pmccut's FBM dyno results

[86_ZN6]

Originally Posted by clayrush

kinda like his prototype kit as well.

if all goes well, the final production kit will debut at 86fest

[clayrush]

Originally Posted by 86_ZN6

if all goes well, the final production kit will debut at 86fest

We gonna hold out for somthin bigger than the stage 0. and I need a full time job again.

[ft_sjo]

Why did you put it on a dyno if you didn't feel it was running right?

[King Tut]

Originally Posted by pmccut

Now the bad news...switched to map 2. I tried going into boost a couple times and noticed my AEM failsafe didn't show any AF/R readings, as if it was outside of the 10-18 range it can read. Ok..headed home to review logs. Driving on local road, 25ish mph..heard a loud POP sound. Sounded really bad. Car drove the remaining 1/4 mile home and parked the car. Waiting to hear back from John to see if there's anything horrific in the logs.

It was probably way rich would be my guess, but as I have mentioned before, the advantage of the AEM Failsafe gauge is that it stores your last 3 hours of driving, so you can pull the data and look at it if you weren't datalogging with EcuTek.

[mad_sb]

Originally Posted by King Tut

It was probably way rich would be my guess, but as I have mentioned before, the advantage of the AEM Failsafe gauge is that it stores your last 3 hours of driving, so you can pull the data and look at it if you weren't datalogging with EcuTek.

If you have it installed and configured correctly.. and i imagine a lot of people don't

[mad_sb]

Originally Posted by pmccut

J...
Here's the really worrying plot - boost/afr.
...

Right before the car goes into boost it goes really lean, then super rich.
I have yet to drive this car fast, or even on a fun road. Someone keep my hopes up please

I'd like to see the datalog of that pull if you have it.. I'll shoot you a pm.

[pmccut]

Originally Posted by ft_sjo

Why did you put it on a dyno if you didn't feel it was running right?

Honestly - I didn't realize they were putting it back on the dyno. When I brought it there for install over a month ago I asked them to do a before/after, but we ended up not doing one for that reason. This time I brought it back for clutch, engine mounts, fuel pump re-install w/ 4 o-rings. They wanted to see if it resolved the fuel starvation I thought I was seeing. I didn't realize they had until I got there.

Originally Posted by mad_sb

If you have it installed and configured correctly.. and i imagine a lot of people don't

I do believe the gauge is configured right as I've pulled logs off it before. I was logging through ecutek so I haven't had to look at the AEM logs lately. Was only using it before my cable was sent.

Originally Posted by mad_sb

I'd like to see the datalog of that pull if you have it.. I'll shoot you a pm.

I was logging through EcuTek the whole time, I'll shoot them over to you.

[FullBlown]

Originally Posted by pmccut

Honestly - I didn't realize they were putting it back on the dyno. When I brought it there for install over a month ago I asked them to do a before/after, but we ended up not doing one for that reason. This time I brought it back for clutch, engine mounts, fuel pump re-install w/ 4 o-rings. They wanted to see if it resolved the fuel starvation I thought I was seeing. I didn't realize they had until I got there.


I do believe the gauge is configured right as I've pulled logs off it before. I was logging through ecutek so I haven't had to look at the AEM logs lately. Was only using it before my cable was sent.



I was logging through EcuTek the whole time, I'll shoot them over to you.

map sent

[pmccut]

Originally Posted by FullBlown

map sent

Sent you a ~10 minute log with a single pull, plotting af/r vs boost with the aem gauge logs. Only saw -1 deg knock correction going into boost.



And here's the most recent map from Visconti.



Both of these are quick pulls stopping at 5k revs. Now that I know how to use aemdata I can probably scale these better for future logs.

[King Tut]

Neither of those AFR curves look all that great, but I like seeing other people using the useful data that the AEM Failsafe provides.

[pmccut]

Originally Posted by King Tut

Neither of those AFR curves look all that great, but I like seeing other people using the useful data that the AEM Failsafe provides.

Absolutely. I didn't know it had data logging before ordering. I do wish the aemdata app was more intuitive. It really doesn't seem to be geared for this data. Lap times, track data, blah.

[ModBargains.com]

Originally Posted by FullBlown

I will adjust it and send it over

FBM to the rescue! Hopefully you're up and running in no time.

[mad_sb]

Originally Posted by pmccut

Sent you a ~10 minute log with a single pull, plotting af/r vs boost with the aem gauge logs. Only saw -1 deg knock correction going into boost.

This one looks like it's holding closed loop way too long, your at peak boost and it's still 14:1... no good. Shoot me the ecutek log of this pull if you have it and I will let you know if they need to change the way they are handling the closed to open loop transition.

Originally Posted by pmccut

And here's the most recent map from Visconti.

Both of these are quick pulls stopping at 5k revs. Now that I know how to use aemdata I can probably scale these better for future logs.

This one has a nasty lean spike (16.5:1) during spool up. Was it still showing -3 / -4 knock correction like the last map?


I would not consider either one of those maps safe to keep doing pulls on.

[pmccut]

Originally Posted by mad_sb

This one looks like it's holding closed loop way too long, your at peak boost and it's still 14:1... no good. Shoot me the ecutek log of this pull if you have it and I will let you know if they need to change the way they are handling the closed to open loop transition.

Just sent it over.

Originally Posted by mad_sb

This one has a nasty lean spike (16.5:1) during spool up. Was it still showing -3 / -4 knock correction like the last map?

-5. Every log I've seen has had the same amount, no less, no more. I believe it's right as boost starts to spool, before it goes crazy rich.

Originally Posted by mad_sb

I would not consider either one of those maps safe to keep doing pulls on.

This. It's my biggest worry. I don't drive the car outside of giving John a log and taking it to the shop for supporting mods. I really really want to drive this car without worrying about it knocking. The original plan was to get the 91 map looking good then switch to E85 right away, it's just been weeks into the process for 91