well if i pay for 3bar shouldn't i be able to run 2bar or do i have to get both if so i guess i'll just do 2bar but what to do when you get too much boost for that to.

 

I doubt the 3 bar tune works with a 2 bar map. The MAP scaler would be all screwy.

 

yeah i was afraid of that. does hpt not tell you what sensor to get if your gonna buy there 3bar support they should tell you what sensor to get that works. or is it just me.

 

if you think you will ever run over 14.7psi then get the 3 bar. actualy you could limp it a ways past 14.7. probably be ok up to 16 or 17psi on the 2 bar but if you think you will be over that go with the 3 bar right off the bat.

 

I don't think 3bar tuning has been released by by HPT yet.I think just a handfull of tuners have it to work the bugs out.3bar tuning would probably be a race only item,not many applications will exceed 14.7lbs of boost on the street.

 

that what i was thinking becouse wether i go bigger cubes or just build the 4.8 to hold it i may run more than just 2bar. didn't you sqeeze 20psi into your stock 4.8

 

There's going to be a point of diminishing returns on boost. I wouldn't sweat a 3bar tune too much unless you are going max effort and plan on a huge turbo or twins. I built my motor to handle 18psi, and like Jim said, I would run it to 16,17,18psi on the 2 bar MAP just be cheating the top lines of the tune (make them rich enough for max boost and deal with being a little too rich between 14.7 and max boost.

Then again, unless you want more than 800 fwhp, you don't really need to worry about it at all I think -- 2 bar will be plenty.

 

decisions decisions. and i guess if hpt don't have the 3bar they will soon https://ls1tech.com/forums/showthread.php?t=258350

i've got 5more months left over here so i'll figure it out when time gets closer to me getting back

 

And by then, someone will have worked out all the kinks on a 3bar tune too.

 

yes so maybe it will work out. one thing good about deployment is i can read and research and get good stuff with out rushing into stuff