LS1BADZ

iTrader: (5)

Doing a 5.3 turbo build, have a stock tank with -10 feed and -8 return fitting, bought a -6 feed and return regulator, stock rails with -6 inlet. What are my options for in tank pumps and reducing the an fittings? Figure 650rwhp max. I'd prefer to run one pump

Should I use this regulator instead and use a 8 to 10 adapter on feed, 8 to 6 adapter on outler and 6 to 8 adapter on return?

LS1BADZ

iTrader: (5)

http://summitracing.com/parts/hly-12-846


This regulator

maroonls1z

Why are you going to run the factory rails if that's going to be you choke point in the feed system?

ss performance

iTrader: (17)

There isn't much point in running large lines if you are going to chock it down at the rails. If you are making enough HP to require the larger lines then you need rails & regulator that match.

Good luck.

maroonls1z

I'd say u can keep the regular and ditch the rails and get some aftermarket ones. Then u can go ahead and use ur adapter fitting in the regulator if I place it in the system behind the rails

HexenLord

The stock rails are good for a LOT more than 650 whp. -10 AN line is good for 3000 or so HP. The rails aren't a restriction, the -10 AN line is overkill.