Quick Release Harness Options?

[Doc76]

I've seen a few videos with the quick release seat harnesses I was hoping for a little info on as we find the traditional latching system rather cumbersome.
Anyone able to provide feedback?

Where to find them?
Options or perhaps best quality ones?

Appreciate the info

Doc

[egchewy79]

Look up cam lock harnesses. They buckle up like a toddler car seat

[Jim1855]

Cam Lock as egchewy mentioned. I have a really hard time with latch-link buckles. Cam lock solves the problem and with many/most you can set which link is the primary. They do cost more but some of the manufacturers will convert their belts or did for me many years ago.
Jim

[42Bfast]

Saferacer and Summit are two sources, among several.
As egchewy79 indicated, cam locks are a significant improvement over the standard buckle.

[edwardb]

I used Schroth Profi II 4 FE ASM belts in my Coupe. 4-points that don't require the anti-submarine belt (described on their website) plus with a pushbutton release. We like them a lot. They are expensive though. Described more here: https://thefactoryfiveforum.com/showthread.php?39507-Schroth-Profi-II-4-FE-ASM-belts

[RoadRacer]

+1 for cam locks. Much more intuitive for passengers

[Jim1855]

Just an FYI for those that don't like the 5th point of a harness.

The 5th/crotch belt does a great job of keeping the lap belts in place. With just 4-points the lap belt can/will ride up to your waist rather than remaining across your hips where it is supposed to be. The flat seat bottom, side bolsters, mounting locations and the general curve of the body all contribute to the lap belt position and getting it tight enough.

During a forward crash the upper body pivots forward leaning into the shoulder belts pulling the lap belts up. By using the 5th belt the lap belts better remain in the proper location. You do not want to experience a crash with the belts across your gut.

The 5th point still isn't going to help with an anti-submarine like a proper 6-point but it's way better than just 4.

With CAM locks it's easy to set the 5th as the primary location then the other 4 just snap in. This is my preferred configuration.

Just my thoughts.

Jim

[csmith]

Just an FYI for those that don't like the 5th point of a harness…

As a heads up, the 4 point belt Paul linked above has anti submarine technology in it. But yes, safety first. There’s absolutely zero reasons to make these cars less safe. :D

[JeffP]

I bought these and have been very happy with them - extremely easy to get in and out of.

https://a.co/d/9EyT5G4

[JohnK]

Just an FYI for those that don't like the 5th point of a harness.

The 5th/crotch belt does a great job of keeping the lap belts in place. With just 4-points the lap belt can/will ride up to your waist rather than remaining across your hips where it is supposed to be. The flat seat bottom, side bolsters, mounting locations and the general curve of the body all contribute to the lap belt position and getting it tight enough.

During a forward crash the upper body pivots forward leaning into the shoulder belts pulling the lap belts up. By using the 5th belt the lap belts better remain in the proper location. You do not want to experience a crash with the belts across your gut.

The 5th point still isn't going to help with an anti-submarine like a proper 6-point but it's way better than just 4.

With CAM locks it's easy to set the 5th as the primary location then the other 4 just snap in. This is my preferred configuration.

Just my thoughts.

Jim

Yes, to all of this. I've broken a rib in a crash in a go kart that only had a 4 point harness. At go kart speeds it sucked. At cobra speeds it would have been catastrophic. I will further add that installing the sub strap so that it wraps around the front of the seat largely defeats the purpose of it. It HAS to come up through a slot in the seat in order to be effective. If you don't want to do that, then please buy the Schroth 4 point harness that Edwardb mentions above. it's the only 4 point harness I'm aware of that has anti-sub capability.

Lastly, I will also mention that many (most?) track day providers (at least in my area) will not allow 4 point harnesses that don't have anti-sub technology, so if tracking is in the cards you'll want to look into the requirements of whatever track day providers you plan to use.

I use the Simpson cam lock harnesses that are a hybrid arrangement. They have 2" shoulder straps in the upper part so they can work with HANS devices, and the lower half of the chest straps is 3" webbing for more support. The cam locks are definitely the way to go.

