[thlsislt]

how much weight could you take off of the gt's? also how much would a weight reduction package or process cost? lets say a weight reduction of 500 lbs. could you even make a huge reduction like that? if you could do such a reduction how much would it improve your 1/4 mile times? if you could make reductions where would they be and what would they be?

[B0B]

with an 05 plus gt if you want to keep it a driver you cant do much.. take out rear seat, a/c and spart tire/jack. if you want to make it a full out race car then we're talking another story and you could probably shed 300+ pounds

[Alexander III]

Well you could pony up and get a one piece fiber glass body and completely gut the interior of the car. Just a suggestion...

No really though. When you are cutting a cars weight you have to be careful because you will throw off the weight balance of the car, and screw up you handling.
But lets say just for an example the spare tire weighs 100 lbs. and the A/C unit ways 100 lbs. They both are located at equal opposite ends and most likely will not through off the cars balance.

[killermach1]

Ok major weight reduction (as I see it):
1. BMR (or other) tubular K member (loss of 20 lbs) up to 34lb loss if you get the whole front end kit from BMR
2. Spyder Shaft (loss of 30 ish lbs)
3. Rear Seat Delete (loss of 20-30 lbs) more if you remove the seat belt mecinism and hardware.
4. Corbeau FX1 Pro seats 16 lbs a piece (loss of 30 ish lbs)
5. Steeda Race Hood (9 lb loss) lighter if you go carbon fiber
6. Light Weight Forged wheels (I would say the max you could loose is like 10 lbs a wheel for a total of 40lbs) ultra lite forged wheels are pricey though Enkei and SSR are some of the lightest, in the neighborhood of 17lbs a piece for an 18 in wheel.
7. Drop the spare tire get some run flats(loss of 30-50 pounds)
8. New exhaust especially the mid pipe if you go off road you will drop some weight. Some people may not agree with this but the factory exhaust is a beast compared to an aftermarket exhaust (loss of at best 10 lbs)

That's about it if the car is a daily driver, you could drop more if you removed all the carpet and sound deadning material, radio, speakers, door panels, Air conditioning, etc. So if money is not an issue then you could probibly drop a little over 200 lbs with the above reccomendations.

[07stanggt]

How much would it improve 1/4 mile i dont know. But i have been told by some people who race cars that you figure 10hp per 100plbs so if you could drop 500 it would be like adding 50hp to the wheels. their has to be some variables to that though. the grand am and gt race stangs weigh 3100 i think. that is only a driver seat, no ac, no spare, no nothing inside the car. but i guess they have other components that are heavier, tires, bigger brakes, engine.

[07stanggt]

Originally Posted by killermach1 Ok major weight reduction (as I see it): 1. BMR (or other) tubular K member (loss of 20 lbs) up to 34lb loss if you get the whole front end kit from BMR 2. Spyder Shaft (loss of 30 ish lbs) 3. Rear Seat Delete (loss of 20-30 lbs) more if you remove the seat belt mecinism and hardware. 4. Corbeau FX1 Pro seats 16 lbs a piece (loss of 30 ish lbs) 5. Steeda Race Hood (9 lb loss) lighter if you go carbon fiber 6. Light Weight Forged wheels (I would say the max you could loose is like 10 lbs a wheel for a total of 40lbs) ultra lite forged wheels are pricey though Enkei and SSR are some of the lightest, in the neighborhood of 17lbs a piece for an 18 in wheel. 7. Drop the spare tire get some run flats(loss of 30-50 pounds) 8. New exhaust especially the mid pipe if you go off road you will drop some weight. Some people may not agree with this but the factory exhaust is a beast compared to an aftermarket exhaust (loss of at best 10 lbs) That's about it if the car is a daily driver, you could drop more if you removed all the carpet and sound deadning material, radio, speakers, door panels, Air conditioning, etc. So if money is not an issue then you could probibly drop a little over 200 lbs with the above reccomendations.

sound deadning material??? I didnt think this car had any of that to begin with,

[forensicsteve]

I haven't weighed the track wheels/tires but they are very light. Pick one up with one hand. I am going to much lighter seats. Nothing fancy, just to get away from the heavy motorized stockers. Rear seats are gone but they didn't weigh much. Don't know how much 8 pt rollbar weighed but it certainly added weight back to the car. Moved the battery to the trunk to shift 40-50 lbs from front of car to over rear axle where it might help to plant rearend some. Overall, as other have said, it is very hard to shed weight on this car. Not
quite ready to give up a/c, although much of the interior is gutted already.

