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installing racing harnesses

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Old Oct 30, 2006 | 02:41 PM
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Default installing racing harnesses

so im putting in racing harnesses from hopupracing.com into my 300zx. and in just wondering, what are some ways you guys put in harnesses in the 350? i know that the shoulder support has to be at or above shoulder level... what did you guys do for this? does it require extensive fabrication for a bar? or are there any available prefabricated bars out there that just simply bolt onto the floor and side walls? thanks for anybody's help!
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Old Oct 30, 2006 | 02:44 PM
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It will depend on how the harnesses that you bought mount to the vehicle.
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Old Oct 30, 2006 | 02:52 PM
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Originally Posted by itsjoshufocker
so im putting in racing harnesses from hopupracing.com into my 300zx. and in just wondering, what are some ways you guys put in harnesses in the 350? i know that the shoulder support has to be at or above shoulder level... what did you guys do for this? does it require extensive fabrication for a bar? or are there any available prefabricated bars out there that just simply bolt onto the floor and side walls? thanks for anybody's help!
my old set up ...



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Old Oct 30, 2006 | 02:53 PM
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BTW, NEVER use harnesses without a cage.
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Old Oct 30, 2006 | 02:54 PM
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Originally Posted by THE TECH
BTW, NEVER use harnesses without a cage.
thats true if you are racing...
but for street set up... you are not pulling enough latteral forces in the corners to flip the car... (well unless you are seriously pushing it and suicidal)
a lot of the people with harness are doing it for show..
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Old Oct 30, 2006 | 03:07 PM
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ive seen custom work where the harness is attached to the rear strut bar.

*for 350zs, forgot that you were talking about 300ZX

Last edited by josephchihweilu; Oct 30, 2006 at 03:08 PM. Reason: forgot original post
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Old Oct 30, 2006 | 04:02 PM
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Vamos_Rafael did you just weld a bar into your side walls? thats what im thinking of doing too.. but just want to make sure that theres nothing easier than that to do..
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Old Oct 30, 2006 | 04:10 PM
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Originally Posted by Vamos_Rafael
thats true if you are racing...
but for street set up... you are not pulling enough latteral forces in the corners to flip the car... (well unless you are seriously pushing it and suicidal)
a lot of the people with harness are doing it for show..
Are you willing to bet your life on it? That's the real question. Yes, people will continue to do idiotic things no matter what, but some things just aren't worth it.
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Old Oct 30, 2006 | 08:13 PM
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Originally Posted by THE TECH
BTW, NEVER use harnesses without a cage.

Then why do legit racing companies sell harness bars?
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Old Oct 31, 2006 | 05:42 AM
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Originally Posted by Vash350Z
Then why do legit racing companies sell harness bars?
Just because someone sells a product, doesn't mean you shouldn't use your head before buying it.
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Old Oct 31, 2006 | 09:21 AM
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Originally Posted by THE TECH
Just because someone sells a product, doesn't mean you shouldn't use your head before buying it.
Well maybe you could explain why you shouldn't use a harness without a full cage?

Personally, I don't see what's wrong as long as the mounting point for the shoulder bar is at the correct angle from shoulders. Please enlighten us.

-Acree
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Old Oct 31, 2006 | 09:50 AM
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Originally Posted by Acree
Well maybe you could explain why you shouldn't use a harness without a full cage?

Personally, I don't see what's wrong as long as the mounting point for the shoulder bar is at the correct angle from shoulders. Please enlighten us.

-Acree
The main reason that you don't use harnesses without a cage is that if the car were to turn over, you would be crushed because you would not be able to move out of the way. With the stock 3 point belts, you would still be able to move your shoulders and head. A cage makes sure that the roof of the car cannot be crushed and therefore come down on your head.
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Old Oct 31, 2006 | 12:10 PM
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I see what your are saying. Basically, with how many four point harnesses are you only have neck movement as compared to 3-point stock which allows for more body movement also and is designed for more forward restraint than side-to-side.
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Old Oct 31, 2006 | 02:10 PM
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it works both ways, you should never run a cage in a street car, unless you wear a helmet all the time.
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Old Oct 31, 2006 | 04:07 PM
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Originally Posted by jakesford
it works both ways, you should never run a cage in a street car, unless you wear a helmet all the time.
+1
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Old Oct 31, 2006 | 04:17 PM
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Originally Posted by Vamos_Rafael
my old set up ...



I have the same bar now in my car.
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Old Oct 31, 2006 | 04:21 PM
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Originally Posted by Quamen
I see what your are saying. Basically, with how many four point harnesses are you only have neck movement as compared to 3-point stock which allows for more body movement also and is designed for more forward restraint than side-to-side.
4-point harnesses are also a no-no...they're no longer legal for racing organizations. The main reason is that under high decelleration (front impact crashes), a persons body can attempt to slip forward (under the belts) and crushes the internal organs, causing severe damage! Use 5 or 6 point harnesses.

Also, Harnesses aren't street legal (at least in Cali).

-Peter
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Old Oct 31, 2006 | 07:08 PM
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Originally Posted by Nitrouz
I have the same bar now in my car.

Who makes that bar i want it.
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Old Nov 3, 2006 | 09:43 PM
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Originally Posted by three_fitty
Who makes that bar i want it.
BUMP
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