well I took my trans to get it built today with new alto red clutches blue steels and all the goodies and got the rest of my intake stuff in this ought to get me down in the low 8's on motor and now with these new injectors I can finally juice this beast should be done saturday gonna try to make it to douglas sunday for a test run or 2 on motor since I finally got a day off in a month.forgot to mention this is a 2008 flex fuel tahoe fuel rail with the 33 or 38 lb injectors wish i knew what they were but all these mixed post of what the flex fuel inj's are!

 

I am extremely curious to see the gains you get. You have very sikmilar mods to my setup, sans the 80e and nitrous.

How hard was it to set up the rails for the return fuel system?

 

I just cut the tab that the fuel hard line hold to the rail and bent the inlet pipe out and up a little and tig'd a spacer i bent and that was it then i just got me a 2004 corvette fuel filter and put on the end of it now im just gonna hook my existing line to that filter it is internally regulated at 58lbs.

 

you better find out the exact numbers on those injectors or your trims are going to be wayyyyy off

 

Moreso you better get it on and running soon so we can see your results

 

im just going to do 33lbs on my ifr's and go from there i have a wideband so it won't take to long to find out . putting it on as we speak but im waitin for my 4l80e to come back tommorow man said he would be done tonight building it can't wait it only took me 1 hour to take the tranny out and load it up so 1 hour after i get it I will tell results.

 

be careful on the fuel lines, I did mine like that and changed it up bc they looked like they were kinked. Doing it like the pic pushes the fuel lines too far back. I ended up getting some quick connect ends and some Fi hose and making a loop from the out of the filter to the fuel rail.

I would look for some 42lbs injectors. The flex ones will be at the edge.

 

i have an 06 5.3 flexfuel. can i swap my fuel rail and stuff over to a TBSS manifold? with the same injectors?

 

yes they bolt right up. I found that out also but I had bent mine to the side and it seems to be pretty good they were kinked at first we will see when I get the trans back where did you get those quick disconnect ends from ?

 

autoparts store, gm quick connect fuel ends. they are usually hanging with the sections of fuel line. There is a GM part but it cost $60+
I used FI hose, expensive! but onlty need a little
I double clamped it using FI stainless hose clamps.
I used a female on the rails and a male at the filter.

I have also heard that you should add an engine cover to hide said filter ontop of mainfold so you can get thru tech b/c they will bitch if they see it just sitting there.