Lets make the definitive Harness and racing seat thread! - Page 10 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

EarlyApex · 03-30-2015, 11:35 AM

I specifically didn't want to attach to the stock seat belt mounts. Both locations require a spacer as the threaded holes are recessed below the interior trim. Any added parts could affect the function of the stock belts so I wanted to avoid the possibility. The bar is removable with 4 bolts so the rear seat function is unaffected. I've never had a person in the rear seat so for me not an issue, I will seldom if ever remove the bar.

The upper belt mount as designed allows the belt mount bracket to swivel ensuring the belt is always aligned to the driver. If you mounted a harness bar rigidly so that it added stiffness to the chassis the belt would no longer be free to swivel. Not GM's design intent. Not having done the original GM design, I am reluctant to modify the original anchor points function as I don't know the assumptions the engineer made. It might not have a negative effect but could also have a catastrophic in an accident. Safest to leave it as designed if the stock belts will still be used.

Actually, I used the BK bar as a starting point for the basic concept. I did the actual design from scratch using my own measurements of the pickup points and Camaro geometry. The brackets were cad designed (cardboard aided design) and then the other cad was used to get the bar geometry figured out. I am starting the bar weldment today, just got the tubing on Friday, so should have some completed pictures later this week.

crc91 · 03-30-2015, 04:33 PM

Quote:

Originally Posted by EarlyApex

I thought I'd share the harness bar/tank plate design I am working on. I do stuff like this for fun and have a well equipped shop so would rather build my own than buy. First, thanks to all of the people that posted pictures of their setups as it was a big help in deciding how I would do mine. The tank plate is finished and the first prototype is installed. The two lower brackets are also completed, next I will order up the materials for the main bar weldment. I should have this done in a couple of weeks and will post pictures of the completed installation. It looks like the total cost will be in the $200-$300 dollar range, that of course doesn't include my labor as that is free.

Looks awesome man! I'm interested.

Mgizzle · 03-30-2015, 09:50 PM

Cool stuff. The other thing I noticed all ur bolts are in single shear. Did u consider a clevis on the tank plate and the plate behind rear seat?

EarlyApex · 03-30-2015, 11:09 PM

I am using 1/2" rod ends with grade 8 bolts, shouldn't be an issue.

Stock Boy · 03-30-2015, 11:23 PM

Tomorrow I'm heading to OG Racing to try out some Sparco seats... My left knee can't take it anymore.... Planning on 5/6 point harness and an Autopower rollbar. It will only get worse when I go to R comps so this is something that I MUST do! (I keep telling myself this)

EarlyApex · 03-31-2015, 05:49 PM

At my last track day (last sat) my informal survey of the advanced run group was about 90% roll bars. Most people I talked to said seats were the most important first upgrade. I'd also say that over 75% of the group was running "R" rated tires with 50% shaved (looked like slicks).

I am reluctant at this point to change to a race seat so the harness setup is that next best way to be more planted in the seat. A roll bar is a better option but not right now for me. Maybe some time in the future.

CrystalRedTintcoat · 04-09-2015, 11:47 PM

Getting my Beyer-Krause harness mount and Schroth ASMs installed tomorrow.

-CRT

Sent from my iPad using Tapatalk

crc91 · 04-10-2015, 07:47 AM

Cool post up some pics!

EarlyApex · 04-10-2015, 10:44 AM

I am also thinking of using the Schroth Profi II ASM, do you know of a good place to buy them?

brt3 · 04-11-2015, 12:08 AM

Quote:

Originally Posted by EarlyApex

I am also thinking of using the Schroth Profi II ASM, do you know of a good place to buy them?

Bought mine HERE

IOM Black Diamond · 05-03-2015, 01:31 PM

Is anyone running the kirkey seats?

summit1le · 05-07-2015, 06:10 AM

Putting a feeler out there. I am ordering an RPM Roll Bar. I have the Speedware setup for my harness Bar. Anyone interested? Bar is in perfect condition and has all hardware?

1977and2010 · 05-09-2015, 08:24 AM

Quote:

Originally Posted by summit1le

Putting a feeler out there. I am ordering an RPM Roll Bar. I have the Speedware setup for my harness Bar. Anyone interested? Bar is in perfect condition and has all hardware?

I sent you a pm

summit1le · 05-09-2015, 01:03 PM

Quote:

Originally Posted by 1977and2010

I sent you a pm

I don't have a PM?

