surging/help please/

[01cobrakid]

http://www.svtperformance.com/forums/showthread.php?s=&threadid=57068

Please help!!! I dont know if its really safe to drive the car?!

Mike

 

[kpyzfrwon]

My prochargd 99 cobra does the same thing. It does however seem to not do this "surging" when using full throttle. Just 3/4 throttle to full??? Weird.

Let me know when you find out please. Thnx

 

[01cobrakid]

I talked to a speedshop guy yesterday and he said my fuel pump is not sufficient?!!!! So now i need and new setup probly looking at about $600 for the 03 pumps and tank!!!!!!!!!!!!!!!!!!!!
another day another 6 hundred dollars i guess.

Mike

 

[L.B.]

Cheapest I have heard the baffled 03 fuel cell and twin pumps going for is $699...Ford is getting $1300 I think...good luck...

 

[fly boy]

Where can I find a 03 tank at ?How much? Any idea what would happen when you use a 03 pump in a non 03 tank?(like how the car would run)

 

[ForceInjection]

We have those 2003 mustang 255lbs Fuel pump for $159.00

 

[Bostard]

Don't run the '03 pump in an older tank. The older tanks are not baffled and you will run out of fuel on hard accel, braking and cornering.

ForcedInjection......Does your new Walbro 255 require modifying the basket on the returnless system like the older ones? I am also concerned about how it will perform under the variable voltage of the 99-03's.

 

[cnp24]

Originally posted by fly boy
Where can I find a 03 tank at ?How much? Any idea what would happen when you use a 03 pump in a non 03 tank?(like how the car would run)

A couple of places I know you can get the 03 setup.

http://www.modularmadness.com

http://www.mustangracing.com

and I'm sure there are many more.

 

[akatherazor4]

Originally posted by Bostard
Don't run the '03 pump in an older tank. The older tanks are not baffled and you will run out of fuel on hard accel, braking and cornering.

ForcedInjection......Does your new Walbro 255 require modifying the basket on the returnless system like the older ones? I am also concerned about how it will perform under the variable voltage of the 99-03's.

I've been running the 03 pump in my 01 tank for almost a year now with no problems. The only thing you need to do is fill up at a quarter tank.

Razor.:beer:

 

[Booyah]

Originally posted by 01cobrakid
http://www.svtperformance.com/forums/showthread.php?s=&threadid=57068

Please help!!! I dont know if its really safe to drive the car?!

Mike

I know your tech already told you one thing but have you made sure the gap on your plugs is correct?

 

[Bostard]

I've had the surging problem for a while with my Paxton. We put it on the dyno and we found that as you'd roll into the throttle the fuel pressure would start dropping from about 40psi all the way down to 6psi at about 2/3 throttle. Then it would spike to 70psi, puke a puff of black smoke and take off again. I learned that it is because Paxton sells you an inline fuel pump with their Novi 1000 kit that isn't compatible with the returnless system.

Solution: Get the pump that superchargersonline sells for $160 and ditch the inline pump that Paxton sold you. The new pump slips right into the factory basket and give plenty of psi right up to redline. I'm now a happy camper. Thanks Trevor.

 

[L.B.]

Originally posted by cnp24
A couple of places I know you can get the 03 setup.

http://www.modularmadness.com

http://www.mustangracing.com

and I'm sure there are many more.

MRT has them but they are on backorder...unknown ETA...:shrug:

 

[white99gt]

Tank and pumps here for 600.00 plus about 25.00 shipping.

http://forums.modulardepot.com/showthread.php?s=&threadid=1277

Randy is a ford parts manager and can help you with any ford part.

Also check you plug gap .Start small and go bigger little by little.

The 03 pumps support more power and are easier to tune than most other fuel pumps.

 

[NoPony]

Originally posted by fly boy
Where can I find a 03 tank at ?How much? Any idea what would happen when you use a 03 pump in a non 03 tank?(like how the car would run)

Steeda sells the pumps and tank for around 650.00 You can go with just the pump but it is not recommended. The baffles inside the Cobra tank keeps the fuel from sloshing around and air getting in the fuel line. This is what I have heard anyway. Can anyone else confirm this?

 

[white99gt]

Originally posted by NoPony
Steeda sells the pumps and tank for around 650.00 You can go with just the pump but it is not recommended. The baffles inside the Cobra tank keeps the fuel from sloshing around and air getting in the fuel line. This is what I have heard anyway. Can anyone else confirm this?

Thats true.Since the pumps are in the open with no baffles or bucket(like the gt pump is in) the car can slosh fuel away from the pumps.

 

[akatherazor4]

Originally posted by white99gt
Thats true.Since the pumps are in the open with no baffles or bucket(like the gt pump is in) the car can slosh fuel away from the pumps.

That's why you don't run the fuel below a 1/4 tank.;-)

Razor.

 

[white99gt]

Originally posted by akatherazor4
That's why you don't run the fuel below a 1/4 tank.;-)

Razor.

True.But i like the slosh factor gone.Mine still does see curves ,so i like the extra safety factor.And not worring about uncovering the pumps at all.

 

[akatherazor4]

Originally posted by white99gt
True.But i like the slosh factor gone.Mine still does see curves ,so i like the extra safety factor.And not worring about uncovering the pumps at all.

I understand what you mean, and it's the right choice to install both the pump and tank togeather. I just run the pump only and haven't had any problems in the year I have done so.

Razor.:beer: