GT Performance Mods 2005+ Mustang GT Performance and Technical Information

Anyone taken rear seats out?....

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Old 10/29/05, 03:53 PM
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Has anyone done this? I use my seats sometimes, (well, others use them ) but if I were to take it out, what should I expect? 1/4 time? 0-60 time? Weight? Thanks!



///Chris
Old 10/29/05, 03:59 PM
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I never use my rears. Is it necessary to remove the fronts first?
Old 10/29/05, 04:03 PM
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Honestly, I don't know. I know how to fold the seats down, but haven't tried removing them. I really wonder if it will make a noticeable difference in driving/acceleration?
Old 10/29/05, 04:16 PM
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The rear seat is aprox. 40 Ibs. Every 100 Ibs lost is about 1/10 th lowered off your E/T's...It all adds up but it is a lot of work to properly lighten a car.
Old 10/29/05, 09:56 PM
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Originally posted by Vegasjay@October 29, 2005, 3:19 PM
The rear seat is aprox. 40 Ibs. Every 100 Ibs lost is about 1/10 th lowered off your E/T's...It all adds up but it is a lot of work to properly lighten a car.
I haven't even sat in them yet with the exception of cleaning the rear window but I have plans to add some weight there temporarily (bouncing) before I consider removing them . . . .
Old 10/30/05, 12:39 AM
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i had to drive mine with no rear seats between shops...no noticable difference and there was WAY more noise
Old 10/30/05, 06:59 AM
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I think that you should have a lot more weight taken out in areas that don't show before you go gutting the interior. IMO a street car that is fast appears cooler/faster when all of the interior components are remaining, otherwise wihen people look at your car they go assuming that it is closer to a gutted race car. The seat comes out easily, remove it at the track for a run or two considering your times are within .05 seconds of each other then you may notice a difference. Like Justin said weight does = increased ET, it is actually 75lbs per 1/10th of a second. IMO it is better to have the tank on fumes, like 10 miles to empty or less because gasoline weighs 6.25lbs per gallon at 72 degrees and gets heavier as it gets cooler. Weight savings, full tank = 100lbs, 1/4 tank = 25lbs, fumes = win.
Old 10/30/05, 11:14 AM
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I agree with Derek...I get so sick of going to the track and watching all the ricer's that are completely gutted w/donut's on the rear's still running 15's.... It feels good to beat them with leather seats, power windows and A/C.
Old 10/31/05, 07:39 PM
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Originally posted by GhostGT@October 29, 2005, 5:56 PM
Has anyone done this? I use my seats sometimes, (well, others use them ) but if I were to take it out, what should I expect? 1/4 time? 0-60 time? Weight? Thanks!
///Chris
I took mine out do do some sound dampening...and i thought they were super light. Can't see 40lbs...i did not weigh ..but just feels really light. I did weigh spare and jack..that weighed 36lbs! And that was alot heavier
Old 10/31/05, 07:43 PM
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Originally posted by Fman67@October 31, 2005, 8:42 PM
I took mine out do do some sound dampening...and i thought they were super light. Can't see 40lbs...i did not weigh ..but just feels really light. I did weigh spare and jack..that weighed 36lbs! And that was alot heavier
Did you have to take a front one out to get them out of the car? How are they attached?
Thanks
Old 10/31/05, 10:18 PM
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MMR makes a slick removal kit.
Old 10/31/05, 11:12 PM
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Originally posted by Mongoose@October 31, 2005, 8:46 PM
Did you have to take a front one out to get them out of the car? How are they attached?
Thanks
the bottom clips out and the uppers are attached by 3 bolts.
Old 11/1/05, 03:57 PM
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Originally posted by Vegasjay@October 29, 2005, 6:19 PM
The rear seat is aprox. 40 Ibs. Every 100 Ibs lost is about 1/10 th lowered off your E/T's...It all adds up but it is a lot of work to properly lighten a car.

I must be missing something cause I pulled out the foam cushion and it def was not more than 15 lbs. Are you all taking the seatbacks out also?
Old 11/1/05, 08:43 PM
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Originally posted by dhof303@October 30, 2005, 8:02 AM
I think that you should have a lot more weight taken out in areas that don't show before you go gutting the interior. IMO a street car that is fast appears cooler/faster when all of the interior components are remaining, otherwise wihen people look at your car they go assuming that it is closer to a gutted race car. The seat comes out easily, remove it at the track for a run or two considering your times are within .05 seconds of each other then you may notice a difference. Like Justin said weight does = increased ET, it is actually 75lbs per 1/10th of a second. IMO it is better to have the tank on fumes, like 10 miles to empty or less because gasoline weighs 6.25lbs per gallon at 72 degrees and gets heavier as it gets cooler. Weight savings, full tank = 100lbs, 1/4 tank = 25lbs, fumes = win.
Nice write-up, HOWEVER, isn't it true the car runs WORSE with low gas/fumes? I think thats reasonable, AND ive personally felt it a couple times....when my tank nears empty, i feel an IMMENSE loss in performance.
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