[BUDFIVE]

Hey y’all, this is a timely thread. I too am researching cam lock 5 point harnesses. I don’t have experience picking harnesses. I intend to use the car for joy rides, road trips, and occasional track or autocross. I will wear the 5-point anytime I drive and require the same of my passengers so safety and comfort are both important to me. I am going to use the FFR low back seats that came with my Roadster. I think I want a 3” lap belt, 2” shoulder belt and 2” anti-submarine belt.
Have any of you seen/heard of Zamp?
213670213671

I didn’t see many others meeting my stated requirements under $250? I welcome feedback on all of the above.

[RoadRacer]

Hey y’all, this is a timely thread. I too am researching cam lock 5 point harnesses. I don’t have experience picking harnesses. I intend to use the car for joy rides, road trips, and occasional track or autocross. I will wear the 5-point anytime I drive and require the same of my passengers so safety and comfort are both important to me. I am going to use the FFR low back seats that came with my Roadster. I think I want a 3” lap belt, 2” shoulder belt and 2” anti-submarine belt.
Have any of you seen/heard of Zamp?
213670213671

I didn’t see many others meeting my stated requirements under $250? I welcome feedback on all of the above.

I bought Jegs which are close to that price

https://www.jegs.com/i/JEGS/555/70091/10002/-1

[canuck1]

I used Schroth Profi II 4 FE ASM belts in my Coupe. 4-points that don't require the anti-submarine belt (described on their website) plus with a pushbutton release. We like them a lot. They are expensive though. Described more here: https://thefactoryfiveforum.com/showthread.php?39507-Schroth-Profi-II-4-FE-ASM-belts

I've looked at these belts before, they do seem like they'd be great. The only thing that makes me hesitate now is that I read in the manufacturer's instructions that I should only use them with "racing seats". It looks like they aren't recommended for traditional roadster seats. I know plenty that have used them but I'd like to understand the apparent limitation first though. Not meaning to hijack, I'm hoping you'll see it as related when it comes to selecting harnesses!

From Scroth's harness operating instructions (pg. 15):


Risk of severe injuries or death. Use only racing seats. Racing harnesses will function properly only when installed in vehicles equipped with seats having a headrest or backrests with seatbelt openings in an integrated headrest. Otherwise the shoulder belts will slide off occupant’s shoulders during an accident. Never modify factory seats to create new slots. The seat structure may be impaired or sharp edges of the seat frame may damage the racing harness webbing.


Sean

[JohnK]

My best guess is that this is warning against trying to use harnesses with OEM seats that don't have slots for harnesses and/or using them with seats that don't have a headrest. The harnesses need a slot to hold them in position so they don't slide off your shoulders. A headrest is needed because in an OEM application a 3-point seatbelt will allow your head and body to pivot forward and be "caught" by the airbag, whereas a harness holds the torso in a fixed position and the head will whiplash. In the case of a roadster with low back seats, the harness slots are close enough to the seat that the harnesses are held in position even though the seat itself doesn't have harness slots. However, the lack of headrest is still a very real safety issue.

From a theoretical maximum safety standpoint, IMO it's a bad idea to use a 4, 5, or 6 point harness unless you also have high back racing seats and are wearing a helmet and HANS device. All of these act together as a system. The video below does a good job explaining the "system" thinking. Unfortunately in the roadster we are missing all the OEM safety features, so a 3-point seat belt is not an option (nor are airbags) and many people (myself included) opt for low back seats. Harness + low back seats - helmet is really not an ideal setup, hence all the warnings from harness manufacturers. Personally, this does not dissuade me from driving the roadster, but it does affect the choices I make in how I drive the car.



https://youtu.be/8ubNZ-4gmsw?si=5ahnDCUFABq1esZo

[TBull]

I use the Cipher cam Locks on my roadster and love them. Just another option for you.

[TTimmy]

I swapped out my coupe's belts with the Schroth Rallye Cross ASM. They are four-point anti-submarine belts that use a pretty conventional buckle. They only have two straps to deal with and that makes my bride very happy.

They were about $280 each.

213702

[BUDFIVE]

Hey y’all, this is a timely thread. I too am researching cam lock 5 point harnesses. I don’t have experience picking harnesses. I intend to use the car for joy rides, road trips, and occasional track or autocross. I will wear the 5-point anytime I drive and require the same of my passengers so safety and comfort are both important to me. I am going to use the FFR low back seats that came with my Roadster. I think I want a 3” lap belt, 2” shoulder belt and 2” anti-submarine belt.
Have any of you seen/heard of Zamp?
213670213671

I didn’t see many others meeting my stated requirements under $250? I welcome feedback on all of the above.

