hi

i´m thinking about the NHRA rules are for Corvette running 10´s

i know the rules for roll bar and then cage in 9.99 and 135mph
and seat belts, and the fire suite

but the things that i´m not sure about is the bellhousing and axels rules

it says
bellhousing : needs to be SFi 6-1 or 6-2 (what´s the stock rated at)
Axels : spool (not sure about that )
Driveshaft: loop (the corvette´s tube goes over that right)

what are people upgrading in their cars for 10´s to be NHRA legal

thanks
Baezi

 

I believe due to the independent rear you need shackles to go over the axles.
Not sure on the bell housing
Roll bar minimum of 5pt
5pt harness with anti-submarine belt and mount
I think the roll bar has to have padding on it anywhere your body can come in contact with the bar.
Helmet snell 2005 and newer
Thats what comes to mind so far

 

Here's a link for the axle loops.

http://eastcoastsupercharging.com/ha...lf_shaft_loops

For the bellhousing, you'll need to call ECS (phone number is on linked web site)

 

You also need a fire jacket, and if you have a rear mounted battery, you need a remote shut off.

 

Things are getting serious in Iceland
How's things my friend?

What I found from a Hot Rod tech article using NHRA guidelines.
Scott

10.99
Cars running between 10.00 and 10.99 need all the above-mentioned safety equipment, plus driver’s protective clothing, aftermarket axles and an SFI-approved harmonic balancer. The driver needs to have at least a single-layer, SFI-approved jacket such as those sold by companies like Diest, Simpson, RJR and others, as well as long pants and approved driver’s gloves.

The aftermarket axle requirement also extends to installing a C-clip eliminator kit in any rearend that uses a C-clip to retain the rear axle, such as the GM 10- and 12-bolts and the Ford 8.8-inch rearends. While the current NHRA axle rule does not include an SFI spec for axles, experienced axle manufacturers such as Summers Brothers, Mark Williams, Strange and others offer axles intended for this kind of abuse.

Harmonic balancers first became a subject of concern on blown cars that placed enormous loads on the balancer driving the supercharger. Now, any car running quicker than 10.99 needs an SFI-approved harmonic balancer to be legal. Companies like Vibratech, TCI, BHJ and others can supply the necessary legal part.

A new NHRA safety rule change for 1995 states that cars running between 10.00 and 10.99 must have a rollcage unless the car has an unaltered firewall, floorpan and body (except for wheeltubs). This means if you have a street car with a stock floorpan and firewall but have tubbed it for bigger tires, all you need is a five-point rollbar until the car runs quicker than 10.00. Of course, a rollcage is perfectly acceptable if you wish to install one.

9.99
Now we’re into the really quick cars, those running from 9.00 to 9.99 seconds in the quarter. These cars are blazingly fast and capable of speeds approaching 150 mph. Significant improvements must be made to the car in order to step into the 9-second zone. Foremost among these is a rollcage. The cage must be constructed of mild-steel tubing at least 15/8 inch in diameter, with .120-inch wall thickness. It can also be chrome-moly tubing of .083-inch wall thickness with a total of eight attachment points. These eight points refer to the placement of the cage surrounding the driver, including the two rear support bars. NHRA does not require bars that run forward to the front suspension, although many cage designs include them. All cars running 9.99 or quicker must have the cage certified by NHRA and have the NHRA certification sticker attached to the cage.

Attached to the cage is a window net to keep the driver’s arms inside the car. The driver must also wear a neck collar and fireproof clothing meeting an SFI spec. Additional requirements include an NHRA competition license, an external electrical shutoff and a flexplate/automatic transmission shield. If your car can run over 150 mph in the quarter, as many of these cars do, then NHRA also requires a parachute to help slow the car down. Now that we’ve primed the pump, your best bet is to obtain a 1995 NHRA Rulebook for $10 and carefully read the E.T. Bracket General Regulations section. The Rulebook specifies exactly what will be required depending upon your car’s e.t. capability. Drag racing with fast street cars is tons of fun. It’s even better when you do it safely."

 

Hi my friend
i´m good, we are two friends here in Iceland driving a vette trying to hit the 10´s hopefully

how are you doing by the way ??

thanks for your info´s

Baezi

 

Keeping crazy busy
New motor is about set to go in. Stepping up to a forged 416.
Scott

 

BIG LIKE

what´s the setup like ?
what h/C/i and exhaust are you running , what compression

....

i´m stepping up to NOS on my new built 404ci

Baezi