C7 harness (4 or 5 pt) w/o bar?
#1
Instructor
Thread Starter
C7 harness (4 or 5 pt) w/o bar?
I saw this cool 4 pt harness setup on a BMW M3 this last weekend where he didn't need a bar, the backs used the rear seat belt buckles and he was able to just unclip everything and put them away to use the stock 3 pt for the drive home.
Is there anything like that out there for the c7 with comp seats? I don't want to lose the factory 3pt for just around town cruising - the wife will not go for a harness! But I'd like something better than the 3pt for future HPDE so I can get a HANS (yes I know there's a 3pt HANS, but I like the feeling of being held tighter in the seat by a 4 pt system.
Also - does a 5pt require a cut in the seat for the bottom center strap?
Let me ask this another way - without modifications to the car other than perhaps some plates where there are already attachments for buckles and stuff - is there a harness for the c7 that will get me where I want to be - no bar, no drilling holes, no slashing seats?
Is there anything like that out there for the c7 with comp seats? I don't want to lose the factory 3pt for just around town cruising - the wife will not go for a harness! But I'd like something better than the 3pt for future HPDE so I can get a HANS (yes I know there's a 3pt HANS, but I like the feeling of being held tighter in the seat by a 4 pt system.
Also - does a 5pt require a cut in the seat for the bottom center strap?
Let me ask this another way - without modifications to the car other than perhaps some plates where there are already attachments for buckles and stuff - is there a harness for the c7 that will get me where I want to be - no bar, no drilling holes, no slashing seats?
#2
I saw this cool 4 pt harness setup on a BMW M3 this last weekend where he didn't need a bar, the backs used the rear seat belt buckles and he was able to just unclip everything and put them away to use the stock 3 pt for the drive home.
Is there anything like that out there for the c7 with comp seats? I don't want to lose the factory 3pt for just around town cruising - the wife will not go for a harness! But I'd like something better than the 3pt for future HPDE so I can get a HANS (yes I know there's a 3pt HANS, but I like the feeling of being held tighter in the seat by a 4 pt system.
Also - does a 5pt require a cut in the seat for the bottom center strap?
Let me ask this another way - without modifications to the car other than perhaps some plates where there are already attachments for buckles and stuff - is there a harness for the c7 that will get me where I want to be - no bar, no drilling holes, no slashing seats?
Is there anything like that out there for the c7 with comp seats? I don't want to lose the factory 3pt for just around town cruising - the wife will not go for a harness! But I'd like something better than the 3pt for future HPDE so I can get a HANS (yes I know there's a 3pt HANS, but I like the feeling of being held tighter in the seat by a 4 pt system.
Also - does a 5pt require a cut in the seat for the bottom center strap?
Let me ask this another way - without modifications to the car other than perhaps some plates where there are already attachments for buckles and stuff - is there a harness for the c7 that will get me where I want to be - no bar, no drilling holes, no slashing seats?
#3
Tech Contributor
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
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Harness bar is the only way to go with a Vette. The BMW has a back seat so Schroth makes belts that use the stock back seat belt receivers to fasten the shoulder harnesses.
You can purchase a similar Schroth system (Profi II ASM) to use in the Vette but you will need to install a harness bar and lap belt mounts. That gives you a 4 point harness system that has Anti Submarine capability and lets the harnesses be used where the normal antisub belt can't be used. Most track organizations will accept the ASM 4 point but some don't. NCM doesn't. They require a sub belt. I use a Schroth 2 point sub belt that plugs into the bottom of the Profi II Cam Lock and loop the belt under my legs and out to the lap belt mounts where I fasten that end in the same hole as the lap belt. That gives me a setup similar to the Team Tech Jet Pilot harness which loops around the legs the same way. My problem with the Jet Pilot harness every time I have ridden in a car with them is they always come loose while on track, sometimes very loose. I don't know whether it is because they weren't installed correctly but when I have a student that uses them I tell them I will just use the 3 point since in a Corvette I can cinch it to hold me in place.
Bill
You can purchase a similar Schroth system (Profi II ASM) to use in the Vette but you will need to install a harness bar and lap belt mounts. That gives you a 4 point harness system that has Anti Submarine capability and lets the harnesses be used where the normal antisub belt can't be used. Most track organizations will accept the ASM 4 point but some don't. NCM doesn't. They require a sub belt. I use a Schroth 2 point sub belt that plugs into the bottom of the Profi II Cam Lock and loop the belt under my legs and out to the lap belt mounts where I fasten that end in the same hole as the lap belt. That gives me a setup similar to the Team Tech Jet Pilot harness which loops around the legs the same way. My problem with the Jet Pilot harness every time I have ridden in a car with them is they always come loose while on track, sometimes very loose. I don't know whether it is because they weren't installed correctly but when I have a student that uses them I tell them I will just use the 3 point since in a Corvette I can cinch it to hold me in place.
Bill
#4
Melting Slicks
Member Since: Feb 2009
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2020 Corvette of the Year Finalist (track prepared)
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The Simpson Hybrid HNR is always a good option without a bar.
Last edited by fleming23; 05-01-2019 at 04:38 PM.
#5
Two ways to do this:
1. OEM seats with the OEM seatbelt cinch feature and the Simpson HNR for 3-point belts
2. Harness-bar with proper harnesses
I went the latter route, but sometimes wish I'd just done option 1 as I'm starting to want a C8.
1. OEM seats with the OEM seatbelt cinch feature and the Simpson HNR for 3-point belts
2. Harness-bar with proper harnesses
I went the latter route, but sometimes wish I'd just done option 1 as I'm starting to want a C8.
#6
Instructor
Thread Starter
Thanks for the info - prob go with the HANS 3pt -
when you guys talk about the tensioning of the 3pt - the way I do it is - seat back of track, yank strap to lock - slide seat forward until belt is tight.
theres not some magic button somewhere that does that is there???
when you guys talk about the tensioning of the 3pt - the way I do it is - seat back of track, yank strap to lock - slide seat forward until belt is tight.
theres not some magic button somewhere that does that is there???
#7
Thanks for the info - prob go with the HANS 3pt -
when you guys talk about the tensioning of the 3pt - the way I do it is - seat back of track, yank strap to lock - slide seat forward until belt is tight.
theres not some magic button somewhere that does that is there???
when you guys talk about the tensioning of the 3pt - the way I do it is - seat back of track, yank strap to lock - slide seat forward until belt is tight.
theres not some magic button somewhere that does that is there???
#8
No magic button... pull the shoulder belt as tight as you can with the seat a little back, then move seat forward a little and it'll be mega tight.