Passat PD130 Fuel Cooler Install - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 6 (permalink) Old 04-13-2006, 01:54 PM Thread Starter
 
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Passat PD130 Fuel Cooler Install

This is how I installed a fuel cooler on my PD130 Passat and as you can see it's nothing more than Carquest's smallest tranny cooler and about 10' of fuel line.

Plug one line off the cooler into the fuel filter out (to the motor) and plug (using a fuel line union) the other cooler line into the hose you just removed off the filter that goes to the fuel pump on the motor.

This will improve throttle response and boost significantly as I just confirmed on a 15 mile victory lap where I ran it up to 120 then took the back roads home.
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post #2 of 6 (permalink) Old 04-14-2006, 03:23 PM Thread Starter
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It has ranged from the 50's to mid-80's here and I now have consistent power, boost and black smoke which I didn't have before when it got hot.

I never thought this would work but it sure did.
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post #3 of 6 (permalink) Old 04-14-2006, 06:00 PM
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Would this be of any benefit to a regular, unmodified TDI?

-Evan

2000 Ford F250, Merillion, 6sp, AIC, DPTuner, BB turbo, Adreneline pump, modified IDM.

1998 Mercedes E300, Custom injector nozzles, soon to have Eaton M90 supercharger, 7.5mm pump elements, Holset HX40 turbo and a full custom intake and exhaust system = 400HP from 3.0l
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post #4 of 6 (permalink) Old 04-16-2006, 02:21 PM
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Quote:
Originally Posted by Kartek
Would this be of any benefit to a regular, unmodified TDI?

I think this is a great modification. If he's seeing a noticable improvment on his mod'ed TDI. I would bet you would see a small increase in mpg. I know from experience in a gasser if you could reduce the temp of the fuel to be burned by using a cool can (can filled with ice with the fuel line coiled inside of it). You would see an increase in quarter mile times. The same idea as cooling the intake between rounds. Anything to create a cooler denser charge. His cooler must be working if he is seeing a more stable boost. This wouldn't be a good mod to make if your car see's cold temps in the winter though. Pretty "cool" idea. Since I can't think for myself I might try out this mod also.


Tony

2002 DODGE 4WD QUAD CAB 2500, SUNCOAST 47RE W/TRIPLE DISK AND BILLET INPUT SHAFT, F.A.S.S, 2 INCH LEVELING SPACERS, FP,BOOST,PYRO,TRANS GAUGES, 5 INCH STRAIGHT PIPEDon: 10K+miles on B100 18.3mpg (BEST)

2003 TDI GOLF (WIFE'S) 50+ MPG

1985 1.6L n/a diesel GOLF, FULL 3 INCH EXHAUST 45 MPG ON FIRST TANK

66' CHEVELLE SS BB468", TH400, 9" W/LOCKER, MOSER AXLES
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post #5 of 6 (permalink) Old 04-17-2006, 08:39 PM Thread Starter
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Quote:
Originally Posted by Kartek
Would this be of any benefit to a regular, unmodified TDI?
I *think* it would and I'm going to go up two cooler sizes the next time I go to Carquest to see if it helps any.


These cars already have Mickey Mouse fuel coolers typically underneath them and usually on the return line going back to the tank for whatever reason.
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post #6 of 6 (permalink) Old 04-18-2006, 11:57 AM
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Is that the big "heat sink" looking thing I saw hanging under the floor pan???

-Evan

2000 Ford F250, Merillion, 6sp, AIC, DPTuner, BB turbo, Adreneline pump, modified IDM.

1998 Mercedes E300, Custom injector nozzles, soon to have Eaton M90 supercharger, 7.5mm pump elements, Holset HX40 turbo and a full custom intake and exhaust system = 400HP from 3.0l
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