69 Corvette Road Race Inspired Build
03-02-2016, 11:03 AM
#63
1 3/4" x .120" 4130 Chromoly. All TIG welded. I'm pretty sure they broke their bender trying to bend it. Unfortunately, SCCA and NASA don't give a wall thickness concession for alloy tubing so I had to use .120" just like DOM. NHRA would have allowed .083" alloy but I wanted it to be legal everywhere should I ever decide to add on with the front half.
Last edited by Neil B; 03-02-2016 at 11:06 AM.
03-02-2016, 12:28 PM
#64
Le Mans Master
Member Since: Oct 2007
Location: Akron Ohio
Posts: 8,871
Received 1,754 Likes
on
941 Posts
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
1 3/4" x .120" 4130 Chromoly. All TIG welded. I'm pretty sure they broke their bender trying to bend it. Unfortunately, SCCA and NASA don't give a wall thickness concession for alloy tubing so I had to use .120" just like DOM. NHRA would have allowed .083" alloy but I wanted it to be legal everywhere should I ever decide to add on with the front half.
03-02-2016, 12:32 PM
#65
Racer
Very nice looking project. Thanks for sharing, will be curious to see what you do with the rear suspension. Almost pulled the trigger on the 6 link. Stayed mostly stock, added composite leaf, shocks and made sure it was all tight.
03-02-2016, 01:07 PM
#66
Yes, the various rule books are hard to interpret for under 3,000 lbs. vs. 3,000+. I think the SVRA Group 10 cars are right on the edge of 3,000 lb. race weight depending on engine combo.
Last edited by Neil B; 03-02-2016 at 01:17 PM.
03-18-2016, 06:23 AM
#67
Melting Slicks
03-18-2016, 09:33 AM
#68
racer
Look at the size of those meats! Wheels look great, the both look awesome. Keep the pictures coming.
RVZIO
RVZIO
03-18-2016, 12:13 PM
#69
03-18-2016, 05:46 PM
#72
Melting Slicks
03-18-2016, 06:36 PM
#73
Team Owner
Member Since: Oct 2004
Location: altered state
Posts: 81,242
Received 3,043 Likes
on
2,602 Posts
St. Jude Donor '05
Those wheels and tires tuck perfectly!
What model of ccw those are sweet!
What model of ccw those are sweet!
03-19-2016, 01:05 PM
#74
Safety Car
Member Since: Apr 2001
Location: Sarver Pa
Posts: 4,570
Received 784 Likes
on
536 Posts
2021 C1 of the Year Finalist - Modified
Thanks Neil for the great shots ! I like the cage design, but am not too crazy bout the swiss cheese treatment. Especially on the front crossmember. I need to get my cage ordered next week. I'm thinking moly also. I have a tig welder and know how to use it !
Last edited by Pop Chevy; 03-19-2016 at 01:07 PM.
03-19-2016, 08:49 PM
#75
Melting Slicks
Is it not odd the way the Chassis is painted but a lot of the Roll Cage Bars are not Welded all the way around yet ? I realize that this is an old build, as most of the welds don't look to be Tig Welded. I also realize that an Engineer might figure out where the stress is on the Bar and there might not be a reason to Weld them all the way around. But none the less it looks very odd.
03-21-2016, 08:28 AM
#76
Is it not odd the way the Chassis is painted but a lot of the Roll Cage Bars are not Welded all the way around yet ? I realize that this is an old build, as most of the welds don't look to be Tig Welded. I also realize that an Engineer might figure out where the stress is on the Bar and there might not be a reason to Weld them all the way around. But none the less it looks very odd.
03-21-2016, 11:56 AM
#77
Correct, the joints were actually taped over and then painted. I did not get a chance to ask questions about the display, but there are definite intentions to remove the cage from the chassis after the show.
03-24-2016, 05:15 PM
#80
Tech Contributor
Member Since: Jun 2004
Location: I tend to be leery of any guy who doesn't own a chainsaw or a handgun.
Posts: 18,367
Received 771 Likes
on
553 Posts
My biggest discomfort there is the swiss cheesing in the frame area surrounding the driver. Unless that car is still too damn heavy to allow ballast to placed in selected areas, I'd keep the frame intact there for an extra margin of strength surrounding the driver. The "extra" weight is down low and in the center of the car, so the handling/performance penalty is darn small.