[Silent9n54]

Originally Posted by Godzilx

Decided to try out E85 today. Did a E30 mix on MHD Stage 1+

Was wondering if someone could view my log and tell me how the cars taking to e85.

https://datazap.me/u/godzilx/1-e30-w...olo=15&mark=19

Any thoughts greatly appreciated

you have major timing pulls in all cylinders which usually points out to the E85 mixture not being good ( not enough E85 in the tank ). How much E85 did you add ?

[Silent9n54]

Originally Posted by ScottUK

Easy guys, can somebody have a quick look over this log & point out any nasty...
135i n54 manual 76k , Cobb ap2 stg1 driveST , K&N panel filter .
Cheers guys
https://datazap.me/u/billyblanko/log...og=0&data=1-20

you are missing a whole lot of parameters to be able to give you a proper reading.

check what other people have in their logs. You are missing wgdc, rail pressure, lpfp, among other things. my advice would be to get rid of cobb for mhd. Those maps are nasty

[Godzilx]

Originally Posted by Silent11N54

you have major timing pulls in all cylinders which usually points out to the E85 mixture not being good ( not enough E85 in the tank ). How much E85 did you add ?

I added 4 gallons of e85 and 12 of 93 octane

[Silent9n54]

Originally Posted by Godzilx

I added 4 gallons of e85 and 12 of 93 octane

your lpfp is holding pressure fine so i would add another gallon of e85 for sure and see if it improves.

[Godzilx]

Originally Posted by Silent11N54

your lpfp is holding pressure fine so i would add another gallon of e85 for sure and see if it improves.

Thank you for the help! Another thing I noticed was my boost not hitting target. Am I misinterpreting the graph or do I have a leak in you opinion?

[Silent9n54]

Originally Posted by Godzilx

Thank you for the help! Another thing I noticed was my boost not hitting target. Am I misinterpreting the graph or do I have a leak in you opinion?

start with more E85 then we can see if there are any improvements

[HB E90]

Originally Posted by Godzilx

I added 4 gallons of e85 and 12 of 93 octane

Id say not quite enough E. I go 4/10 or 5/10 lately (this maxes my stock LPFP on 2+ though)! But my base fuel is crap ACN 91. So try 4 gal E85 / 10 gal 93. Also yea your below boost target all the way so maybe a leak but its not terrible.

[Godzilx]

Originally Posted by Silent11N54

start with more E85 then we can see if there are any improvements

Added .75 gal of E85 at 3/4 tank of gas left. Car pulls a lot harder but boost isn't hitting target still


https://datazap.me/u/godzilx/1-e30-m...&data=3-25

[Jerain]

Originally Posted by Godzilx

Added .75 gal of E85 at 3/4 tank of gas left. Car pulls a lot harder but boost isn't hitting target still


https://datazap.me/u/godzilx/1-e30-m...og=1&data=3-25

Replace boost solenoids, check for brittle vaccuum hoses esp under engine cover, replace chargepipe O-rings from diverter valves, check all intercooler connections etc...

[Jerain]

Originally Posted by ScottUK

Easy guys, can somebody have a quick look over this log & point out any nasty...
135i n54 manual 76k , Cobb ap2 stg1 driveST , K&N panel filter .
Cheers guys
https://datazap.me/u/billyblanko/log...og=0&data=1-20

Get MHD, it will be nicer to drive and faster and you have better logging...

[Jerain]

Originally Posted by Pete’s335is

Hey guys,

I got back into my car after not driving for a while and noticed some weird noises. I wanted to log to make sure everything was alright, and would really appreciate a more knowledgeable opinion.

The cars a 335is FBO with new PR coils, new plugs, new index 12 injectors.

I've been having a random misfire in cyl 3 but it never throws a code while driving, only shows up when I read codes with MHD. A few pulls were done beforehand and this was the cleanest log.

https://datazap.me/u/petes335is/log-...og=0&data=3-20

Boost/vaccuum problem, also some timing pulls, get better fuel.

Replace boost solenoids, check for brittle vaccuum hoses esp under engine cover, replace chargepipe O-rings from diverter valves, check all intercooler connections etc...

[mkolankowski]

Can someone tell me what they think?

https://datazap.me/u/mkolankowski/1-...og=0&data=3-22

Car has vrsf charge pipe, tial bov, vrsf downpipes, VRSF catback, mishimoto intercooler, 1 step colder plugs, new delphi coils, bms dci, bms occ, spool stage 2 bucketless lpfp, 3.5 bar map, motiv flex fuel kit running the mhd v8 stage 2 93 ots map

[BM3Rrrr]

Originally Posted by mkolankowski

Can someone tell me what they think?

https://datazap.me/u/mkolankowski/1-...og=0&data=3-22

Car has vrsf charge pipe, tial bov, vrsf downpipes, VRSF catback, mishimoto intercooler, 1 step colder plugs, new delphi coils, bms dci, bms occ, spool stage 2 bucketless lpfp, 3.5 bar map, motiv flex fuel kit running the mhd v8 stage 2 93 ots map

You'll need to post a proper log at WOT before we can tell you anything

[335e92tx]

Originally Posted by thormessiah

Here's another pull but on Shell 93 with 2 gallons of e85! Is timing better or worse? If I plan to be on e30 later will I still need the additional 2 gallons of ethanol?

Change the opton for boost to boost mean


Yes, there are no timing pulls but you are in third all the way. Shift into 4th for a bit and let it get a few secs in that gear. You arn't getting retards but the Ethanol isnt really helpig much since you are still on a 93 map. Its only got like 6 degrees of timing. A e30 map would kick that to 8 or 10 at least.

