Harness with Stock Seat
 

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Only real option I know of is to put in at least a 4 point cage. No authority on cages and I am honestly not that educated on them but it is one of my next upgrades. There are post market companies that sell "harness bars" or "Harness mounts" be wary, and be careful how they are installed. Some person died when this car first came out because they attached their harness to bar right behind the driver seat(which is completely inadequate for harness mounting).

There is no OEM location appropriate for mounting a harness.

There is no reason that I know of to buy a 3 point harness. Your OEM airbag and regular 3 point seat belt are fine. Either go to a full 5 point seat/harness/rollbar or just stay OEM. If you are looking for a true harness and seat solution, you live right next to the best Nissan performance shop in SoCal, contact Mike at Corner 3 Garage in Laguna Hills.

Edit: 4 point harnesses are generally frowned upon. A 5 point will keep you from breaking your legs on impact, a 4 point might not. Maybe a 4 point is OK for autoX where there are not walls to run into generally and front impact is not likely. But with a 4 point your butt can still slide forward(which is attached to your legs) and if they bump into the engine block crashing through your front dash, then the engine will win.

I had the same question a while back. In the end I decided to keep my cg-lock. It holds you into the seat pretty well.

No harness unless you have a full cage.

No insurance if you have a full cage.

2c

Yep. My CG-Lock works great.

I've had good luck with moving my seat back, pulling the belt hard to lock it, and then moving the seat forward. I have the powered touring seats though and I suspect this wouldn't work as well with manual seats.

DR I do the same thing, with airbag, I figure what is the point of a 3 or 4 point harness.

@OP. Some of the post market "plugNPlay" bars might suit your needs, I think it probably depends more on the install. But still I am not sure that going to a 3 point harness is worth the money, I am open to feedback from anyone, but just can't see it working any better than what DR suggested by moving your seat far back, lock the belt, then slide the seat forward. If you do that, it will be just as good as a 3 point and a bar imo. Give it a try first I would say, it might save you a couple hundred bucks!

And yeah Dr, the power seats are good for that! WO them you would need to have a buddy help you push the seat forward most likely.

At tip for the CG-lock is to grab some skate board tape. Put a little but on the clamps and it will make sure it dosent fall off. I found that before doing this I would knock the lock off when getting in and out of the car during autox.

In the hatch there is a baby seat anchor bolt on the drivers side for JDM babies :) I personally wouldn't use one of those 3 point belts in a modern car with air bags.

I did, and I have been exploring harness/safety options myself. The ASM sounds a bit gimmicky honestly. I would do some research on it. Again I can't see how this beats just the OEM belt and airbag. Not sure it's an upgrade. I might be wrong, but I just see no real advantage in spending money on a 3 point. If there is one, tell me what it is.

After talking to lots of people, after 2 month ago my father putting his GT3 into a wall at summit point, a fellow POC club member ending up hospitalized(he had 5 point and full cage) at Big Willow, and almost getting t-boned 2 weeks ago at Buttonwillow myself, I have decided that I am not even going to mess around with intermediary upgrades such as 3-4 points, bolt in roll bar etc.

Granted it's expensive, but I am getting to a point skill and time wise where I need to get some real safety gear. I don't do AutoX , and I can definitely understand why the requirements there are not as stringent. It's pretty unlikely to hit a wall or another car , and I am sure that 100MPH+ is not that common. So my needs probably don't align with your needs exactly, but I don't want you to waste your money either :tiphat:

While you are looking, check out Sabelt's products as well. nice looking stuff.

Sabelt - Home

I hadn't seen the CG-Lock so thanks for posting about it! I just ordered one and look forward to trying it.

I'm with you on that I would love something that would hold my torso in place too. That device you found looks kinda uncomfortable though, but maybe its not. I need to see a pic of what it looks like when buckled up.

It would be cool if there was a way to make the seat belt tensioner lock on demand and stay that way until you release it. That I would happily buy for 20 bucks.

Did you get the strap? Using it? If so, like it?

I've been using the torso strap for 10 years. I keep it in my helmet bag. Best $20 you can spend.

G-FORCE Autocross Torso Harness - Free Shipping on All Orders @ JEGS

Your totally safe options, in order of investment:

1. Stock
2. CG Lock
3. Seats, Harness Bar, Harnesses with ASM
4. Seats, 4+ point rollbar with a diagonal, 5/6 pt harnesses, helmet, HANS

Safety is a system. And the stock seats are not designed for use with harnesses.

Actual safety requirements for Autocross are generally much less. So you can get away with knockoff harnesses wrapped on the stock cross brace just to plant you in the seat. Not that I would suggest it.

Would you happen to have a photo of it in use?


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I've used the GC Lock for my last two track events and I love it!


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Thanks for the info, I just ordered one to test at Sebring in two weeks.


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Do not use this on track.

Unless you enjoy broken ribs or have a deathwish.

Actually found it in the SCCA solo trials rules.

http://scca.cdn.racersites.com/prod/...R%20April1.pdf

Page 240 X. VEHICLE SAFETY EQUIPMENT REQUIREMENTS

"Street, Street Touring®, and Street Prepared category vehicles not
equipped with a roll bar or a roll cage may not use an upper body
restraint system other than the factory system."

how did you like it?

It's allowed for solo autox. But I totally agree with you on track use - DO NOT USE it. Use stock seatbelt system. Autox is low risk event and I have barely even seen wheel lift on 370Zs as it's a heavy car.

What's the street class "harness" rule? - SCCAForums.com - SCCA

That rulebook looks like General SCCA rulebook. Scca solo rulebook is this one: http://scca.cdn.racersites.com/prod/...ne_reduced.pdf page 75

I disagree 100%

How does that work with airbags? Did you remove them?

see 3.3.1 on page 34.

The standard seat belt does not hold you in place maybe if your less than 180 but it doesn't for.I don't what kind of corners your taking that still keep you in place but it does not hold me in place I still find myself counter steering too much since I still need to hold myself in place with the steering wheel the aftermarket seat belts would be a benefit for those who don't want to waste all that money on seats and just need a cheap solution that still makes results so Cg lock isn't a bad solution at all but it won't look as cool as real harness !

MA Motorsport Harness bar and Schroth 5-point belts
 

Check this group out.

MA-Motorsports 370Z Harness bar. Link

Not too tough on the install and mounts to B pillar and rear studs in the hatch area.

Schroth 5 point Belts. Link

You can add single or dual sub-straps to these.

I use the Profi II ASM FE with a single strap. Works great.

Just my 2 cents worth

MA-Motorsports 370Z Harness bar. link.

PAGE NOT FOUND. :icon14:

Agreed, but here is how to get there instead.

1. go to MA Motorsports | Products

2. Under "Featured Products", center screen, second row is the Harness Bar for the 370Z. Click the image other than where it say 'add to cart' and it takes you to the info page for the Harness Bar.

Hope this helps.

Not sure why they tuned their page to fail on the link I posted, but when you get to that page, the link will be at the top just as posted. Silly in my opinion but I do like their products.

Even cheaper solution is to move your seat back as far as you can, yank hard and quickly on the seatbelt (locking it), then push your seat up until it's tight.

I have done this for every track event. Stock betlts, stock seats, HPDE 2/almost 3.

old post but i wanna sub for later. good info here