4 or 6 point Harness for the Sparco seat

[bertrand_CX_7]

Howdy,

You said Harness? Ok folks, after 2+ years,
I think it's time for some harness on that sparco seat. Any recommendation on the 4 point vs. 6 point?

Is it a good idea to get a 4 point harness for now, little bit cheaper and later down the road extend it to a 6 point harness?

Also I'll like to hear your recommendation with respect to the brand/quality/durability.

Now the other part that worries is is the harness bar. I know a lot of folks had tried different solution. I'll really like to hear the DO and DON'T.

FYI: the car will be primarily used for track purpose and off course auto-x as here and there.

Many Thanks

[MOCO MS3]

If you are going to run in any NASA or SCCA Track events, you need a 5 or 6 point Harness. I run a 6 point Safe Craft Harness.

[Code Monkey]

6-point or gtfo.

Wait with the purchase until you see my setup + many other at TWS.

[bertrand_CX_7]

@MOCO MS3

Thanks for the first feedback. Also Since I haven't made my mind about the cage, I'm wondering what harness bar solution is available for the speed3 platform. That will be the big headache after getting the harness and I want to be ahead of that game...

Thanks Yall for the inputs

[Code Monkey]

@S-hendrix; is running a bolt-in half-cage from Autopower, you can get one with a harness bar.

[daafisch]

Doesn't the WRX harness bar fit into the car? That might have only been the Gen1 though.

[MOCO MS3]

Check with Autopower, as was mentioned before. I have the 1/2 cage for my speed protégé

[nobrakez]

If you do go with 4 points temporary, Scroth has one that is DOT approved and allows some torso movement in a crash. Double check mounting measurements/locations as well. Last thing you want is to damage your spine because of incorrect install.

[rymanmazda]

Check with cipher auto for a harness bar. I have a harness bar in mine and I run a 4 point since it is just for a local autocross club that is not sanctioned with the scca. I would run a 6 point and not cheap out on harnesses. I would recommend takata if you have alot of money, sparco, schroth or impact racing just to name a few.

[S-hendrix]

The autopower is rock solid and it will stiffen up your chasis alot. The harness bar matches up at a perfect height for the harnesses. I have the 4 point DOT scroths and they are really nice but 6 point is def a better option.

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[Downmented]

Damn, i need a harness bar for the 6.

[rymanmazda]

Originally Posted by Downmented Damn, i need a harness bar for the 6.

This is the one I run: 2002-2006 Mazda 6 Cipher Racing Black Universal Harness Bar 48 [CPA5000HB-BK] - $179.99 : Cipher Auto!, Automotive Parts Accessories & Universal Racing Seats

[Jh8909]

For the 6 you can use a NRG harness bar for the regular 6. Fits right in. Got that setup in mine. I need to upgrade to a 6 point real harness at some point. I am just running the 4 point cipher harness' which are really just glorified seat belts. Still work good enough for local auto-x though.

[rymanmazda]

Originally Posted by Jh8909 For the 6 you can use a NRG harness bar for the regular 6. Fits right in. Got that setup in mine. I need to upgrade to a 6 point real harness at some point. I am just running the 4 point cipher harness' which are really just glorified seat belts. Still work good enough for local auto-x though.

What seats are those? I love them.

[Jh8909]

They are Cipher seats. Bought em used for cheap so I wasn't complaining. Got a set of wedge engineering brackets for the regular 6 and everything bolted right up.

[Code Monkey]

[Jh8909]

Originally Posted by Code Monkey

Yep, not even trying to fuck with that.

[S-hendrix]

Here's a couple pics with the 4pt harnesses. And no I dont let anyone ride in the back. Its just for appearances and noise dampening.



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[phate]

4 points are probably fine for the occasional autocrosser or road racer, but not having that 5th/6th harness sucks (edit: or for someone who is cheap and/or cares about not adding weight...like me). A 4 point can't be tightened like a 5/6 point, because the shoulder belts will pull the lap belts upward off of your hips. The sub belt prevents that from happening.


I put a 4 point in the 6 for this past weekend and that was my first thought. I'm strapped in WAY tighter in the formula car with a 6 point harness. Not to mention the wider straps are a little more comfortable (to me).

[daafisch]

Originally Posted by phate 4 points are probably fine for the occasional autocrosser or road racer, but not having that 5th/6th harness sucks (edit: or for someone who is cheap and/or cares about not adding weight...like me). A 4 point can't be tightened like a 5/6 point, because the shoulder belts will pull the lap belts upward off of your hips. The sub belt prevents that from happening. I put a 4 point in the 6 for this past weekend and that was my first thought. I'm strapped in WAY tighter in the formula car with a 6 point harness. Not to mention the wider straps are a little more comfortable (to me).

I've noticed the same thing with the lapbelt pulling upwards. Still better than the oem 3 point though.

[phate]

Originally Posted by daafisch I've noticed the same thing with the lapbelt pulling upwards. Still better than the oem 3 point though.

