ISO 36lb flex fuel stock tune

[Reddmann]

Can someone please post a stock tune file that is 99-07 running 36lb flex fuel injectors please.

[kevin87turbot]

Here ya go...

2006silverado53Ljoshrstock.hpt

[anniversaryss]

2005AvalanchFlex.hpt



This to

[2xLS1]

Flex 53 L59s started in 02. 02-04 FF 5.3 L59s had a return fuel rail and GM Engineers have them as 33 lb in those vehicles. 05-07 FF 5.3 L59s had a dead head fuel rail and GM Engineers have them as 35.4 lb in those vehicles. I think the two different fuel systems run slightly different fuel pressures. What exactly is it you are looking for?

[anniversaryss]

Flex 53 L59s started in 02. 02-04 FF 5.3 L59s had a return fuel rail and GM Engineers have them as 33 lb in those vehicles. 05-07 FF 5.3 L59s had a dead head fuel rail and GM Engineers have them as 35.4 lb in those vehicles. I think the two different fuel systems run slightly different fuel pressures. What exactly is it you are looking for?

The 2004 i downloaded in the repository had them set a 33 as a return system. I thought it eases weird but i see now.
The 2005 had them as a dead head.

So whatever he needs he can just search the repository for L59 it's all there.

[Reddmann]

Mine is the return less fuel rails so it would be the 36lb