Fuel cut out on long corners

[CincinnatiKid]

Alright after a track day this weekend I'm sick of this, one longish highspeed corner (60-70) and a gas tank between 1/4 and 1/2 a tank causes my engine to cut out from all the gas going to one side, not being picked up by the pump, does anybody have a remedy for this problem on the track?

[xwill112x]

fill your gas tank up more

[36brua]

Alright after a track day this weekend I'm sick of this, one longish highspeed corner (60-70) and a gas tank between 1/4 and 1/2 a tank causes my engine to cut out from all the gas going to one side, not being picked up by the pump, does anybody have a remedy for this problem on the track?

search for jlevie post or pm him to find his write up to cure this fuel starvation ?. I think he posted here and on spec e30 forum

[team9]

^ Here ya go

http://www.r3vlimited.com/board/showthread.php?t=157887

[kronus]

Isn't the early model fuel tank more resistant to stuff like this? Try switching to a dual pump setup?

[Massive Lee]

anti-surge tank

[Jean]

anti-surge tank

yes, iirc ireland engineering makes one around fifty bucks.

SKU - e30fuelacc $55

http://store.nexternal.com/shared/St...&Count2=678658


"E30's have fuel starvation problems when driven hard. Some cars begin to exibit this problem just below 1/2 tank. This can ruin your day and damage your engine. There are a number of complicated and/or expensive solutions. However, we have discovered a cheap and easy solution. By using a small (about a pint) accumulator which receives fuel from the return line and directs it to the fuel pump the starvation problem is eliminated. This system requires the car have 2 pump system with the in tank supply pump.
"

[Massive Lee]

I made some surge tanks for racers last year. They are about 1 litre. And I swear, we were able to run on an almost dry fuel tank. As long as there's fuel remaining in the surge tank, the car can go and go and go... The first pump fills up the surge tank, and the excess returns to the main tank. The second pump is fed from the surge tank. 1 litre of fuel is burnt every minute at full throttle. Meaning that the first pump can run dry for a full minute until the surge tank is empty...

[rThor432]

^^Impressive! Good info.

[Massive Lee]

BTW IE's accumulator is an... Audi off-the-shelf part.

[Jean]

Lol....got a pn? I can see if I can get it cheaper locally :)

[Massive Lee]

That's a pretty old trick from 20 years ago. Basically one small cylinder with one inlet (from the fuel rail) and two outlets (one feeding the main pump, and one for excess fuel back to the tank). It doesn't work as well as a full size surgetank, but surely a good safety measure for most of us because the main pump is fed by the tank AND the fuel return.

[CincinnatiKid]

Awesome info guys, I didn't know there were so many solutions.

[Hick]

ive got a fuel accumulator that i never used. PM me

Also, i had this problem on a 318is. turned out that the filter screen fell off the pump, allowing it to move aorund in the tank. may want to check that.

[Massive Lee]

Hey Joel, would mind posting a picture of the accumulator. I am curious to see to what car it belongs. Should be from a 1982-1990 Audi but not sure.