Thread: Timing advance question

buy a meth kit and spray just water, no tuning needed, cools the air charge and the blower.

i got the aem kit with progressive controller. has a start and max psi settings for the spray.

theres a guy on fb who runs just water, has a temp sensor installed and it lowers the temps for sure.

if you wanted to add meth too you need a tune and a wide band and id be willing to bet you could drop to a 3.2 pulley. the meth raises the octane to like 105 when using 93 pump gas.

and if you can read and follow directions, the aem kit is easy as pie to install. best to drill and tap the blower case for the injector too. you can take the tb off and drill and tap it with ease. blower still on the engine.

Just get the check valve for the meth kit...

i dont have that valve. and also dont have a issue. ive got my pump off unless its pumping fluid. my tank will last as long as a tank of gas pretty much, unless in wot all the time lol at the track i sucked half it down in 4 passes.

When the pump is "on" it's just internally bypassed. Basically just keeping it primed, from my understanding. When it is triggered then it increases pressure, which pushes it past the valve in the injector. Problem is, we installed it into a hot blower housing. And I believe the check valve is in the black part, at the end of the injector. I took it apart and all it is, is a couple little pieces of plastic. Probably fine if you install the injector into your intake, which doesn't get hot. Doesn't take much heat to warp plastic.

I confirmed because I can now suck through the injector, where when I first installed it I couldn't. I doubt it had anything to do with my current situation, but I'm not trusting it again and I'm installing a secondary check valve on the line.

another factor in this equation is torque management and cat converter management, the PCM will control spark and fuel to help protect the transmission (torque limiting / abuse mode) and cat temperature overprotection.

Your results are typical for stock. But if you're dropping the hammer at 50 mph then (1) the stock settings for power enrichment suck and you will be underfueled and (2) the PCM _will_ use knock retard as the mechanism to protect the transmission.

Sounds like a mostly stock, untuned car for me. There are no tables that allow you to pull timing dependant on gear, so you are still just seeing an untuned pcm pulling timing because of heat. Unless you are looking at timing at the shifts, because torque management will pull timing at that point(you are ant that), but it should quickly come back up.

When I was tuning in 95° weather, even with proper fueling, I would start seeing knock if I did back to back runs.

Are you getting your gears miss matched? You won't hit 4th gear under full throttle until like 120mph. So a 50-90mph pull is gears 2-3.

Not that this matter much, these cars have extremely long gears. Each one does like 40-45mph with 2.93 gearing.