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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > The Woodshed

 
 
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Old 02-25-2007, 08:36 PM
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Default Re: Great results from PCM for Less tuning . . .

Quote:
Originally Posted by ChevyHighPerformance
"I'd like to know exactly what changes are done to the base map. Spill it all out. I train Harley Davidson techs on fuel injection tuning in my spare time, so I understand maps etc."

Why would a tuning company divulge what numbers they change on every tables? How does this make for good business sense?

"If you are not tuning on a dyno and have no dyno maps for the H3, then you are telling me you are winging it and probably doing nothing more that bumping up the timing or slightly modifying someone elses canned maps."

Actually, most real tuners (like LPE) tune so far on the dyno then finalize it on the track/street/strip. The problem is that the inertial dynos (and some other dynos) don't load down the vehicle (or motorcycle) as it is actaully loaded on the road. How do you account for the various riders' heights/frontal areas when loading down the bike when dyno tuning to get the proper aerodynamic drag for proper drivetrain loading? Yeah, that's what I thought.

"Sounds to me as if you guys are paying half as much for a hand held programmer and only getting a single map and no hand-held programmer. On top of that you have to deal with this loaner ECM crap. THen do it each time you want to make a change? How is this a good deal, I'd like to know?"

A Hypertech handheld or Jet performance piggyback isn't going to get you to the customization of a personal tune.

"You guys are paying this turd a rediculous amount of money for hardly nothing. He bought the tuning software, makes a 10 second change and charges you how much?"

Do you know these people? Have you done any research? So far I have not seen any complaints about PCMforLess on here, other H3 forums, and colorado/canyon forums.

"I tell you what, I will do what he's doing and 10 times better for less money. I will take my wifes H3 down to the dyno and custom tune every cell in the map (which I gurantee this turd does not do!) and completely blow his maps away and have the dyno results to prove it."

Shut up and do it. Post all of your table changes. Strap your wife's H3 on to your motorcycle dyno and see what happens. (pssst don't stand in front of the H3) Some simple questions:

1) What load are you going to place on the wheels for each cell?
2) How many VE tables does the H3 use?
3) The programming has a table that adjusts timing for different intake air temperatures. Is your dyno in an evironmentally controlled room so that you can tune every cell in the map for every possible intake temperature from -40 to 248 F (since this is the table range).
4) The programming has a table that adjusts timing for engine coolant temperatures. Do you have a coolant heater/cooler to adjust water temperature (over -4 to 284 F - since this is the table range) so that you can tune every cell in the map.

How are you going to do 10 times better? How do you meaure the improvement - horsepower gain? So, if PCMforLess produces 15 HP gain you are going to produce a 150 horsepower gain?

"Bottom line, if he's not dyno tuning every single vehicle, then you are getting a "canned" map and not custom tuned for your vehicle. Do yourself a favor and just by a hand-held programmer. they are very easy to use. If you want more than that, get the custom mapping done on a dyno."

Why would you pay twice as much for a canned map from a hand-held programmer?

-I never asked for the exact numbers
-It's called a "Load Controlled Dyno" since you don't know
-Exactly wht I referred to a custom tune on a dyno my unknowing friend
-Don't need to know them, just know what they are charging and not doing a thorough tune on top of that. Simply they are making changes by loading canned maps and no personalization is done in the form of a custom tune.
-I have access to auto & bike load-controlled dynos and even 4-wheel drive dyno with load control
-A map can be 10 times better because there is more than just wide open throttle increases. There are variations in VE, (MAP) Manifold Absolute Pressure, throttle position, timing, engine temp, outside temp, etc. There are thousands of different combinations and variances in these different cells, so there can be much more than a 10x improvement/comparison.
-Yes, the Dyno rooms are temp controlled, exhaust evacuation, and forced air provided for cooling. Each Cylinder is also probed and can be tuned independently if you want to get extreme.

And your post is nothing more than a desperate attempt....LOL
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