[BlackBB6]

Originally Posted by FlyLow335i

Who says they haven't lol I go back and forth between what gas and mixtures I run.

I've found an 85/15 mix of 93/E85 did wonders for my timing. Maybe after downpipes and IC i'll get a pro tune done and post results, wont be for a while though.

[rader1]

Originally Posted by Dackz

Not comfortable with that much boost out of the "conservative" map. Especially when the v3.01 was about right. Now on v4.01 there almost isn't a difference between drive and sport. I was far more comfortable running the lower boost of the drive map but when 90% of my commute is highway, v4.01 is the way to go (got 31mpg this morning)

I was just hoping they would keep the parameters nearly identical but lower the boost since it is supposed to be a conservative map.

13-14psi is well within the effeciency of the stock turbos(especially in the mid range) even at your altitude. I've been running 18+psi for several months now with zero ill effects(as have hundreds of other people.) So you'll be fine.

[Jake@MOTIV]

Originally Posted by BlackBB6

I've found an 85/15 mix of 93/E85 did wonders for my timing. Maybe after downpipes and IC i'll get a pro tune done and post results, wont be for a while though.

Yep. I change my mixture trying new things but got codes with about a 25-30% mix of e85 so i backed down a bit. I get 0 timing corrections and my timing curve is MUCH more aggressive than the OTS maps. Car feels great.

[BlackBB6]

For anyone interested, here is what I saw in my logs before and after E85. The 2 93oct only pulls were actually much cleaner than a majority of my pulls as far as timing went, so the difference might be understated.

View post on imgur.com

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View post on imgur.com

Edit: realized why those two logs looked better, they were from octane booster testing. Corrected descriptions and added one from just 93 shell vpower.

[Dackz]

Originally Posted by rader1

13-14psi is well within the effeciency of the stock turbos(especially in the mid range) even at your altitude. I've been running 18+psi for several months now with zero ill effects(as have hundreds of other people.) So you'll be fine.

Well, I know many people that have had their turbos start to make the siren noise after running too much boost. That is my concern. I do notice on the logs that the boost tapers well towards the end and I can certainly feel the car slow down after 6000rpm.

I just wanted to err on the side of caution, however, I know having a tune does not do that. Just looking for a stouter DD that will last me a long long time before I "have" to buy upgraded turbo's. I do like what the cobb has offered so far though. Smooth, responsive, easy to use, etc.

[rader1]

Originally Posted by Dackz

Well, I know many people that have had their turbos start to make the siren noise after running too much boost. That is my concern. I do notice on the logs that the boost tapers well towards the end and I can certainly feel the car slow down after 6000rpm.

I just wanted to err on the side of caution, however, I know having a tune does not do that. Just looking for a stouter DD that will last me a long long time before I "have" to buy upgraded turbo's. I do like what the cobb has offered so far though. Smooth, responsive, easy to use, etc.

Yeah, I understand your POV. Unforutnately, the stock turbos seem to be very hit or miss. I figure, run it till it untill something breaks and then upgrade and move on. Different strokes for different folks.

[Imperator]

Originally Posted by BlackBB6

I've found an 85/15 mix of 93/E85 did wonders for my timing. Maybe after downpipes and IC i'll get a pro tune done and post results, wont be for a while though.

How easily/quickly does E85 dilute with E10 93-octane during a fillup?

From an empty tank, how much E85 do you usually pump in before topping off the rest with 93?

What stations offer E85 in Dallas? Availability seems scarce up in N.Dallas/Plano.

[BlackBB6]

Originally Posted by Imperator

How easily/quickly does E85 dilute with E10 93-octane during a fillup?

From an empty tank, how much E85 do you usually pump in before topping off the rest with 93?

What stations offer E85 in Dallas? Availability seems scarce up in N.Dallas/Plano.

I took the log about 3-4 minutes after topping off, and about 2 city miles down the road. I'm assuming it mixed in well enough at that point.

I've only topped off 2 tanks with e85. Both times I was filling from the 2nd hash from E on the gas gauge. I put in 11 gallons of 93 octane which left room for 2.5 and 2.59 gallons of E85 before I was full. I was aiming for no more than 20% and ended up with 15-16% which was enough for me. I'll know how it affected my MPG after this tank runs out.

I've only seen one station in Plano, it was listed on this site here: http://e85refueling.com/
There are some scattered around the metroplex, the one I've used was in Carrollton off Hebron and Old Denton.

