Stalling under hard accleration

Topic: Stalling under hard accleration (Read 2364 times) previous topic - next topic

Stalling under hard accleration

June 20, 2007, 11:45:17 PM

Well I have another problem :D . I noticed today when I had the T-bird out that it'll stall when floored with 1/2 tank of gas from a stop. When the car noses over it picks up again and acclerates hard. It doesn't do this with 3/4 tank or above though. It just pulls so hard that the gas sloshes away from the pick up for the fuel pump. I've got the right *sock* on and it runs fine otherwise. I just wanted to check it to see what would happen before I took it to the track. I know other people have had this problem and I was just wondering if there is any way to correct it besides running down the track with 3/4 tank or more of gas:hick:

Stalling under hard accleration

Reply #1 – June 20, 2007, 11:59:18 PM

Mine is the same way, have to run a full tank of gas, poor design from Ford.

Don't know an easy or cheap solution. Just be glad you have that much torque to cause you a problem, a lot of people here with a V-6 don't know what we are talking about.

Rear pick-up on the stock tank or a fuel cell is the solution.

I have also been thinking about putting a lower sump in the rear and a longer pick-up to take advantage of it. But I don't like welding on gas tanks. Maybe if i can find a used tank to play with.

TED

Stalling under hard accleration

Reply #2 – June 21, 2007, 12:09:25 AM

Hey I'm not alone:hick:

I've thought about maybe a Mustang tank, if it fits. I'm guessing they had baffeling to deal with the 5.0 HO from the factory. I'd really like to run the stock tank since this car sees street time 99% of the time. First time I did it it scared the shiznit out of me because it threw me back in the seat, fell off, and then jerked me back in the seat again. I can't imagine that doing this is good for either the engine or fuel pump. For now it looks like I'm going to have to run with over 3/4 tank of gas. Unless I figure out a solution that doesn't involve me blowing up from welding on a used thank:flame:

Stalling under hard accleration

Reply #3 – June 21, 2007, 12:16:11 AM

mustang tank wont fit. its a completely different design. that's the one reason i bought a fuel cell.

Stalling under hard accleration

Reply #4 – June 21, 2007, 09:48:25 AM

I keep mine at 3/4+ for the same reason... If you could run it with say 4-5 gallons, would be a easy way to pick up a tenth or two... Assuming you don't have traction issues without the weight over the rear wheels(at least it's in the correct place)...

Stalling under hard accleration

Reply #5 – June 21, 2007, 12:57:15 PM

I don't go below 1/2 tank on the street anyways so I guess I'll have to stay above 3/4 at the track. I just wanted to shave a couple of tenths off but oh well :hick:

Stalling under hard accleration

Reply #6 – June 21, 2007, 01:09:54 PM

Didn't someone here lengthen the pickup and angle the pump back?

Stalling under hard accleration

Reply #7 – April 03, 2008, 03:20:33 PM

Hey back from the dead!:hick:

So I had an idea on this topic. Does anyone know if a Mark VII tank would fit? I'm guessing they have to have a better design than our tanks.

Just wondering but all you guys with big power and a blower (cough Cougar5.0 cough, cough

) how did you solve this problem?

Stalling under hard accleration

Reply #8 – April 03, 2008, 03:38:12 PM

How come I can run my car down to fumes and I don't have this problem?

Stalling under hard accleration

Reply #9 – April 03, 2008, 04:32:03 PM

Haha same here! Must be because we have the same name :hick:

But seriously I NEVER have more than 5-6 gallons in the tank, ever. Last time I filled it up (probably 5 months ago) it went from I think 3 gallons to full. I swear it I noticed a difference, it felt burdened down alright.

Stalling under hard accleration

Reply #10 – April 03, 2008, 05:05:44 PM

Yeah, ive never had this problem either

Stalling under hard accleration

Reply #11 – April 03, 2008, 05:16:46 PM

Well i put a sump on my tank.
I must say it was a dumb idea.
Kicked off the track for draging the sump and the russell fittings on the track.

So next plan is a fuel cell or a new tank with smaller sump.

Stalling under hard accleration

Reply #12 – April 03, 2008, 06:02:07 PM

I should rephrase.....I have a 255 LPH pump and have never experienced this issue.

Stalling under hard accleration

Reply #13 – April 03, 2008, 07:02:51 PM

I have a 155 lph Walbro pump installed the same way as the stock one I took out. Maybe the flow of the pump has something to do with it? Perhaps the larger one is better able to deal with the gas sloshing or picks it up quicker? Who knows. Some people have this problem and some don't

Stalling under hard accleration

Reply #14 – April 03, 2008, 07:51:43 PM

Quote from: thunderjet302;212371

Hey back from the dead!:hick:

So I had an idea on this topic. Does anyone know if a Mark VII tank would fit? I'm guessing they have to have a better design than our tanks.

Just wondering but all you guys with big power and a blower (cough Cougar5.0 cough, cough ) how did you solve this problem?

The LSC tank is the same...

I did see one with a loose baffle, was clanking around inside the tank...

Having looked thourghly at these tanks(I've replaced 6-7 TC pumps in addition to mine twice), I can't see how anyone cannot have the same problem... With the design and size, five gallons doesn't give more than a couple inches of fuel... With the pump mounted in the front half, when you nail it all the fuel runs to the back, and your running on the fuel trapped by the baffle(which can't more than a couple cup fulls)... AND with a loop type fuel system most of that gas is on it's way back to the tank...

Just a thought... MAYBE the returning fuel is supposed to be fed back into the baffle, but instead is missing the mark and is now out in the main tank... Mine bogs almost instantly when the tank is below 1/3, so there is definitely no fuel in the baffle...

Quote from: V8Demon;212395

I should rephrase.....I have a 255 LPH pump and have never experienced this issue.

Pump type hasn't got a thing to do with it, no pump I know of can pump air and turn it into fuel... If anything a higher volume pump should worsen he problem, as more fuel is being returned to the tank...