It's completely different..... If you do a ration, then the weight of a car with gas compared to the weight of a man with 10 bricks is completely different.

I don't really care how much gas I have in my tank, I burn it all in 10 minutes anyways

 

A full tank of gas does not slosh.

 

True.



It is when the fuel has room to move. If you have a full tank, then there will be no motion, or very limited. its when 12-13 gallons tries to make its way at full speed from side to another that you may feel it.

However, I would bet your tire pressures are off, and its not really the fuel making the largest difference.

 

Just run 1/8 tank and stop every 10 miles and fill it back up to the 1/8 mark....

next...




Later

 

hyperion's fuel starvation cover is epic, I can run at the track until the fuel tank touches the empty line without issue ^_^.

thewird

 

^^^ I dont believe!

I knew the fuel tank fix would be mentioned. I thought all the fuel tank did was HELP with fuel starvation when lower than 1/4 of a tank not REMEDY the problem. My impression was that the cover helps when your at 1/4 but once you go below you will have problems with starvation again. Is this not true?

 

Can't say Ive noticed a performance difference in fuel tank level. I have my car corner-weighted with 3/4 tank of gas. When I autox I typically have the gas between there and a full tank and will never let it go below 2/3 of a tank. I've experienced bucking from fuel slosh below 2/3rds during the wide left hand sweepers.

 

Believe what you want, I've been at empty before going all out with zero fuel starvation. After I left the track to go home within 15 minutes the empty light came on so even if the float reading was incorrect the light coming on verified it since its off a different sensor. It basically creates a mini fuel cell inside your tank where the pump pickup is.

thewird

 

Yep. Me too.

I've been almost at Empty with it w/o any starvation on track. This was Sat at Thunderhill and it wasn't the first time.

 

Maybe you're leaning out and making more power.

You can never be too paranoid. hehe

 

Hmmm interesting...

I want to buy the cover but wasn't sure if it would make a difference for street driving reliability. If it does help in the case where your gas is lower than 1/4 I think its definitely worth it. Based on how I thought the cover worked, I thought it just trapped some gas for the car to use on left turns. If your running on almost empty, I imagine that the trapped gas would be used first before whats left in the tank and your scenario would not be possible. If your right though thats pretty neat. I wonder if the last generation tanks (the larger ones) had this problem.

 

Re: not seeing fuel starvation, yes it's possible to make high-g left hand turns without starving. The cup surrounding the fuel pump pickup is doing it's job.

The problem as I understand it is that if the turn is long enough, and the lateral g's are high enough, it will push the fuel out of that cup and starve. Not all tracks and drivers will get to that point.

Dave

 

I've experienced this before... now I always keep more than a 1/4 tank.

 

i got the fuel surge cover, i mostly street drive, i got it just in case, you never know what could happen