Stop in for a cup of coffee
- Thread starter toolmanmike
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ScampMike
Despicable Damn Yankee
this on should be close enough - - TigerCage :: 1968-1974 Chevy Nova - TigerCage - RideTech.com - Suspension Specialist - Online Store 
Yea, If I put Drag slicks on that will be a handful on the track. I can see the roll bar/cage.
tell ya what tim, I'm gonna solve the problem, trade me darts, problem solved, though i'm keeping my suspension
@ScampMike @Mopar Tim
huh boys...... direct from the NHRA 2017 year book...... found this.
"Unibody cars with stock floor and firewall (wheeltubs permitted) may attach roll bar with 6-inch x 6-inch x 0.125-inch (1/8") steel plates on top and bottom of floor bolted together with at least four 3/8-inch (0.375") diameter bolts and nuts, or weld main hoop to rocker sill area with 0.125-inch (1/8") reinforcing plates, with plates welded completely"
huh boys...... direct from the NHRA 2017 year book...... found this.
"Unibody cars with stock floor and firewall (wheeltubs permitted) may attach roll bar with 6-inch x 6-inch x 0.125-inch (1/8") steel plates on top and bottom of floor bolted together with at least four 3/8-inch (0.375") diameter bolts and nuts, or weld main hoop to rocker sill area with 0.125-inch (1/8") reinforcing plates, with plates welded completely"
Also, take note of this:
Required beginning at 11.49 with a closed car/truck, 13.49 with a convertible.
This topic will cover a 5-point roll bar as opposed to a roll cage. Most fellows these days will go ahead and build a cage while they have the welder and their tools fired up, but we'll cover the bar for those of you who don't plan on going 9's (or quicker). With an otherwise unaltered floor and firewall, a 5-point bar will take you to 10.00 flat. If the floor is altered in excess of 4 square feet (not counting wheel tubs or stock removable floor panels which are bolted, such as transmission removal panels on a pickup truck) or the firewall is altered in excess of 1 square foot, then a roll bar will take you to 11.00 and a roll cage as well as additional SFI equipment is required at 10.99.
sounds like you need a full cage for a convert...
Required beginning at 11.49 with a closed car/truck, 13.49 with a convertible.
This topic will cover a 5-point roll bar as opposed to a roll cage. Most fellows these days will go ahead and build a cage while they have the welder and their tools fired up, but we'll cover the bar for those of you who don't plan on going 9's (or quicker). With an otherwise unaltered floor and firewall, a 5-point bar will take you to 10.00 flat. If the floor is altered in excess of 4 square feet (not counting wheel tubs or stock removable floor panels which are bolted, such as transmission removal panels on a pickup truck) or the firewall is altered in excess of 1 square foot, then a roll bar will take you to 11.00 and a roll cage as well as additional SFI equipment is required at 10.99.
sounds like you need a full cage for a convert...
Like that! Good news. All they want is a roll bar over your head. dont require a cage.
ScampMike
Despicable Damn Yankee
so - I have to go to NJ on Saturday - do I a: go highway and deal with tolls and the somewhat crappy 3.5hr ride or b: avoid tolls, have slightly better/nicer ride and spend 4.5hrs one way..?
Back to bummer....
4.5 for the better trip.
ScampMike
Despicable Damn Yankee
kinda leaning that way - I can likely do it in 4 as long as traffic isn't horrible..
I guess I could install and run the car, they have no way of predicting the time before hand , do they?
no. worst they can do is tell you not to bring it back until up to the standards for the time you ran.
Just made your day...
Time rules for the Convertible Roll Bar requirement.
Any convertible running a 13.49 OR FASTER! up to an 11.00 ET are required to have a roll bar. Convertibles faster than 11.00 must have a roll cage surrounding the driver that is at minimum 1 inch wider than the driver's shoulders on each side.
the official wording "roll bar is required in any convertible running 13.49 seconds or quicker in the quarter mile, and in other cars beginning at 11.49. The roll bar is accepted in vehicles running as quick as 10.00(11.00 for convertibles) 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."
in otherwords, bolt a damn bar in and roll with it
Im sure it will be quicker then 13.49.
most likely. But you'll be fine from 11.00-13.49. unless track rules state otherwise. I'd build it to NHRA specs, which most tracks follow.
That is what i am going to do.
ScampMike
Despicable Damn Yankee
now you're onto something - just go - tell them it's a very warm 318 - then act like you can't believe it when they hand you the time slip...
ScampMike
Despicable Damn Yankee
sure - they'll be mad at you, but by then it'll be too late
i'd be surprised if you break out of the 11.00 range
I would as well. Not too likely.
Bet it could get close with some suspension mods.
how hot is this little 340?
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