Supra falls on its face when floored.

[dbsupra90]

is that outside danville? i wired and setup an in-motion checkweigher at RR Donnelley not long ago. if so, thats about 2hrs southeast of me.

yes, you can tune with the afpr alone. however, you can only move the entire curve up or down. you cannot fine tune per rpm band like you can with the afc. also, the afpr you cannot scale air flow to work around fuel cut.

 

[smokemkevo]

Ya thats outside danville, n thanks for the info bro.

 

[kamikazemkiii]

Afpr's usually work on 1:1 ratios so for every lb of boost theirs a lb of fuel pressure. Safc's deal with a/frs

 

[smokemkevo]

Supra is my DD. if i get all the mods n lex afm n its tuned right, Would it b reliable ?

 

[lewis15498]

Adjusting your fuel pressure is a rough tune that gets you in the ball park of where you need to be. From there you fine tune with the SAFC. You want to minimize the correction % across the board while maintaining the desired AFR. For example if you tune your car with the afc alone you might have correction like +25 +30 +30 +35 +35 +30 you want to raise the fuel pressure so the area that was +30 is now right where it needs to be and then you can have corrections like -5 +0 +0 +5 +5 +0 which is better. Making large corrections with the SAFC can cause issues.

 

[rayall01]

If you do the fuel mods correctly, you do not need, nor should you even want to use a FCD. Fuel cut is there to save your engine, WHY would you disable it? A FCD should have it's name changed to REG. That stands for Randomly Exploding Grenade, which is what a FCD will turn your engine into.