03-30-2015, 11:35 AM	#127
EarlyApex Drives: 2013 IOM 2SS 1LE Join Date: Aug 2013 Location: Damascus Or Posts: 403	I specifically didn't want to attach to the stock seat belt mounts. Both locations require a spacer as the threaded holes are recessed below the interior trim. Any added parts could affect the function of the stock belts so I wanted to avoid the possibility. The bar is removable with 4 bolts so the rear seat function is unaffected. I've never had a person in the rear seat so for me not an issue, I will seldom if ever remove the bar. The upper belt mount as designed allows the belt mount bracket to swivel ensuring the belt is always aligned to the driver. If you mounted a harness bar rigidly so that it added stiffness to the chassis the belt would no longer be free to swivel. Not GM's design intent. Not having done the original GM design, I am reluctant to modify the original anchor points function as I don't know the assumptions the engineer made. It might not have a negative effect but could also have a catastrophic in an accident. Safest to leave it as designed if the stock belts will still be used. Actually, I used the BK bar as a starting point for the basic concept. I did the actual design from scratch using my own measurements of the pickup points and Camaro geometry. The brackets were cad designed (cardboard aided design) and then the other cad was used to get the bar geometry figured out. I am starting the bar weldment today, just got the tubing on Friday, so should have some completed pictures later this week. Attached Images __________________ Last edited by EarlyApex; 03-30-2015 at 11:42 AM. Reason: added pictures

03-30-2015, 09:50 PM	#129
Mgizzle Drives: 2013 Camaro 1LE 1SS Join Date: Aug 2012 Location: Detroit Posts: 1,252	Cool stuff. The other thing I noticed all ur bolts are in single shear. Did u consider a clevis on the tank plate and the plate behind rear seat? __________________ I work for General Motors and am not an official spokes person for General Motors. My views and opinions are my own and not those of General Motors.

03-30-2015, 11:09 PM	#130
EarlyApex Drives: 2013 IOM 2SS 1LE Join Date: Aug 2013 Location: Damascus Or Posts: 403	I am using 1/2" rod ends with grade 8 bolts, shouldn't be an issue. __________________

03-31-2015, 05:49 PM	#132
EarlyApex Drives: 2013 IOM 2SS 1LE Join Date: Aug 2013 Location: Damascus Or Posts: 403	At my last track day (last sat) my informal survey of the advanced run group was about 90% roll bars. Most people I talked to said seats were the most important first upgrade. I'd also say that over 75% of the group was running "R" rated tires with 50% shaved (looked like slicks). I am reluctant at this point to change to a race seat so the harness setup is that next best way to be more planted in the seat. A roll bar is a better option but not right now for me. Maybe some time in the future. __________________

04-09-2015, 11:47 PM	#133
CrystalRedTintcoat Drives: 2013 2SS 1LE NPP GBE Join Date: Sep 2012 Location: Bay Area, online, & in my 1LE Posts: 2,667 View My Garage	Getting my Beyer-Krause harness mount and Schroth ASMs installed tomorrow. -CRT Sent from my iPad using Tapatalk __________________ 2013 1LE NPP GBE Mods Track Days

03-30-2015, 11:23 PM	#131
Stock Boy Drives: 2014 1LE Join Date: Oct 2013 Location: Northern Virginia Posts: 479	Tomorrow I'm heading to OG Racing to try out some Sparco seats... My left knee can't take it anymore.... Planning on 5/6 point harness and an Autopower rollbar. It will only get worse when I go to R comps so this is something that I MUST do! (I keep telling myself this)

04-10-2015, 07:47 AM	#134
crc91 Drives: '14 1LS Join Date: Apr 2014 Location: Mandeville Posts: 2,166	Cool post up some pics! __________________ Patiently waiting for my 2023 SS 1LE

04-10-2015, 10:44 AM	#135
EarlyApex Drives: 2013 IOM 2SS 1LE Join Date: Aug 2013 Location: Damascus Or Posts: 403	I am also thinking of using the Schroth Profi II ASM, do you know of a good place to buy them? __________________

05-03-2015, 01:31 PM	#137
IOM Black Diamond HT5 COTW 1/21/13 Drives: 2010 Camaro Inferno 2SS RS 6M Join Date: Apr 2011 Location: Pleasant Hill, Or Posts: 2,486	Is anyone running the kirkey seats? __________________

05-07-2015, 06:10 AM	#138
summit1le Drives: 15 Lexus RCF, 17 Vette Grand Sport Join Date: Apr 2013 Location: South Florida Posts: 549	Putting a feeler out there. I am ordering an RPM Roll Bar. I have the Speedware setup for my harness Bar. Anyone interested? Bar is in perfect condition and has all hardware? __________________ 2013 Summit 1SS 1LE w/NPP, SW 1 7/8" Long Tube Headers, CAI Intake, Ported TB, Cammotion 224/232 113 LSA, BTR Valvetrain, Melling Oil Pump, 468 HP 423, Apex Catch Can, Tank Plates, RPM 4 Point Roll Bar with SCCA/NASA Cross Brace, Schroth 6 Point Han's Harness, OMP WRC Front Seats, F.M.T Trailing Arms, F.M.T Solid Aluminum Subframe Bushings, Moreno Motorsports Camber Plates, BMR Bushings Front and Rear, Essex/AP Racing Radi-Cal Endurance Front Brakes, Quantum Brake Cooling Ducts, ZL1 Rockers, ZL1 Air Deflectors, Heritage Grill, Pfadt Springs.