[robc1976]

Did a comparision of logs with E85/93 and just plain shell 93 (sucks LOL!!) Taking car to dealer and want 93 only in the tank. Well needless to say E85 really does a lot as you can see by the logs. Car just felt sluggish in comparsion. For the G5 logs I had a 38/62 mix. My car throws fuel pressure codes if I mix higher and throws lean codes if I disable open loop...but with a 35-38 mix it lets auto mapping do its thing. I used to be able to run a buit higher but had no higer boost and timing was the same. With 93 only timing was not great and boost dipped to 12-13 and barely made 16-17 (run 2 was not so lucky) and for a short time. With E85 boost was held higher at 17-18 and dipped down to 15 and went right back up...pretty awesome. I have done back to back runs on the G5 E85/93 mix and logs stay the same.

E85/93:



Shell 93 only run #1



Shell 93 only run #2

[boostaholic786]

haha dude I totally did this same thing and the car felt completely horrible with 93 only!!!! It felt soooo sluggish and just didnt feel right!!! HUGE difference!!!

[robc1976]

Originally Posted by boostaholic786

haha dude I totally did this same thing and the car felt completely horrible with 93 only!!!! It felt soooo sluggish and just didnt feel right!!! HUGE difference!!!

Totally agree man....different car with E85!

[5soko]

No meth?

[robc1976]

Originally Posted by 5soko

No meth?

I have a new N54 coming with Rbs & possible single turbo...then it will be meth time.

[GreekMaverick]

Originally Posted by robc1976

I have a new N54 coming with Rbs & possible single turbo...then it will be meth time.

Wait....WITH RB's and SINGLE?...Some kind of Frankenstein 3 turbo setup????? What?????

Or you meant to say with RB's OR Single???????

[robc1976]

Originally Posted by GreekMaverick

Wait....WITH RB's and SINGLE?...Some kind of Frankenstein 3 turbo setup????? What?????

Or you meant to say with RB's OR Single???????

Lol!! One or the other, the single is hat I am most leaning towards.

[GreekMaverick]

Originally Posted by robc1976

Lol!! One or the other, the single is hat I am most leaning towards.

nice man, thinking about single my self.....BUT the RB is pretty amazing for such a low affordable price....!

[BrianMN]

looks like fun.

Why does AFR look to be the same between the E85 mix and Gas only logs?? The 'Box is supposed to change AFR with E85?

Could you post the actual .csv file?

[robc1976]

Originally Posted by BrianMN

looks like fun.

Why does AFR look to be the same between the E85 mix and Gas only logs?? The 'Box is supposed to change AFR with E85?

Could you post the actual .csv file?

When I get home I will post them!

[M3 Eater]

Rob, RBs have a proven track record of reliable service. The HP projections on the single from Vishnu look amazing and I beleive that there is one car out there already, however, there are prob 15 RB turbo cars posting nothing but positive results. If you want to have the fastest Bimmmer a couple days out of the year, go for the single until we all get more feedback. Otherwise, enjoy a warranty as the RBs are undetectable when all other mods are removed.

[mrbillytalent]

Huge difference! Thanks for sharing. These are pretty fun to read.


e85 ftw!!

[rudypoochris]

Originally Posted by BrianMN

looks like fun.

Why does AFR look to be the same between the E85 mix and Gas only logs?? The 'Box is supposed to change AFR with E85?

Could you post the actual .csv file?

JB4 is targeting a lamba value, not a specific AFR. AFRs are back calculated from lambda.

[robc1976]

Originally Posted by rudypoochris

JB4 is targeting a lamba value, not a specific AFR. AFRs are back calculated from lambda.

I figuredthst was the case but was not 100% sure.

[robc1976]

Originally Posted by M3 Eater

Rob, RBs have a proven track record of reliable service. The HP projections on the single from Vishnu look amazing and I beleive that there is one car out there already, however, there are prob 15 RB turbo cars posting nothing but positive results. If you want to have the fastest Bimmmer a couple days out of the year, go for the single until we all get more feedback. Otherwise, enjoy a warranty as the RBs are undetectable when all other mods are removed.

