NHRA 24 Inch Rule, 1949 Chevrolet Gasser

In this video we address the height of the engine. It currently sits at 25 1/4 inches from the ground. NHRA dos not want the engine crankshaft center line any higher than 24 inches.

[@kathysarmcandy1992]

Love you, man. My dad ran circle track in the 50's in a 55' Chevy a three on tree, second held by a bungee. GMC 302 with a Howard tri carb 94 Stromburg. Get you some.

[@ThrottleStopRacing]

Thanks. I played in the past in a front engine dragster on the drag strip. This time it will be my wife in the car having fun.

[@chaindriven61]

Nice!

[@ThrottleStopRacing]

Now all I have to do is the front mounts

[@ronosga4391]

For some reason I was thinking a drive shaft loop had to be made of a single piece of material. I used a piece of 1/4" x 3" HRS and bent it, then put the weld seam at the bottom.

[@ThrottleStopRacing]

I have read the rules on the driveshaft loop requirements. It says less than 9 inches from the front of the drive shaft and at lest 2 inches wide. I found nothing saying it had to be solid. I do plan on welding in pieces between the two hoops to make a solid hoop.

[@stevehammel2939]

@@ThrottleStopRacing I really like your fabrication skills, the drive shaft loop looks strong enough when bolted together.

[@ThrottleStopRacing]

@@stevehammel2939 The question is how the local tracks will enforce the rule on the loop.

[@dotell3359]

Excellent fabrication 😊 18:30

[@ThrottleStopRacing]

Thank you once again.

[@kathysarmcandy1992]

Put air back in the tires after inspection. Wink wink.

[@ThrottleStopRacing]

That may have to be a option.

[@tomdeyle6103]

Will the weight of the body , seat, fuel cell, battery etc. add enough weight to lower the car closer to the ground and that 24" number you are looking for ? What are the rules for IHRA and for WDRA that is the sanctioning body for Empire?

[@owlmessenger]

I actually asked Dad this question when he was working on figuring this out, apparently the weight is negligible enough that it's a better idea to do it this way. Me standing on the frame to simulate extra weight only got us an eighth of an inch.

[@ThrottleStopRacing]

I am counting on the weight of the body, etc. to lower the vehicle/engine by 1/4 inch in the overall drop of 1 3/4 inches. I'm not sure of IHRA or WDRA racing rules but they usually follow NHRA rules, and some time in the future I may want to run at a NHRA track.

[@StephenGiovi]

Sir: Just a word to the wise: I don't see a flex plate scatter shield bolted to the engine/transmission. NHRA rules for a Stock Modified class. I do understand that you are in the Gasser Class. See ya!

[@briancollier537]

Front suspension would be where I'd go.

[@ThrottleStopRacing]

The problem with lowering the suspension is then there would be an interference in the steering linkage