[jpsimon]

Last time I was at the dyno I put down 398awhp/421awtq using the stock stage 3 settings. This was on 93 octane @ max of ~15.3psi
The default settings are a bit conservative for 93 octane, so I decided to fine tune my setup and get back on the dyno.

Here are some examples showing how timing can be bumped up and NOT "adapted out" as Terry/Mike claim it will.

First some 3rd gear pulls at the default settings (ut 85%, ign. cor: 100%). I was seeing 15.3psi max boost and average total timing advance of ~8.5:





I wanted to run more boost, and to see if the total timing advance would rise so I changed the setup to: ut89%, ign. cor: 50%. Low and behold, more boost and a higher overall timing advance (16.3psi, ~10.5):






As you can see, total ign. advance never decreased or was "learned out" (as terry/mike like to talk about) over the course of these runs. I guarantee if I was to go out and datalog right now it would show the same thing. (I can't go out right now because we're getting hammered with rain, but when it is nice I plan on doing a bunch more datalogging. I'll show some logs with just the ign. correction changed from default, etc... and get some logs at ut10%).

Now I just need to get some dyno time to compare my changes

[M3R1]

Graphs look real good...

[jpsimon]

and of course I mentioned new dyno runs... I'm hoping to get back to the dyno sometime next week. so stay tuned

[Mike@N54Tuning.com]

Originally Posted by jpsimon

As you can see, total ign. advance never decreased or was "learned out" (as terry/mike like to talk about) over the course of these runs. I guarantee if I was to go out and datalog right now it would show the same thing. (I can't go out right now because we're getting hammered with rain, but when it is nice I plan on doing a bunch more datalogging. I'll show some logs with just the ign. correction changed from default, etc... and get some logs at ut10%).

Hi JP,

Thanks for the 93 octane logs. By changing boost and CPS offset values between the runs it is hard to analyze what did what. In the runs you cite as having more timing, they actually have less timing throughout the run except at the end. Neither example shows anything indicative of knock. Looks like the car is running well and good luck on your quest for 400+ at the dyno.

Mike

[jpsimon]

yeah I mentioned somewhere in my jibber-jabber that I'll be doing more logs with only adjusting the ign. correction. Can't right now due to weather

[Mike@N54Tuning.com]

Originally Posted by jpsimon

yeah I mentioned somewhere in my jibber-jabber that I'll be doing more logs with only adjusting the ign. correction. Can't right now due to weather

No worries. I want to see some logs and dynos with that GIAC flash tune on your car when you get a chance!

The weather here sux as well so I can relate... LOL We're still waiting for summer to hit.

Mike

[OpenFlash]

Nice! Keep them coming guys...

Cheers,
shiv

[jpsimon]

na, go for it!

[OpenFlash]

Originally Posted by got psi

I can do some logs on stage 2 maps.

DCI
Catback ASR exhaust (no secondary cats)
Stett FMIC
PROcede CANbus (obviously)
Chargepipe with BOV
Stock DPs
93 oct.

What UT%, Ign. Cor %, and gear would you guys want to see?

JP, hope you dont mind if i post them here. If you do, let me know and ill start another thread.

Just run the defaults. And log some 3rd gear 4000-7000rpm runs. Datalog all the same stuff as jp. And post them up. We'll go from there You may notice that you're results wont be as consistent as his since you are running with the stock FMIC. But there should still be room to improve over the conservative baseline tune!

Shiv

[Sniz]

excellent stuff, this is why I stayed with the Procede throughout my 335 ownership, I always liked to have contol over my car and the ability to datalog, tweak, rerun and redatalog to me was invaluable.

still my choice if I was to buy another 335, keep it up shiv.

[Sniz]

Originally Posted by shiv@vishnu

Just run the defaults. And log some 3rd gear 4000-7000rpm runs. Datalog all the same stuff as jp. And post them up. We'll go from there You may notice that you're results wont be as consistent as his since you are running with the stock FMIC. But there should still be room to improve over the conservative baseline tune!

Shiv

yup, he needs a new FMIC though, would be one of my 1st mods after a tune on any 335.

I bought the very 1st Helix unit produced. As soon as I saw how small and wimpy the stock n54 fmic was...i knew I needed one. Its pretty pathetic what BMW stuck in there....

[Sniz]

Originally Posted by got psi

No prob. Ill give it a shot.

Im not running stock FMIC, im running a STETT FMIC .

The only thing between me and stage 3 are my stock DPs. I have a set of DPs on order.

oh good, STETT looks like a nice piece. good choice.

[OpenFlash]

Originally Posted by got psi

No prob. Ill give it a shot.

Im not running stock FMIC, im running a STETT FMIC .

The only thing between me and stage 3 are my stock DPs. I have a set of DPs on order.

Oh cool. We can definitely make your tune more aggressive. Post up some logs and we'll dial that sucker in.

Shiv

[OpenFlash]

Originally Posted by got psi

btw... i just switched to stage 2 maps today at around 4:00PM EST then drove 32 miles home from work. Does it need to adapt before i log so we can get accurate figures?

Nope. No significant adaption necessary. Just a few WOT runs and that's it.

Shiv

[scalbert]

I'll try and get some logs as well soon but too busy as of right now. Looks good though and what I always like to see, more data for the masses.

[jpsimon]

you'll want to re-do those runs and try to be WOT all the way through.. both times you aren't full throttle so boost etc changes in the middle

[jpsimon]

you can add up to 6

[gqmd]

Originally Posted by Mike@N54Tuning.com

No worries. I want to see some logs and dynos with that GIAC flash tune on your car when you get a chance!

The weather here sux as well so I can relate... LOL We're still waiting for summer to hit.

Mike

WOW! Even big Mike is patiently awaiting the GIAC tune

[jpsimon]

they look the same to me

[OpenFlash]

Originally Posted by got psi

I was able to get some datalogs today after work. I was able to get a passenger with me (thanks jaza) to take care of the logging so i can concentrate on ummmm... driving.

Temp was 85 deg. Humidity 87%.

Stage 2 map. 80% UT and 100% Ign. Cor.

Mods for those who missed it:

PROcede CANbus
DCI
ASR Catback exhaust (no secondary cats)
STETT FMIC
Hardpipe
Greddy Type-S BOV
STOCK DPs
93 oct.

Some runs were done a very bumpy road. I really made sure I stayed 100% throttle the whole time. I dont understand why one of the logs shows my throttle all over the place ??!!??

It looks like traction control was intervening (or you were getting wheelspin) in that one run that had the throttle moving around. All the other runs look fine with the throttle starting to close above 6500rpm.

Just a suggestion: When you conduct your next logs, try to capture some data from before and after the pull so that the Y-axis scales better. It will be much easier to read (see JP's and my datalogs).

Shiv

[jaza45]

Originally Posted by got psi

Shiv.

Thanks for the info. Based on what you see, can you make any recommendations for UT% and ign. Cor to squeeze some more power out of the tune? Thanks.

I'll tell you how...just get a Juicebox.....haha...just joking...but seriously Shiv give us some feedback on those datalogs...

[brianhn1]

Originally Posted by shiv@vishnu

It looks like traction control was intervening (or you were getting wheelspin) in that one run that had the throttle moving around. All the other runs look fine with the throttle starting to close above 6500rpm.

Just a suggestion: When you conduct your next logs, try to capture some data from before and after the pull so that the Y-axis scales better. It will be much easier to read (see JP's and my datalogs).

Shiv

+1 Traction control intervenes both the throttle and ignition timing.