krystar

i'm installing 6pt harnesses and i'm not sure how the install the sub belt. i've already got the location and it's underneath the sub hole on the seat, rearwards 1" .

the problem is..how do i secure the sub belt?? i have a flat bracket with a hole. instructions say NOT to bolt the bracket FLAT against the floor, where the force is going to bend the bracket.


so how the hell do u secure this??

krystar

ok....i guess nobody knows. i'm ordering snap in bracket and eye bolts then.

VaSteve

Don't drill though the big plastic plug on the floor.

Search my username c. 2006 for photos of how I did it in mine.

krystar

this thread right?
https://rennlist.com/forums/racing-a...a-944-how.html

so basically is that the "parachute harness" method that i've been reading about? because i read in some threads that PCA doesn't allow this anymore...

krystar

i'm waiting to see of john hajny has anything to say about my idea using angle iron.

putting 3/4" angle iron in inverted V on the floor pan and having eyebolt screw into a capture nut on underneath of the angle iron. welded to trans tunnel and door sills and any floorboard in between. it should provide the sheer angle mount that john has posted about. rather than a tension pull force.

Potomac-Greg

That would definitely be optimum, and superior to 99% of the sub-belt mounts I've seen. Even the Porsche factory stuff is dubious.

I ignored a racing shop's recommendation to use "big washers" and went with 10"x10" steel plates acting as mega-washers. I suppose in the extreme case, the entire floor could collapse as a result of the pulling force on the plate. You gotta keep things in perspective. I'm more likely to roll the car on the street than on track, and I'm wearing 22 year old 3 point crap on the street!

krystar

well until i read john's posts, i was going to do the thing that everyone does. eyebolt with 4" square backing plate sandwich to the floorboard.

i don't have 3pt's on this car so the harnesses is all i got, street or track. i was previously using schrothe 4pt's with the asm loop. but at the last PCA DE, they said they'd let me slide just this once with that setup.

Potomac-Greg

Yes, that would be a waste of time. You can poke holes in it using a Bic pen.

krystar

lol. def avoided plug areas.

wth do they put those in for anyway? it's not like the car goes wading thru rivers.

nkgosselin

I used a pre bent sub bracket.

http://www.pegasusautoracing.com/pro...p?Product=2388

Passed my NASA and PCA tech.

Potomac-Greg

Emergency foot braking?

That's an excellent question. Why have a plastic plug?

krystar

did u use the backing plate sandwich mounting for the bracket bolt?

nkgosselin

I used big washers that I doubled up.

VaSteve

That's how they drained the galvanizing when the dip them at the factory.

There's another thread where I posted (might not have started it with photos of the subs through the floor).

I had this one handy...

krystar

well here's what i'm doing.

1" angle iron. 2 holes on angle iron, 4" apart. drilled for M8. weld capture nut on underside of angle iron.


inverted V on the floorpan. triangle hole on trans tunnel. triangle hole on door sill.