I was just going through a bunch of posts and realize that nobody really has gauges setup to see if their s/c 9.5 pulleys are making their cars run lean. Is there a reason for this? OR does the flash from TRD still make the car run real rich even w/ the higher psi?

 

I just put that pulley on my friends TC yesterday. Before the pulley his AFR's were 10.1-10.7. After the pulley his AFR's were 10.5-11.3. Everything is fine with the added boost.

 

we're not running a diff pulley ( yet... ); but i have read elsewhere on here that the car can handle the higher psi without leaning out too much... in fact it seems like it's almost set up for it....

 

It does really seem as though the ECU reflash was designed with more boost in mind. Say what you will, but Toyota has a history for setting up their boosted ECUs to handle nice boost levels. Think about the older MR2 supercharged, the MR2 turbo, and the infamous Supra 2JZ.

In the case of the tC reflash, the stock 7psi a/f ratio is about 10.5 or so. Most of the higher boosted cars are showing readings in the 11 to 12 range which is very safe.

 

Another argument that the SC was detuned for CARB or just to keep it easy on the warranty...

 

I was running a 9lb pulley and was getting between 10 and 10.5-1 AFR... Trust me, they are running RICH..

 

Good deal.

 

What kind of AFRs were you getting at partial throtle and low boost?

 

I wish I could remember man...

 

My friend runs 14.7-15.3 at partial throttle.

 

I still need to put in my wide band, but at 14.7-15.3 that would explane the mega high egts I am seeing.

 

Im thinking about getting a wideband myself. I would like to know exactly whats going on between oil pressure, temp, and pressure .. .... Holy mother!!........ its $400 for the wideband cobalt?