by spencerforhire » Sun Apr 27, 2014 6:59 am
Due to the high pressure used, line size on a SFI system is not as critical as it is with a carburetor. I've seen late model 600-700hp street cars with stock 3/8" line. I'm pretty sure a 5/16" line would feed your 3800 ok. Wasn't the original application for your V6 a return system? It would have probably been 3/8" feed and 5/16" return. What are you planning for return? A lot of retro-fitted fuel injection systems use a new 3/8" feed and use the smaller original line for return.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....
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