Letting yall know how the Zamp harnesses worked out-I installed them this week with the seats. No drama on lap belt and shoulder belt mounting. The 3” to 2” shoulder belts are less bulky than straight 3” and are comfortable. Zamp recommends the submarine belt comes to the cam lock at about the same angle as your chest which with FFR classic seats requires a pass through hole in the seat bottom which I made. Overall, I’m very happy with the harness setup.
214285214286214287
More install info in my build thread-

https://thefactoryfiveforum.com/showthread.php?47734-BUDFIVE%92s-CenTex-Build-Headlights-Seats-amp-Harnesses-COOL!&p=581948#post581948

[maginter]

I swapped out my coupe's belts with the Schroth Rallye Cross ASM. They are four-point anti-submarine belts that use a pretty conventional buckle. They only have two straps to deal with and that makes my bride very happy.

They were about $280 each.

213702

I have 2 questions please....

1) Are the straps for the shoulders both bolted into the same mount on the Daytona like what we have on the Roadster?

2) Where were you able to pick these up for $280?

Thanks!

[Bob Brandle]

I too have the Schroth Ralley Cross ASM 4-point with anti-submarine technology ana a single central buckle as does TTimmy. (Note, it's Schroth). This harness is similar to Edward B's Schroth Profi II 4 FE ASM belts, but just a step simpler and more occasional passenger friendly.

One MUST have proper dual harness straps pass-thru containment in the top of the seat back.

My application is in a Gen 3 Type-65 Coupe and my car is not intended to be a track racer. I may track the car in a casual track day/driver's school, but, certainly don't plan on any actual racing. If my car was a track racer, then more certainly a full conventional 5-point harness would make more sense.

Here's my setup:

https://thefactoryfiveforum.com/attachment.php?attachmentid=113399&d=1567208522

https://thefactoryfiveforum.com/attachment.php?attachmentid=218993&d=1758137090

[CraigS]

I ran my sub belt over the front of the seat base cushion. This is my reasoning. Sub belts in a lay down seating position like in a formula car do keep one from sliding forward under the belts. But in the upright position of an FFR the lap belt does that function just fine. Like it does in your daily driver. In an FFR what the sub belt does is keep the shoulder belts from pulling the lap belt up. You want the lap belt restraining your body via the hips not via the internal guts in your belly. Do an experiment. Tighten you lap belt but leave the sub belt loose. Now tighten your shoulder belts. Feel what happened to the lap belt? My technique is sit and get all the belts latched. Tighten the lap belts as tight as I can. Tighten the sub belt the same. Tighten the shoulder belts just slightly less than max.

[OB6]

I went with the Schroth Profi II 4 ASM, as a few others have done. They fit well and don't require a submarine belt, which is nice.

Time will tell if I continue to like the red color. :)

https://thefactoryfiveforum.com/attachment.php?attachmentid=215529&d=1750950890

[Tooth]

I used the Corbeau. If you are looking for grey, I have an unused but expired set from Braum. They are in the giant pile of stuff I'm going to sell off / give away when my build is finished.

[TTimmy]

I have 2 questions please....

1) Are the straps for the shoulders both bolted into the same mount on the Daytona like what we have on the Roadster?

2) Where were you able to pick these up for $280?

Thanks!

1. I believe they supply both bolt-in and wrap around options for the shoulder ends. I used the wrap ends on my gen3 coupe

2. I purchased directly from Schroth late last year. I paid full price. They do have discounts on expired and expiring belts - give them a call. The discount might not apply to these belts - not sure if they are dated.

[Doc76]

I used the Corbeau. If you are looking for grey, I have an unused but expired set from Braum. They are in the giant pile of stuff I'm going to sell off / give away when my build is finished.

Did you use the 4-point 2 inch style? (Corbeau #44001B)

[tonywy]

For those who have never been buckled in a seat with a sub belt you need to, because then you will feel / understand the difference. You are planted in the seat and no lap belt ride up. I wouldn't want to crash in on of these cars without it. If you want a really good quality, made to order set of belts check out Crow Safety Gear. They are great people to deal with and understand these cars.