Very good points Chris, plus RB turbos are 20 mins from my house lol!

[rudypoochris]

Well that and the RB power cover looks more usable to me than the single. You will be faster for a lower peak HP with RBs compared to the single. Your spool is also going to be quicker.

[BrianMN]

Originally Posted by rudypoochris

JB4 is targeting a lamba value, not a specific AFR. AFRs are back calculated from lambda.

Ummm, That doesn't really matter or apply. If the JB4 were showing real AFR it'd be wayyyy different since E85 Stoich (1 Lambda) is 9.75:1 AFR.

So- Mike claimed Lambda changed when running E85.... Since the JB4 is still displaying gasoline AFR, it will reflect the changes in lambda.

Judging from the logs above- it looks like lambda did not change from the user running E85.

[M3 Eater]

Originally Posted by robc1976

Very good points Chris, plus RB turbos are 20 mins from my house lol!

Also, you would have to leave BMS and go over to the Vishnu camp. Many have tried it, most have come back. Don't get me wrong, Vishnu has a real winner put together with their single set up, but I have a feeling that most cars built that way would not be considered daily drivers. If you want a race car, the single should put out upto 800hp. So new trans set up, a whole new car build, undertested, underproven. Give Vishnu 2 years to get the bugs out and by then BMS will have a handle on the guys that insist on converting the n54 to a single. Why not get a supercharged m3?

[BrianMN]

Originally Posted by M3 Eater

Also, you would have to leave BMS and go over to the Vishnu camp. Many have tried it, most have come back. Don't get me wrong, Vishnu has a real winner put together with their single set up, but I have a feeling that most cars built that way would not be considered daily drivers. If you want a race car, the single should put out upto 800hp. So new trans set up, a whole new car build, undertested, underproven. Give Vishnu 2 years to get the bugs out and by then BMS will have a handle on the guys that insist on converting the n54 to a single. Why not get a supercharged m3?

Haha, this either has to be a good joke, or you are obviously trolling. It wouldn't be so bad if what you said was even close to reality or factual.

[805beemer]

Originally Posted by BrianMN

Ummm, That doesn't really matter or apply. If the JB4 were showing real AFR it'd be wayyyy different since E85 Stoich (1 Lambda) is 9.75:1 AFR.

So- Mike claimed Lambda changed when running E85.... Since the JB4 is still displaying gasoline AFR, it will reflect the changes in lambda.

Judging from the logs above- it looks like lambda did not change from the user running E85.

Can you post a proceed log showing 9.75:1 afr's? Don't the proceed e85 maps run a point leaner than the pump gas maps, and if they do can you explain why.

[rudypoochris]

Originally Posted by BrianMN

Ummm, That doesn't really matter or apply. If the JB4 were showing real AFR it'd be wayyyy different since E85 Stoich (1 Lambda) is 9.75:1 AFR.

So- Mike claimed Lambda changed when running E85.... Since the JB4 is still displaying gasoline AFR, it will reflect the changes in lambda.

Judging from the logs above- it looks like lambda did not change from the user running E85.

Who is mike? I was just responding to your post about why the AFRs appear the same. You said afr is supposed to change, but it shouldn't significantly as far as what the jb4 reports even though the real afr does change. Target is usually around 0.8 or 0.85 lambda at wot.

[Former_Boosted_IS]

Originally Posted by M3 Eater

Also, you would have to leave BMS and go over to the Vishnu camp. Many have tried it, most have come back. Don't get me wrong, Vishnu has a real winner put together with their single set up, but I have a feeling that most cars built that way would not be considered daily drivers. If you want a race car, the single should put out upto 800hp. So new trans set up, a whole new car build, undertested, underproven. Give Vishnu 2 years to get the bugs out and by then BMS will have a handle on the guys that insist on converting the n54 to a single. Why not get a supercharged m3?

Are you serious? I have used the JB4 and Procede now and both are very good tunes. You choose what works best for your needs. I have a single now on my car with the procede and I don't have a "new trans", "new car build", and Vishnu has tested the living crap out of their car. Nothing personal, but it is not fair to bash others accomplishments without factual data to back it up.