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8.50 to 7.50 chassis certification question #708752 05/26/10 08:51 PM 05/26/10 08:51 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	My car has factory floor, firewall and 10 point cage that is good to 8.50. Im already planning on going faster and need to explore what is going to take to cert to 7.50. Which is the easiest? 25.2 25.3 25.5 I am just tossing it around.....

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708753 05/26/10 09:23 PM 05/26/10 09:23 PM
Joined: Mar 2006 Posts: 5,067 Orlando Florida blown572dart master
blown572dart master Joined: Mar 2006 Posts: 5,067 Orlando Florida

Re: 8.50 to 7.50 chassis certification question [Re: blown572dart] #708754 05/26/10 09:48 PM 05/26/10 09:48 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708755 05/26/10 10:05 PM 05/26/10 10:05 PM
Joined: Mar 2006 Posts: 5,067 Orlando Florida blown572dart master
blown572dart master Joined: Mar 2006 Posts: 5,067 Orlando Florida	Quote: Which is the easiest? I am just tossing SALAD

Re: 8.50 to 7.50 chassis certification question [Re: blown572dart] #708756 05/26/10 10:07 PM 05/26/10 10:07 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	you sunovagun..... watch it Last edited by MR_P_BODY; 05/26/10 10:09 PM.

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708757 05/26/10 10:07 PM 05/26/10 10:07 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Sorry I dont have the book here and I cant help with the stock floor and firewall.... so its a bump

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708758 05/26/10 10:17 PM 05/26/10 10:17 PM
Joined: Feb 2006 Posts: 243 NJ A arc enthusiast
arc enthusiast A Joined: Feb 2006 Posts: 243 NJ	here is some pic 25.5 cage that i just finished http://www.facebook.com/#!/album.php?id=...4d502ccd04bccof

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708759 05/26/10 10:21 PM 05/26/10 10:21 PM
Joined: Apr 2006 Posts: 729 Lebanon,IN M mr2performance super stock
mr2performance super stock M Joined: Apr 2006 Posts: 729 Lebanon,IN	25.5, how much money you got?? Are you racing dynos again?? MR2PERFORMANCE RACE CARS 765 483 9371

Re: 8.50 to 7.50 chassis certification question [Re: mr2performance] #708760 05/26/10 10:23 PM 05/26/10 10:23 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	dannnnnggggg Mike, you dont return my call and come right out of the gate with a zinger...... what bars do i need man....think you can do it in a weekend?

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708761 05/26/10 10:24 PM 05/26/10 10:24 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	its like jimmy has to call mike just for the jokes...

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708762 05/26/10 10:37 PM 05/26/10 10:37 PM
Joined: Nov 2004 Posts: 4,330 Lynchburg, VA Leon441 master
Leon441 master Joined: Nov 2004 Posts: 4,330 Lynchburg, VA	25.4 You will have to have rocker sill bar, dash bar, forward crossmember, seat bar, doors x-ed, funny car cage, and x-in the driveshart tunnel. I think that's all. Because of the stock floor you do not have to have the diagonals under the seat. Career best 8.02 @ 169 at 3050# and 10" tires small block power.

Re: 8.50 to 7.50 chassis certification question [Re: Leon441] #708763 05/26/10 11:37 PM 05/26/10 11:37 PM
Joined: Nov 2004 Posts: 2,286 Hamilton,Ont 7 72chrgrally top fuel
72chrgrally top fuel 7 Joined: Nov 2004 Posts: 2,286 Hamilton,Ont	Is your current cage moly or mild steel? Steve Photobucket sucks

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708764 05/27/10 01:24 AM 05/27/10 01:24 AM
Joined: May 2007 Posts: 54 Illinois T Ted P member
Ted P member T Joined: May 2007 Posts: 54 Illinois	The easiest is 25.5 good to 7.50 can be chrome moly or mild steel. The other certs are 6.50@3600# for 25.3 and 6.00 @3200lbs for 25.2 and both only moly. If you're trying to do it youself go to sfi.com and buy the spec.

