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JohnJL JohnJL is offline
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Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,728
Originally Posted by DonE View Post
I run the stock CIS fuel pump system (Bosch pumps in series). This provides plenty fuel pressure for my +500 hp system (I also use the stock 3.2L fuel rails, damper and FPR). Personally, I wouldn't be comfortable running a single pump with my motor - consistent fuel pressure to my injectors is critical for maintaining correct AFR's and if a single pump failed gradually, it might lean out and burn a set of pistons. Anyway, stock for me - it works.
I'm no expert, just trying to learn something...if you have 2 pumps, arent you twice as likely for one of them to fail? And if you have 2 pumps, isnt it more difficult to tell if one is failing?
2007 911 Turbo - Not a toy
1985 911 Cab - Wife's toy
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1978 911 3.0 Lichtbau toy "Gretchen"
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Old 02-27-2010, 05:21 AM
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