I have a stock LS with the turbonetics t3/t4.
how much boost can i run safely with walbro 255lph, dsm 450 injectors, AFC hack, itr exhaust w/ high flow cat?

will the block and car hold up under 9 psi of daily driven boost?

 

yes the block will hold that, but becareful of your ignition timing w/ that afc hack....

 

what do you mean? what do i need to watch out for?

 

you cant adjust your ignition timing w/ the afc hack, but w/ hondata and the EMS, you can

 

Use msd BTM or a J&S ultra safeguard if you dont want (cant afford) a standalone.
Basically you need something to keep an eye on your timing.

Rob

 

so at 9 psi, i will need the extra timing adjustability?
also, running 7 psi, i don't have to worry about timing so much?

 

id retard your timing a couple degrees from stock

 

with 7psi?
what do i need to do that?
ignition? msd 6al? or cam gears?

 

At 7psi, I would say set it back a few degrees on the actual distributor. But for 9 psi, I would say be safe and get the j & s or the msd btm so you can pull timing at higher levels of boost.

 

7 psi, 9 psi- its all bullshit. you need to tune based on how many cfm's your turbo is pushing IN to the motor.