My new rollbar
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From: Godspeed
My new rollbar I've been bouncing around for awhile different rollbar ideas lately and have been considering either a Speedworks rollbar (I actually had one of there road racing bars in my garage,) the soon the be released Wolfe Racecraft setup, and the new LG Motorsport setups.
The reasons I didn't use the Speedworks bar are: painted red; non NHRA legal front bars; fronts were not removable
The reasons I didn't use the Wolfe Racecraft bar are: Not ready for sale; "bent" style rears are not NHRA legal and are not as strong as straight bars; no diagnonal in main hoop; lower fronts not mounted on cross bulkhead
I spoke with Lou/LGM and here are the specs of the setup I finally came up with that meet or exceed all of my criteria:
Custom 6 Point Rollbar
1. Construction: Mild Steel - 1 3/4" x 0.120
2. Paint: Powder coated / anondized black (or other equivalent durable paint method)
3. Main hoop: welded to cross bulkhead with 3/16 plates; road race style diagnonal bar; low horizontal cross bar; bracket provisions for driver and passenger restraints
4. Rear bars: Straight design; side clearance for mini-tubs
5. Front bars: Pinned and removable (driver and passenger); elbow height "NHRA" style
My car is at LGM now and the bar should be finished by the end of the week. I'll post some pics when it's done without the interior. I'm going to dynomat it first and then reinstall the interior, and then hopefully order the restraints.
-Jeremy
[ December 11, 2001: Message edited by: Godspeed ]</p>
The reasons I didn't use the Speedworks bar are: painted red; non NHRA legal front bars; fronts were not removable
The reasons I didn't use the Wolfe Racecraft bar are: Not ready for sale; "bent" style rears are not NHRA legal and are not as strong as straight bars; no diagnonal in main hoop; lower fronts not mounted on cross bulkhead
I spoke with Lou/LGM and here are the specs of the setup I finally came up with that meet or exceed all of my criteria:
Custom 6 Point Rollbar
1. Construction: Mild Steel - 1 3/4" x 0.120
2. Paint: Powder coated / anondized black (or other equivalent durable paint method)
3. Main hoop: welded to cross bulkhead with 3/16 plates; road race style diagnonal bar; low horizontal cross bar; bracket provisions for driver and passenger restraints
4. Rear bars: Straight design; side clearance for mini-tubs
5. Front bars: Pinned and removable (driver and passenger); elbow height "NHRA" style
My car is at LGM now and the bar should be finished by the end of the week. I'll post some pics when it's done without the interior. I'm going to dynomat it first and then reinstall the interior, and then hopefully order the restraints.
-Jeremy
[ December 11, 2001: Message edited by: Godspeed ]</p>
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From: Godspeed
Re: My new rollbar I did some checking and have decided to go with thicker tubing - Mild Steel 1.75" x 0.120 instead of 4130 Chrome Moly 1.75" x 0.095.
I checked with both NHRA and Open Road Racing Rulebooks. The 2001 Rule Book for Open Road Racing requires 4130 Chrome Moly to be at least 1.50" x 0.120 and the NHRA Rulebooks states the 4130 Chrome Moly bar needs to be 1 5/8 x 0.083. Also for Mild Steel tubing the Open Road Race Rulebook requires 1.75" x 0.120 and the NHRA Rulebook requires 1.75" x 0.118.
Mild Steel:
NHRA - 1 3/4" x 0.118
Road Race - 1 1/2" x 0.120
4130 Chrome Moly:
NHRA - 1 5/8" x 0.083
Road Race - 1 3/4" x 0.120
So to meet both of these requirements I'm just going to go with Mild Steel 1.75" x 0.120 and not have the weight savings I had hoped for.
If you would like to read over any of these Rulebooks, here is where I found the information.
Open Road Racing Rulebook
http://www.openroadracing.com/Rulebook/Rulebook.htm
NHRA Rulebook -
http://www.nhra.com/contacts/tech_faq.html
-Jeremy
[ December 11, 2001: Message edited by: Godspeed ]</p>
I checked with both NHRA and Open Road Racing Rulebooks. The 2001 Rule Book for Open Road Racing requires 4130 Chrome Moly to be at least 1.50" x 0.120 and the NHRA Rulebooks states the 4130 Chrome Moly bar needs to be 1 5/8 x 0.083. Also for Mild Steel tubing the Open Road Race Rulebook requires 1.75" x 0.120 and the NHRA Rulebook requires 1.75" x 0.118.
Mild Steel:
NHRA - 1 3/4" x 0.118
Road Race - 1 1/2" x 0.120
4130 Chrome Moly:
NHRA - 1 5/8" x 0.083
Road Race - 1 3/4" x 0.120
So to meet both of these requirements I'm just going to go with Mild Steel 1.75" x 0.120 and not have the weight savings I had hoped for.
If you would like to read over any of these Rulebooks, here is where I found the information.
