5 Point Seat Harness

[atomichead]

Anyone have experience installing a 4 or 5-point seat belt in their car? If so, what components and technique did you use?

[ar38070]

Shoulder belts wraparound style around the roll bar.

Lap belt bolt in or snap in style. Either eyebolts (outside threaded into the stock belt location and the inside in a hole drilled throught the tunnel) or use the Brey-Kraus (www.bkauto.com part #9001 and 9003) mounts.

Anti-sub belt: Stock seat use 6 point style attached to the same points as the lap belt. Race seat either a 6 point style attached to the same points as the lap belt or a 5 point style bolted to the floor.

[adsach]

Using the stock seats, I run a two strap anti-sub belt side-to-side around the base of the seat. I tried having the sub belt come around the front of the seat, and I tried sitting on the sub belts with my thighs, but wrapping around the seat with the correct amount of slack seems to offer the best pull-down performance.

This is an imperfect solution and requires frequent inspection to make sure the belt is not getting cut or chaffed. It is also time consuming to properly adjust upon install.

IMHO, you really need an aftermarket racing seat for optimum harness fit and protection.

IMHO 4-point sucks compared to 5/6-point. You just can't keep the lap belt low and the shoulder belts tight without a sub-belt.