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These hardware changes affect the real volumetric efficiency. That's why the VVE tables need to be dialled in. Similar for the MAF, even though it's measuring actual airflow, the system model still...

Airleak after maf. Pipe off or slightly off

Flash the new PCM with a corvette appropriate oem file with tech2.

Then read that file. Modify this file and then write the calibration.

So the associated calibrations must be different as well?

Is the blade colour linked to a different OS somehow otherwise that makes no sense whatsoever.

I run a 103 on my 09 z06 with a calculated area scalar of 7405. Appears to work as expected?

Hey - wont let me access that. `Max downloads reached' and sorry we couldn't process your request.....

If the HPT content is the same as the M157 I`m looking at we only have access to a tiny number of the maps. You effectively have 2 sets of the same maps for torque to load and the optimum torque...

Hi

yeah could be, usually 2024K.

Its the calibration file in Binary format *.bin.

What you got?

So some serious tumble-weed in the Mercedes section! Which is a shame.

I think it would be fair to say HPT isn't capable of useful updates particularly on the M157 application?

I guess we need...

So can anyone help with tuning for a basic full load performance increase, we are not adding any hardware at this point just looking for a modest performance bump.

Hi all. So linked to my post; perhaps some of you on here could help with a process that works?
...

Humm. Not much useful stuff there?

Hi all. Just looking at one of these for a friend.

We`ve loaded the unlock file and read the basemap, attached here.

I note there's not much info on here on basic tuning procedure; I`m...

Hi all. I see the VCM scanner looks to have a live spark adjustment function albeit for retard only.

Has anyone used this for live spark tuning at all?

You could add 10degrees of timing to the...

The sensor is looking for oxygen content. Gasoline scale doesn't mean anything.

At lambda 1 with e85 the AFR will be reported at 9.5.......

All true!

I guess I was more trying to help anyone interested in what the underlying physics for timing looks like.

Running the engine on dyno allows you to control the combustion parameters...

Stoich value for e85 is around 9.5. E50 ~ 12

Within the industry MBT is defined as minimum timing for best torque. Its not someone's opinion lol!

Pick an rpm and a load. Any rpm or load. Run on an engine dyno at that point steady state....

If you make more torque with increasing timing advance then your not at MBT yet.��

When we characterise an engine from scratch we use a high enough octane fuel to allow you to find true MBT over...

Wow some long posts!

MBT stands for minimum (timing) for best torque.

This means finding the peak of the torque profile at the given rpm and load.

It is independent of lambda.

In an...

Did you change all of the vve tables to be the same?

Is your MAF and VVE dialled in well? Absolute first thing you need before working on anything else.

Well you can do a number of runs in one logging session but make sure to use the charts along side the graphing function.

I usually do 3-5 runs in a recorder at a time during initial set-up /...

Sub8 said:
1 Minute Ago
Don't worry about the filtering. Concentrate on getting good quality data by your drive style and road you're using. Single smooth throttle movement and then not moving...