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4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

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Old 07-12-2013, 01:32 AM   #1
Mr 04 Cobra Stang
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Default mpg before and after, please help !

Im buying a 2004 cobra mustang supercharged how much gas can the tank hold?

Later im putting in a whipple supercharged motor how much mpg will it have?

a month or 2 after that im installing twin turbos so i will have a whipple supercharged motor and twin turbo, how much mpg will it be? and how much gas can the tank hold?
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Old 07-12-2013, 05:55 AM   #2
JC316
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You're talking about a compound boost setup on a 15K+ car and you're worried about MPG? Stock tank is 15.7 gallons. MPG should be pretty danged dismal, especially if you intend to have fun with the car.
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Old 07-12-2013, 07:22 AM   #3
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You're going to run twins into a whipple? What is it you hope to accomplish? Aside from a very hot intake air charge.
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Old 07-12-2013, 07:33 AM   #4
Soldier GT
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Quote:
Originally Posted by JC316 View Post
You're talking about a compound boost setup on a 15K+ car and you're worried about MPG? Stock tank is 15.7 gallons. MPG should be pretty danged dismal, especially if you intend to have fun with the car.

You beat me to it..
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Old 07-12-2013, 07:49 AM   #5
99 GT vert
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Quote:
Originally Posted by Mr 04 Cobra Stang View Post
Im buying a 2004 cobra mustang supercharged how much gas can the tank hold?

Later im putting in a whipple supercharged motor how much mpg will it have?

a month or 2 after that im installing twin turbos so i will have a whipple supercharged motor and twin turbo, how much mpg will it be? and how much gas can the tank hold?

ok first off you are wasting your money going compound boost plain and simple you will have 3500+ in the blower and 7-9k in the twin turbo kit. what is your goal with the compound boost setup? high horsepower or just to say you have a compound boosted car? take the money that you were going to buy the whipple with and put it into a good set of pistons and rods because the twin turbo kit will more than max out your motor if you up the boost. and then take the rest and have the heads ported with a set of cams and a ported intake manifold or custom sheet metal intake made. if you decide to stick with your plans of doing compound boost i would plan on getting atleast a 3.4 whipple or bigger because down low you will start the blower due to the turbos not spooling up restricting it and then in the high rpms the blower will restrict the boost from the turbos with anything smaller than a 3.4. i have looked into this before i twin turboed my car and compound boost is not worth it
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Old 07-12-2013, 07:59 AM   #6
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#TROLL
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Old 07-12-2013, 08:28 AM   #7
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Some noobler that must of just caught an episode of street outlaws and things he gonna have a 1500hp street car
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Old 07-12-2013, 08:35 AM   #8
JJ Glo
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Joins yesterday, makes this his first thread. Try harder troll.
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Old 07-14-2013, 01:55 AM   #9
Sonic Mustang
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Quote:
Originally Posted by Mr 04 Cobra Stang View Post
Im buying a 2004 cobra mustang supercharged how much gas can the tank hold?

Later im putting in a whipple supercharged motor how much mpg will it have?

a month or 2 after that im installing twin turbos so i will have a whipple supercharged motor and twin turbo, how much mpg will it be? and how much gas can the tank hold?
He's not a troll. Come on, you guys, he just wants to know what effect a whipple supercharger and twin turbos have on gasoline tank capacity.

I know I lost 1.5 gallons capacity after installing my caster/camber plates and my LCAs knocked off another .5. When you take into account the .8 gallon gain the Mach 1 Shaker adds, I'm currently at 14.5 gallons.

If those twin turbos feed into the fuel tank, he's gonna lose a good three gallons.

Last edited by Sonic Mustang; 07-14-2013 at 01:58 AM.
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