Roll Bar/Cage

[carltalon]

Josh, did you guys build the one for your stealth with that bender? It was real nice. I'm really leaning towards getting one built, rather then a bolt in kit, because I think a custom bent one would be able to fit a lot smoother/cleaner, and be able to be closer to exactly what I want.

My Main hoop was bent with there bender. I got the hoop and the straight bars and welded it in myself. John even borrowed me his old tubing notcher.

A 6 Pt with swing outs would be nice in a street car. I really like how safe I feel in my car just driving around.

[turbotalon1g]

RF is getting a lot tougher these days, every year they are getting worse.
But its up to you, If i had your setup I would put the cage in, you should be passing 11.49 all day maybe 3-4 passes till u hit it.

[Shane@DBPerformance]

They yelled at Jet for running 12.0s a few years ago.

[Pushit2.0]

PM for pricing on a main hoop if you want one. I have 1 5/8" .083 chrome moly or 1 3/4" .083 chrome moly and I might have some 1 3/4 .125 mild steel.

The 1 3/4" pipe either mild steel or chrome moly is used for your 5/6 point roll bars. The kits they sell are normally called 8 points because they include the "d" bars which are only used for the 8 point roll cage, you can install them but they are not need to be legal for NHRA/IHRA.

And the 1 5/8" either mild steel or chrome moly is used for the 8 point roll cage, the cage encloses the driver where the roll bar does not.

And welding chrome moly for NHRA you need to use a TIG welder on any chrome moly or chrome moly mild steel joint, and you should use ER70s-2 welding rod, and DO NOT stress relieve the welds. You can still use a MIG welder for welding the 6 x 6 plates to the chassis but for the plate to the pipe you need to TIG.

~John

[JET]

They yelled at Jet for running 12.0s a few years ago.

Yep, I ran four 12.0x's and they came and talked to me three times. I finally told him the goal of my day there was to get booted! I never did quite make it that day, ran a 12.009 though.

Brandon, just go to Iowa and don't worry about a cage. I was running mid 11's down there and they never said a thing and I don't have a cage in. MUCH better traction than RF too.

[niterydr]

I'd go to the track first, then do the cage once you get kicked out. Rockfalls is very lienent on their rules on sport compact days. I put in the full certified cage for my safety, piece of mind, and the power the car made. I only exceeded the 135mph rating once (tad over 136, so not by much), but on that pass I was sideways for a good chunk of the first part of the track. Once I tech'd at rf's and brainerd the first time, they remembered the car and didn't even blink.

John still has the bender in his garage and can probably bend you up a hoop/bars to fit. I know he still has chrome moly as well. Remember that 4130 chrome moly needs to be tig welded, which is much more labor intensive and time consuming.

My next tba project will probably need a 6 point as well, but it will not be a drag car, and that is a good 5 years down the road before it will require one. Full Cages ruin street cars, rollbars are hardly noticeable when probably installed/fitted.

Yeah, that was built with that bender and dies we have still.

John, do you have pictures of Jesse's 6 point rollbar? I know that sucker fit REALLY nice. Everytime John does a cage, he gets it tighter and tighter fitting. Plus, with a few measurements, the main hoop, cross bar, and side bars can be fitted easily to your size (if you had a buddy welding it in, construction would be easy. For some reason, I thought you had a friend that welded).

Anywho, safety equipment is really nice to have, gives you a piece of mind when traveling at high rates of speed, and stiffens the chassis.

[95tsi]

and stiffens the chassis.

Sorry for a little thread jack here... How much change in the chassis stiffness is noticed between a 4pt and 6pt?

[Swifty1638]

I noticed a BIG difference once my setup was installed..stiff yes, but also feels safe, and can corner a bit better too.

-A. Swift

[Pushit2.0]

I will dig up some pics and post them later tonight. A 6 point vs a 4 point harness bar, there would be a little difference as long as you had the door bars installed/welded in.

~John