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questions on 5 point harness install

GaroldShaffer	May 31 2005, 09:57 AM Post #1
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	Going to install my five piont belts this week, this a street & AX car. I have two questions: 1) where should the hole be place in the floor for the eye bolt to secure the strap that goes through the bottom of the seat? 2) I plan to back this with a big ass washer and then double nut the bolt. Is this enough? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)

Joe Bob	May 31 2005, 09:59 AM Post #2
Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None	Do you have a cage, harness bar or a race seat?

GaroldShaffer	May 31 2005, 10:09 AM Post #3
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	No cage or harness bar. I have the Lemans seat. Attached image(s)

J P Stein	May 31 2005, 10:11 AM Post #4
Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None	I just did this a couple weeks ago. I used a long bolt thru the channel section below the seat,(bolt parallel to the floor) for the nut crusher attach point. This puts the strap endmountthingy verticle which, to me, is the proper attitude.

GaroldShaffer	May 31 2005, 10:11 AM Post #5
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	going to install like this picture of trekkor but with the 5th belt added. Attached image(s)

Joe Bob	May 31 2005, 10:21 AM Post #6
Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None	Depending on the sanctioning body that you run with...they require that the ends be mounted to the floor. A guide bar is a must have in that case.

d914	May 31 2005, 10:31 AM Post #7
Advanced Member Group: Members Posts: 2,331 Joined: 12-July 03 From: Atlanta, ga Member No.: 904 Region Association: South East States	in the old days, i the shoulder straps mounted to the fire wall and used the snap in type with a scca , about 4in, square plate on the outside. for the floor sub belt used the large round washer type and again snap in ends.

groot	May 31 2005, 12:31 PM Post #8
Dis member Group: Members Posts: 896 Joined: 17-December 03 From: Michigan Member No.: 1,444	You'll be fine with a thick fender washer. That's what I use.

Aaron Cox	May 31 2005, 12:39 PM Post #9
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California	i have the exact same harnesses as trekkor... going to use eye bolts for the shoulders and sub belts, and figure a way to tie in the laps (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif)

GaroldShaffer	May 31 2005, 01:21 PM Post #10
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	I sent Dan (xitspd) a PM also but I will ask this question here. The eye bolts sent with hardware kit are a little short to go thru the firewall and to have enough thread for washers & nuts. I went to a few hardware stores during lunch today but they did not have the same style eyebolts that was supplied with the hardware kit. The eyebolt looks like the one pictured below except it looks polished? Attached image(s)

GaroldShaffer	May 31 2005, 01:27 PM Post #11
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	Well never mind if I would have done just little research before I posted about the eyebolt I would have found I can get them from Racer Wholesale (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)

Aaron Cox	May 31 2005, 01:31 PM Post #12
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California	are they metric? ioportracing has the best prices on harness hardware ive seen

GaroldShaffer	May 31 2005, 01:39 PM Post #13
You bought another 914? Group: Benefactors Posts: 7,622 Joined: 27-June 03 From: Portage, IN Member No.: 865 Region Association: None	I would say yes to mertic. The thread looks to be about 20 mm long. What would be a good lenght for the fire wall and floor? 50MM? Edit 50mm is approx 1 -7/8" long, I would think you would need longer than that for the fire wall? If I mount the nut crusher strap like JP said he did then the threaded part of the bolt should be approx 5 inches long? This post has been edited by itsa914: May 31 2005, 01:44 PM

Aaron Cox	May 31 2005, 01:58 PM Post #14
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California	the firewall is like 1/4 thick or a lot les.... why would you need 2 inches of thread... for me the eyebolt would go through, backpad, big ass washer, firewall, big ass washer, nut. 20mm of shank should be good. i need to figure out how to do my laps.... they have spring clips and need eyebolts to install (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif)

Joseph Mills

May 31 2005, 02:18 PM

Post #15

on a Sonoma diet now...

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QUOTE (itsa914 @ May 31 2005, 01:39 PM)

Edit 50mm is approx 1 -7/8" long, I would think you would need longer than that for the fire wall? If I mount the nut crusher strap like JP said he did then the threaded part of the bolt should be approx 5 inches long?

Garold,

I used 2" long bolts for the firewall and they are more than long enough (see photo). However, I have removed the firewall pad behind the leather cover in the cockpit side of the firewall, and have removed the firewall pad in the engine bay. With that additional padding, I think 2" long bolts should still get you there.

I mounted my fifth belt thru the channel brace as JP did. I used a 5" bolt for that.

My lap belts simply attached to the existing lap belts (which I left in) anchors.

Here are a few pics for ya.

Attached image(s)

Joseph Mills	May 31 2005, 02:19 PM Post #16
on a Sonoma diet now... Group: Members Posts: 1,482 Joined: 29-December 02 From: Oklahoma City, OK Member No.: 39	.. Attached image(s)

ArtechnikA

May 31 2005, 02:22 PM

Post #17

rich herzog

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QUOTE (itsa914 @ May 31 2005, 03:39 PM)

I would say yes to mertic.

i wouldn't.

almost NONE of this stuff is metric.

even the bolts that fasten your belts to the car are NOT metric; they are 7/16" ... (7/16"-20 i think - might be -24...)

Joseph Mills	May 31 2005, 02:23 PM Post #18
on a Sonoma diet now... Group: Members Posts: 1,482 Joined: 29-December 02 From: Oklahoma City, OK Member No.: 39	Last image Attached image(s)

GaroldShaffer

May 31 2005, 02:53 PM

Post #19

You bought another 914?

Group: Benefactors
Posts: 7,622
Joined: 27-June 03
From: Portage, IN
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QUOTE (joseph222 @ May 31 2005, 12:18 PM)

QUOTE (itsa914 @ May 31 2005, 01:39 PM)

Edit 50mm is approx 1 -7/8" long, I would think you would need longer than that for the fire wall? If I mount the nut crusher strap like JP said he did then the threaded part of the bolt should be approx 5 inches long?

Garold,

I used 2" long bolts for the firewall and they are more than long enough (see photo). However, I have removed the firewall pad behind the leather cover in the cockpit side of the firewall, and have removed the firewall pad in the engine bay. With that additional padding, I think 2" long bolts should still get you there.

I mounted my fifth belt thru the channel brace as JP did. I used a 5" bolt for that.

My lap belts simply attached to the existing lap belts (which I left in) anchors.

Here are a few pics for ya.

OK, maybe then 50 mm will work. I plan to go thru backpad, sound pad behind the back pad,the fire wall (no sound pad on that side) and have a thick washer (or plate) then double nut it

J P Stein	May 31 2005, 04:04 PM Post #20
Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None	To attach the shoulder straps to the eye bolts, I used them master chain links. Attached thumbnail(s)

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