My 3.9 V8 Mk3 Capri

[Tony C]

had chance to give her a proper run today,
there are two logs in this file, a driving one and a standing start accel one,
http://www.v-8.org.uk/zipfiles/march_02_03_08.zip
she is defo bogging out at full throttle it dies then picks up and goes like fook,
think you mayneed to do a bit of tweeking David,
Also i noticed no spikes in the log, only thing different was a fully charged laptop battery and not running of the car battery.

[Tony C]

Rob, have you had time to pass this on to the guys on the wiki?
if so any news or ideas?
sorry to ask, just so i know what im at this weekend regarding the first race meeting of the year

[rob@vems.co.uk]

Rob, have you had time to pass this on to the guys on the wiki?
if so any news or ideas?
sorry to ask, just so i know what im at this weekend regarding the first race meeting of the year

Sorry mate, I've been up to my neck in work these past couple of weeks.
You'd not be using EGO at WOT so theres no reason not to go racing...

[Tony C]

i  agree,
but its the worrying thought of the drive up there from here to the Pod,

[rob@vems.co.uk]

I thought if anything you were a little on the richer AFR side.

[Tony C]

Davids done a ve table refig mate,
once i have loaded the new .msq i need to do him another datalog,
he is a good man,

[Tony C]

here you go David,

http://www.v-8.org.uk/zipfiles/latestlog08.zip

[dnb]

OK.  I'll run that one through the analyser and see where we get.

How was the car tonight?

[Tony C]

ran a 1000 times better mate, compared to the other .msq we tried,
pulls good, maybe you will look at the log and say, we can get her better,
i have noticed though this time round theres more spikes on this log, and it was running on the laptop battery again not car power,

once this is sorted just this fuel correction to get working and i will be a happy person again....
cheers for all your help so far David,
racing is looking even more certain now every time we do a new upload and road test for you.

we had a a problem when we first installed the vems where the pump channel (pin 15) shut down and we lost output from that pin,
after a call to rob he advised us to move it to pin 34 or something like that which worked and has been since,
where the pump is now could this be causing the spikes we are getting?
and the pin 15 not working could that be affecting the fuel correction or also causing the spikes?

[rob@vems.co.uk]

Pin 34 is a high power transistor thats very well insulated (they handle driving coils directly) so a spike from that is unlikely to say the least.

Where are you getting the spikes? (Which reading?)

[Tony C]

i will let David answer this one as he is familiar with my settings and datalogs now better than me

but the latest log is here:
http://www.v-8.org.uk/zipfiles/latestlog08.zip

[dnb]

I've had an idea about the EGO correction.

In Megatune, in settings->VE learning (auto tune) there may be an error.

VE learning is currently disabled, so enable it.
This will allow you to edit Simulation.  This is currently enabled and should be disabled.

Now disable VE learning again, and burn these settings to the ECU.

This *should* make EGO correction work.  I've not been able to test this, so it could of course be another red herring...

[Tony C]

i'll have a look after i grab the kids from school mate,
ta very much,

[Tony C]

nope still didnt work,
but while i was out i have done another datalog mate, along with one on nitrous,
she looks mighty rich on gas, so i may be able to run a slightly smaller fuel jet to lean her up a bit,
see what you think the datalog as normal first, then see what you recon to the nitrous one,

http://www.v-8.org.uk/zipfiles/log07_03_08.zip

[rob@vems.co.uk]

You want about 0.7 to 0.71 on gas, more power is possible at 0.75 but you'd really want to watch the EGTs and accept that you could grenade the engine if you run that lean.