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post #170 of (permalink) Old 06-20-2017, 12:39 PM
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Join Date: Jul 2008
Location: Huntington, New York
Posts: 950
Interesting project. I run a car in endurance races.

For anyone choosing the Bosch 044 pump, when installed with the stock fuel pressure regulator it will boost the fuel pressure in the rail about 5 PSI due to its much higher volume. This rise in rail pressure allowed me to run a slightly modified 3 liter S motor with OEM 2.5 liter engine management - I'm definitely giving up some HP but it never burned a piston or has not damaged my motor- yet. I should have larger injectors and aftermarket engine management.

With an adjustable regulator you can choose your rail pressure. Also the Bosch 044 can support way more horsepower than any of these motors can make. I chose it because its available everywhere. A smaller pump would definitely suffice and draw less amperage. Sometimes in endurance racing you want to keep the amperage draw low so you can run powerful head lamps for night racing.


1972 Berlina Vintage Racer, 1987 Milano Platinum (LeMons Car), 1982 GTV6 EP Race Car, 1974 GTV Vintage Race Car, 2012 VW GTI stage II, 1966 Corvette Coupe 327-350, 2007 Triumph T100 Bonneville. Dearly departed: 1971 Fiat 124 Spider, 1983 Saab 900 Turbo, 2004 Saab 9-3 Aero, 1995 BMW 540i Sport, 2014 Audi A4 (swamped)
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