What is the largest fuel tank one could conceivably put into an HX or VX civic?
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B*a*n*n*e*d
Joined: Mar 2008
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From: Bay Area, CA, USA
What is the largest fuel tank one could conceivably put into an HX or VX civic?
I was wondering how big could you go in terms of size of a fuel tank for a honda civic VX or HX. From what I know, they have a 11.9 gallon tank and I was thinking that maybe one could put a 25 gallon tank in there, but I have no idea. Is this possible? When auto manufacturers design their vehicles, do they leave space for another and or larger tank, do they maximize space or do they simply put a tank that would yeild a reasonable # of miles per tank?
I've noticed the vehicles that get worse mileage generally have larger tanks in order to make them feasible and ones with better mileage get smaller tanks.
Also has anyone ever driven from NY, NY to Miami, FL? I was also thinking about SF, CA to Phoenix, AZ. It would seem like a good conversation peice, talking about how you drove there on a single tank.
I've noticed the vehicles that get worse mileage generally have larger tanks in order to make them feasible and ones with better mileage get smaller tanks.
Also has anyone ever driven from NY, NY to Miami, FL? I was also thinking about SF, CA to Phoenix, AZ. It would seem like a good conversation peice, talking about how you drove there on a single tank.
Re: What is the largest fuel tank one could conceivably put into an HX or VX civic? (imzjustplayin)
we had a suburban back in the day and we could drive from so ill to southern GA and halfway back on a tank of gas. 
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Re: What is the largest fuel tank one could conceivably put into an HX or VX civic? (skittle_107)
i drive around 20 miles a day and i put 10 dollars in sometime last week....then again, im still rockin my d15b8.
to answer the question asked.
i doubt you will be able to fit a much larger tank in there without having to do some major custom work. they easiest way to get a larger tank would be of course to get a aftermarket fuel cell and put it in the hatch. most fuel tanks are desgined to fit up under the car without much room for a larger one. but with enough money anything is possible. and i do like the idea of a larger tank but would hate to spend more at once then i already do.
i doubt you will be able to fit a much larger tank in there without having to do some major custom work. they easiest way to get a larger tank would be of course to get a aftermarket fuel cell and put it in the hatch. most fuel tanks are desgined to fit up under the car without much room for a larger one. but with enough money anything is possible. and i do like the idea of a larger tank but would hate to spend more at once then i already do.
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Joined: Feb 2003
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From: Beware Of Perverts
There was a rumor awhile ago that CRV tanks fit 96+ civics... I never really read into it...
As said, the best way would probably to add a fuel cell to the trunk. You could simply connect it to the factory tank via gravity feed.
A 10 gallon cell would give you 21.9 total gallons.
Keep in mind, the more fuel you add, the more weight youre lugging around.
For comparison, a gallon of water weighs around 8bls - gas is probably closer to 9lbs/gallon (this is a guess) So youre looking at adding more than 100lbs of weight to the back of a little VX hatch (after cell and fuel).
And its not solid weight, but liquid, which moves and has variable momentum - so it technically weighs even more at starts and stops...
Think about that when youre looking at the fuel economy aspect of this. You will lose some mpg
As said, the best way would probably to add a fuel cell to the trunk. You could simply connect it to the factory tank via gravity feed.
A 10 gallon cell would give you 21.9 total gallons.
Keep in mind, the more fuel you add, the more weight youre lugging around.
For comparison, a gallon of water weighs around 8bls - gas is probably closer to 9lbs/gallon (this is a guess) So youre looking at adding more than 100lbs of weight to the back of a little VX hatch (after cell and fuel).
And its not solid weight, but liquid, which moves and has variable momentum - so it technically weighs even more at starts and stops...
Think about that when youre looking at the fuel economy aspect of this. You will lose some mpg
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Joined: Jan 2006
Posts: 10,443
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From: Rochester, New York -> Santa Clara, CA
Re: (pdiggitydogg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pdiggitydogg »</TD></TR><TR><TD CLASS="quote">There was a rumor awhile ago that CRV tanks fit 96+ civics... I never really read into it...
As said, the best way would probably to add a fuel cell to the trunk. You could simply connect it to the factory tank via gravity feed.
A 10 gallon cell would give you 21.9 total gallons.
Keep in mind, the more fuel you add, the more weight youre lugging around.
For comparison, a gallon of water weighs around 8bls - gas is probably closer to 9lbs/gallon (this is a guess) So youre looking at adding more than 100lbs of weight to the back of a little VX hatch (after cell and fuel).
And its not solid weight, but liquid, which moves and has variable momentum - so it technically weighs even more at starts and stops...
