fbody4everyone

c6, ls2, a4. Stuck between doing a full bolton/cam/heads/stall build, OR a procharger/headers. I'm staying in the more reliable limits of drivetrain, 5-600hp max if i go FI. Car is just a fun weekend cruiser. BUDGET 8-9k, I know the procharger will take at least 6k brand new!

So, question is when it comes to the returnless fuel style, is it absolutely necessary to do a return fuel system with a aftermarket FPR at only 5-600hp? or can i just install my 340lph pump with some injectors and use the stock rails/lines/returnLESS system??

brandon6.0

iTrader: (32)

U can use the returnless setup if u choose to. My tbss was making over 500hp NA + a 200shot all fed off the rails with a returnless setup! Its all in how u choose to run it!

fbody4everyone

thanks for the reply! i just didnt know if the bigger fuel pump would over power the rails without a return line or an FPR

eaglegoat

You have a FPR in your car already. I don't know if a DW300 will overpower your in tank regulator in the c6 or not, but it works in an ls2 GTO, so it might.

You'll be better off if you go to a return setup, but it's not required. You can do it fairly cheap.

fbody4everyone

Then maybe ill stick with the returnless until i decide to crank it up.

brandon6.0

iTrader: (32)

My tbss has a aem340 in it. Been in there over a yr daily driven without issues.

klinznilk

iTrader: (8)

100% bone stock fuel system except for the 255 racetronix with hotwire/80# injectors.... 565/502 on my d1x setup