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25.X Chassis cert

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Old 03-12-2007, 02:27 AM
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Default 25.X Chassis cert

What all is involved? i read the NHRA rules but don't know if i need a 25.4 or a 25.5

Car has stock floor pan, and stock firewall, appx 3500lb race weight.

How much should a it cost to have the appropriate cage get a 25.5 chassis cert?

This is my first full racecar, thanks guys.

does it have to be a 4 link car? or can it retain the stock suspension?
Old 03-12-2007, 04:44 AM
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25.5 will cert you to 8.50 (3600 lb maximum). To go faster you need 25.2 but you have to be 3200 lbs or less.

It can be stock suspension. Plenty of them built on this site. As far a cost...be ready to open your wallet
Old 03-12-2007, 05:39 AM
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25.5 - Full Bodied Car Stock or Modified/OEM Floorpan and Firewall with OEM Frame or Uni-Body Construction – 7.50 to 8.49 Seconds; 3,600 lbs. Maximum

25.2 - Full Bodied Car Tube Chassis – 7.49 Seconds & Quicker; 3,200 lbs. Maximum
Old 03-12-2007, 07:00 AM
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1 of you is wrong ,1 is 1/2 correct,
to 8.50 is a regular cert,
to 7.50 is a 25-5 up to 3600lbs ,can be mild steel or chrome moly,
to 6.00 is a 25-2 up to 3200lbs,and has to be all chrome moly
[Jay,s car was a 25-2 stock floor pan f body]
the above certs are for stock type car,s round tube cars are different certs like 25-1,e,d, and so on,
Old 03-12-2007, 09:36 AM
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Bout to say, I thought my molly 10 point was legal to 8.50's LOL.

Yeah someone post the costs up on the 25.5 and 25.2

I assume thouse weights is WITH the cage?
Old 03-12-2007, 09:47 AM
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Prices start at $7500.00 for a 25.5 and $10 000.00 for a 25.2. Both include window net, seat mounts, seat belt tabs etc.
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Old 03-12-2007, 10:07 AM
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wow, thats about 3k more than i was expecting........ looks like i'll have to stick with my 10 point and when of if i ever go faster than 8.50's i'll have it done.... i really liked the idea of the added safety even if i didn't do it.

Madman, is there anything (legal) between a 25.X cert and a 10 point
Old 03-12-2007, 10:55 AM
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Originally Posted by Juiced
wow, thats about 3k more than i was expecting........ looks like i'll have to stick with my 10 point and when of if i ever go faster than 8.50's i'll have it done.... i really liked the idea of the added safety even if i didn't do it.

Madman, is there anything (legal) between a 25.X cert and a 10 point
not for faster than 8.50[regular cage] after that they all heve to be 25 spec cages bob
Old 03-12-2007, 11:12 AM
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i doubt the car will even mke it into the 8's this year.......

How many bars and where can i add them to my 10 point to still keep the cage nhra legal is my question.
Old 03-12-2007, 11:48 AM
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Originally Posted by Juiced
i doubt the car will even mke it into the 8's this year.......

How many bars and where can i add them to my 10 point to still keep the cage nhra legal is my question.
legal for what,if its a cage its legal to 8.5??????
Old 03-12-2007, 11:50 AM
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Originally Posted by NRC-Motorsports
legal for what,if its a cage its legal to 8.5??????
I know that, if i was to add bars to the 10 point would it make it not pass tech?

An example would be a x-bracing to the rear bars, roof, and doors
Old 03-12-2007, 11:57 AM
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Originally Posted by Juiced
I know that, if i was to add bars to the 10 point would it make it not pass tech?

An example would be a x-bracing to the rear bars, roof, and doors
so long as original is correct anything extra is not part of cert,but before you go adding make sure what you add will be to spec for the next upgrade if you ever do one,so it doesnt have to come out again
Old 03-12-2007, 11:58 AM
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as long as it has all the needed connections/tubing size/thickness, etc. for a 8.5 certed 10 pt, you can add a drivers halo, x braces and stuff to it I think and it will still be legal to 8.50, but in order to be legal to 7.50, there is a bunch of stuff it has to have, nrcbob or madman can tell you way better then I can explain it.

Can you convert a 10 pt to a 25.5? I think you can, but dependong on how the 10 pt was done it may or may not be possible though, I am not 100% sure.
Old 03-12-2007, 05:30 PM
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Originally Posted by MADMAN
Prices start at $7500.00 for a 25.5 and $10 000.00 for a 25.2. Both include window net, seat mounts, seat belt tabs etc.
no offense and i have nothing but respect for your work but thats insane. 25-5 should be 3500-4000 and 25-2 should be 6-6500 and thats about average. anything a whole lot more your just robbing someone.
Old 03-12-2007, 05:36 PM
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Have you called any builder who does stock floor cars?? The time isnt putting the cage in its all the floor board work, plus the trans crossmember, seat mounts, r&r windows, fitting the dash , chute handle, etc. Call around I'm right there with the reputable chassis shops.

Hell I charge $3000.00 for a 10pt.
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Old 03-12-2007, 05:40 PM
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Originally Posted by 68maro
no offense and i have nothing but respect for your work but thats insane. 25-5 should be 3500-4000 and 25-2 should be 6-6500 and thats about average. anything a whole lot more your just robbing someone.
no offense[dont you hate when someone starts a sentence that way] but do you build cars, theres almost 2000.00 worth of steel min,[and prices rise almost weekly]in these cars plus, if the cars built the way mad man and we build them,way more hours and extra,s [always compare apples to apples,] than they get charged for,and your paying for the mans knowledge and a car that works,
remember anyone can weld but not all can build cars correctly bob
Old 03-12-2007, 05:40 PM
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Originally Posted by MADMAN
Have you called any builder who does stock floor cars?? The time isnt putting the cage in its all the floor board work, plus the trans crossmember, seat mounts, r&r windows, fitting the dash , chute handle, etc. Call around I'm right there with the reputable chassis shops.

Hell I charge $3000.00 for a 10pt.
i see you were typing as i was, lol
Old 03-12-2007, 06:00 PM
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The local chassis builder "Tyson" charges $3k for a basic 10 point setup.
Old 03-12-2007, 06:05 PM
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Originally Posted by MADMAN
Have you called any builder who does stock floor cars?? The time isnt putting the cage in its all the floor board work, plus the trans crossmember, seat mounts, r&r windows, fitting the dash , chute handle, etc. Call around I'm right there with the reputable chassis shops.

Hell I charge $3000.00 for a 10pt.
i know if i had the money there would only be 2 shops in the ls1 community to convert my car, W2W and Madman.... Afterall it is my life....

I think in the meantime i'm going to have to wait and save when i get close to reaching my cert limit i'll try and have it done.

Forget abou the 2-3k in steel what abou the hours spent welding, a local welding shop charges 125 an hour to tig, 200 if it's done outside their shop.

If you don't mind me asking madman how many hours does it take to weld in a 25.5 cage?

Last edited by Juiced; 03-12-2007 at 06:31 PM.
Old 03-12-2007, 06:30 PM
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The welding is the easy part its the fitting and making it look trick.
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