View Full Version : SFI 25.3 rollcage (6.50 cert), Overbeek Rear Prostock Wing and Dual chutes finished


Fireball
06-11-2010, 06:26 PM
This is a 25.5 to 25.3 upgrade I've been working on for a while now...ended up adding or replacing something like 25 bars :eek:

Added the last of the gussets yesterday and started painting it today. Got the first coat done in the driver area, need to put a coat on in the rear area, then do a 2nd coat. Using Rustoleum HAMMERED paint...stuff is pretty bada$$ :nod:

Going to try to cert it in a few weeks...once certed, I'll get all the floor pans fully welded in...

Driver side
http://home.comcast.net/~tfranklin5580/25p3_1.jpg

Driver side roof
http://home.comcast.net/~tfranklin5580/25p3_2.jpg

Passenger side
http://home.comcast.net/~tfranklin5580/25p3_3.jpg

Passenger side roof
http://home.comcast.net/~tfranklin5580/25p3_4.jpg

windshield gussets
http://home.comcast.net/~tfranklin5580/25p3_5.jpg

Rear bars (still need to paint this area)
http://home.comcast.net/~tfranklin5580/25p3_6.jpg

Undercar bars (picture taken during construction
http://home.comcast.net/~tfranklin5580/25p3_7.jpg

Also finished the Joe Van Overbeek Rear Wing setup and dual parachute mount...

http://home.comcast.net/~tfranklin5580/wing7.jpg
http://home.comcast.net/~tfranklin5580/wing8.jpg

venom99
06-11-2010, 06:44 PM
looks like a jungle gym of bars jk looks awsome

fuel
06-11-2010, 06:45 PM
man thats a lot of work....looking good......

358chevycamaro
06-11-2010, 09:41 PM
For the same reasons you just mentioned I just ordered the 25.3 book today (after already buying the 25.4 book) since its being built right now to give it a little added value and to save a ton of time and money down the road if I ever need that spec. It's always better to have a little more than not enough.

Looks good BTW!!

Coach 02 A3 Z/28
06-11-2010, 09:56 PM
Looking way cool.:pimp:

Coach

mustang281man
06-12-2010, 11:45 AM
does john force know you stole the cage out of his funny car? looks great. i like the way the paint looks too.

Fireball
06-13-2010, 04:16 PM
Added the wing stuff to the first post.

Firehawk441
06-13-2010, 04:26 PM
Looking good... Best of luck with it...

NINET3Z
06-14-2010, 07:55 AM
Looks great. I have a dumb question though, I thought 25.3 required rear frame rails all the way to the back. I'm going by memory, I don't have the book in front of me, I could be wrong.

Fireball
06-14-2010, 08:09 AM
There is a unibody variation listed in the spec... Says two 1 5/8" bars of any length on 6x6 plates.

NINET3Z
06-14-2010, 09:01 AM
There is a unibody variation listed in the spec... Says two 1 5/8" bars of any length on 6x6 plates.

Good. I'm planning on doing the same thing to mine (25.5 to 25.3). I don't really want to add any more than I have to. If you remove the stock floors & replace with sheet metal, does that "delete" the uni-body rule?

Fireball
06-14-2010, 09:06 AM
Good. I'm planning on doing the same thing to mine (25.5 to 25.3). I don't really want to add any more than I have to. If you remove the stock floors & replace with sheet metal, does that "delete" the uni-body rule?

yes...that variation assumed stock floors remained.

NINET3Z
06-14-2010, 09:08 AM
yes...that variation assumed stock floors remained.

Thanks, I guess I have a choice to make.

Fireball
06-28-2010, 12:02 PM
I need to verify availability, but I plan on taking the car for cage certification wednesday night.

Also, a few weeks ago I dropped off my pontiac emblem wing strut supports (that go on the bumper) to a local shop that is doing a brand new spray "chrome" process (its actually silver-based). They got the chrome part done. The next step is to leave the border and the tabs chrome and do the rest of it in a translucent red. Should look "close" to an actual pontiac emblem when finished :nod:

here is one of them after the "chrome" step

http://home.comcast.net/~tfranklin5580/wing_strut_support.jpg

they should look similar to this when done
http://www.motorvista.com/pictures/pontiac/pontiac-emblem.jpg

AChotrod
06-28-2010, 02:26 PM
Very cool!! How fast ya planning to go??

