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03-13-2016
Since I'm starting to dabble into the 04+ modding now, I'm having a brainfart on something
The tables in the newer cars are different than the previous gen PCM's. They start out at -50kPa instead of the 0kPa, and I'm looking to work 42's into the file. Anyone have an 04+ file that I can look at to make sure I do this right?
I know, rookie question...but at least I'm asking. lol
03-13-2016
I have a stock 2005 GTP file with HP Tuners but I'm not sure if you asking for a stock file or a file with 42's already put into it.
03-13-2016
I have a stock 05 .bin file.
pm me and I'll send it.
03-13-2016
I've got the stock file, I'm looking for one with 42s already in it
03-13-2016
https://www.dropbox.com/sh/npa8brtuz...aFountain?dl=0
top link is a hp bin but it says 42's not sure if you can read hp or not and copy whats listed there or not.
03-13-2016
I have on with 60's I can send you tomorrow if you dont find one with 42's. May have an old one with 42's, I'll check on it in the morning.Originally Posted by Reptile
03-13-2016
Its a dead head fuel system.
Not rising rate like earlier cars
03-13-2016
The rates do rise on dhp. Only problem to me is that the tables don't make sense to me on the map curve.
03-13-2016
I don't understand the -KPa values either.
Jeff
03-14-2016
I understand what they're supposed to mean.....but my problem is that the higher the manifold pressure goes up, the more they richen in the stock .Bin file....and they basically show to go to an 80lb/hr injector? LOL
At least with HPT, you put in your injector size.....done.....Stupid DHP.
03-14-2016
remember the early fuel pressure regulator varies the fuel pressure directly related to the intake manifold air pressure.
because of this it negates the difference in pressure between the fuel side and the injector air/tip side.
On the later dead head steady pressure systems you end up with the injectors flowing more at high manifold vacuum then at high boost.
because at 7 PSI of boost... fuel pressure is effectively 50-51 PSI whereas at idle fuel pressure is effectively 64+
03-14-2016
Ok will someone explain the -KPa then because it's below anything the engine would ever see its -14.7 inches of mercury, -.5 bar and -7psi. It doesn't make any sense to me. I understand net pressure of the older systems remains the same and I understand that the with fixed pressure that the net pressure drops as pressure rises.
Jeff
03-16-2016
After messing with this for the last couple of days in my spare time, I was able to find an .HPT file that had 42's in it....and a lot of save/compare/unsave blah blah, I have it now.
If you're ever in DHP, you multiply the stock injector tables by 78.5% and boom.
If you're HPT, this doesn't matter, but for the people that use a 10 year old software system, it might come up again some day.
03-16-2016
if i could only get corn here......nice work.
03-16-2016
It's not even a matter of corn...it's that NOBODY has a .bin file for an 04+ car that I could look at.
Stupid maths....I hate maths.
03-16-2016
send that bin to bill for his drop box. you know he will give it its own folder.
03-16-2016
That's probably not a bad idea.
03-17-2016
Ok, so you multiply the table by 78.5 to get to 42# injectors, but why does thr table even start out negative. that's what I don't understand. I'm a little slow I guess.
Jeff
03-17-2016
That's one of those things that I'm just gonna file under the "that's just the way it is" catagory
03-17-2016
So I'm just going to have to guess that the KPa table is just scaled incorrectly in DHP. I wonder if it should be 0-160kPa. I know that earlier years only show 0-100 as well but how do you scale that past 100 or are you just assuming that the flow above 100 kPa is the same past that point since its net pressure is the same?
Jeff
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