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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > How do my datalogs look?



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      03-20-2015, 06:10 PM   #1
924er
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How do my datalogs look?

hello yal!

I'm running FBO and wanted to run a mix of e85 so i can use stage 2 aggressive via COBB.

I did some runs, and it was a pretty hot day. i had just loaded the map prior before driving and filling up 2.2 gallons of e85 which is around 20% and the rest 91 octane correct me if I'm wrong. idk if i should have let the car get used to the map before doing some pulls.

would like to know if it safe to drive

thanks!!!!



http://datazap.me/u/moswissa/stage-2...=0&data=1-7-22

http://datazap.me/u/moswissa/stage-2...10-11-12-13-22
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      03-20-2015, 08:20 PM   #2
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1st log had a few corrections and 2nd has less.

Both fuel pumps looked ok.

Your IATs were getting up there temperature wise, it might have something to do with having the timing corrections.


I'm not sure if using e85 for octane only will allow stage 2 aggressive to work well. Especially with 120+ IATs

Personally I would go down a map until I could get a pro tune.
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      03-20-2015, 09:13 PM   #3
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Quote:
Originally Posted by Brule
1st log had a few corrections and 2nd has less.

Both fuel pumps looked ok.

Your IATs were getting up there temperature wise, it might have something to do with having the timing corrections.


I'm not sure if using e85 for octane only will allow stage 2 aggressive to work well. Especially with 120+ IATs

Personally I would go down a map until I could get a pro tune.
Yeah I noticed that too.

I have the 5in VRSF it works okay but not the best

I was worried about the fueling since I'm running that e85.

I'll so some more pulls tonight when the weather cools down
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      03-21-2015, 02:23 AM   #4
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Any other suggestions before this hits the bottom of all threads.
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      03-21-2015, 03:27 PM   #5
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      03-22-2015, 09:59 PM   #6
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ok i did another log today. its been 4 days since i been running stage 2 aggressive with 20%e85 and 91 octane.

are my AFRs too high?


http://www.datazap.me/u/moswissa/kkj...14-15-20-21-22
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      03-23-2015, 03:03 PM   #7
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Really no feedback at all from anyone? Lol
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      03-23-2015, 03:19 PM   #8
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You're getting pretty lean in the upper RPMs, that would be my main concern. LPFP doesn't seem to be dying off so that is good. Its also been awhile since I've looked at 91+e85 pulls, I would post in the PTF discussion thread or Cobb AP discussion thread to get more visibility.
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      03-23-2015, 06:09 PM   #9
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Quote:
Originally Posted by UMich_335i
You're getting pretty lean in the upper RPMs, that would be my main concern. LPFP doesn't seem to be dying off so that is good. Its also been awhile since I've looked at 91+e85 pulls, I would post in the PTF discussion thread or Cobb AP discussion thread to get more visibility.
Aren't AFRs supposed to be between 11.8 and 12.3? Teach me please

Thanks
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      03-23-2015, 06:40 PM   #10
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Quote:
Originally Posted by 924er View Post
ok i did another log today. its been 4 days since i been running stage 2 aggressive with 20%e85 and 91 octane.

are my AFRs too high?


http://www.datazap.me/u/moswissa/kkj...14-15-20-21-22
Which version of the 5" do you have, the first version or the stepped? Judging by the 10 degree rise on the 3rd gear pull I'm guessing it's the non-stepped version. That's a definite improvement over stock and is going to be equal if not better than any other non-stepped 5" intercooler but it's never going to perform as well as the a 5" stepped or 7" intercooler will, especially if you're in the warmer climates.
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      03-23-2015, 07:03 PM   #11
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Quote:
Originally Posted by Tiago@VRSF
Quote:
Originally Posted by 924er View Post
ok i did another log today. its been 4 days since i been running stage 2 aggressive with 20%e85 and 91 octane.

are my AFRs too high?


http://www.datazap.me/u/moswissa/kkj...14-15-20-21-22
Which version of the 5" do you have, the first version or the stepped? Judging by the 10 degree rise on the 3rd gear pull I'm guessing it's the non-stepped version. That's a definite improvement over stock and is going to be equal if not better than any other non-stepped 5" intercooler but it's never going to perform as well as the a 5" stepped or 7" intercooler will, especially if you're in the warmer climates.
Yeah I have the 5in regular. It normally goes anywhere between 5-12degrees higher which in happy with. My stock IC goes up 60+ degrees.

