lt1b4c

Does anyone have chassis blueprints I can view?

AlkyIROC

What kind of blueprints?

If you want to build a tube chassis car, you can buy the blueprints from SFI. Chassis spec plans are only $38. You probably only need 25.5A.

http://www.sfifoundation.com/wp-cont...der%20Form.pdf

You don't need anything special to run 8.50 and slower other than the required roll cage installed as per NHRA/IHRA rulebook and even then, there are no 100% specifics since every car is a little different.

lt1b4c

Something like this... http://www.swracecars.com/store/82-9...08-513-BP.aspx

I just can't see paying $99 for this though.

AlkyIROC

That's pretty well the same thing except it's specifically for a third gen. Price is reasonable considering generic blueprints are $38. You're paying for the time it took them to do all the calculations.

$99 is pocket change when you consider the time and effort to build the tube chassis is a minimum of $10,000. That's not including suspension etc that needs to be installed.

KWIK84

iTrader: (5)

Yeah..$99 is dirt cheap to keep from piling up a bunch of 4130 scrap .

lt1b4c

I guess I hadn't thought about it like that.

AlkyIROC

I wish I had a tube chassis car. I could knock about 1000 pounds off the car meaning the engine I currently have could push the car into the range of a required spec chassis. My roll cage and car could be spec'd to a 25.5 certification with a bunch of extra tubes required for the cert and it still wouldn't be considered a tube chassis car. The SFI plans will show what extra tubes I would need but I have no plans to go faster than 8.50 where I would require that certification.

By the time you add suspension, driveline, hang the body etc off the tube chassis, you're looking at probably close to $80,000. A tube chassis car is strictly a purpose built race car. Drag race, or stock car all have different requirements. The only thing that would still be third gen is the basic body style. It would be a lot cheaper to search racingjunk to find a tube chassis third gen that someone is already selling for a lot less. Just make sure it has a current chassis certification. A roller can be a lot less than a turnkey. You supply engine/transmission of your choice.

lt1b4c

I know your right... I looked at a tube chassis firebird last weekend that ran 9.20's with a 500hp sbc. He is asking 14k for it and he runs super gas. Very cheap drag car, it's just I have this 88' Iroc I need to do something with... I have a BBC, a SBC, and an LS1 I could through in it. All my friends have drag cars so I was leaning that direction.

AlkyIROC

A basic 8 point cage will certify to 8.50 so a full tube chassis car is not required. More cage points do specific things but are not required for the certification. I have a lot of extra tubes in my car that are not required for the certification but they all serve a purpose.

Even though my full cage is somewhere under 200 pounds, my race weight is still just over 3000 pounds. It's a fully stripped down car with a BBC.