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Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

Looking at the Summit Racing store, found a lot of 5-point harnesses with a very affordable price. But I've never seen this style of latch before.

Is it secure enough in case of impact?
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WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

i always wondered what happens to your balls in case you have a frontal impact wearing these things.

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Supercharger and EFI kits
https://www.the924.com

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

The latch is placed a little higher then the balls.=)
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/

924RACR · Posted: Tue Apr 14, 2009 9:43 pm Post subject:

LOL!

Yes, they're safe - those are US military-spec buckles. Talking with one of the professors at the Wayne State crash lab (where they developed the HANS, among others), he pointed out that if you ever wear that buckle out, you should stop racing/crashing - your body will wear out first!

Camlocks, OTOH, will bend the pins and eventually fail after too many impacts - that's why they use the latch style in the crash lab, and why they also won't reweb camlocks more than once usually.

I've been using this style (latch-n-link) for 9 years now, since I started racing. I've crashed a number of times, most recently last November - never any issues.

That said, I'm going to be switching over to camlocks (from the same supplier, RJS Racing here in Michigan); the buckle on the latch is very large, relatively speaking, and as my wife is getting behind the wheel more than me now, the latch digs into her thighs quite a bit, and is very uncomfortable. A camlock buckle will take up less space and be more comfortable.

One more note - get a 6-point, not a 5-point (has 2 sub straps instead of one). They're safer and also easier to install, because they a) do a better job of restraining the pelvis, and b) can be bolted in at the same points as the lap belts, right at the stock 3-pt seatbelt attachment points either side of the seat.

Hope that helps...
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

Thanks, Vaughan! That's what I really needed.
Here in Russia only OEM-style and camlock are common, so I have no experience with this style of latch.
Unfortunately, these latch-n-link harnesses are not homologated to club rally.=(
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/

Fifty50Plus · Posted: Tue Apr 14, 2009 11:56 pm Post subject:

Vaughan is right - the latch type is as safe as the cam-lock belts. However, they are more of a pain to buckle up. You must put all the harness parts together before you crank the buckle over. Cam Locks can be done one belt at a time.
I did have a latch type failure many years ago. I was running an open cockpit car and was required to also wear arm restraints to prevent roll bar amputation. Arm restraints are short straps that loop around your elbows and attach to the belt system preventing you from raising your arms over your helmet. Somehow, I managed to hook one of the restraints under the latching lever and popped it loose just as I was braking heavily for a turn. With almost 2 Gs of deceleration, my body raised out of the seat and I flailed around hanging onto the steering wheel. Luckily no damage except to my nomex underwear.
Chuck

fiat22turbo · Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR

They should carry FIA specifications, which is what most sanctioning bodies recognize and require.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

924RACR · Posted: Wed Apr 15, 2009 2:11 am Post subject:

I'm not surprised that most of the cheaper ones in the US are only SFI certified, it's a US thing... naturally you'd have to get an FIA approved system.

Check out RacerWholesale.com - they often have FIA-approved camlocks cheaper than anywhere else, though no idea on shipping!

_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

FIA approvement is not necessary for me, because my 931 is daily driver. It's also driven at rally-sprints (something like US auto-X) sometimes, but homologation is not obligatory there. And sometimes it's a safety car, but there is no need in FIA approvement for pacecar.
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/

Nobbi · Joined: 24 Aug 2006 Posts: 1396 Location: Germany

Shurick take a look at www.rennsportshop.com
You will find a harness,6-way,with fia approval for 98.-euros......

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NA 924 - april/1977- 4-speed-audi gearbox.
500.000 km with fun.....and new toy:Porsche 944 S2 Cabriolet.Other car Daimler c-class cabby,brandnew..Plus : DEUTZ 4005 tractor Built 1967

Shurick · Joined: 15 May 2005 Posts: 524 Location: Russia, Moscow.

Wow!=) I like it!=)
_________________
WBR, Shurick
'79 931 -- intercooled K26-3060-6.10 turbo @ 1.2 bar, EFI+EDIS, 951S brakes, stripped interior, 951 look.
'86 924S -- R.I.P.
https://www.instagram.com/ru_pacecar/