I ran a full tank of just 93 after both the octane booster and the first 93/E85 mix.
I don't plan on running this long term, I just wanted to see the difference for myself.

[Deadwrong]

Im starting to get jealous reading about all the goodies the customers of other tunes have been getting lately while we sit in limbo....

[Pseudo Nim]

Originally Posted by Deadwrong

Im starting to get jealous reading about all the goodies the customers of other tunes have been getting lately while we sit in limbo....

Like what? (sorry, not followed other tunes)

[benzy89]

Originally Posted by Pseudo Nim

Like what? (sorry, not followed other tunes)

The next big thing on the N54 platform is gonna be Shiv/Vishnu's single-turbo application. They've been posting on threads, videos & dyno sheets showing 600 WHP+. A lot of people are running after it and have been dumping things like their downpipes + RB turbos so they can buy the single-turbo kit the second it goes on sale.

I'm just ready to put in my FMIC + DPs so I'm ready the minute COBB releases the non-beta Stage 2 + FMIC Maps

[RnmEvo9]

Originally Posted by benzy89

I'm just ready to put in my FMIC + DPs so I'm ready the minute COBB releases the non-beta Stage 2 + FMIC Maps

Um Cobb has released the official Stage 2+FMIC, its called v301.

[benzy89]

Originally Posted by RnmEvo9

Um Cobb has released the official Stage 2+FMIC, its called v301.

see non-beta part, specifically referring to the v40x maps

[RnmEvo9]

Originally Posted by benzy89

see non-beta part, specifically referring to the v40x maps

V301 is non beta, but I see now that you are referring to V401 as a requirement lol.

[benzy89]

Originally Posted by RnmEvo9

V301 is non beta, but I see now that you are referring to V401 as a requirement lol.

Yeaaaa dude, I mean I can't even run the V3 maps since my DPs are in the mail & I'm buying the FMIC in the next week or so -- REALLY hoping to have it all on and the new maps by the end of May

[rader1]

Originally Posted by Pseudo Nim

Like what? (sorry, not followed other tunes)

The only thing the other tunes really have are no lift shifting and 2 step launch control. Both of which will be implemented by Cobb eventually. There is a lot of buzz around shiv's single turbo, but to be honest, it's a dissapointment. There are a lot of people on here that seem to ignore all the shortcomings/failures of the kit. Either that or they're experience with modifying cars is limited only to this platform and they don't know a whole lot.

[Deadwrong]

Im specifically referring to the fact that cobb doesn't have race maps released so we can't run race gas, meth, or E85 unlike the other major tunes....

[trufus]

Originally Posted by rader1

The only thing the other tunes really have are no lift shifting and 2 step launch control. Both of which will be implemented by Cobb eventually. There is a lot of buzz around shiv's single turbo, but to be honest, it's a dissapointment. There are a lot of people on here that seem to ignore all the shortcomings/failures of the kit. Either that or they're experience with modifying cars is limited only to this platform and they don't know a whole lot.

Can you elaborate? What are the disadvantages to his single turbo?

Not trolling, genuinely curious.

[E90Company]

Originally Posted by trufus

Can you elaborate? What are the disadvantages to his single turbo?

Not trolling, genuinely curious.

It's because people expected much greater drag times than what has been accomplished thus far. You can get VERY close to single turbo times on the stock turbos

[benzy89]

Originally Posted by trufus

Can you elaborate? What are the disadvantages to his single turbo?

Not trolling, genuinely curious.

Every1s thinking that going from twin-turbo to a single, monster turbo is gonna immediately have the impact it did on Supras. That they went from mid-600 HP cars to 1200 HP beasts. The N54 is a much more complex motor then the 2JZ in the Toyota, so right now the only "guaranteed" solution for getting max power in a 335i is FBO, RB Turbos & Meth.

[2Times]

Originally Posted by E90Company

It's because people expected much greater drag times than what has been accomplished thus far. You can get VERY close to single turbo times on the stock turbos

The launches weren't there to pull the times/trap people were looking for. Just go back to the airstrip runs and I didn't any N54s keeping up with him there.

Back on-topic... what would the benefit of an e85 map be over a meth map? I'd plan on focusing on one or the other... too much maintenance to get 93/e85/meth lol.

[trufus]

Got it, thanks. I was under the impression that the Vishnu single turbo wasn't that big. I don't know that much about turbos to know what's big or small though. Time for some google action.

Sorry about the off topic convo.