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how full should the gas tank be at the track?

This is a discussion on how full should the gas tank be at the track? within the Drag Racing forums, part of the Racing Forums category; well i went with a full tank bc i filled up the night before. but is that really a factor...

  1. #1
    Senior Member greatwhiteZ28's Avatar
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    how full should the gas tank be at the track?

    well i went with a full tank bc i filled up the night before.

    but is that really a factor

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    Puerto Rico LS1 Rikki_SeVeN's Avatar
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    I don't know about GAS... but... Water weighs like 7lbs per Gallon... it's a 16.6Gallon tank... so... that's what... 116lbs on a full tank...


    Pesronally I usually take it with maybe 3/4's of a tank... just to not have that excuse in the back of my head..."but it was a full tank"... plus... you need some weight back there for a good Launch...

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    Senior Member greatwhiteZ28's Avatar
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    thats what i was talking about, all the wieght on the back for the start, and some what for wieght savings

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    Puerto Rico LS1 Rikki_SeVeN's Avatar
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    yep... I actually have never even tried Removing Back seat, Spare Tire/Jack... and such... it might not do anything... then again it might even just spin like hell

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    Senior Member greatwhiteZ28's Avatar
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    the back seat aint that heavy, its all modeld and such but the jack and spare might help out.

    but that is another myth i heard of leaving in bc its the right rear for transer.LOL

    but weight lose is still best soo, i guesss what ever works in each set up

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    ChEvY RiDiN' H.B. 00maroz28's Avatar
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    i usually go with between a 1/4 and 1/2 tank.. cause of weight, then just gas up on the way home

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    Nitrous Tuner LS2Tuner's Avatar
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    A 100 lbs loss only gains you a tenth of a second!!
    So yes a full tank is well worth the weight to gain in the intial 60 feet.
    Don't be afraid of the bottle!!! Be afraid of your tune!!!

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    huh

    I always run at about 1/4 tank. Might try 1/2 tank tomorrow to see what that does for me.

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    Senior Member BLKCLOUD's Avatar
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    If you have traction problems, and that extra weight helps with traction, then it *might* be worth having more gas. However, if you can hook the car, run with as little gas as possible.

    FYI...gas weighs 6.2 lbs per gallon. I typically run with 1/8th to 1/4 of a tank.

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    Puerto Rico LS1 Rikki_SeVeN's Avatar
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    Quote Originally Posted by BLKCLOUD View Post
    FYI...gas weighs 6.2 lbs per gallon. I typically run with 1/8th to 1/4 of a tank.
    Thanks for the correction!... I never know how much gas weight... hehe...


    doesn't runnin with that little amount of gas... lean out the mix...(in a untuned car)...for fuel millage...?

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    Nitrous Tuner LS2Tuner's Avatar
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    Like stated before...... A 100 lbs loss only gains a tenth of a second.
    The added weight is right where you want it! You can leave harder with the added weight transfer. So I must disagree with the post about running as low as you can. That is about as productive as taking off you door panels for the weight reduction.....

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    Senior Member BLKCLOUD's Avatar
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    Quote Originally Posted by Rikki_SeVeN View Post
    doesn't runnin with that little amount of gas... lean out the mix...(in a untuned car)...for fuel millage...?
    No. So long as there is fuel covering the pickup, then you're fine.

    Quote Originally Posted by LS2Tuner View Post
    Like stated before...... A 100 lbs loss only gains a tenth of a second.
    The added weight is right where you want it! You can leave harder with the added weight transfer. So I must disagree with the post about running as low as you can. That is about as productive as taking off you door panels for the weight reduction.....
    Let me highlight parts of my post that you likely missed, so that you might read it again and understand....this time....

    Quote Originally Posted by BLKCLOUD View Post
    If you have traction problems, and that extra weight helps with traction, then it *might* be worth having more gas. However, if you can hook the car, run with as little gas as possible.
    Note the part about "if you have traction problems". One could thus deduce that if you do not have traction problems, then the extra weight - even in the rear - is only slowing you down.

    Once again.....reader beware of the advice you get on the internet from those that claim to know more than they really do.

    Bob

    PS...in drag racing....at least in real drag racing....a tenth of a second is an eternity.

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    Puerto Rico LS1 Rikki_SeVeN's Avatar
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    Quote Originally Posted by BLKCLOUD View Post
    PS...in drag racing....at least in real drag racing....a tenth of a second is an eternity.
    AMEN to that...!

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    Nitrous Tuner LS2Tuner's Avatar
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    Quote Originally Posted by BLKCLOUD View Post
    No. So long as there is fuel covering the pickup, then you're fine.



    Let me highlight parts of my post that you likely missed, so that you might read it again and understand....this time....



    Note the part about "if you have traction problems". One could thus deduce that if you do not have traction problems, then the extra weight - even in the rear - is only slowing you down.

    Once again.....reader beware of the advice you get on the internet from those that claim to know more than they really do.

    Bob

    PS...in drag racing....at least in real drag racing....a tenth of a second is an eternity.
    Yeah I guess it is when you go 12's huh. LOL

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    Senior Member BLKCLOUD's Avatar
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    Actually, a tenth is a far bigger deal when you run faster than 12s than when you run 12s or slower.

    But I'm sure you knew that.

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    Nitrous Tuner LS2Tuner's Avatar
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    Well we have horsepower to spare regardless of what class we run. So we add ballast to slow our cars down NOT loose weight to gain et's.
    You already knew that though.
    But I know your running heads up classes right!

  17. #17
    Senior Member BLKCLOUD's Avatar
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    Yup. But we have minimum weights, so I have (had) weight bars in the rear. Given that we also had to run a spec fuel (at $7 per gallon), a one-time weight bar setup made a lot more sense.

    However, none of that applies to the post in question, given that he is running neither an index/brackets (like you) nor a heads-up class.

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    Senior Member greatwhiteZ28's Avatar
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    thats not true next sun ill be in my first LEGAL bracket race LOL but i do apprieiacte all of your help guys

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