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Maxed out MAF...

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Old 03-08-2004, 04:36 PM
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Default What's a MAF?

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Old 03-08-2004, 06:15 PM
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Default A larger maf housing is not going to be the answer

unless you retune the chip for the different load readings the larger maf housing will cause.

What does your injectors look like, since APR uses 440's for the ndbw and the 225TT (360-380cc) for the dbw.
Old 03-08-2004, 06:16 PM
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Default So I guess I wont ever max out my fire hose 800cc injectors

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Old 03-08-2004, 11:18 PM
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Default they are->

black and blue, and a bit too short, so I had to use a special gasket to get them tight...

Of course I am going to tune!
But I maybe thought going with even bigger MAF before I do might be a good idea. So I dont have to retune twice if I find that MAF/injectors arent bigenough in the first place...
But still, I dont know if I want that much power with my stock rods
Old 03-08-2004, 11:22 PM
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Default I dont see how new SW will give a 710N more beating... I have ->

driven with OEM BPV for 3years chipped, K03 and 1.35bar pressure.
The 710N are supposed to be stronger than my old OEM...

"but when you get the right stuff, it'll chew up that rubber diaphragm & spit it out the tailpipe ;-) "

If diaphragm crack, its no danger for it flying into my compressorwheel, is it? It'll just crack and not hold boost, rigt?
Old 03-08-2004, 11:42 PM
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Default I can read this in block02, right? I've never really got these numbers right:

<img src="http://pictureposter.audiworld.com/40674/k03log.jpg">

What are the injection on times...
This are a run with my old K03 setup...
Old 03-09-2004, 04:38 AM
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Default It will give it more beating because the K03 software does not hold a set boost to redline.

It also pulls timing way down as you go up in rpms since the IAT's are also climbing. New Software is going to change all that allowing for much more air flow since you will make more adv timing and hold boost much longer.

When the bosch valve goes it will just rip and flap while it just lets the air out of the bpv.
Old 03-09-2004, 04:42 AM
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Default Might be that the tuner of that chip just chaned the value readings

so it looks higher with the vag.
Old 03-09-2004, 04:48 AM
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Default The 3" maf should flow enough air

when you go larger you will start having issues of getting the air to flow exactly straight during vacuum.

If the injecors are skinny then it sounds like they are the 225TT set which were used for the dbw because the injectors needed to sit deeper into the runner. You can always just go to the bosch green top which will work well for the ndbw.
Old 03-09-2004, 05:15 AM
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Default like I said before, its a MTM chip. maybe its more like a "copyright" ->

so that other tuners cannon read and "copy" the chip or something?
I dont know...
It couldnt be the second column that are the injector times? Those numbers seem to have propotions with the MAF-readings also...
Could be injector on times per revolution??
That would actually make really good sense with calculations...! Well that is if injectors inject twice each cycle (each two revolutions)
And the fact that it can supposedly reach 16ms also applies then...

Well this guy here at ES-tuning probably gets things fixed... He have tuned several engines to 500hp++

And I see how the 710N will get more beating because of the new turbo delivering MUCH more air, so that when TB closes the pressure on the BPV would get much higher than with the K03...
But mounting it after the intercooler should really help much! Much denser air/less flow.

Well Ive bought one, 45$ , so Ill testfit it soon, and try till it blows. if it does. Maybe it dont
If not I'll get a piston one. When mounted before the TB I'll get it changed in a minute

Jamez.


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