing the tubes to naturalize (tube and weld metal) restoring the strength.

Mild steel DOM can be mig welded with great success. It's a little heavier.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sean_v8_914
post Sep 21 2010, 09:58 AM
Post #18


Chingon 601
****

Group: Members
Posts: 4,011
Joined: 1-February 05
From: San Diego
Member No.: 3,541
does pre heating help?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rick 918-S
post Sep 21 2010, 11:36 AM
Post #19


Hey nice rack! -Celette
***************

Group: Members
Posts: 20,946
Joined: 30-December 02
From: Now in Superior WI
Member No.: 43
Region Association: Northstar Region
QUOTE(sean_v8_914 @ Sep 21 2010, 10:58 AM) *

does pre heating help?


Yes. No problemo. I'm note sure they still do this but NASCAR I think used to require the cages be placed in an oven after welding to be cycled up in heat and slow cooled to naturalize the cage. It doesn't take alot of heat I don't think. (can't remember all the little details it's been awhile..) But a rosebud with a low flame moving over and away from the joint several inches should accomplish a nice slow cooling cycle. IIRC it doesn't even have to be red or cherry, just heated and not overheated. There should be alot of info on the airframe builders forums. I always gas weld 4130. There is a specific filler rod for 4130. I have some in the garage. Can't remember the part number.

Sorry for the hi-jack (IMG:style_emoticons/default/wacko.gif) I tend to ramble. Hopefully some of this dribble will be useful.. (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
msglaigaie
post Sep 21 2010, 11:46 AM
Post #20


msglaigaie
**

Group: Members
Posts: 210
Joined: 14-March 05
From: Bellingham, Washington
Member No.: 3,761
Region Association: Pacific Northwest
I have the same fenders and I am very interested in how you cut and fitted. Share more photos please.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 9th May 2025 - 01:54 AM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
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 ...