Think about that when youre looking at the fuel economy aspect of this. You will lose some mpg</TD></TR></TABLE>
It does have variable momentum, as last time I checked momentum was a resultant of velocity and mass, but it won't "weigh" more at start or at stop, BUT, you will have a higher moment of inertia due to the added weight which will make it harder to take off. Though I hate physics, so whatever.
@ OP:
On the flipside, do you actually realize how big a 25 gallon tank is? A V10 8.3L Dodge Viper only has an 18.5 gallon fuel tank, and a camaro only had a ~14 gallon fuel tank. A big *** gas guzzling V8 Toyota Tundra has a 26.5L fuel tank.
I'm not sure you thought through the magnitude of the tank you want to put in there, with obviously the first factor being that there isn't a lot of room to begin with and you're planning on putting over double the size in there.
Though if you use the Miami to Florida example, your best bet would to do what pdiggitydogg said, but pulling ~60 mpg with 142lbs (plus the cell itself) of extra dead weight?
Not that I don't think it's an interesting idea, but if you're going all best fuel economy, your best bet would to be to keep your stock tank and fill up half way.
I don't know, it just seems to me like you're spending more money for lower fuel economy (and nothing more) for more bragging rights.
Doesn't seem like you're winning, just my opinion though.
I mean try to sell that deal to somebody:
"You can waste money on a DOT approved fuel cell & get less economy on the road due to the added weight, BUT you'll have the bragging rights of making it on one tank of gas."
-- Or --
You can not spend a cent, keep what you have, and get better fuel economy.
I don't know, maybe I'm biased because I don't like wasting money, but that's my take on it. Besides, if you feel like throwing away money you can always throw some my way.
As said, the best way would probably to add a fuel cell to the trunk. You could simply connect it to the factory tank via gravity feed.
A 10 gallon cell would give you 21.9 total gallons.
Keep in mind, the more fuel you add, the more weight youre lugging around.
For comparison, a gallon of water weighs around 8bls - gas is probably closer to 9lbs/gallon (this is a guess) So youre looking at adding more than 100lbs of weight to the back of a little VX hatch (after cell and fuel).
And its not solid weight, but liquid, which moves and has variable momentum - so it technically weighs even more at starts and stops...
Think about that when youre looking at the fuel economy aspect of this. You will lose some mpg</TD></TR></TABLE>
It does have variable momentum, as last time I checked momentum was a resultant of velocity and mass, but it won't "weigh" more at start or at stop, BUT, you will have a higher moment of inertia due to the added weight which will make it harder to take off. Though I hate physics, so whatever.
@ OP:
On the flipside, do you actually realize how big a 25 gallon tank is? A V10 8.3L Dodge Viper only has an 18.5 gallon fuel tank, and a camaro only had a ~14 gallon fuel tank. A big *** gas guzzling V8 Toyota Tundra has a 26.5L fuel tank.
I'm not sure you thought through the magnitude of the tank you want to put in there, with obviously the first factor being that there isn't a lot of room to begin with and you're planning on putting over double the size in there.
Though if you use the Miami to Florida example, your best bet would to do what pdiggitydogg said, but pulling ~60 mpg with 142lbs (plus the cell itself) of extra dead weight?
Not that I don't think it's an interesting idea, but if you're going all best fuel economy, your best bet would to be to keep your stock tank and fill up half way.
I don't know, it just seems to me like you're spending more money for lower fuel economy (and nothing more) for more bragging rights.
Doesn't seem like you're winning, just my opinion though.
I mean try to sell that deal to somebody:
"You can waste money on a DOT approved fuel cell & get less economy on the road due to the added weight, BUT you'll have the bragging rights of making it on one tank of gas."
-- Or --
You can not spend a cent, keep what you have, and get better fuel economy.
I don't know, maybe I'm biased because I don't like wasting money, but that's my take on it. Besides, if you feel like throwing away money you can always throw some my way.
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Joined: Feb 2003
Posts: 12,831
Likes: 8
From: Beware Of Perverts
Re: (Syndacate)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate »</TD></TR><TR><TD CLASS="quote">
It does have variable momentum, as last time I checked momentum was a resultant of velocity and mass, but it won't "weigh" more at start or at stop, BUT, you will have a higher moment of inertia due to the added weight which will make it harder to take off. Though I hate physics, so whatever.
</TD></TR></TABLE>
Right, I was referring to weight as a generalized force, not physical mass weight. The momentum changes its force/weight applied to the car
It does have variable momentum, as last time I checked momentum was a resultant of velocity and mass, but it won't "weigh" more at start or at stop, BUT, you will have a higher moment of inertia due to the added weight which will make it harder to take off. Though I hate physics, so whatever.
</TD></TR></TABLE>
Right, I was referring to weight as a generalized force, not physical mass weight. The momentum changes its force/weight applied to the car
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