how full should the gas tank be at the track?

**greatwhiteZ28** · 09-30-2007, 04:38 PM

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

but is that really a factor

**Rikki_SeVeN** · 09-30-2007, 05:10 PM

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...

**greatwhiteZ28** · 09-30-2007, 05:19 PM

thats what i was talking about, all the wieght on the back for the start, and some what for wieght savings

**Rikki_SeVeN** · 09-30-2007, 05:21 PM

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

**greatwhiteZ28** · 09-30-2007, 06:47 PM

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

**00maroz28** · 09-30-2007, 07:06 PM

i usually go with between a 1/4 and 1/2 tank.. cause of weight, then just gas up on the way home

**LS2Tuner** · 09-30-2007, 11:42 PM

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.

**DanWS6** · 10-02-2007, 09:04 PM

huh

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

**BLKCLOUD** · 10-03-2007, 01:34 AM

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.

**Rikki_SeVeN** · 10-03-2007, 03:25 AM

Originally Posted by BLKCLOUD

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...?

**LS2Tuner** · 10-03-2007, 08:25 AM

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.....

**BLKCLOUD** · 10-03-2007, 02:14 PM

Originally Posted by Rikki_SeVeN

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.

Originally Posted by LS2Tuner

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....

Originally Posted by BLKCLOUD

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.

**Rikki_SeVeN** · 10-03-2007, 02:16 PM

Originally Posted by BLKCLOUD

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

AMEN to that...!

**LS2Tuner** · 10-03-2007, 02:19 PM

Originally Posted by BLKCLOUD

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

**BLKCLOUD** · 10-03-2007, 02:56 PM

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.

**LS2Tuner** · 10-03-2007, 03:16 PM

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!

**BLKCLOUD** · 10-03-2007, 03:37 PM

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.