I Race On A 5th Mile Track In Ventura California And I Am Having Issues. After I Run Around 5 Laps At 6400 Rpm It Acts Like I Run Out Of Fuel. I Push The Clutch In And After The Rpms Die Down It Acts Like There Is No Problem At All. We Have Cleaned Out The Fuel Filter Increased The Fuel Pump To 60 Psi And Replaced The Return Line To The Fuel Cell With A Larger Diameter And Changed The Ecu. We Were Told By Acura That They Very Rarely Sell Fuel Regulaters. Any Suggestions ????

David Peterson

 

Fuel Starvation? Try running on at least 1/2 to full tank of gas.

 

The tank was full in the main event and it happened 5 times.

 

It's either spark or squirt.

How old is the distributor?
Are you still running on the car's original injectors?

If the injectors are 14 years old and being run at max duty cycle most of the time, they may very well be crapping out.

 

Hmmm, considering what you have done to the fuel system already I would be looking at spark. Changed the wires recently?

Have you pulled a plug after hot lapping? I'm no expert, but if you are running lean/rich or pulling too little/too much spark sometimes "reading the plugs" will tell you.

Also, switching to a cooler plug considering the extended high rev conditions may be in order.

Is she keeping medium water temps after multiple laps?

 

Is it possible that the fuel pump could actually be failing?

 

We Have Tried A 45 Psi And Then Switched To A 60+ Psi, Both Times Same Result. The Car Has New Plug Wires And Plugs. We Are Going To Switch The Fuel Injectors And Fuel Regulater This Weekend.

 

I would consider swapping to a racing fuel cell after this. The gas tank could very well be tossing fuel to one side when you hit turns and what not which is going to channel fuel away from where it needs to be to get sucked up by the fuel pump. If it does not get a chance to settle you just have an ocean going back in forth inside the stock tank which will affect performance.

 

It Has A Racing Cell With Foam Inside To Prevent Sloshing. We Are Going To Inspect The Pick Up Hose. I Hope It Something Simple Like That.
Dave

 

It may be just that as well. It sounds like your going to find the problem though. There is not very many places this issue can lie and it sounds like you have been through most of them. Good luck and let us know it goes.