who maps there own VR4s

[evonut270]

you already know where they are you live on the same site

geekmapped has a copy

I have those I wasn't sure if there were
more available in that case if they work then mapping them won't be an issue

[Nutter_John]

Those maps will flash all the 2's and the 3's although some tables are still missing in some of them

[evonut270]

Nut_Jo, Nick states that he wants to raise the limit and not eliminate it. Unless he is at the point where it cannot be moved further then there may be hope: that's all I'm saying. If he's reached the point where the next option is injector upgrades then fair enough.
BTW are you in danger of cutting your own throat here in terms of 'KinkyJohn the AfroNutter enterprises'? The Microsoft/Apple scenario comes to mind (you wish!). After all, who is this registered user evonut?

Im just a grease monkey who plays with stuff I know nothing about

[phosty]

Evonut, I'm pretending to map my own (Aberdeen based too) but not being very successful at the moment.

Boost cut happens between 3500 - 4500 when the load table is around 0.48 bar for greater than 2 seconds , I have moved this to a higher region and it works fine

John, I have struggled to raise my boost cut and as a result can't hold boosts above 9-10 psi before it cuts at 3-4000ish rpm.

In my Ecuflash XML files the boost cut table address is 11d1b (with the rpm axis at 2cfaa, 9 elements). Originally the rom had:

rpm load
3500 - 160
4000 - 160
4500 - 160
5000 - 160
5500 - 160
6000 - 154
6500 - 148
7000 - 148
7500 - 148

I have subsequently changed all values to 250 (not in one go but I got no effect so I slowly raised it) and still get boost (Load?) cut with boost above 10psi.

So have I got the right rom address?

btw 0.48 bar would be ~7 psi so are you sure about that boost cut limit? My stock legnum runs with 8 psi with no issues.

[Nutter_John]

a load value of 160 is roughly 0.6 bar , this is due to use living at 1 bar

Yeah the load limit is a value you must not exceed for more than a period of time , so you can not stay in that zone for long

[Wodjno]

John..

Not looked at any of these files yet.
Without knowing anything so don't slate me for saying something totally rediculous

Can the time period be altered that the load limit for that cell shouldn't exceed? Thus allowing this cell to be passed etc ?
Or is this to dangerous

Cheers

Wodj

[evonut270]

John..

Not looked at any of these files yet.
Without knowing anything so don't slate me for saying something totally rediculous

Can the time period be altered that the load limit for that cell shouldn't exceed? Thus allowing this cell to be passed etc ?
Or is this to dangerous

Cheers

Wodj

The boost cut delay timer can be set at a threshold of which it will never reach. So in effect boost cut will never happen. Iv been going through some addresses today for the delay timer so I anyone wants to try it I can post up the address. Also I'll look into the boost limit addresses

[Nutter_John]

Yes and yes Glenn

3rd gear may go through it in 2.1 seconds
4th gear may go through it in 2.4 seconds
5th gear may go through it in 3.2 seconds

which value do you set it too , would 3.2 be too high a load for instance you lose you wastegate feed and are free boosting it would not cut untill too late

[Wodjno]

OK..
Speaking from my personal driving characteristics here only....

I don't dump the loud pedal in 5th or 4th at 3000rpm. 1st and 2nd yes. 3rd would be nice
I have learn't over many years how to work around fuel cut without reducing boost.
So only alter the time value to allow 3rd gear pulls to stay in that Zone a tad longer.

Cheers

Wodj

[evonut270]

Evonut, I'm pretending to map my own (Aberdeen based too) but not being very successful at the moment.



John, I have struggled to raise my boost cut and as a result can't hold boosts above 9-10 psi before it cuts at 3-4000ish rpm.