Fireball
06-28-2010, 06:46 PM
Very cool!! How fast ya planning to go??

faster than 7.99 ;)

I just picked up the finished pieces...came out sweet :nod:

http://home.comcast.net/~tfranklin5580/chrome.jpg

DMH Fabrication
06-28-2010, 06:52 PM
Looks like they came out nice! Haven't seen anyone do anything like them yet.

Phil99vette
06-28-2010, 06:56 PM
faster than 7.99 ;)

I just picked up the finished pieces...came out sweet :nod:



7.98 biatches!

Villain281H
06-28-2010, 07:36 PM
Looking good Brian; digging the pontiac touch on the supports!

Derek

Blown06
06-29-2010, 12:38 AM
Looking good Brian; digging the pontiac touch on the supports!

Derek

Me too! Very nice.

brandoz28
06-29-2010, 02:09 AM
loving the supports, just little stuff like that make the difference between a decent clean car and a great car

Fireball
06-30-2010, 06:22 AM
made my certification appt...going tuesday the 6th...

onfire
06-30-2010, 09:23 AM
Good luck Brian. Cage looks great...should pass with all the thought you've put into it.

Fireball
07-06-2010, 09:01 PM
woohoo...cage certified tonight!!!

custm2500
07-06-2010, 09:29 PM
Awesome! Looks like a ton of extra bars in the cage. I take it that is all part of the cert. process? That cage has got to weigh a ton any idea on the cage alone?

Fireball
07-07-2010, 06:15 AM
yes...almost all the bars were required by the spec. there are a few optional bars that I put in for extra precaution (didn't need them due to being unibody). Also added 3 extra gussets that weren't required by spec, but they were a good idea overall.

weighs probably 150-180lbs

we've weighed a 8pt sportsman cage and it came in at ~75lbs. this has double the bars easy.

tektrans
07-07-2010, 07:32 AM
Very nice work Brian! Car looks great!!!

BCFAB
07-12-2010, 11:42 AM
Looks good Brian. Is the wing carbon?

Fireball
07-12-2010, 11:48 AM
Looks good Brian. Is the wing carbon?

yeah...clear-coated carbon...leaving it natural

nostixs
07-12-2010, 11:53 AM
looks awesome man good luck with the project

Pro Stock John
07-13-2010, 08:05 AM
Looks awesome. What do you think your raceweight will be?

ty_ty13
07-13-2010, 09:16 AM
yes...almost all the bars were required by the spec. there are a few optional bars that I put in for extra precaution (didn't need them due to being unibody). Also added 3 extra gussets that weren't required by spec, but they were a good idea overall.

weighs probably 150-180lbs

we've weighed a 8pt sportsman cage and it came in at ~75lbs. this has double the bars easy.

uuggghhh.... crap i'm having a hard enough time as it is keeping this thing close to 3300lbs.... :(

Fireball
07-13-2010, 11:07 AM
Looks awesome. What do you think your raceweight will be?

3200lbs

BCFAB
07-14-2010, 10:20 PM
yeah...clear-coated carbon...leaving it natural

Hell yea. Thats gonna look damn good....

bad6as
07-29-2010, 10:55 PM
thats hammertone black? kinda looks gray

Fireball
07-30-2010, 05:57 AM
thats the "black"...it does come out dark grey

Dirty 30
07-30-2010, 10:45 PM
Congrats!

I have a few noob questions for you guys since you're already here... :)
At what Et/mph do you need to have a roll cage like that?
Why is the roll cage called a "25.5/25.3"?
Why is the "25.3" and upgrade to a "25.5"?
How fast can you go in the 1/4mi with a 10/12pt roll cage?

thanks :)

Broke EF
07-31-2010, 12:24 AM
Congrats!

I have a few noob questions for you guys since you're already here... :)
1. At what Et/mph do you need to have a roll cage like that?
2. Why is the roll cage called a "25.5/25.3"?
3. Why is the "25.3" and upgrade to a "25.5"?
4. How fast can you go in the 1/4mi with a 10/12pt roll cage?

thanks :)

Ill take a crack at this :)

1. 8.49 or quicker in the 1/4 will need a SFI chassis
2. The 25.5 25.3 25.2 etc is a SFI spec for a chassis/cage. They do that since it is an advanced ET and is much more complicated than a 10 point. There is actually a book for each cert.
3. I dont remember the exact difference from 25.5 to 25.3, but I think 25.3 lets you go faster with less weight than 25.5, but more weight than 25.2? I am not 100% on that, but I know 25.3 is somewhat aimed at radial racers because of they were falling between the two specs.
4. You can go 8.50 with a 10/12 point.