Re: 8.50 to 7.50 chassis certification question [Re: Ted P] #708765 05/27/10 04:08 AM 05/27/10 04:08 AM
Joined: Jan 2003 Posts: 245 regina sask N nitrousr enthusiast
nitrousr enthusiast N Joined: Jan 2003 Posts: 245 regina sask	Just got my 25.5 tag for my duster, it had a 8.50 cage but i decided to cut it out and start from scratch. A little more work in the beginning but it allowed me to fit it tighter in the car knowing i could drop it down later to weld it.

Re: 8.50 to 7.50 chassis certification question [Re: nitrousr] #708766 05/27/10 04:12 AM 05/27/10 04:12 AM
Joined: Jan 2003 Posts: 245 regina sask N nitrousr enthusiast
nitrousr enthusiast N Joined: Jan 2003 Posts: 245 regina sask	Minor trimming to the floor boards and a pic of the under car bars.

Re: 8.50 to 7.50 chassis certification question [Re: Leon441] #708767 05/27/10 02:32 PM 05/27/10 02:32 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	Quote: 25.4 You will have to have rocker sill bar, dash bar, forward crossmember, seat bar, doors x-ed, funny car cage, and x-in the driveshart tunnel. I think that's all. Because of the stock floor you do not have to have the diagonals under the seat. Mine is chrome moly. I have a dash bar, I have bars going out to the front frame rails (is that forward crossmember?) Im confused on x in the drive shaft tunnel?

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708768 05/27/10 02:44 PM 05/27/10 02:44 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Im confused on x in the drive shaft tunnel? In this pic of mine you can see the X in the tunnel area... this is to keep the frame from RACKING back and forth(the 2 rails paralleling on each other) 6006143-chassis1.jpg (2533 downloads)

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708769 05/27/10 02:54 PM 05/27/10 02:54 PM
Joined: Jan 2003 Posts: 4,101 Shelby Twp. Mi HardcoreB master
HardcoreB master Joined: Jan 2003 Posts: 4,101 Shelby Twp. Mi	Quote: ...You will have to have rocker sill bar, dash bar, forward crossmember, seat bar, doors x-ed, funny car cage, and x-in the driveshart tunnel. I think that's all. Because of the stock floor you do not have to have the diagonals under the seat. Mine is chrome moly. I have a dash bar, I have bars going out to the front frame rails (is that forward crossmember?) Im confused on x in the drive shaft tunnel? The front trans. crossmember CAN serve as your fwd. crossmember(series 6a-c)if the cage is built accordingly. The 'X' in the tunnel would go between your dimensionally legal subframe connectors possibly holding a driveshaft loop as well.

Re: 8.50 to 7.50 chassis certification question [Re: HardcoreB] #708770 05/27/10 03:27 PM 05/27/10 03:27 PM
Joined: Oct 2006 Posts: 4,590 Indy J joshking440 OP Lunch is on me!
joshking440 OP Lunch is on me! J Joined: Oct 2006 Posts: 4,590 Indy	In a 25.5 I do see where i need the trans tunnel x

Re: 8.50 to 7.50 chassis certification question [Re: joshking440] #708771 05/27/10 04:11 PM 05/27/10 04:11 PM
Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA bigtimeauto Trophy Winner
bigtimeauto Trophy Winner Joined: Jun 2007 Posts: 2,646 Plymouth Meeting, PA	with a stock firewall and floor you do not need any x bars under the car. You do need a bar from the frame connector to the sill bar behind the seat. Only the bars in the divers compartment are part of the cert. the bars going from your dash bar out under the hood do not matter. if you have a 1 5/8ths cage now you can add the funny ca cage, roof bar and gussets pretty easy. If you are going to do this yourself you should get the sfi book as it lists all of the different sizes you can use. BB, TT5,Procharged 3300lb Street Car 4.79/154

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