Open Road Racing Rulebook
http://www.openroadracing.com/Rulebook/Rulebook.htm
NHRA Rulebook -
http://www.nhra.com/contacts/tech_faq.html
-Jeremy
[ December 11, 2001: Message edited by: Godspeed ]</p>
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From: Godspeed
Re: My new rollbar [quote]Might it not have been easier to do the mini-tubs before doing the cage? Just a thought... 's advocate<hr></blockquote>
I was thinking the same time, but we can't always change the way the cards are dealt. I'd like to do the mini-tubs myself and am also considering the LPE kit, so it will be a fun Janurary project for me. <img src="images/icons/smile.gif" border="0">
-Jeremy
I was thinking the same time, but we can't always change the way the cards are dealt. I'd like to do the mini-tubs myself and am also considering the LPE kit, so it will be a fun Janurary project for me. <img src="images/icons/smile.gif" border="0">
-Jeremy
Re: My new rollbar Jeremy,
the bar will receive the 6th point tomorrow morning, and then go to the powder coater. the mini tubs are not a problem. the down bars are not in the way for larger tubs. Composite work is tedious and does require the help of an assistant to ease installation. We can help you out any step of the way. BTW, love the wheel combo. <img src="gr_grin.gif" border="0">
the bar will receive the 6th point tomorrow morning, and then go to the powder coater. the mini tubs are not a problem. the down bars are not in the way for larger tubs. Composite work is tedious and does require the help of an assistant to ease installation. We can help you out any step of the way. BTW, love the wheel combo. <img src="gr_grin.gif" border="0">
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From: Godspeed
Re: My new rollbar Ok you guys are right the mini-tubs should be done now. I gave Lou the go ahead today to do it, so time to get busy! <img src="gr_stretch.gif" border="0">
-Jeremy
-Jeremy
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Launching!
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From: NC
Re: My new rollbar I guess your car is a coupe? I know that for a convertible, it is impossible to meet NHRA's specs for a bar. 3" above the head is impossible to do with a working top, and the main hoop is required to WELD TO THE FRAME, Not the cross-connector as you are doing.
I have a hoop that I bent that will reach to convertible top as high as possible, but never finished it as it looks like we are selling the car this week.
Dave
I have a hoop that I bent that will reach to convertible top as high as possible, but never finished it as it looks like we are selling the car this week.
Dave
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Thread Starter
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Joined: Nov 2001
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From: Godspeed
Re: My new rollbar [quote]I guess your car is a coupe? I know that for a convertible, it is impossible to meet NHRA's specs for a bar. 3" above the head is impossible to do with a working top, and the main hoop is required to WELD TO THE FRAME, Not the cross-connector as you are doing.
I have a hoop that I bent that will reach to convertible top as high as possible, but never finished it as it looks like we are selling the car this week.
Dave
<hr></blockquote>
I'm not sure about the Convertibles, but for the Coupes and Hartops the best place to mount the main hoop is the cross bulkhead in the C5. There isn't much behind the seats on the floor of the car except a thin piece of metal.
I have a hoop that I bent that will reach to convertible top as high as possible, but never finished it as it looks like we are selling the car this week.
Dave
<hr></blockquote>
I'm not sure about the Convertibles, but for the Coupes and Hartops the best place to mount the main hoop is the cross bulkhead in the C5. There isn't much behind the seats on the floor of the car except a thin piece of metal.
Re: My new rollbar Nice setup! <img src="gr_images/icons/cool.gif" border="0"> How much weight does it add to your car? What is the cost too including install? thanks. <img src="graemlins/z06.gif" border="0" alt="[Z06 Corvette]" />
FormerVendor
Joined: Nov 2001
Posts: 654
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From: Dallas/Wylie Texas
Re: My new rollbar I will weigh one tomorrow, and get back to you.
Cost, installed, is $1195 for the .120 wall NHRA bar.
The SCCA road race bar 1 3/4"x.095 wall is $200 less, installed. or $595 + shipping.
Thanks,
Lou Gigliotti LG Motorsports
Cost, installed, is $1195 for the .120 wall NHRA bar.
The SCCA road race bar 1 3/4"x.095 wall is $200 less, installed. or $595 + shipping.
Thanks,
Lou Gigliotti LG Motorsports
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From: Godspeed
Re: My new rollbar I'm moving my web site. I should have it back up tonight. Also I'm going to be taken some more pictures of the rollbar soon, now that it is finally installed with the 5-points.
-Jeremy
-Jeremy
On The Tree
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From: Brick, NJ
Re: My new rollbar Godspeed, you are saying that you want a bar that is legal on both the NHRA and road race circut, but according to this line......... "Main hoop: welded to cross bulkhead with 3/16 plates; road race style diagnonal bar; low horizontal cross bar; bracket provisions for driver and passenger restraints"....it does not meet NHRA requirements as it does not go the chassis. The bulkhead is not a chassis connection, and this can be a very grey area depending on the track you run at.
FormerVendor
Joined: Nov 2001
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From: Dallas/Wylie Texas
Re: My new rollbar I believe that in a C5 the cross bulkhead is part of the Chassis. The Hydraformed rails alone cannot be considered the only part of the chassis. If you compare a C5 to an F body they require the same strength, and acomplish it in much the same way.
If anyone has the exact wording of the nhra rule, I would be interested in hearing how they address the f body, and how that is different than the C5 cross bulkhead. The C5 is just a hybrid of a frame car, and a unibody construction.
Thanks,
Lou Gigliotti LG Motorsports
If anyone has the exact wording of the nhra rule, I would be interested in hearing how they address the f body, and how that is different than the C5 cross bulkhead. The C5 is just a hybrid of a frame car, and a unibody construction.
Thanks,
Lou Gigliotti LG Motorsports
On The Tree
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From: Brick, NJ
Re: My new rollbar Lou, the difference mainly is in the 6" plate that is "acceptable" in a unibody. Using the "bulkhead" does not allow the 6" mounting plate. Even if you took out the tanks and welded in a plate underneath, it not being flat could be an issue.