Barometric pressure is 14.2 psi. Thats about 1000 feet elevation - as you move up in RPM the fuel trims wont be as close as it would be for an OTS map on a car thats at 14.7 psi (sea level).

Custom tune is the fix for that. That in an of itself isnt a reason to go custom tune, its just one.. of some ..

Your IATS go from from 72-73 degrees to 92 in about 6 secs. https://datazap.me/u/volfwaley/stage...-29&zoom=22-84

So what Intercooler is this?


The wastegate DCs are up in the 70 percent range at the top of third.. You wont get much more out of it than that. the snails are moving as fast as they can.

[335e92tx]

Originally Posted by mkolankowski

Can someone tell me what they think?

https://datazap.me/u/mkolankowski/1-...og=0&data=3-22

Car has vrsf charge pipe, tial bov, vrsf downpipes, VRSF catback, mishimoto intercooler, 1 step colder plugs, new delphi coils, bms dci, bms occ, spool stage 2 bucketless lpfp, 3.5 bar map, motiv flex fuel kit running the mhd v8 stage 2 93 ots map

yeah, you really didnt go WFO until 3800.. You really want to have it floored in 3rd at about 2800/3000 max.. run it all the way thru third and shift into 4th and leave it that way for 3 or 4 secs.. then you got some data.

[335e92tx]

Originally Posted by Godzilx

Added .75 gal of E85 at 3/4 tank of gas left. Car pulls a lot harder but boost isn't hitting target still


https://datazap.me/u/godzilx/1-e30-m...og=1&data=3-25

You're still on a S1 map. Even with ethanol its really not pushing boost much .. you are about 15.6 psi. Go to an S2 and then you are starting to push the limits of a OTS map.. and most n54s that have 80 to 100K miles (which causes oil in cyls and makes them more likely to get into retards...)

Turn off boost P and D fact and turn on Short term fuel trims.

[mkolankowski]

Originally Posted by 335e92tx

yeah, you really didnt go WFO until 3800.. You really want to have it floored in 3rd at about 2800/3000 max.. run it all the way thru third and shift into 4th and leave it that way for 3 or 4 secs.. then you got some data.

Ok thats strange cause I thought my foot was to the floor but now I see the log says 90. Not a problem I will get more logs later this week and post them up thanks for the for the help and info.

[335e92tx]

Originally Posted by mkolankowski

Ok thats strange cause I thought my foot was to the floor but now I see the log says 90. Not a problem I will get more logs later this week and post them up thanks for the for the help and info.

Well, throttle angle and accelerator position arent the same in the DME. Look here. See how the throttle angle isnt at max 89/90 until like 4500.. after you have had it floored for a bit.. its bc the load Req isnt that high relative to load actual so the DME isnt gonna give you 90 percent (which is max for the throttle angle) .. https://datazap.me/u/mkolankowski/1-...-25&zoom=16-73

[thormessiah]

Originally Posted by 335e92tx

Change the opton for boost to boost mean


Yes, there are no timing pulls but you are in third all the way. Shift into 4th for a bit and let it get a few secs in that gear. You arn't getting retards but the Ethanol isnt really helpig much since you are still on a 93 map. Its only got like 6 degrees of timing. A e30 map would kick that to 8 or 10 at least.

Barometric pressure is 14.2 psi. Thats about 1000 feet elevation - as you move up in RPM the fuel trims wont be as close as it would be for an OTS map on a car thats at 14.7 psi (sea level).

Custom tune is the fix for that. That in an of itself isnt a reason to go custom tune, its just one.. of some ..

Your IATS go from from 72-73 degrees to 92 in about 6 secs. https://datazap.me/u/volfwaley/stage...-29&zoom=22-84

So what Intercooler is this?


The wastegate DCs are up in the 70 percent range at the top of third.. You wont get much more out of it than that. the snails are moving as fast as they can.

I have an ARM 5 inch intercooler that I purchased new about a year ago. I do live in Texas where its hot and dry tho

[335e92tx]

Originally Posted by thormessiah

I have an ARM 5 inch intercooler that I purchased new about a year ago. I do live in Texas where its hot and dry tho

Im not sure that IC will be enough. I dont thinK get a 20 degree increase on a 10 sec pull.. but thats not the issue now.

if you're driving the snails to 65-70 percent DC to get close to target boost you wont get much more.

Here's my suggestion, dont try to use an OTS map to meet your needs. Bite the buttlit now and get a custom tune. Someone with some n54 specific info will keep you in the sweet spot as things change. For one, a little more fuel will help keep IATs down a bit. They can also do some predictive stuff that will keep you out of retards right after the shift (when throttle closures become an issue).

[thormessiah]

Originally Posted by 335e92tx

Im not sure that IC will be enough. I dont thinK get a 20 degree increase on a 10 sec pull.. but thats not the issue now.

if you're driving the snails to 65-70 percent DC to get close to target boost you wont get much more.

Here's my suggestion, dont try to use an OTS map to meet your needs. Bite the buttlit now and get a custom tune. Someone with some n54 specific info will keep you in the sweet spot as things change. For one, a little more fuel will help keep IATs down a bit. They can also do some predictive stuff that will keep you out of retards right after the shift (when throttle closures become an issue).

Sounds good! Thanks mate

[ZeroCool]

https://datazap.me/u/crashoverride/s...og=0&data=3-20

Can someone take a look at my log and give me their thoughts on why it's running so lean?

I did a baseline data log of my car before putting a tune on. I noticed it's running a lot leaner than I expected (13.5-14 AFR) and I saw some timing corrections on all cylinders. I got new plugs and coils so maybe that will help with the timing but what about the AFR?

Thanks