Nut Job

Im building a cage more to stiffin the chassis then protect but would like protection. My question is where should i have bars and where should i connect to the body? I would like to keep cost and time down so i really want bars where major flexing is going on. THANKS!

1982 oval track racer

25BP

AutoPower makes 4 pt on up depending on what your budget is. I have a 4 pt for now as it was bought when the car was on the street. It is a nice unit, great belt locations and allowed for the seat to be set all the way back if needed. It does help with keeping the body flex down and if you opted for 6 or 8 points would do so even more.

They sell either bolt in or weld in depending on your needs. Another place to look is Jegs online, they offer weld cages for the FC and possibly for the FB as well.
A 12pt weld in cage for the FC was $279! Pretty cheap, and if santioning bodies are not a concern you might find the right cage for your needs.
Hope it helps.

Louis M

damn!

Louis M

http://www.jegs.com/cgi-bin/ncommerc...00&prmenbr=361

# 4 and 8 point roll bars manufactured from 1-3/4'' x .134-wall mild steel tubing
# 10 and 12 point roll cages manufactured from 1-5/8'' x .134-wall mild steel tubing
# Includes 6'' x 6'' x 1/8'' mounting plates
# Tube ends notched for a great fit and easier installation
# 8, 10, and 12 point cages exceed NHRA and IHRA standards
# Complete, easy-to-follow installation instructions included
# Welding required

550-945101K
4-Point Roll Bar Kit $129.99
550-945103K
8-Point Roll Bar Kit $149.99
550-945104K
10-Point Roll Bar Kit $219.99
550-945105K
12-Point Roll Bar Kit $259.99

25BP

I have asked around of people who have bought these products and haven't gotten too much response. Most have used parts of the kit. For the price it seems like a great deal, but if the install takes 2x as long and lots of tweeking it might be better to have a custom unit built.

If anyone has seen or used this product, let up know how it is.

Kill No Cone

iTrader: (6)

Do you know if the jegs cage will pass a scca inspection?

DaveB

The cage could be legal in that size if the tubing is seamless or DOM(drawn over mandrel) It would be my opinion that, at those prices, it is ERW tubing which will not pass tech in many sanctioning bodies. For a pre-built cage, I like Kirk Racing a lot.

db

89rx7gtu

yeh, damn indeed, thats rally cheap...

peejay

SCCA what?

Different racing types warrant different types of cages. Some SCCA racing classes require (or at least *did* require) bolt in cages so that the roll cage is flexible to an extent so that it cannot add to chassis stiffness. (IE it's a safety device only, not doing double duty as a chassis stiffener) Meanwhile the rally classes require the cages to be welded in at multiple points plus they specify tubing types, minimum thickness/diameter, minimum places to put tubing (some of which is contradictory!) and *then* it has to be OK'ed by a scrutineer, who are all human and may have different interpretations of the rules.

Cheap is not something you want to have in safety.

Speed Raycer

Cheap rollcages are just that... cheap. When you consider that there is about $250 material cost or so in 100 feet of DOM tubing, that leaves a grand total of $29 worth of engineering on those pre-fab cages.

To answer the original question... you'll want your main hoop pads to attach where the rockers and the rear crossbrace intersect. I personally like tieing the crossbrace, rockers and wheelwell together with the pad/box and putting the hoop in the middle of the pad. Please, do not mount the main hoop to the floor unless you've got a large enough pad to tie into a vertical section of both the rocker and the crossbrace.

The rear hoop brace pads should try to pick up the frame rails, the shock towers and the coil spring perch brace if possible. Pay attention to the angle of the rear hoop braces in relation to the main hoop. Anything under 30 degrees is getting weak. For this reason, the supports will end up attaching somewhere near the shock mounts.

The front downbar mounting pads locations depend on whether you go in front of the dash or through the dash. Just make sure that the pad touches the vertical on the rocker.

If you need some pics... check out my website.

Oh... BTW, I'm working on shipping cages with FedEx.

88GT

Nut Job, don't take this personally but your priorities are way off here.. Sounds like protection is secondary to you. Safety should be first and foremost above all else! This is "RACING" Step back and ask yourself what you truly plan on doing with the car.. If you want cost and time down you shouldn't be on the track. Good luck!

Silkworm

Re: Jegs cage, that cage will not pass SCCA or NASA race tech, it's missing the main hoop diagonal, and several of those bars would have to be left off to pass Improved Touring rules (higher race classes may be ok). Tubing is also going to be very heavy at 1.75x.134 (IT spec for our weights is 1.50x.120 or 1.75x.09 if I recall correctly)

PaulC

Kill No Cone

iTrader: (6)

Wow, speed raycer that is a sweet looking cage. Would you built a 4-point roll bar with a diagnol and ship it in pieces?

Speed Raycer

Sure... shoot me an email....

scott(at)izzyscustomcages.com (replace with @ )