HOW TO DO AN ADVANCED SEARCH.

Mon Jul 08, 2013 3:56 pm by Admin


For the benefit of 944Hybrids users there are two search functions available for you to use.
The purpose of this sticky is to explain the "Advanced Search" function because it is much more powerful and is the best choice when researching information.

When you log on to the site a list of options is shown in a line at the top of the page. One option is labelled "Search", use this option (NOT the search box lower down on the right).

After you click on the upper search option, a drop down box appears. At the bottom of this box is a radio button marked "Advanced …

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Fuel Pump recommendation

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Fuel Pump recommendation

Post  wanczykj on Tue Jan 05, 2016 9:25 pm

Tuner is telling me the car is running rich towards the top end and needs a bigger flowing fuel pump than the stock Porsche pump.

Anyone using anything other than the Porsche stock fuel pump?

Tuner is recommending a Walbro 255.

wanczykj

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Re: Fuel Pump recommendation

Post  Rich L. on Tue Jan 05, 2016 9:53 pm

The Walbro 255 flows more than stock and the Bosch 044 even more. Both are understood to be good, reliable pumps. I still run the stock 944 pump with my 400hp LS1.

By the way, low fuel pressure usually causes lean conditions, not rich. Have you tried replacing the fuel filter, that can cause lean running too.

Rich
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Re: Fuel Pump recommendation

Post  wanczykj on Tue Jan 05, 2016 9:58 pm

Thanks for the response Rich.  

The car is running lean on the top end. Sorry for the typo.

I was thinking the same thing and already have a new fuel filter on the way.  Everything I read says the Porsche pump is more than enough to run the LS1.

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Re: Fuel Pump recommendation

Post  docwyte on Tue Jan 05, 2016 10:34 pm

I'm running the direct fitment Bosch pump. Believe it's from a '70's Benz, it's the one Lindsey Racing sells

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Re: Fuel Pump recommendation

Post  sharkey on Wed Jan 06, 2016 1:13 am

ive got an aem 380lph pump on my car. its the same dimensions as the bosche 044 pump.

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Re: Fuel Pump recommendation

Post  Lemming on Wed Jan 06, 2016 7:05 am

I'm running the walbro 255, have been since I built my car. At close to $100 a pop, I keep a spare with me, although I've not needed it.
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Re: Fuel Pump recommendation

Post  wanczykj on Wed Jan 06, 2016 5:04 pm

Thanks for all the info. Ended up going with the AEM 380LPH. I will let you know how it worked out.

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Re: Fuel Pump recommendation

Post  wanczykj on Mon Jan 18, 2016 11:38 am

I have finally gotten around to mounting the pump, and I am happy with the purchase so far. Pump can't be heard while the car is running, and the fuel rail stays a steady 58psi at all throttle positions.

Thanks for the advice from all.

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Re: Fuel Pump recommendation

Post  erioshi on Wed Jan 20, 2016 8:00 pm

wanczykj wrote:I have finally gotten around to mounting the pump, and I am happy with the purchase so far. Pump can't be heard while the car is running, and the fuel rail stays a steady 58psi at all throttle positions.

Thanks for the advice from all.
Nice to know the AEM is quiet. I have a Walbro 255 providing fuel on my '79 928 right now and it's noisy. I've been considering looking for a better solution, but figured it would work to get me up and running, and I could replace it later.
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