not sure on the window switch. there is arming switch, the boost ref line to the controller, and the injector ground wire that goes to the controller so it can pulse with the injectors. i think i will go out tommorow on a back road here and do a log and brake stall it. just to see what happens and i'll post up a screen shot of the log. its been high 80's here so it should show something good. in fact i'll doo one with meth on and one with meth off and see if ther is a temp diff also.

 

thats where mine is referenced too. I just wondered if other were before the throttle blade or something.

 

so i logged and 7psi is about as much as it will hold. 10psi it starts to push forward. even still 7psi is pretty good i think. meth on and off didn't do much. i think its because the duty cycle is too low for it to spray alot. iat's were the same either way. i need to lean it out a bit though. even with meth off it was 10:1 meth on wasn't much lower but either way it needs leaned out.
this one was with meth iat 90*

this one is with meth iat was 90* also

this one is no meth at all. seems to be pushing converter oretty hard being that its a tt3000 not a 3400 lol.

 

Where is the IAT sensor that it is reading located?

 

I don't think it's too low. Think about it this way...you have more load on the engine at 3300 RPM when brake stalling than you do at 3300 RPM in boost accelerating. The point of meth is to resist knock and allow you to run more timing...the IAT cooling is a secondary benefit. You're more likely to get knock with a higher load. I spray my meth starting at 5 psi, whether brake boosting or just driving.

 

sensor is located where the early models had there egr on the intake by the throttle body on the passenger side.



so you spray while brake stalling too then? is your progressive or just on/off? don't you have the devils own kit?

 

Yeah, I spray any time over 5 psi. It's progressive with boost. I have the Alkycontrol kit.

 

how much boost can get with a good brake stall? i need to look at some hptuner tunes for 2bar and see how people are setting up the ve table in boosted areas.

 

With the vacuum booster I could get about 7 or 8 psi before the truck started to push through. I'm hoping for more with the hydroboost.

 

little over 8 i push through my hydroboost. i'm sure with better pads and rotors it would hold more.