Fueling & Injection - Fuel system confusion
12-22-2009, 01:14 PM
I'm doing an ls swap in my 92 mustang. I have the corvette fuel filter already and all the lines are plumbed. But, i was just wondering. Dont the stock ls1 returnless fuel rails have a regulator built into them?
12-22-2009, 03:38 PM
Yes they do, it the the big bulge on the driver side fuel rail, it has a snap ring and a filter in there with the spring.
12-22-2009, 04:41 PM
NO they do not the Corvette filter/regulator has one built in. The factory rails do NOT. GM calls it a pulse dampener whatever that means...even they realized they don't need it and removed it in later vehicles.
12-23-2009, 01:41 PM
I agree, pulse dampner. That is not a regulator.
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