AEM Ultimate Resource Thread>>>>

[slava]

Originally Posted by FastOldGuy

I hooked a snow Stage 2 MAF injection unit up to read the 0-5 volt out put from the AEM MAP sensor. The snow controler sees the voltage 0-5v from the MAP then turns on the pump so you can adjust the pump to come on at ..say... 8psi and to be full blast for by 14psi.

I understand, but there is still a problem with the setup at least theoritical. 8PSI does not equal air flow. and not sure how good is the spraying patern when the pump runs at low PSI.
I was thinking about to use fuel injector to spray into intake and control it by either secondary injector map or boost controller function.
Do you run alky right now? how is the performance during the transition period when thepump comes on and off?
Will the windshieldwasther fluid (water/meth) affect a/f readings?

[slava]

on the side note... i run stock turbos and intercooller and did a couple test runs since i just put 680cc and can run it WOT now.
The air temp jumps from 110F to 150F in no time and knock comes to town with 12 a/f ..
The A/F ration in 3rd gear is stable but 1st and 2nd it jumps around because of air and fluid dynamics. I wanted to see how everybody else takes care of it and asked to post 1-3gear logs...

[FastOldGuy]

Originally Posted by slava

I understand, but there is still a problem with the setup at least theoritical. 8PSI does not equal air flow. and not sure how good is the spraying patern when the pump runs at low PSI.
I was thinking about to use fuel injector to spray into intake and control it by either secondary injector map or boost controller function.
Do you run alky right now? how is the performance during the transition period when thepump comes on and off?
Will the windshieldwasther fluid (water/meth) affect a/f readings?

I'm using 50/50 HEET/Distilled water. I do not notice any change in performance when pump is activated. The purpose of progressively increasing the pump presssure in the 8-14 psi range is to not overwhelm the engine as PSI builds boost. The system works seamlessly. I have not run the engine real hard at this point however as the AEM is not fully tuned yet. But I have no knocks at this time on 93 at 17psi. I have not tried 20psi yet. I checked the spary pattern with the nozzle out of the Y pipe ..very fine mist patten at all pressures.

[BlackStealth]

Originally Posted by slava

I was thinking about to use fuel injector to spray into intake and control it by either secondary injector map or boost controller function.
...Will the windshieldwasther fluid (water/meth) affect a/f readings?

The fuel injector would have to be stainless steel construction inside. Lucas injectors would make a good choice as its stainless steel inside. Or you could spend approx $230 for a high speed water solenoid (works like a fuel injector).

Yes the a/f readings do get messed up slightly. You have to lean out the mixture a bit. ie. from 11.5 AFR to 12.0 AFR as an example. Timing should be advanced a bit too.

[mjannusch]

Originally Posted by slava

I wanted to see how everybody else takes care of it and asked to post 1-3gear logs...

Tried, but the log I have is too large to attach.

[slava]

Originally Posted by mjannusch

Tried, but the log I have is too large to attach.

email: slavka001yahoo.com

[slava]

Originally Posted by antero

The fuel injector would have to be stainless steel construction inside. Lucas injectors would make a good choice as its stainless steel inside. Or you could spend approx $230 for a high speed water solenoid (works like a fuel injector).

Yes the a/f readings do get messed up slightly. You have to lean out the mixture a bit. ie. from 11.5 AFR to 12.0 AFR as an example. Timing should be advanced a bit too.

Lucas have stainless?great.
The highspped water solenoid sold by aquamist..are a little too pricey.
The reason i would to have injector is that you can accuratly control spray quantity with AEM. Also the contruction is simplified since the pump will prime injector straight up with 100% power ,no additional solenoids, nozzles and controllers.....anyway, that is an ideat at thispoint. I have some old solenoids from my chevy i will experiment with them to see if it even feasiable to do that.

[1veryfastvr4]

yea it is a aem 3.5 bar

can some one point me in the direction of an intakeset up or new filters? i had the kn that went to the maf but i waan get it out now but the filter is to big for the stock black intake y thingy!

[imztt]

Originally Posted by 1veryfastvr4

yea it is a aem 3.5 bar

can some one point me in the direction of an intakeset up or new filters? i had the kn that went to the maf but i waan get it out now but the filter is to big for the stock black intake y thingy!

Having some problems fine tuning idle, and throttle. It seems when I press the throttle there is a delay in the reaction to the motor. Gets a little better as the car worms up. Just wondering if there was a table to play with for these type of problems. Overall AEM is pretty cool so far. But theres a lot of work as far the "plug and play thing". It only refers to the harness after that you better know what your doing.

I have my AEM map sensor and FPR tapped in the same line. Just wondering if that ok.

[slava]

Originally Posted by 1veryfastvr4

ok i need a base map i should have it all installed bye sunday if im not waitin on everything longer than i expect! these are the mods not sure what all you need to base it off but here are all mods fmic,dp,exhaust,fuel pump 255,aem ems , w/ ait wb o2 uego 3.5 bar, intake runners, not sure what you all need to base it off again so please help out , i also have injectors 780cc coming just not sure if i should put them in yet on stock turbos?

Here is my latest map for AEM 3.5 bar, GM IAT and 360cc.
If you put 780cc you just need to wizard to change from 360cc to 780 and set the injector/battery ofset in the Setup->injectors. The start widthpulse should be ok.
Remeber that the sensor readings are different for every sensor/car, injectors are different, fuel presure.....you have to watch WB readings to make sure you good. Low load should be aroudn 16-14 AFR, high loads -11.5-12 AFR.
Go through the various map settings and ask questions if you do not understand or need explanation. Best of luck with AEM.