Um, again, did you tell Brian about your issues or just start programming yourself?
From my understanding, it could take two or three or hundereds of chips to get it completely dialed in.
CK5
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Chip Burning - 7747. Whom do you recommend.
- Thread starter azblazer
- Start date
Um, again, did you tell Brian about your issues or just start programming yourself?
From my understanding, it could take two or three or hundereds of chips to get it completely dialed in.
dave w
1/2 ton status
It has taken me 6 chips ( 6 different .bin files loaded in the Ostrich 2) to get dialed in for my driving style / conditions.
The initial .bin file I wanted programmed came from data logging results. I had calculated fuel maps using this formula ... =(Current Fuel Map*averaged BLM)/128. For example 1600 RPM's @ 25Kpa was 121.4 averaged BLM which was rich. Current fuel map for 25 Kpa 1600 RPM 55.6. So the new fuel cell map will be (leaner) 52.6 = (55.5*121.4)/128
A few hours of work with Excel to do all cells. A few hundred guesses, or a few hours with Excel?
dave w
Did you tell Brian the first chip he made you didn't do what you thought it should do?
xCaliK5x
1/2 ton status
good info.
chevyuser74
1/2 ton status
brian has worked with me just fine we are on the 3rd chip, i just keep talking to him, telling him what i notice and sending him logs. all very minor stuff, trucks runs better than it did before i redid the engine
Jason 4x4...i forgot all about Az. Tpi...they have a dyno and all if i member right.
Dyeager535....i have often over the years visited the Moates site as he makes some
first class hardware to get chip burning out of the stone ages. My issue is being handy with electronics...i'd love to take a stab at it but by the time you spend the 3-500 on
hardware and software to do it...its still a mystery and secretive community to learn how to burn your own chips...ie: not the act of burning a disc...but being able to look at your recorded live road test data and knowing where to start...and if i change X...knowing that X will effect B/T and Z at the same time. If i hand a somewhat short book to study along with the bare min calculations ie: fuel flow per second and all that other stuff you need to know i'd just buy the Moates emulator and get crackin...
Gotta understand the logic before you can play with it...
DW
Dyeager535....i have often over the years visited the Moates site as he makes some
first class hardware to get chip burning out of the stone ages. My issue is being handy with electronics...i'd love to take a stab at it but by the time you spend the 3-500 on
hardware and software to do it...its still a mystery and secretive community to learn how to burn your own chips...ie: not the act of burning a disc...but being able to look at your recorded live road test data and knowing where to start...and if i change X...knowing that X will effect B/T and Z at the same time. If i hand a somewhat short book to study along with the bare min calculations ie: fuel flow per second and all that other stuff you need to know i'd just buy the Moates emulator and get crackin...
Gotta understand the logic before you can play with it...
DW
dave w
1/2 ton status
I have an example of how I tune a chip. I figured out how to use DataMaster Datalogging software. I figured out how to get the Histogram information, (which cells are rich / lean) then calculated the change. If anyone would like more details on adjusting the fuel map I can post a tutorial. Changing the cam / intake / exhaust will require changes to fuel map. Knowing which fuel map cell is rich / lean is what the data logging will show. The Histogram will provide a numerical number how much lean / rich. I use the formual (Old Fuel Map x histogram BLM) / 128.
If anyone wants, I can use the internet to link computers (http://www.mikogo.com/Welcome.aspx) and talk on the phone to work through the tutorial.
Dave...right on...i'd rather learn it myself and tune myself than pay top dollar for someone else to do it.
Currently in the middle of this swap...last thing to do before i move to phx....
Once i get there and settle in i'll need to order the emulator from moates and log some data....good thing i modified my puter stand from the 06 dmax to fit the 79 K5.
DW
Currently in the middle of this swap...last thing to do before i move to phx....
Once i get there and settle in i'll need to order the emulator from moates and log some data....good thing i modified my puter stand from the 06 dmax to fit the 79 K5.
DW
I think a "basic" (easily understood for those just getting into it) tutorial would be great. Might want to check thirdgen.org and see if Traxxion's article or any others isn't redundant, but if you've got a different way of doing things that works, certainly doesn't hurt to share.
I was hoping since said chip is rather archaic....that there would be some sort of windows based system these days to integrate the tbi-tpi system with minor changes to the harness and have a new ecm that has windows friendly software that might be more friendly and adaptive to gentle masaging.....all in favor or written around the 14.7 goal...
just wondering how this all worked out .just bought a 1995 c2500 5.7l tbi for my travel trailer tow rig, been reading and checking information on trying too waking it up a bit more .nothing too fancy exhaust ,air ,distributor, wires ,plugs,coil and maybe a chip,if it makes a difference,what would be suggested?
dave w
1/2 ton status
I have programming information on some of the "Performance Chips". For the most part, the timing is advanced about 5 - 6 degrees from the factory chip programming. Setting the engine timing from the factory setting of "0" (ZERO) degrees TDC to about "4 ~ 6" degrees BTDC will help.
I posted a screen shot of a "Performance Timing" table for a 94 K1500 5.7 liter. The 95 2500 will be almost identical.
dave w
I posted a screen shot of a "Performance Timing" table for a 94 K1500 5.7 liter. The 95 2500 will be almost identical.
dave w
thanks for your reply! so if i bump timing 4 to 6 degrees would have same result as a chip? don,t realy understand the graphic could you explain?
dave w
1/2 ton status
Almost the same result, the performance chip has other changes besides timing. There is no other short cut ... low cost substitute to a performance chip other than to just bump the timing 4 to 6 degrees.
I posted a screen shot of the actual timing tables from a 94 K1500 5.7 liter aftermarket performance chip. The timing table is divided into cells, based on the engine load and engine RPM. Engine load is measured by vacuum (shown on the timing table in the metric vacuum measurement of Kpa) vs. RPM. (Kpa is the abbreviation for Kilopascals) 100 Kpa is Wide Open Throttle ... 25 ~ 30 Kpa is normal vacuum for closed throttle. The computer sets the engine timing based on the Kpa information from the MAP sensor and the engine RPM form the distributor ignition module.
The two timing table are; Open Throttle which the computer uses when the throttle is opened more than 2.75% from the Throttle Position Sensor, and closed throttle which the computer uses when the throttle is opened less than 2.75% from the Throttle Position Sensor.
dave w
Found this thread in a search and can't beleive the same problems from 4 years ago are still the norm for these mail order chips?
It only takes me 1-3 shots to perfection with data logs! If I have the truck here with a completely built modified engine it's only half days work!
That's just BS! Maybe 200-300 guesses! Or 200-300 to learn how to tune?
It only takes me 1-3 shots to perfection with data logs! If I have the truck here with a completely built modified engine it's only half days work!
Nice Necro. Yeah we live and learn.
After learning how and what to do to log data, burn my chips and buying the equipment I ended up doing a better job then all the chips I got from the mail order guy.
After learning how and what to do to log data, burn my chips and buying the equipment I ended up doing a better job then all the chips I got from the mail order guy.