Worlds better than OEM, yes. The 6 has wider seats than the 3, so we really needed something better to hold us in place. I'm using the Schroth Rallye Cross belt that I was loaned. More than likely, I'll buy one this winter. I'm thinking the Rallye 4, since it's slightly safer in the case of a wreck and they have the quick disconnect.

[S-hendrix]

I agree with phate. The tighter the 4point gets the more it climbs up your body. Im guessing the theory behind the scroth rally safe 4 point is that the extra sewn area near the buckle will give away llpwimg your weight to transfer forward over the lap belt which will prevent submarining. I like that it is DOT approved so if a cop wants to harass you over it at least you can show him that it's legal.

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[phate]

We've only used the harness for autocross. We just tuck it behind the seat for normal driving. Probably what I'll do even if I get the DOT approved belt. I really don't like the idea of using one on the street.

[daafisch]

That's exactly what I do with my Rallye 4. Disconnect it, the back goes under the rear seat and the rest under the front seat. It is DOT certified but there is no reason to use it on the street.

[S-hendrix]

I use mine on the street granted my work commute is 3 blocks (so I usually ride my ruckus) and I put like 3000-4000 miles on my car a year.

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[bertrand_CX_7]

Sorry guys been a little busy here @work...

Nice harness bar BTW @S-hendrix. Could you share more pics of the harness bar where it's attached to the chassis?

1) - Where did you get it from?
2) - who is the manifacturer?
3) - How does it attach to the chassis where the rear passenger put their feeds and in the trunc?

Looking good and clean.....

Originally Posted by S-hendrix Sent from my SCH-I605 using Tapatalk

[S-hendrix]

Its the Autopower roll race bar. It's a bolt in half cage. It has another cross bar that goes diagonal across the hoop. I need to paint it since I recieved it seperately. The company is pretty awesome because the cross bar I recieved was smashed by a forklift (somehow.. this metal is heavy as hell) during shipping. I signed for it without inspecting like a moron. I called Autopower and he said mail back the damaged bar and he would make me a new one. The only reason I had to mail it back was so he could lineup the holes from the other bar. I recieved it a week and a half later and fitment was perfect.

Install was kinda tough. Def a 2 man job. To attach it you drill holes in the floorboard and use the provided sandwich plate to snug up the bolts. You have to cut the plastics a little. The floorboard in the backseat is the same way. It was pretty straightforward because once you get it in everything lines right up. It mounts pretty much only one way and there is very little room for error.
I bought this setup off of vivid racing and they took like $75 off the price if you call them and ask them to do better on the price. Freight was like $150 if I remember correctly.


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[grantmm]

If you're ever going to drive on the street, uninstall the harness bar and 4-point (shudder) and use your stock belt. The damage that can be caused to your neck/back with a harness bar and no cage in an accident is terrifying. The top will cave in on you and you have nowhere to go like you would with a regular (folding) seat. I'm sure you've read up on all of this, but to re-emphasize for anybody considering this... harness bar + no rollover cage + harness + street driving (track accidents apply too) = a SERIOUS no go.


Also, 4-point is very dangerous in its own right. Always save up for the 5/6 point to eliminate the risk of sliding under the lap belt in case of an accident resulting in the sudden reduction of motion.

[Downmented]

@phate; What harness bar are you using in the 6?

[phate]

No harness bar - they weigh too much! I have the harness attached to the rear seatbelt mount bolts. The schroth harnesses are designed to work with these so you don't need a bar. Also why I would never run these on the street. The chances of me wrecking at autocross are really slim, so I'm not too worried about it.

[Code Monkey]

Originally Posted by phate No harness bar - they weigh too much! I have the harness attached to the rear seatbelt mount bolts. The schroth harnesses are designed to work with these so you don't need a bar. Also why I would never run these on the street. The chances of me wrecking at autocross are really slim, so I'm not too worried about it.

Last weekend at the local autocross a GTR went on fire (broke oil or fuel line) and a C5 on the side practice course went off into the trees, just saying shit can happen.

Not to be outdone, a Corvette went into a wall at the TWS road course....

[phate]

Definitely can, but not likely. We have a HUGE concrete pad that we autocross on, and one side is connected to a grassy area. There's a small dirt step into the grass that 99% of the time doesn't matter one bit. A focus got loose and went sideways into it and nailed it almost exactly sideways to where both tires hit the dirt at the same time and they rolled it, hahahaha. Everyone was fine. They rolled it back over, swapped on a spare or two, and drove away in it.

[daafisch]

One of the local guys flipped his old Mazda 3. He had V710's on and a big RSB on the stock suspension. There was a kink in a high speed straight and when he turned in, the front dove and the back didn't slide...

[ouchmonkey]

Originally Posted by Code Monkey

Wow. Thats pretty.

[Code Monkey]

Originally Posted by ouchmonkey Wow. Thats pretty.

You're quite pretty yourself, stud.

[23TDuratecMerkur]

Originally Posted by rymanmazda What seats are those? I love them.

How did you mount the harness bar. When I attempted to install mine I noticed that the passenger side seatbelt bolt was no on the B pillar, but on the seat rail.