eke_zetec_RWD Posted March 4, 2015 Posted March 4, 2015 Quick survey. Please fill out if you have a caged car. I'm making cage tube formers and want to make sure they are the best around. 38.1mm tube.... Max width accross bend =.......... Min width inside bend =.......... 44.5mm tube Max width accross bend = Min width inside bend = This should be recorded on your logbook Cheers Jason Quote
eke_zetec_RWD Posted March 4, 2015 Author Posted March 4, 2015 Will you be selling the formers? Nope Quote
smokin'joe Posted March 4, 2015 Posted March 4, 2015 main rollbar: original size (X) 38.1 Reduction (A) 37.9 Exspansion ( 38.4 front rollbar: X 38.1 A 37.9 B 38.5 one of Dave McCahon's pre-bent kits as fitted to my TE71 Levin Quote
mjrstar Posted March 4, 2015 Posted March 4, 2015 Reduction percentage seems VERY low?? Detais from mine: (2.6mm wall thickness) Main Hoop:original size (X) 44.5 Reduction (A) 42.96Expansion ( 44.72Ratio 0.961 Laterals:X 38.1A 36.9B 38.2Ratio 0.966 From Racecafts email, the PDF is dated 1 Jul 14 Quote
smokin'joe Posted March 4, 2015 Posted March 4, 2015 That's pretty bloody good!^^ he's done a few, and is MSNZ tech. we got a MK2 Esky kit off him with the notation: ' if it dosn't fit correctly, the shell is bent', it didn't and it was !! 2 Quote
mjrstar Posted March 4, 2015 Posted March 4, 2015 Bit of rollcage spam here: I have read the rules a couple of times, is it ok to bend the side intrusion bars to make them fit well? it clearly states no bends in diagonals and backstays and does not mention no bends in side intrusion. Mine will need a slight tweak to clear the seat or I can't run them... Quote
eke_zetec_RWD Posted March 4, 2015 Author Posted March 4, 2015 Side is fine to bend as far as I know. A lot are that I have seen. Mine need to be too Quote
eke_zetec_RWD Posted March 5, 2015 Author Posted March 5, 2015 Sooo first tests done. 38.1mm tube Max 38.1 Min 37.8 44.5mm tube Max 44.5 Min 43.8 Pretty happy with this! 1 Quote
eke_zetec_RWD Posted March 5, 2015 Author Posted March 5, 2015 Think the scrap bins are full tho? Jokes 3 Quote
japawagons Posted March 5, 2015 Posted March 5, 2015 Bit of rollcage spam here: I have read the rules a couple of times, is it ok to bend the side intrusion bars to make them fit well? it clearly states no bends in diagonals and backstays and does not mention no bends in side intrusion. Mine will need a slight tweak to clear the seat or I can't run them... Bending side intrusion is fine. I always bend mine so it moves out toward the door and back in. Meaning in a impact on would need to straighten and push the main hoop and lateral apart. I feel that would help but I'm no engineer. Quote
mjrstar Posted March 5, 2015 Posted March 5, 2015 Mean, I am no engineerer either even though I have engineer in my job title. Quote
My name is Russell Posted March 6, 2015 Posted March 6, 2015 Never looked closely at this is quite interesting. Main Rollbar X = 44.45 A = 41.93 B = 44.85 A/B = 0.935 Lateral Rollbar X = 38.1 A = 36.7 B = 38.46 A/B = 0.940 Mine was the first he made with new main hoop size rule. Quote
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