Can altereds/dragsters sfi spec be upgraded easily?

cutta · 05-24-2020, 03:10 PM

Guys, I'm not sure that this is the best place to put this question but I figured that more people in the Top Sportsman and Top Dragster forum would be knowledgeable on this. I have plans to purchase a dragster or an altered. I had an opportunity to purchase an altered with a sfi 10.3 cert which is limited to a 7.50ET. That got me thinking about the possibilities of upgrading the chassis to 10.2 cert and alternatively, the ability to up grade a dragster chassis from 2.7c to 2.5c. Thanks in advance for the responses.

340Cuda · 05-26-2020, 03:06 PM

I can't give you any advice other than I would probably check with any of the chassis shops I planned on using.

Bill Baer · 12-02-2021, 06:36 PM

I’m not sure on the altered but the dragster may require a larger and thicker shoulder hoop and a thicker and or larger cage also having a chrome plated cage can be limiting you can look up the specs on the SFI website
The 7.50 cert can be for 4 years the faster cert is annually required.
If you want to go faster than 7,50 keep that in mind when shopping for a car, changing the shoulder hoop is a major PIA.

05-24-2020, 03:10 PM	#1
cutta Member Join Date: Jul 2008 Location: Little Rock, AR Posts: 347 Likes: 0 Liked 5 Times in 2 Posts	Can altereds/dragsters sfi spec be upgraded easily? Guys, I'm not sure that this is the best place to put this question but I figured that more people in the Top Sportsman and Top Dragster forum would be knowledgeable on this. I have plans to purchase a dragster or an altered. I had an opportunity to purchase an altered with a sfi 10.3 cert which is limited to a 7.50ET. That got me thinking about the possibilities of upgrading the chassis to 10.2 cert and alternatively, the ability to up grade a dragster chassis from 2.7c to 2.5c. Thanks in advance for the responses. __________________ Adriel Paradise, Paradise Racing Team Driver/Crew Chief(at least my dad claims me to be) B.S. Mechanical Engineering, University of Arkansas

05-26-2020, 03:06 PM	#2
340Cuda VIP Member Join Date: Apr 2003 Location: Tulsa, Oklahoma Posts: 1,620 Likes: 3,546 Liked 717 Times in 309 Posts	Re: Can altereds/dragsters sfi spec be upgraded easily? I can't give you any advice other than I would probably check with any of the chassis shops I planned on using.

12-02-2021, 06:36 PM	#3
Bill Baer Senior Member Join Date: Jul 2007 Location: Nothern IL Posts: 596 Likes: 1 Liked 1 Time in 1 Post	Re: Can altereds/dragsters sfi spec be upgraded easily? I’m not sure on the altered but the dragster may require a larger and thicker shoulder hoop and a thicker and or larger cage also having a chrome plated cage can be limiting you can look up the specs on the SFI website The 7.50 cert can be for 4 years the faster cert is annually required. If you want to go faster than 7,50 keep that in mind when shopping for a car, changing the shoulder hoop is a major PIA. __________________ Bill Baer 3391 SC, 339B SC, QR