When mounting the sub straps on a six point harness, where do they mount to the floor? Can they go froward to the stock seat mounting bolts if using a factory seat (say, oh I don't know, in a Miata)?
Or do they need to pass through the hole in a race seat and mount to the floor?
they actually have to go straight down and slightly back. The Schrothracing.com website has a good mounting guide.
Per
Woody wrote: Can they go froward...
There has to be a picture laying around of Mike Guido in a Fro wearing a set of belts.
On this note, what is the best way to mount sub belts for a car that will be used by multiple people? Do sliding frames for race seats come with mounting points on the frame that will move with the seat?
(For example, I'm 5'10" and my girlfriend is 5'5".)
Salanis wrote: On this note, what is the best way to mount sub belts for a car that will be used by multiple people? Do sliding frames for race seats come with mounting points on the frame that will move with the seat? (For example, I'm 5'10" and my girlfriend is 5'5".)
We'll need a photo of your girlfriend in order to answer that question.
Typically, no, you shouldn't mount the sub to the seat frame. You should mount it to the floor with the proper backing plate. What people wind up doing is mounting the sub belt so that it's far enough back for all drivers and leave it at that.
http://www.schrothracing.com/docs/Competition_Instructions.pdf
Looking over these instructions, they're saying to go 0-20 degrees forward for a 5-point (single sub) and 0-20-percent back for a 6-point. That's mostly a junk-preservation thing on the 5-point, IIRC. Go with a six-point and try to get the 20 degree angle back from a vertical downward line from the camlock.
Per Schroeder wrote: Looking over these instructions, they're saying to go 0-20 degrees forward for a 5-point (single sub) and 0-20-percent back for a 6-point. That's mostly a junk-preservation thing on the 5-point, IIRC. Go with a six-point and try to get the 20 degree angle back from a vertical downward line from the camlock.
But if it's 20 back for me, that angle will change based on where other drivers adjust the seat. Would >20 cause a hazard for someone shorter than me?
Woody wrote: We'll need a photo of your girlfriend in order to answer that question.
It should be 20 deg back for the person with the shortest legs (ie. seat far enough forward for them to operate the pedals) and no greater than 0 deg back for the person with the longest legs. If you have to go outside that range, you need to check with the manufacturer before exceeding the published parameters.
We used 5 point belts in the Lemons car and one of my drivers was, well, girthy. So we mounted two sub straps: a red one for all of us normal folk and a blue one for him.
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