I'd like to check out local cars similar to mine. Specifically, I'd like to see cars that have a K04 with stock injectors and compare them to cars with larger injectors.
Right now I use a 5 bar FPR with stock injectors. The fueling is the limiting factor on my car.
I know GIAC has a program for my car that uses larger injectors, but many people have had trouble getting the fueling right with this, and it requires the use of a FMIC. I have a FMIC, so I could do this. I just don't have great faith in the fueling/programming consistency after researching others' experience with it.
How else could I make more power? Does anyone else out there offer a big-injector program for a 99.5?

get a stock ECU, go to a place like MAC's and tune it there, it would be tuned for altitude as well.

Fueling may be an issue, but I think that in the end that snail is only going to kick out so much more CFM till it just runs out of breath even if you are sporting 550 cc injectors.

You could also try getting larger injectors and running them with the 4BAR fueling program, actually. Of course send the injectors off to RC and have them tested at different pressures at both idle and WOT to measure the actual spray volumes

then bounce that figure off stock injectors on a 5BAR fuel program will do at both idle and WOT. Given the difference in cc flow rates you should be able to tell your fueling advantage of going with the larger injectors at less pressure.

There is a way to plot that information in some sort of delta graphically to give you a range, then adjust boost accordingly and monitor A/F ratio.

You could swap out the N75 and loop it, and run a stand alone MBC instead to see what your boost pressure should be after playing musical injectors, to match your increased flow rate of fuel.

Based on that you can do some modification to the tuning of your ECU to make a program that now fits your setup.

On a side note, if you have a VAG and some spare time, I was wondering what your block 32 readings look like...

I'm really looking for something that's plug and play, ideally. The K04 has more in it than what I'm asking of it now.
Sorry but I don't have a VAG-COM.

I think at some point, someone is going to go to the trouble of doing what I described, and make it plug and play.

We're starting to see some great examples of the potential of this motor with some of the new tweaks that are going on.

and hes in a b5.5 passat...so very similar engine (DBC, etc) to the b5 a4. u might want to hit him up on his thoughts, since the BI program for k04 uses the same injectors as the k03. he also has a reasonably similar setup...FPR, but no IC. he logs fairly regularly so that may be a starting point as far as a resource goes.

but you know that. I have the standard GIAC file for the 5 bar FPR and stock injectors. I do have the option to upgrade to the PC-16 file for ~$290 which would include the 330cc injectors and a 3 bar FPR. I've been holding out on doing the upgrade for a few reasons, the major one is that I'm not sure my IATs are low enough. I've met another local guy with a K04'd 99.5 but that was about a year ago and I can't remember his name. His car was sanitorin (sp?) and I believe he was running GIAC with the stock injectors as well. I think PC-16 is the only option and from what I've read, that file was written with stock injectors but people run the larger ones to prevent leaning out.

We still need to get together some time. Got anything going on Friday afternoon? I have an appointment near your work, so I'll be in the neighborhood. Maybe a short happy hour with our crippled friend De?

I have a customer with your program and the FMIC. It seemed on his that the IAT was too high and always throwing it into limp mode. I have a flash version of a file Garrett tweaked on that runs great here in SLC. His is a 2001 though so it may be a little different. He will however probably be going with the injector/big maf software soon.

I don't know anyone with a K04 for your same year around here though.

I usually leave work at about 2:30 on fridays and I'm going to a birthday party around 6:30 that day, but I could meet up in between.

You say you have a customer with the same software I have. Do you know I use an MTM chip?
I have never gone into limp mode and never throw codes.
What software does he use that he has high intake temps and throws codes?
Yes, the 2001 is significantly different.
Nonetheless, I would like to hear what happens with his car.
Thanks Hans.

=)

He is using a GIAC flash but was requesting a little too much boost for this altitude it seems. Turned the requested down and it runs great. I also beleive with their software they also like to run a FMIC but the data logs from before the intercooler show IAT just at tolerable for a 95 degree day so it we played it safe.

Yeah, where's he been? Haven't talked to him in an while.
I'm really looking for someone that has non-MTM software for comparative reasons, but it would be fun to drive his and see if I can tell any difference.

Plus, he has a 2001 avant, which is "slightly" different than yours.

It seems to run so smooth. Do you really think you will be happy with the other software companies? MTM might put out a little less HP, but the trade off is the smooth boost curve and the linear feel the MTM software produces. How many miles on your motor? Do you really want to run a software that pushes it even harder?

Again i am just asking. I am not saying don't try out a different software, but what you ahve works well.

You're absolutely right.
But c'mon...who do you know that doesn't want more power? It's a common sickness in on this board, right? =)
I am very hesitant to change. If I could find something I was very confident in, I would consider it. But what you said is the exact reason why I haven't gone with the PC-16 GIAC file. Yeah, it might make a little more peak power, but is the air/fuel right all the time? Does it have the low-end torque mine does? Is my turbo going to last as long with that? Does the throttle act like an on/off switch?
There's a lot that goes into making good software, and I'm not yet convinced there's anything better out there for my priorities.
Plus, just because the peak numbers higher than mine, that doesn't mean its necessarily faster than mine. Area under the curve counts for a lot in my book, and its been proven time and time again. There's a reason I still run what I do.
That said, I want more power! I think there's a lot left in the K04. Last night my max boost was around 16 psi. I was just hoping to get that up a couple, maybe three, points with the proper fueling, timing, etc.

you should, here in CO, be able to hold aound 18-19psi through the band. crank that up now and ur lean as free range chicken...u already know this.

i have spent the better part of the past year trying to get just a hair more from my k03 (mostly via software tweaks for elevation)..and i did...but its done. I understand your need to get a little more...and even with some moderate upgrades you should get there no prob! stay the course!

kits right now.