HE351 code for me78569

[me78569]

reading through it now.  thanks!

[Rx7man]

Hope it's of some use to you... Included is the "mapf" function that is a floating point version of the map() function.. I use it a lot

[me78569]

Yep,  We will see what I gain from it, always good to see another way.


I think I am going to ditch the multi curve tuning of the turbo, rather I think I am going to make a "fueling Offset" that is defined by the Potentionmeter position .  The base curve will be adjusted to effectively create useable curve for your fueling. 

[Rx7man]

I currently have it set so that it looks at the 'base map' which is of TPS vs RPM for a raw turbo position (I call it the "position map"), and a second map, also of TPS vs RPM but in boost PSI (I call it the "boost map", and the potentiometer on the dash adjusts how much to pay attention to the boost map... so far I've found it behaves better when I completely ignore the boost map, and just set the position.

Of course after all that I still have a 'maximum boost' setting that starts to open the vanes by about 30-50 position units for every PSI over the maximum..., and an overspeed compensation that  limits based on acceleration only from 130-135,000, and by both acceleration AND speed above 135,000 RPM..

[me78569]

Got ya, 

What are your stable(ish) shaft speeds are you seeing at 30psi? 35 psi?

Vane vane position do you typically run at the 30/35 psi mark?

[Rx7man]

I don't have the sensor working at this time.. I'm keeping my boost under 30 PSI until I get it sorted.

I'll pay attention to my vane position next time I go for a drive.. it's been slick roads out here so I haven't been able to get on it much.. last trip to town I was in 4x4 and was breaking all 4 tires loose in 4th at 50mph, and it felt like doing at in 5th and 65 mph was a serious possibility, and I don't feel like smashing this thing up.. I got waaaay too much into it now to make it what I want.

[me78569]

understand that. 

Since we don't really have a turbo map that is worth a damn, I am curious what others are seeing to verify my readings. 

I see guys all the time running 40psi / 45psi according to what I am seeing that should put shaft speeds 140,000-155,000 so I was curious.

[hakcenter]

FWIF I get 40psi @ 130k

[Rx7man]

Good to know

[me78569]

What vane position for that?

[hakcenter]

For what? I'm confused.

You guys are way too into this lol.

[me78569]

What vane position do you typically see as your stable wot position.

Does it require 18cm to hold 40 psi at 130 k?

20? 16? Haha just curious

[hakcenter]

Depends on what gear I'm in. Usually in the 200s

I use accel to dampen its acceleration rate, since in the lower gears it'll sky rocket.

[me78569]

So it spikes to 130,000 then jumps from the 400 to 200 (ish) position and is able to hold boost? 

I loose way to much drive pressure to sustain boost if I do that. 

[hakcenter]

The basemap is not far from my personal map.

My top end is slightly more extreme but yes I step it down