The stepped IC came out after I bought this so I'm upset about that but I'll keep these one

Does my log look safe to run?
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      03-23-2015, 08:35 PM   #12
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Quote:
Originally Posted by 924er View Post
Aren't AFRs supposed to be between 11.8 and 12.3? Teach me please

Thanks
He may be looking at the AFR after you shift gears (easy to do at first glance if you just follow the AFR line). Those AFRs are good for a low ethanol tune although I would run at least e30 for 12.0 up. I run the exact same AFR (12.05) but I run e40. Also you are logging timing correction but we need to see timing angle. We can't tell a thing about how aggressive your tuned with timing correction. All it tells is your not getting corrections. with timing angle we can see both how aggressive timing is and if there are corrections (timing drops).
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      03-23-2015, 09:10 PM   #13
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Quote:
Originally Posted by Tiago@VRSF View Post
That's a definite improvement over stock and is going to be equal if not better than any other non-stepped 5" intercooler .
I took his three logs from 3500rpm to his redlines (5900rpm on two runs and 5000rpm on the other) compared to my Mishimoto 5" logs and his rose at least 3 deg hotter even on the 3500-5000rpm run (4 deg vs 1.1 deg rise). Now that sounds insignificant except that I'm running 2psi more boost at 4k rpm, 1psi more at 5000rpm and 0.6psi at redline PLUS I'll bet my life I'm running WAY more timing (10.88-11.25 at 3500rpm and over 12 deg at 6000rpm). Mute point since you don't sell these and I'm pretty sure the stepped offering will outperform mine but since you made the claim and I had data to compare...
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      03-23-2015, 09:29 PM   #14
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I'd hate to derail this thread but unless you're swapping the VRSF intercooler off his car and throwing on the Mishimoto on his car, there's no valid comparison here. Comparing intake temps with completely different conditions, different cars, different tunes, different boost levels, etc isn't exactly a comparison worth noting IMO. In order to properly test you'd have to get the intercooler as close to ambient as possible and then

For example, here's Hokie's logs with his Mishimoto which under performs in comparison to ours. We had a 10 degree temperature rise in 3rd, he had 23 degrees. This is on a discontinued intercooler we no longer sell. The current version vastly outperforms the older version due to the higher density fin pack and overall increase in volume. Either way, it's an apples to oranges comparison and we can't really determine which is superior without back to back testing under the same conditions.

Here's the log I'm talking about: http://www.datazap.me/u/hokiebmw/1st...zoom=1654-1768

Last edited by Tiago@VRSF; 03-23-2015 at 09:41 PM.
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      03-23-2015, 09:42 PM   #15
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Quote:
Originally Posted by 924er View Post
Aren't AFRs supposed to be between 11.8 and 12.3? Teach me please

Thanks
The only AFR's that you should concern yourself with are the ones during WOT
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      03-23-2015, 10:15 PM   #16
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Quote:
Originally Posted by Tiago@VRSF View Post
I'd hate to derail this thread but unless you're swapping the VRSF intercooler off his car and throwing on the Mishimoto on his car, there's no valid comparison here. Comparing intake temps with completely different conditions, different cars, different tunes, different boost levels, etc isn't exactly a comparison worth noting IMO. In order to properly test you'd have to get the intercooler as close to ambient as possible and then

For example, here's Hokie's logs with his Mishimoto which under performs in comparison to ours. We had a 10 degree temperature rise in 3rd, he had 23 degrees. This is on a discontinued intercooler we no longer sell. The current version vastly outperforms the older version due to the higher density fin pack and overall increase in volume. Either way, it's an apples to oranges comparison and we can't really determine which is superior without back to back testing under the same conditions.

