Kandied91z

iTrader: (7)

getting ready to do a 4 pt cage in the car. where can i go to find out what has to be done to make it legal.

i want it as clean as possible but it must also be functional so i'm looking to do something as out of the way as i can but still structural and legal in the right way.

xpndbl3

iTrader: (5)

you've posted this in about 3 or 4 forums now.

1991tealRSt-topGuy

tisk tisk tisk

FSTFBDY

iTrader: (33)

I got my Comp. Eng . 8 point from summit racing for Under $200

The main hoop for our cars is $40 the rest is what cost more.

A copy and paste from the NHRA rules

When do I need a roll bar or roll cage, and what should it look like?
A roll bar is required in any convertible running 13.99 seconds or quicker in the quarter mile, and in other cars beginning at 11.99. The roll bar is accepted in vehicles running as quick as 10.00 second e.t., provided the stock firewall and floorboard is intact, other than for installation of wheel tubs. The rollbar must be constructed of minimum 1 ¾ inch o.d. x .118 inch wall mild steel tubing, or 1 ¾ x .083 chrome moly tubing, and must conform to the following diagram:




If the floor and/or firewall has been modified, then a full roll cage is required beginning at a 10.99 e.t. A full roll cage is required in any vehicle running 9.99 seconds or quicker, and any vehicle running 135 mph or faster (regardless of e.t.). The roll cage must be constructed of minimum 1 5/8 o.d.x .118 mild steel tubing, or 1 5/8 x .083 chrome moly tubing, and must conform to the following diagram:



The roll cage of any vehicle running 9.99 or quicker, or 135 mph or faster, must also be certified by NHRA every 3 years, and have a serialized sticker affixed prior to participation.


HOPE this helps your or anyone else looking for the Info..

Bandit5

What if the side bars are removeable? Lets say a swing-out kit?

Kandied91z

iTrader: (7)

not everyone searches all threads....

i'm just looking to make the car a little "stiffer", i can already see stress points from the power that's in it. i would hate to see what happens this summer.

Diabolical

at what point does a vert have to have a roll cage? i see that verts need roll bars at 2 seconds slower than full bodied cars, but what about a cage, is it still 9.99 for verts too?

mw66nova

iTrader: (13)

10.99 and faster t-top and vert cars must have a full 10pt. that is what the new rules say...