High int, but 128 blm. What does that mean?

[1project2many]

It may mean the calibration you're using is set up to allow wide INT corrections before the BLM changes. We've seen this before as a way for a tuner to make a calibration appear perfect. I would address these cells. The calibration appears fairly lean in those cells.

[f85gtron]

Ok, thanks. I'll keep working on them.

[1project2many]

Did you start with a stock calibration or did you buy one already tuned?

[lionelhutz]

Did you start with a stock calibration or did you buy one already tuned?

Are you wondering what the max allowed BLM value is? Wondering about a tuner that locks it to 128 so the tune looks right.

[1project2many]

Are you wondering what the max allowed BLM value is? Wondering about a tuner that locks it to 128 so the tune looks right.

I am.

[f85gtron]

Are you wondering what the max allowed BLM value is? Wondering about a tuner that locks it to 128 so the tune looks right.

Both the blm and int move. Sometimes, the int will be 135 and blm 119, like they're fighting each other. The int moves super quick while the blm seams delayed at times. I can't get the idle blms right, if i pull too much fuel, the motor will die when i push in the clutch and it returns to the idle table, but not at the normal ve table.

I'm dialing it in and an getting close. With the help of this forum, the car Feels sooo much better and I'm learning tons. You guys rock!

[f85gtron]

Should i skinny up the int and blm ranges?
Here's what I'm looking at:

[lionelhutz]

Double check the min and max allowed BLM scalars. Typically, they are something like 108 and 160 from the factory. Certain mail order tuners have been known to set these closer to 128 so that they can say check your log, the BLM values are close to 128 so my tune must be good.

The BLM and int can be quite different at times. Don't forget, you may be looking at a VE table that uses 200rpm and 5kpa steps for the cells but there will only be something like 9 or 16 BLM cells to cover the whole VE table. So, while inside a single BLM cell you could got to one cell of the VE table and the BLM will change to the correction factor for that cell and then you move to another cell and the BLM has to re-adjust to the correction factor for that cell.

The limited BLM table is why you want to get the VE table decently tuned. A BLM cell has to correct a whole bunch of VE cells and a single correction factor doesn't fully correct all the VE cells. If there was a BLM cell for every VE cell then it wouldn't matter because the BLM could correct each VE cell.

[f85gtron]

Did you start with a stock calibration or did you buy one already tuned?

I purchased a mail order tune, based on my mods, and the tuner got close, given he was flying blind. I'm tweaking to make it perfect, now that I'm learning enough to jump into tuning.