996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

Fuel Pump needs replacement - what direction?

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Old Dec 10, 2014 | 08:40 AM
  #106  
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Not loud - I don't hear them at all, unless I am outside of the car at the rear and it's very slightly audible. It's not an issue whatsoever.

With a louder exhaust, even at idle, you can't even hear them - it is only with a quiet exhaust you hear a very slight humming, but IMO, not enough to bother anyone...
 
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Old Dec 10, 2014 | 09:15 AM
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Originally Posted by John@SpeedTech
Not loud - I don't hear them at all, unless I am outside of the car at the rear and it's very slightly audible. It's not an issue whatsoever.

With a louder exhaust, even at idle, you can't even hear them - it is only with a quiet exhaust you hear a very slight humming, but IMO, not enough to bother anyone...
With 3" straight pipes, I could hear mine with it mounted where the cd changer used to be.

Just my 2c
 
Old Dec 10, 2014 | 09:22 AM
  #108  
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That's very different than engine bay mounted and probably accounts for that...basically, it's right against the firewall where you sit.
 
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Old Dec 10, 2014 | 09:24 AM
  #109  
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Originally Posted by John@SpeedTech
That's very different than engine bay mounted and probably accounts for that...basically, it's right against the firewall where you sit.
Sort of, there are technically 2 walls between the trunk space and cabin. I just didnt like the idea of putting the pump in the hot engine bay.
 
Old Dec 10, 2014 | 09:29 AM
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Originally Posted by John@SpeedTech
That's very different than engine bay mounted and probably accounts for that...basically, it's right against the firewall where you sit.
I agree with that. I have a transmission cooler pump that is mounted on the left side of the gearbox. I can hear it with the ignition on when the engine is not running but it's not audible when the engine is running. I would imagine same applies to the 44 if mounted somewhere near the engine.
 
Old Dec 10, 2014 | 11:02 PM
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Originally Posted by SamboTT@ByDesign
Mmmmmmmmm

Upper bulkhead being machined. The lower portion of the factory sending unit will snap into this piece. All lines between the pump and a purple kid will be upgraded and provided. Above will be fuel line fittings for any configuration. Adapters for stock fuel lines...which will be fine on single pump set-ups up to 800/900 crank hp with large injectors. Or –6 fittings ready to Y into –8 all the way to the back into custom fuel rails being built now. Even a third pump can be added to this configuration but we think it will support 1200 crank hp even on E85.

Anything can be done. We have even talked about using one pump to power the Venturi's and the other pump solely to feed the engine fuel. But I think the best option will be a single pump or dual pump and it should cover most builds.

There will be a mill spec electrical connector that everything plugs into. No cutting. I promise more pictures as I get it. Sean and Kyle are really moving fast.

Getting closer ASLAN!
Nice! Can't wait to see the single pump setup.
 
Old Dec 19, 2014 | 12:02 PM
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Originally Posted by TabooPc
As you can see, the two tubes are just to and from the rails, no recirculating.

Couple more pics:
Just to verify, you have the standard GT2 tank, 67L (16.6 gallon) one? I believe the earlier GT3 had a 90L option but that was not available on the US version GT2s if I'm not mistaken.
 
Old Dec 19, 2014 | 12:07 PM
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Originally Posted by pwdrhound
Just to verify, you have the standard GT2 tank, 67L (16.6 gallon) one? I believe the earlier GT3 had a 90L option but that was not available on the US version GT2s if I'm not mistaken.
Yep... Standard tank. Not sure if its 16.6 gallons because I only get about 14.5 in from it being very very low... But you could be right. I usually fill up before 1/8th tank.
 
Old Dec 19, 2014 | 12:13 PM
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IIRC, all 996/997 GT cars had the 90L option if ROW.


Originally Posted by pwdrhound
Just to verify, you have the standard GT2 tank, 67L (16.6 gallon) one? I believe the earlier GT3 had a 90L option but that was not available on the US version GT2s if I'm not mistaken.
 
Old Dec 19, 2014 | 08:41 PM
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For those guys waiting on me to post thank you for your patience. Sean and Kyle at silly rabbit motorsports have been working hard all week on top of other things they have going on to get this done and installed.

All set and clean like he wanted. All they have to finish is the plug and play wiring harness then comes the stage two with the full line kit front to rear end rails. They are working away.

Sorry for the massive pictures.











Top and bottom pump section. Sending unit incorporated
 
Old Dec 19, 2014 | 08:44 PM
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Clean!





 
Old Dec 19, 2014 | 08:59 PM
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Nice Sam. Very nice.
 
Old Dec 20, 2014 | 12:12 AM
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Beautiful work for sure!
 
Old Dec 20, 2014 | 05:10 AM
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Ooooh I love me some billet items....

Beautiful with the machining marks...

Nice work!!
 
Old Dec 20, 2014 | 11:37 AM
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Originally Posted by TabooPc
Yep... Standard tank. Not sure if its 16.6 gallons because I only get about 14.5 in from it being very very low... But you could be right. I usually fill up before 1/8th tank.
Thanks. I was just doing some research regarding which tank set up has the jet pumps and which doesn't. From what I've found out:

996TT has two jet pumps
996GT2/GT3 with standard 67L tank has no jet jumps
996GT2/GT3 with optional 90L tank has one jet pump
996Cup with standard 90L tank has one jet pump
 


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