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Old 11-17-2011, 12:09 PM
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Flug540 Flug540 is offline
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Location: Hayward, CA
Join Date: Nov 2009
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Mein Auto: 1998 BMW 540i 6-spd
Originally Posted by bricas45 View Post
So dinan runs 30lb injectors at 5bar. I could run 42lb injectors at 3.5bar. This would amount to same flow.

I have both sets of injectors, car has 3.5bar fpr and I have the 5bar fpr sitting at home.

Any recommendations on which setup? Seems to me that if I run lower pressure that reduces strain on lines.
The pressure in the rail actually does not change, in my setup it is still around 55 psi. You need a high flow fuel pump to ensure the fuel supply at the same pressure with larger injectors.
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