Not all the 'facts' on RRFPR's are true........ - Saab 9000 Bulletin Board - Saabnet.com
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Not all the 'facts' on RRFPR's are true........
Posted by zeke (more from zeke) on Thu, 18 Apr 2002 14:17:43
In Reply to: Not all the facts here are true, Saabiesaab, Thu, 18 Apr 2002 13:14:50
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A RRFPR will give you too much fuel in the low/mid rev-range where the fuel delivery vs. fuel need is usually sufficient. The engine will run overrich, to a degree where power decreases, and the oilfilm on the cylinderwalls can be washed away. When running an engine at high rpms and high load, fuel delivery vs. fuel needs don't match in the lean direction
The most elegant solution is software that will give the engine more gas, or if the injectors are too small, install fuel injectors that match the fuel needs along with software designed for the bigger injectors.
Simply stated, a RRFPR can cause as many problems as it purports to resolve.
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