Here's the log I'm talking about: http://www.datazap.me/u/hokiebmw/1st...zoom=1654-1768
I don't disagree with anything you said here. I disagreed with you randomly making your original claim of: as good as or better than every other 5" out there since you have no way of knowing this (I'd be surprised if you can find ONE person that swapped a 5" for another brand 5"). Or maybe you do but then you had way too much time and money on your hands at some point lol.

Also OP it would be nice to log ambient temps as well.
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      03-23-2015, 11:55 PM   #17
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Quote:
Originally Posted by stanlalee
Quote:
Originally Posted by Tiago@VRSF View Post
I'd hate to derail this thread but unless you're swapping the VRSF intercooler off his car and throwing on the Mishimoto on his car, there's no valid comparison here. Comparing intake temps with completely different conditions, different cars, different tunes, different boost levels, etc isn't exactly a comparison worth noting IMO. In order to properly test you'd have to get the intercooler as close to ambient as possible and then

For example, here's Hokie's logs with his Mishimoto which under performs in comparison to ours. We had a 10 degree temperature rise in 3rd, he had 23 degrees. This is on a discontinued intercooler we no longer sell. The current version vastly outperforms the older version due to the higher density fin pack and overall increase in volume. Either way, it's an apples to oranges comparison and we can't really determine which is superior without back to back testing under the same conditions.

Here's the log I'm talking about: http://www.datazap.me/u/hokiebmw/1st...zoom=1654-1768
I don't disagree with anything you said here. I disagreed with you randomly making your original claim of: as good as or better than every other 5" out there since you have no way of knowing this (I'd be surprised if you can find ONE person that swapped a 5" for another brand 5"). Or maybe you do but then you had way too much time and money on your hands at some point lol.

Also OP it would be nice to log ambient temps as well.
Ambient temps were about 70 degrees F.

I'm going to do another datalog this time I'm going to log timing and not just the corrections like you said.

I'll report back here tomorrow night thanks man
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      03-23-2015, 11:57 PM   #18
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I would hate to spend another 4-500 bucks on another IC. I'll just live with this one I guess
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      03-24-2015, 12:09 AM   #19
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The intercooler or intake temps isn't really hindering you on the third log. The first few logs looked like you were logging with a heat soaked intercooler whereas the last one does not. An intercooler requires a cool down period after a multiple gear pull in order to get closer to ambient temp. If you do multiple back to back pulls without letting the intercooler wind down you're going to have inconsistent results.
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      03-24-2015, 02:18 AM   #20
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Quote:
Originally Posted by 924er View Post
I would hate to spend another 4-500 bucks on another IC. I'll just live with this one I guess
Tiago will send you a new stepped 5 inch for free.

He's got plenty of them.
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      03-24-2015, 11:17 AM   #21
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Quote:
Originally Posted by Brule
Quote:
Originally Posted by 924er View Post
I would hate to spend another 4-500 bucks on another IC. I'll just live with this one I guess
Tiago will send you a new stepped 5 inch for free.

He's got plenty of them.
For sure!! I'll be courteous and pay for shipping if that's the case
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      03-24-2015, 11:19 AM   #22
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Quote:
Originally Posted by Tiago@VRSF
The intercooler or intake temps isn't really hindering you on the third log. The first few logs looked like you were logging with a heat soaked intercooler whereas the last one does not. An intercooler requires a cool down period after a multiple gear pull in order to get closer to ambient temp. If you do multiple back to back pulls without letting the intercooler wind down you're going to have inconsistent results.
Yeah I wasn't letting the car cool down. The first run I did the car was warmed up but I haven't done any runs. I didn't let the car warm up I pretty much busted a U turn and floored it again.

Should I let the car coast for a few minutes after a run?
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