View Full Version : Fuel cell and pump engineering
Knestis
10-27-2004, 08:11 PM
Anyone have specific recommendations for doing a cell and pump for an injected VW product?
This step is at or near the top of the to-do list and I'm a fan of learning form others' successes - or mistakes.
K
vwmann1
10-27-2004, 08:31 PM
Any of the aftermarket pumps should work. I assume this is for a mkIII car. If so any pump that can handle 50 psi should work. I would say check Summit for pumps that are for a carb to FI conversion.
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Doug
racer_tim
10-27-2004, 10:24 PM
Kirk, I had to do this when I converted to LP GP. I got a alum overflow tank from Summit, and added 2 additional fittings to the top of it.
I run 2 pickup's from the cell (T fitting), to a facet low pressure pump, to 1 of the 3 top fittings. Bottom fitting to the stock fuel pump, 1 top fitting for the return from the FI, the the 3rd top fitting for the return to the cell.
Pictures
http://linerud.myvnc.com/racing/2002/index.html
Bottom of the page.
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Tim Linerud
San Francisco Region SCCA
#95 GP Wabbit
http://linerud.myvnc.com/racing/index.html
evanwebb
10-28-2004, 12:40 AM
Hey Kirk! I did just what Tim had described (Tim, show him the pictures of the tank installation!) except I used what I think is a much better low-pressure pump, a Carter 4070. It is a LOT of stainless steel braided plumbing, you will need to water-cool your credit card...
Eric Parham
10-28-2004, 11:56 AM
Tim,
Sweet install! What size cell is it that fits snugly within the diameter of the Rabbit spare tire well? I like the way you've kept the original metal high-pressure lines, while minimizing costs for new stainless.
SamITC85
10-28-2004, 02:41 PM
Tim,
Do you have any pics of the sump tank before your install? I would like to do something similiar but I want to know where to add the connections you added. Also have you though about turning it horizontal as opposed to vertical so you can tuck it a little higher in the fuel tank area and further from the track?
Sam
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Sam Rolfe
TBR Motorsports
#85 ITC VW Rabbit being converted to LPHP
#85 GP Scirocco
[This message has been edited by SamITC85 (edited October 28, 2004).]
racer_tim
10-28-2004, 10:54 PM
Summit Racing P/N SUM-300101
$49.95
http://static.summitracing.com/global/imag.../sum-300101.jpg (http://static.summitracing.com/global/images/prod/large/sum-300101.jpg)
I had the local shop fill/remove the top fitting, and add the 3 on the sides witn 90 degree fittings. If I were to do it again, I would have used the hole for accessing the stock gas tank sender, and then created a "tower" bulkhead there. This is just a bit lower than I'd like. I had to build a "deflector" for the bottom line since it's a smidge too low. Even though we're not supposed to be doing "off road racing" but just look at my e-mail signature.
The cell is an 8 gallon Fuel Safe "sportsman"
So if you look just to left of this shot of the sump tank, you'll see the bottom of the access "hole".
http://linerud.myvnc.com/racing/2002/sump-tank-2.jpg
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Tim Linerud
San Francisco Region SCCA
#95 GP Wabbit
http://linerud.myvnc.com/racing/index.html
Asked "Had I ever done any off-road racing"?
answered "No, not intentionally"
[This message has been edited by racer_tim (edited October 28, 2004).]
Bildon
10-29-2004, 06:24 PM
Kirk,
First I have a question. Why?
maybe I missed something as I quickly scaned this thread...but the stock VW system is excellent. Or are you going Prod?
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Bill Sulouff - Bildon Motorsport (http://www.bildon.com)
Volkswagen Racing Equipment
## 2003 ITB NYSRRC Champs ##
Knestis
10-29-2004, 11:14 PM
One minute per 5-gallon fuel jug through the funnel is why. 22-gallon cell and quick-fill, baby...
K
Bill Miller
10-30-2004, 11:48 AM
You gonna go dry-break and get some NASCAR dump cans???? Sounds like Pablo may become a dedicated endurance racer!!! Too bad they don't run the Longest Night of Moroso anymore. You gonna make the Summit Point 12 hr next year??
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MARRS #25 ITB Rabbit GTI (sold) | MARRS #25 HProd Rabbit
SCCA 279608
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