Thread: What tables do you need help with in the 3800 PCM?

If you have any questions regarding what a table does in DHP, HPT, or Tiny Tuner. Post it here and I will be glad to answer it for you.

2011 Silverado 5.3, Burst knock retard tables. They seem too agressive and can be the cause of seeing more than normal amounts of KR, do you agree?

Or are you wanting questions regarding 3800's?

^^^ burst knock air delta table...cut it down

Originally Posted by Fivefingerdeathpunch

2011 Silverado 5.3, Burst knock retard tables. They seem too agressive and can be the cause of seeing more than normal amounts of KR, do you agree?

Or are you wanting questions regarding 3800's?

They are a bit aggressive. Increasing the voltage in which is needed for the pcm to register knock helps with this. Most pcm's are set right around 120 mv. I will turn the voltage up anywhere from 300 to 400 mv's depending on modifications to the car.

Originally Posted by 91parkave

^^^ burst knock air delta table...cut it down

This works as well.

Originally Posted by Sven Sexman

Dyno Brian is THE MAN!!!

Attachment 12885

whats the price range look like to get pcm unlocked and tuned?

In the high and low octane spark tables, what determines which tables the car uses? a certain amount of knock?

Originally Posted by JoRoW99

In the high and low octane spark tables, what determines which tables the car uses? a certain amount of knock?

That is correct. Some pcm's will also use just the low octane table if the car is in reduced power or if there is a sensor failure. On LS engines if you unplugged the maf and force it into speed density all the time the car will run on the low octane table. Custom Operating Systems correct this with certain cars. A lot times tuners will copy the high octane into the low octane table so timing is repeatable. Obviously a good tune is important at this point to keep knock retard at a minimum.

Originally Posted by SnowFlake

I got one for ya.
Is it part of a normal tuning procedure to troll youtube comments and sling derogatory and vulgar insults at the content creator?
Just wondering.

Internet......

Making tough guys and know it all's since its beginning.

Ve lo Alt and be high alt . leave factory or do something to match with current ve table.