dsp5 tables

[killerbee]

, they do work together,

I have not found that to be the case. Experiment: change all target values to 10, and go for a ride, and tell me if anything feels noticeably changed.

If this is true, that space should be freed up for something that does have a switchable value.

[LarryJewell]

I've already done that................

think about it for a minute, you still have a max table and a min. table for the vane to work within, target is just a suggestion, the vanes will still "hunt" for an appropriate position within the set parameters to make boost.

I would be for getting rid of the desired boost table on the dsp switch positions and have target vane and max vane in its place, I feel this would allow more flexability in tuning.

[killerbee]

get rid of desired boost switchability???

Are you just playing with me? That's 50% of the air/fuel equation.

[LarryJewell]

get rid of desired boost switchability???

Are you just playing with me? That's 50% of the air/fuel equation.

no, use the desired boost from the base tune, use the max and target vane table for fine tuning boost in the dsp tables.

[killerbee]

changing allowable vane position doesn't do anything to change boost. it defeats the whole purpose behind dsp, different power tunes...you need to change air if you change fuel. Vane tables can't do that.

[LarryJewell]

you might want to go test this then, I have, its easy enough to do with a dsp tune

[killerbee]

I did. Left boost constant at 20 psi. I changed max vane to 100% across the board for the "after" run. I get the same 20 psi, before/after. Exactly what I would expect to happen.

I then changed target vane to 0 everywhere. It didn't change anything, peak boost identical.

Did I test the wrong thing? It only reaffirmed that "desired boost" does, in fact, control boost using vane settings. It also proved that you can not modulate boost by adjusting vane tables, although you can increase boost capability by upping max vane, but that is not the issue, nor is it "control". It is just removing a limitation is all. This can be done in the main tune, leaving switchability in the dsp tables, using desired boost.

Let's just disagree on this one.

[LarryJewell]

I did. Left boost constant at 20 psi. I changed max vane to 100% across the board for the "after" run. I get the same 20 psi, before/after. Exactly what I would expect to happen.

I then changed target vane to 0 everywhere. It didn't change anything, peak boost identical.

Did I test the wrong thing? It only reaffirmed that "desired boost" does, in fact, control boost using vane settings. It also proved that you can not modulate boost by adjusting vane tables, although you can increase boost capability by upping max vane, but that is not the issue, nor is it "control". It is just removing a limitation is all. This can be done in the main tune, leaving switchability in the dsp tables, using desired boost.

Let's just disagree on this one.

using the max and target together, you can control boost, given a reasonable desired boost table. All I was getting at was I would rather use a constant desired boost table from the base tune and use the max and target tables to control the results in dsp tables, which is easily done. I'd hate to see what your drive pressure was at maxing out the vane table, but then thats a different topic. Ultimately, having the desired boost, max and target vane tables available in the dsp settings would be great, but i'd settle for the 2 vane tables.

your right, we'll just disagree on this one.

[killerbee]

I'd hate to see what your drive pressure was at maxing out the vane table,

identical in each case. as is vane position to obtain said 20 psi of boost. dp would have to be the same.

[LarryJewell]

and how are you reading drive pressure