Fuel system failureS?
01-18-2009, 03:38 PM
#1
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Fuel system failureS? Simple question, yet might be too broad.
How frequent do fuel systems fail? Or even better, how frequent to fuel pumps fail.
Im asking this question, because I would like to assess the risks of running dual pumps. If one goes one a lean mixture at high boost would destroy the engine in an instant.
Im guessing one BIG pump is a much better approach, having a vehicle that does not run as an indication of a pump failure is much better than ending up with a blown-up engine.
Ideas?
How frequent do fuel systems fail? Or even better, how frequent to fuel pumps fail.
Im asking this question, because I would like to assess the risks of running dual pumps. If one goes one a lean mixture at high boost would destroy the engine in an instant.
Im guessing one BIG pump is a much better approach, having a vehicle that does not run as an indication of a pump failure is much better than ending up with a blown-up engine.
Ideas?
01-18-2009, 08:06 PM
#2
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Fuel pumps don't always fail outright. In that case, the second pump in a dual setup would be nice insurance. If a single pump started failing and was not keeping pressure up, your motor would be just as fubar'd.
01-18-2009, 08:41 PM
#3
I've built a few hundred double pump kits per year over the past few years & have yet to see a pump failure. A lot of it has to do with how you build them & the quality of parts involved.
A big single can drop in output as well giving the same lean results.
There is no substitute for watching your fuel pressure gauge.
A big single can drop in output as well giving the same lean results.
There is no substitute for watching your fuel pressure gauge.
