Seat Harness mounting, following on from 'Race Seats!' thread.. Options

[raz128]

Anyone want to clear this up for me?
I've got a 4point harness on my driver seat and a 3point harness on my passenger seat
When I bought the 3-point harness. The instruction booklet said to mount the tail strap of the harness between 0-45 degrees paralell to the ground which i did on the passenger side.
After doing some research to see if i could confirm it, the Schroth harnesses said the same thing

However i did come across this:
http://www.gforce.com/pdf/harnessinstall.pdf
for those too lazy to read it (or cant run pdf files) it says it's best to mount the tail strap -5 to +30degrees from a horizontal line to shoulder height.

Which is best mount to use? The lower point under the original rear seats or on the C-pillar?
The mounting point on the C-pillar would be within -5 to +30degrees that the pdf file states. but does it satisfy the 0 to +45degree instructions by OMP and Scroth?





This post has been edited by raz128: Jan 30, 2007 - 10:18 AM

[playr158]

wow funny you say that....

SCROTH in their OWN manual shows THIS

· Shoulder belts must run from the shoulders horizontally or down, at no more than a 20° angle.
In cases where the shoulder belts must be routed down to the chassis floor, support by a roll cage bar or harness guide at the appropriate height is essential to establish the horizontal shoulder strap routing off the shoulder/HANS®. Most racing seats are not designed and tested to carry shoulder belt crash loads from downward installation. Severe injury or death could result.
For the best restraint of the occupant’s upper torso, ideal anchor points should not be further back than 200 mm [8”] from back of user’s seat.

In the event that the anchor points are further towards the rear of the vehicle [e.g. using a roll cage bar for wrap around attachment] the distance between the strap anchor points will narrow or even cross over as described in following graphs and tables.

only 20* which is less then HALF of your claims? His belt set up MIGHT MIGHT MIGHT be ok provided a ROLL CAGE or a Harness bar post seat...which there is neither...
and i can pretty much guarentee if you take a protractor to RAZ's seats they fall outside those formentioned limits

this all coming from "your source"
http://www.schroth.com/installation-instru...s/en/index.html

This post has been edited by playr158: Jan 30, 2007 - 9:04 PM