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Author Topic: How to remove factory shoulder harness tower?
Reggie Verified Driver
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Region: Delta
Car #: 77
Year : 1990
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My car is overweight and I need to remove the shoulder harness towers for the shoulder harness seat belt retractors just behind the seat(s). I couldn't find it on the search mode. Also, how much do these two supports weight? Thanks.

cam Verified Driver
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Do not think that is legal. There was a big stink about this several years ago and the ruling was not legal to remove. Back to the mantra of, if the GCR does not say you can, then you can not. If it is now legal or you just don't care, cut-off wheel or Saws-all should work.

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"The problem with Socialism is that you eventually run out of other people's money."
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"A government big enough to give you everything you want, is strong enough to take everything you have."
~Thomas Jefferson

Steven Holloway Verified Driver Made Donation to Website
Blue Eyes, Aquarius, hates being squeezed to the grass in SowDiv!

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Car #: 97
Year : 91
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Yeah, gotta keep those...

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If you can't fix it with a hammer, it's got electrical problems.

TillerTech
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Year : 89
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plasma cutter works very well.........
just not legal in SM, btw, only about #6 per side.
How much over weight is your ride?

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Miata Race glass and CF from Legacy Molds. 4 1/2# CF Hood
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Reggie Verified Driver
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Year : 1990
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Thanks guys. I think I'm about 25 lbs over, but when I return home from Florida I'm going to scale it again to find out exactly how much she needs to lose. Harness towers will stay. I guess the cars I saw without them were ITA or some other class.

Howard
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On the topic of cutting parts off the car -
I'm going the halo seat route and removing the driver side vent window for better egress from the car. With the vent window gone I am left with the front support (which is part of the door). The GCR reads:
"To improve driver exit through the window area, the driver vent window and vent window supporting frame may be removed as a pair"

Does anyone know if the front window support is considered part of the supporting frame? Can it be removed?

Howard

wheel Verified Driver Made Donation to Website
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The front piece is part of the window supporting frame, and may be removed.

wheel

oem steve
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Are you only allowed to remove the vent window if the cage goes into the door?

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Kyle Burkhardt
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No. You can remove it on the driver side only under the guise of safer egress.

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Kyle Burkhardt
NASA Midwest
#12 SM

Johnny D Verified Driver Made Donation to Website
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quote:
Originally posted by Reggie:
Thanks guys. I think I'm about 25 lbs over, but when I return home from Florida I'm going to scale it again to find out exactly how much she needs to lose. Harness towers will stay. I guess the cars I saw without them were ITA or some other class.

Interesting, the more he takes off the heavier he gets. 1st 16 lbs now 25 lbs [scratchchin]

http://forum.specmiata.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=2;t=004994;p=0
J~

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d mathias Verified Driver Made Donation to Website
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Probably using Mid-Ohio's scales.

Motor City Hamilton
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16lbs is 0.7% of total car weight at 2285. Sounds like alot of fretting over very, very little affect on total performance. 16lbs over with 1 gallon of fuel sounds like a really nice cusion considering the innacuracy of some of the scales around. Mid Ohio's grain scales especially.

wheel Verified Driver Made Donation to Website
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MCH,
I agree. I wouldn't feel comfortable with much less than that, as a cushion.
wheel

Keith in WA Verified Driver Made Donation to Website
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+1 If I come in just under 10# over, I hit my target.

I remeber borrowing a friends car and asking, "How much does it weigh?" Answer: "Way too much." Works for me. I knew I wouldn't be coming in light and unless you're at the very pointy end and trying to maximize everything, in every way possible, a poorly timed fart will make more difference to a lap time than a tiny bit of extra weight IMHO.

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Keith Novak
(Will work for tires)

Motor City Hamilton
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On my set of scales at home, my car weights 25lbs over with 1 gallon of fuel. I have 50lbs bolted to the floor next to me. At Mid-Ohio, some weekends I need to come back with two gallons, some one gallons. At Nelson, I'm pretty close to 25 over. At Gingerman it was closer to 10lbs over. At Grattan, close to 20 lbs over.

My point is that my home scale is just for reference and the scale at that track IS the rule.

pat slattery Verified Driver Made Donation to Website
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he needs 16 to get to 2285, but the weight is now 2275
Pat

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D.B. Cutler Verified Driver Made Donation to Website
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You want to get the car to minimum or lower. If you can get lower than you can add the weight back in as either ballast or fuel.

Reggie Verified Driver
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Pat is right on target. Ten lbs has been taken off the minimum, hence "about 25lbs" needs to be removed to reach minimum. From there I can add weight in Right Rear of car as needed.

Johnny D Verified Driver Made Donation to Website
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quote:
Originally posted by Reggie:
Pat is right on target. Ten lbs has been taken off the minimum, hence "about 25lbs" needs to be removed to reach minimum. From there I can add weight in Right Rear of car as needed.

Interesting...
i. If ballast is required to meet the required weight it shall be
added as follows:
1. All ballast shall be securely mounted on the passenger
floor.

Right rear, Battery, muffler?
J~

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Reggie Verified Driver
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Car #: 77
Year : 1990
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Okay, right passenger floor works for me. [Smile]

Funracer Verified Driver Made Donation to Website
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quote:
Originally posted by Johnny D:
quote:
Originally posted by Reggie:
Pat is right on target. Ten lbs has been taken off the minimum, hence "about 25lbs" needs to be removed to reach minimum. From there I can add weight in Right Rear of car as needed.

Interesting...
i. If ballast is required to meet the required weight it shall be
added as follows:
1. All ballast shall be securely mounted on the passenger
floor.

Right rear, Battery, muffler?
J~

Man, you can't get away with anything around here [Big Grin]

   

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