In my Ecuflash XML files the boost cut table address is 11d1b (with the rpm axis at 2cfaa, 9 elements). Originally the rom had:

rpm load
3500 - 160
4000 - 160
4500 - 160
5000 - 160
5500 - 160
6000 - 154
6500 - 148
7000 - 148
7500 - 148

I have subsequently changed all values to 250 (not in one go but I got no effect so I slowly raised it) and still get boost (Load?) cut with boost above 10psi.

So have I got the right rom address?

btw 0.48 bar would be ~7 psi so are you sure about that boost cut limit? My stock legnum runs with 8 psi with no issues.

change the boost limit address to 11c98 and try that.also try 11080

[phosty]

change the boost limit address to 11c98 and try that.also try 11080

At that 11c98 address all the table cells are 160. I changed them to 230 but still get boost cut at the same boost/rpm so I don't think it's right yet.

At 11080 the numbers don't look right to start with:

rpm load
3500 - 184
4000 - 179
4500 - 174
5000 - 170
5500 - 165
6000 - 160
6500 - 160
7000 - 160
7500 - 2

So I haven't tried changing those.

I've attached my stock rom but I assume it's the same as the ones you already have.

[evonut270]

At that 11c98 address all the table cells are 160. I changed them to 230 but still get boost cut at the same boost/rpm so I don't think it's right yet.

At 11080 the numbers don't look right to start with:

rpm load
3500 - 184
4000 - 179
4500 - 174
5000 - 170
5500 - 165
6000 - 160
6500 - 160
7000 - 160
7500 - 2

So I haven't tried changing those.

I've attached my stock rom but I assume it's the same as the ones you already have.

11080 is the only table I can find remotely close if needed the rpm elements can be dropped so they fall in line if that address does not work I'll get back onto it later

[Turbo_Steve]

To be honest, I wouldn't want to defeat the ECUs boost limit without being absoloutely positively definitely sure that it's setup to overfuel like made at that load.

[evonut270]

To be honest, I wouldn't want to defeat the ECUs boost limit without being absoloutely positively definitely sure that it's setup to overfuel like made at that load.

Looking at the fuel maps They will no doubt be very rich Once he load starts to rise and it's not defeating the limit merely raising it.I'm only ask it be tested to confirm the addresses.I wouldn't dream say to anyone to whack the boost up now the limit can be raised without mapping it first

[Turbo_Steve]

Just a-chicken

And you might be surprised how rich it isn't in the higher load scales. I've seen all sorts of nasty's in factory ECUs, especially at high load / RPMs.

[evonut270]

Just a-chicken

And you might be surprised how rich it isn't in the higher load scales. I've seen all sorts of nasty's in factory ECUs, especially at high load / RPMs.

dependant on supporting mods yeah i agree.

[phosty]

Evonut, how did you arrive at those suggestions for the boost cut table address? I've been looking through the roms a bit myself.

The original 11d1b was obviously wrong as it clashes with the range of the 'Cat-Warmup Ignition Retard Map #1'
The 11c98 address is slap bang in the middle of a load of hex 80 values so I'm not sure why you suggested that one.
I'll try 11080 tomorrow, fingers crossed!

Any general tips for spotting tables?

[evonut270]

Evonut, how did you arrive at those suggestions for the boost cut table address? I've been looking through the roms a bit myself.

The original 11d1b was obviously wrong as it clashes with the range of the 'Cat-Warmup Ignition Retard Map #1'
The 11c98 address is slap bang in the middle of a load of hex 80 values so I'm not sure why you suggested that one.
I'll try 11080 tomorrow, fingers crossed!

Any general tips for spotting tables?

I don't think the last address I gave you will work. Iv been comparing galant/legnum roms and they are quite different so finding more tables is going to be a bit of work

[phosty]

You're right - 11080 didn't work either.

Does anybody know if it is safe to flash a EM2004 ecu like mine with an EM2005 and vice versa?

[Eurospec]

Somewhere on here i put the correct boost cut address that i found. Did you try that one?

I also sent nutter an updated xml with it in cause i couldnt figure out how to post it on here!

Cheers,

Ben.