|
#1
|
|||
|
|||
WI and running rich
I read a thread that its not a good idea.. Here is my setup:
I did have the injection nozzle after the Intake Air Temperature sensor so the PCM would not see the lower temps. But as you can see, it is BEFORE the sensor now close to the coldside outlet of the intercooler. The intercooler is a AGP direct fit with race core. (4.5'' core) My injector is 280-340 cc/m (CM5) Running a progressive controller. Pump turns on at 9psi @ 25% duty cycle Then I have the MAX setting at 18psi @ 100% duty cycle. I spike around 23 ish but falls to 19 by redline. Pump is a 250psi pump set at 200psi. It is mounted in the trunk: About 14 feet of brake hose line before the upper pressure pipe. The car: Dodge Neon SRT-4 with the Mopar Stage 3 upgrade. No tune, using the factory Stage 3 PCM parameters. Running water injection for the cleaning properties and being able to maybe run more boost int he future with a different WGA I have. AFR's are in the 10.3-11.0 by redline. Normal for Stage 3 to run rich. Thinking of running more boost since I am only seeing a .5kr around redline. IATs are very stable and seem to go down 5 degrees or so after eveyr pull. Stay in the low 90 degree range. Any ideas on what my setting should be? Should I run more boost since I am running rich? Remember, no tuning device. 100% distilled water in tank. Thanks for any help! |
#2
|
|||
|
|||
Re: WI and running rich
I belive you are running too rich to obtain good power. Dumping fuel for suppressing knock is not a good idea.
Ideally you need to run leaner and add water to suppress knock Since you cannot tune the fuel map. May be you can try the following: 1) Increase boost beyond the map sensor range 2) clamp the map sensor output so PCM cannot add fuel based on boost. 3) reduce fuel line pressure.
__________________
Richard L aquamist technical support |
#3
|
|||
|
|||
Re: WI and running rich
Thanks for the reply!
The Mopar Stage 3 fuel setup consists of a fuel rail with a FPR built into it. Once the car goes into boost it raises fuel pressure up to 75psi. No way to really alter that. There is a handheld tuner called a DiabloSport that I am looking into getting. Will be able to really alter things with that. Stage 3 consists of a 3 bar map sensor and a new TIP sensor among other things, like bigger turbo/manifold, injectors, and a new PCM. I got a couple replies on a Dodge forum...kind of confused about even running WI now. Quote:
Quote:
Quote:
|
#4
|
|||
|
|||
Re: WI and running rich
The FPR will only work if it is allowed to see the manifold pressure. You just bleed of some of the pressure that goes into the upper chamber, Something like a MBC may work just as well.
I wouldn't recommend you running water or methanol injection. You will loose power. Quote:
__________________
Richard L aquamist technical support |
#5
|
|||
|
|||
Re: WI and running rich
Should I try raising the boost? Or don't even mess with the water injection until I get the DSP tuner? Maybe lower the duty cycle?
I took off the pipe the other day where the nozzle is.. and a little bit of water came out. A bit of nasty sludge in there too: I noticed a couple times that my car had a hard time starting. I mean it started right away, but it was a bit sluggish. |
#6
|
|||
|
|||
Re: WI and running rich
If your reservoir is mounted too high, water could be leaking into the inlet tract all the time.
Are you sure there is no adjustment at all on the FPR ? What about using a piggyback ecu so you can have some control over fuel and timing ? And whilst this perhaps isnt the best route. You could create an air leak/bypass for the MAF, so it doesnt see the entire volume of air the engine consumes, which would cause it to run leaner. But you'd need to tread carefully with that |
|
|