13 SHO with PP, Corsa catback, and 2 bar unleashed 93octane Tune 346.27 WHP 385.95 WTQ

[ajpturbo]

U can run 14-15 psi no problem on the stock map sensor...u could even run a little more...short term fuel trims would take care of it to a point...I think the stock tune would limit the max amount of fuel added by the O2 by 25 percent

Basically the computer won't know how much to fuel to add or why but based on the lambda readings from the 02 it will keep adding fuel to the max allowed until it gets back to desired lambda...if the Desired lambda at wot in the last load column is set to .80 then it will aim for that when the load reaches max as defined by the tables

 

[f8tlSHO]

So, a 3 bar running 15-16lbs of boost has what advantage?
Keeping o2's from overfueling?

Sent from my iPhone

 

[ajpturbo]

So, a 3 bar running 15-16lbs of boost has what advantage?
Keeping o2's from overfueling?

Sent from my iPhone

Eh it's not a bad question...personally I would get a 3 bar sensor if I was going to run 15 psi...but it's better to to operate in the middle of a sensors range than at the max..like gauges.. And it's would be less than ideal to rely on the o2's to add fuel...what if u have a bad 02?..that's also the reason the tune limits the allowable amount of fuel added or pulled by the o2's...u have to have limits in case of component failure or erroneous readings

 

[f8tlSHO]

So, a 3 bar running 15-16lbs of boost has what advantage?
Keeping o2's from overfueling?

Sent from my iPhone

Eh it's not a bad question...personally I would get a 3 bar sensor if I was going to run 15 psi...but it's better to to operate in the middle of a sensors range than at the max..like gauges.. And it's would be less than ideal to rely on the o2's to add fuel...what if u have a bad 02?..that's also the reason the tune limits the allowable amount of fuel added or pulled by the o2's...u have to have limits in case of component failure or erroneous readings

That's a good point...


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[JDW1]

OP, how many revisions did it take to get to these numbers?