Safe MAX boost ?

[WRCVR4]

How do you change the AFR's with a factory ECU?

Live tuning on a dyno, Spring Motors now have the equipment to do this (So does JStyle)
SAFC, its only AFR's at WOT you need to tune.

 

[SIVART]

my C73A did a 32.5psi x2 and was still ok, the plastic T-peice broke

the motor was still sweet as

 

[CLuTZ]

How do you change the AFR's with a factory ECU?

Live tuning on a dyno, Spring Motors now have the equipment to do this (So does JStyle)
SAFC, its only AFR's at WOT you need to tune.

That was a rhetorical question- I was just asking everyone who was mentioning adjusting AFR's but werent saying how

 

[brisvr4]

My chip is setup to go to 11:1 at wot.
I lean it out very slightly with my safc till I see knock and then pull it back a bit.
Usually settles around 11.3 or so.

 

[foR.]

I'd also sugest 16-17 psi max for a "standard" vr4 untill you do at minimum a fuel pump.

Altough.. I must admit I free boosted my '88 vr4: evo III turbo/manifold 3" straight through exhaust @ 24psi and she ran with NO complaints for many months haha.