Hope that helps!

Sean

Dirty 30
07-31-2010, 12:30 AM
thanks! I guess i'll be going with a 10/12pt then :)

Fireball
07-31-2010, 02:47 PM
Ill take a crack at this :)

1. 8.49 or quicker in the 1/4 will need a SFI chassis
2. The 25.5 25.3 25.2 etc is a SFI spec for a chassis/cage. They do that since it is an advanced ET and is much more complicated than a 10 point. There is actually a book for each cert.
3. I dont remember the exact difference from 25.5 to 25.3, but I think 25.3 lets you go faster with less weight than 25.5, but more weight than 25.2? I am not 100% on that, but I know 25.3 is somewhat aimed at radial racers because of they were falling between the two specs.
4. You can go 8.50 with a 10/12 point.

Hope that helps!

Sean

almost correct...

25.3 lets you go 1sec faster at the same weight (3600lb max) compared to a 25.5.

25.5 is 7.50 et at 3600lb
25.3 is 6.50 et at 3600lb
25.2 is 6.00 et at 3200lb

Broke EF
07-31-2010, 03:50 PM
almost correct...

25.3 lets you go 1sec faster at the same weight (3600lb max) compared to a 25.5.

25.5 is 7.50 et at 3600lb
25.3 is 6.50 et at 3600lb
25.2 is 6.00 et at 3200lb

Well I was close :) I knew it was faster, but I thought it was a different weight. Maybe I was thinking of the weight difference between 25.2 and 25.3

Sean

Fireball
08-02-2010, 06:01 AM
Other than some paint, the floors are done. made a few patch panels welded everything in and seam sealed the joints...just another "stock floor" 25.3 :jest:

http://home.comcast.net/~tfranklin5580/floordone1.jpg
http://home.comcast.net/~tfranklin5580/floordone2.jpg

Fireball
10-26-2010, 02:19 PM
update:

thought some would like to see a pic of the finished wing installation...hatch holes are filled and the car is painted :nod:

http://home.comcast.net/~tfranklin5580/body_paint_7.jpg

SS4Luck
10-26-2010, 04:11 PM
that thing is crazy!!!!!!!!

Pro Stock John
10-26-2010, 04:20 PM
Looks hawt what color is that?

Fireball
10-26-2010, 04:21 PM
summit racing (kirker) carbon fiber metallic....decided to go cheap on the paint route since its a racecar :jest:

outtacontrolz28
10-26-2010, 04:34 PM
summit racing (kirker) carbon fiber metallic....decided to go cheap on the paint route since its a racecar :jest:

I really like that color. I saw it a while back in one of my summit mags. Car looks great man.

Where are you guys getting the books for the 25.3 cages?

Fireball
10-26-2010, 06:02 PM
http://www.sfifoundation.com/

outtacontrolz28
10-26-2010, 06:17 PM
http://www.sfifoundation.com/

Thanks Fireball :usa:

DMH Fabrication
10-26-2010, 08:42 PM
What do you still have an antenna hole on the car for?? LOL

Car looks good painted man!

DMH Fabrication
10-26-2010, 08:42 PM
What do you still have an antenna hole on the car for?? LOL

Car looks good painted man!

Fireball
10-27-2010, 05:53 AM
What do you still have an antenna hole on the car for?? LOL

Car looks good painted man!


For my radio of course :jest:

Fast_94_Z
10-27-2010, 08:34 AM
looks good man. ive been away from the site a long awhile so im glad to see your still pushing the car.

studderin
10-28-2010, 03:11 PM
looking killer

GhostofKrypton
10-29-2010, 06:05 PM
do you have to pull the motor to get the transmission out of the car?

JRracing
10-30-2010, 12:36 AM
Very nice. Looks like a lot of work.

Fireball
10-30-2010, 07:39 AM
do you have to pull the motor to get the transmission out of the car?

nope.