Yeah but then you can't do the good re-shaping of the pedal response. Unless you did it mechanically somehow (e.g. progressive spring behind the pedal?)

I mean, one to one is preferable for me, so I like ETC off.

One-to-one is certainly better than the stock ETC. What I'm saying, though, is: if you had a true throttle cable (as opposed to ETC Off, which tries to simulate a physical throttle cable), you'd still want to change the cam(s) at the intake butterflies to re-shape the pedal response to be more optimal for track use. With just ETC Off you get no possibility for that kind of adjustment.

I went ahead and scanned from the book that got me thinking about this. Pg 36 of "Think Fast" by Neil Roberts, which illustrates what I'm trying to say:

http://www.the370z.com/members/wstar...ast-pg-36.jpeg

GOTCHYA.

Well, have we confirmed that ETC OFF is in fact 1 to 1? I've assumed that it is, but I don't know for certain. Have you ever mapped ACC POS vs TPS? I suppose I could try and log it myself.

Well, we have no idea what happens with ETC Off, really. I mean, we know it disables all the wild throttle interference from things like VDC and SRM and Torque Management, and more-or-less opens the virtual butterflies as commanded by the pedal. I don't think anyone's experimented to see if the ECU's throttle table still affects that pedal->throttle mapping at all in some way, or it falls back on some fixed values (I bet fixed, though), or what those fixed values might be.

It uses fixed values for sure. What we haven't determined yet apparently is what those values are.

So if I put the car to 'On' and sweep the accelerator through fully closed and fully opened slowly, while logging accelerator position and throttle position, I should be able to make a graph in excel showing them in relation to each other.

Yeah, if you go back and re-read the first post in this thread, you can see what I did to log the data. I basically swept through the pedal starting at low RPMs in something like 3rd gear while logging data in Cipher, and then graphed that. Because your foot's movement rate isn't consistent, you don't want to graph the values versus time, but instead versus each other (e.g. my graph of TPS mV vs Accel Pedal Pos). It still won't be perfect, but it'll give you an idea what's going on.

Yeah, it's necessary to do that with the normal map most likely, since it factors load (I think?) and RPM (so the engine needs to be running with the vehicle in motion).

Without the table being used, you don't need to have the engine running, I wouldn't think. I know with the ignition set to 'On' you can hear the throttles open and close just fine.

I don't think the physical throttles are the end of it, though. VVEL is part of the throttling on this engine, and probably isn't active unless it's running. Even with ETC off, this still has to be the case. ETC Off is only giving you a "virtual" direct throttle, not a real one :)

Wanted to share my experience so people are aware, I just had my car retuned on 1050cc ASNU injectors, when he was finished I asked him to load a map that Baer383 posted a few pages back to try it out.

Long story short for whatever reason the uprev black magic tables that the throttle maps alter must be affected by values in other maps because this had the effect of virtually no throttle under 4k rpm. The car barely moved and had 0.0 boost until 4k, then boost immediately jumped, so I'm assuming the intake valves were nearly closed with my foot the floor.

Seriously cant wait for ecutek...

That sucks,:shakes head:I've had some bs with Uprev but for one reason or another I got it fixed.
To bad you couldn't try it.

For those of you who are doing or trying a throttle map let it be known that after I updated my ROM editor Uprev added 1 more row meaning that my old throttle map only went to 6800 rpm after the update it now goes to 7200 rpm leaving a row on the map (7200)that is not adjusted right so at high RPM it kind of falls on it's face and on high RPM decel it is rough.

Just thought I'd tell you my findings.

Nice catch! I didn't even look at the throttle table when I updated+reflashed about a month ago, but didn't notice any issues, either.

A month ago you still would only have 15 rows ending in 6800 RPM so you won't have any problems but once you run the 'updater program' then you get 16 rows ending in 7200 RPM.

for anyone curious, heres some first gear throttle lag goodness, warm engine, stock throttle map

http://www.the370z.com/engine-drivet...ottle-lag.html