Is it Chromoly that gets tig welded or mild steel get tig too ?Just keep in mind it has to be Tig welded.
Is it Chromoly that gets tig welded or mild steel get tig too ?Just keep in mind it has to be Tig welded.
What's the real world weight difference between your mild vs chromoly ?My Daytona maxed out it’s cert at 7.50 because it was mild steel but I never went fast than 8.42@160mph. It had a funny car cage when it was 8.50 cert and needed 7 or 7 bars to get a 7.50 cert. I had the cage taken out of my 82 charger (old pro street car) and had chrome moly put in because it needed some weight loss and the price was more than right (1100.00) but I only ran 10.00 about 100 times in it. The green duster I just sold and my black duster are mild steel and 8.50 cert. My blue duster is full tilt chrome moly 6.50 cert. mild steel cars if built right still bring nice money when selling.
What's the real world weight difference between your mild vs chromoly ?
Surely conduit has been used at leastMeh, just weld you a few random pieces of exhaust pipe together. Done. lol
Shoot, yeah I noticed that pricing cages last night, I maybe looking at purchasing a 6pt and adding later.My son just got home from a race weekend and the shop he works at said the price of chrome moly went up 70% starting in March of this year. It’s a two man shop and my son has been laid off for three weeks because of several cancellations. The owner has also struggled to get tubing this year.
Cage Rage Fabrication LLC, 108 Schar Road, Evans City, PA (2021)
They do nice workMy son just got home from a race weekend and the shop he works at said the price of chrome moly went up 70% starting in March of this year. It’s a two man shop and my son has been laid off for three weeks because of several cancellations. The owner has also struggled to get tubing this year.
Cage Rage Fabrication LLC, 108 Schar Road, Evans City, PA (2021)
I did an eight point, so I could tie the main hoop to the subframe connectors.Shoot, yeah I noticed that pricing cages last night, I maybe looking at purchasing a 6pt and adding later.
They do nice work
Meh, just weld you a few random pieces of exhaust pipe together. Done. lol
seen swing set tubing used in a dirt track u-car before....Surely conduit has been used at least
Hey guys how much rigidity will a 6-point add to strength of the chassis?
Thanks for that info, so far my heavy diet hasn't amounted to any weight gain yet but that could change I'll be 44 in 4 months lolChromoly has an advantage because the cage can be built out of thinner (and lighter) tube and be just as strong. Be wary, however, as it is difficult to weld properly. Overheating can make it brittle and liable to crack under stress. I honestly wouldn’t recommend it unless your builder has experience with it. Fabrication mistakes will more than outweigh the material’s advantages. The nhra hasn’t caught on yet, but there’s a type of mild steel being produced now called docol r8 that’s stronger than DOM but much easier to work with than chromoly. Docol® Tube R8 - A.E.D. Motorsport Products
You have to look closely at the regs concerning your class. The nhra has different tube requirements per vehicle weight that in themselves can really add some weight.
1.75” steel at .095 wall thickness weighs 1.68 lbs per ft. It generally takes about 100-150 ft to build a cage depending on the car and how crazy you want to go, which works out to about 150-200 lbs. This is actually less than 1.5” .120 wall tube (1.77 lbs), which a lot of people use. Chromoly tube of similar strength would be 1.75” @.083 which is 1.48 lbs/ft. This is a .2 lb weight savings per foot of tube, which adds up to a 20 lb weight savings for a 100 ft cage. Maybe just skip lunch.
Nice, I was thinking of fabbing a set of frame connectors this fall tooA six point sure have frame connectors too at a minimum. Trouble is they usually are plated instead of tie’ing everything together. My sons car is a six point for now but I see major changes down the road. He wanted to keep the rear seat in the car so it is what it is but seems to work well running some high 10.0’s with my old 408@3200 poundsView attachment 1715793090