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TEXAS HEAT

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It help over 15 psi of drop from 66 to 51 now it just stays 66-65
Is this the pressure drop that occurs as the rpm's increase or did it also help with the pressure drop at the onset of the pull?

frp drop.jpg
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hoss_s550

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Those who are pushing the limits on stock fuel system . I did VMP fuel rails today and it help my pressure drop greatly. I’ve heard rhe 18+ rails don’t flow that great with these new rails totally different car.
I actually just ordered division X rails today. That's good news... wanting to do e54 tune
 

TEXAS HEAT

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BoostN IT

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My pressure drop was just as rpm went up mostly the last 500-700 rpm
You think Gen 2 Fuel rails are okay? Just gen 3 needing upgrade.
 

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kenand1988

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VMP boost a pump
How did you relieve the pressure in the rails? Can you run them dry I guess that would be ideal. I've tried disconnecting fuel pump module and the fuel pump itself and the car will still idle.
 

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Brad1810r80

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I’ve pull the fuse and crank the car till it dies and I’ve just un done the rails without doing anything. Not much fuel comes out. I put a towel to catch it.



How did you relieve the pressure in the rails? Can you run them dry I guess that would be ideal. I've tried disconnecting fuel pump module and the fuel pump itself and the car will still idle.
 

kenand1988

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I’ve pull the fuse and crank the car till it dies and I’ve just un done the rails without doing anything. Not much fuel comes out. I put a towel to catch it.
I've looked for that fuse do you remember it's name?
 

kevinvan6000

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If anyone is looking for an affordable set of fuel rails, take a look at the Boomba Racing kit. Its on sale at the moment for $175. For the 18+ cars, you need to order an additional 8an ORB to 3/8" adapter for either the feed from the tank or the High Pressure connection as well as an adapter to convert one of the 1/8 NPT ports for the fuel pressure sensor. I got both mine from Radium for $35

https://www.boombaracing.com/mustang-gt-fuel-rail-natural/

Radium PN 14-0359 FP Sensor fitting
Radium PN 14-0368 14-0368 8AN ORB to 3/8in SAE Male
http://www.radiumauto.com/NPT-National-Pipe-Thread-Fittings-P626.aspx
 

hoss_s550

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If anyone is looking for an affordable set of fuel rails, take a look at the Boomba Racing kit. Its on sale at the moment for $175. For the 18+ cars, you need to order an additional 8an ORB to 3/8" adapter for either the feed from the tank or the High Pressure connection as well as an adapter to convert one of the 1/8 NPT ports for the fuel pressure sensor. I got both mine from Radium for $35

https://www.boombaracing.com/mustang-gt-fuel-rail-natural/

Radium PN 14-0359 FP Sensor fitting
Radium PN 14-0368 14-0368 8AN ORB to 3/8in SAE Male
http://www.radiumauto.com/NPT-National-Pipe-Thread-Fittings-P626.aspx
i got the BPS/Divisionx for 379 shipped using a discount codes. includes plumbing for stock lines and you can upgrade to return style later. Wish i would have known about the boomba setup though.
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