[KenDogg]

steve how much hp does your beast have with a 20#turbo?

[flattusmaximus78]

Originally Posted by 07stanggt How much would it improve 1/4 mile i dont know. But i have been told by some people who race cars that you figure 10hp per 100plbs so if you could drop 500 it would be like adding 50hp to the wheels. their has to be some variables to that though. the grand am and gt race stangs weigh 3100 i think. that is only a driver seat, no ac, no spare, no nothing inside the car. but i guess they have other components that are heavier, tires, bigger brakes, engine.

huh?

[07stanggt]

Originally Posted by flattusmaximus78 huh?

What part are you saying huh too?

[07stanggt]

he ask how much a 500plb weight reduction would reduce is 1/4 mile time. Im saying i dont know but from what i understand it would be like adding 50hp, what would 50hp do to 1/4 mile time.

[forensicsteve]

Morning KennDogg

how much hp does your beast have with a 20#turbo

64,000 dollar question. Heads/cams in California, race transmission being upgraded (to handle 1000+ hp) and adjusted in Long Island. Block is being installed (rated at 950 rwhp). Everything should come together for about 1st-2nd week in January. Then off to the dyno with C16 gas.

It is a 20lb 67mm Garrett turbo but in reality, I think it will peak in efficiency at closer to 18 lbs. This particular turbo is rated at 780 crank hp, so I'm guessing with the stroker, head work, 118 octane, upgraded fuel rails, PMAS maf (maf extender that won't peg)... maybe 650 rear wheel hp...maybe a touch more??? Torque could be higher though, maybe in the 700 rear wheel range because of the multiplication factor with race tranny and torque converter. Been waiting a long time to find out...lol. Then if all works well, off to the track.

[psycho bob]

basic method that will be close is a tenth of a second for every 100 lbs lost.

[thlsislt]

holy shit, you guys are crazy fast on the replies. that is cool. the question came up because i was arguing with this kid and i told him that i wanted to get a new stang gt. and then we got in the endless debate of power to weight ratio. he thinks that i should keep my scion tc and get it to approx. 400 hp and it will be faster and better handling then a mustang gt with boost to make around 650 hp.

what do you think?

i know this is a mustang forum so i'm already waiting to see a landslide to one side.

[HMUSN]

fwd = NO TQ

mustang wins

[07stanggt]

Your choice is between a scion tc and a stang. I dont think i can give a sincere answer my friend.

i would think dollar for dollar the stang will always outrun a scion.

Tell your freind a bugatti veyvron 16.4 weighs 4160plbs and puts 1001hp to the ground that is 4.16plbs per hp. It will out accerelerate a Yamaha R1 which weighs 380plbs. and puts about 180hp to the ground which is 2.1plb per hp.

There are other variables in speed than power to weight.

[06RedfireGT]

Mustang > Scion

RWD > FWD

USA > Jap

V8 > 4 banger

Need I keep going?

Dollar for dollar the STang will always be faster than the Scion.

[killermach1]

Dude with the money you would have to spend to get a Scion to 400+ hp there is no comparo. Forget weight reduction, get a GT throw a good suspension with LCA Relocation Brackets, Billet LCAs, get some wider wheels with some drag radials. At that point you would be launching like a sumbitch, if you want more get a supercharger and hang on. Spend the same money on the GT and you'll be happier in the long run.

[07stanggt]

Originally Posted by killermach1 Dude with the money you would have to spend to get a Scion to 400+ hp there is no comparo. Forget weight reduction, get a GT throw a good suspension with LCA Relocation Brackets, Billet LCAs, get some wider wheels with some drag radials. At that point you would be launching like a sumbitch, if you want more get a supercharger and hang on. Spend the same money on the GT and you'll be happier in the long run.

+1

We agree

[thlsislt]

yeah. the gt's have a better price for the performance with a crazy amount of performance parts available. plus at stock the car is faster, and the mpg aren't that far off from the tc's.