[NOTM3]

I Was looking to do this really soon, i have fbo and currently have the V3. Should i pick up a jb4 and Stack them or get it pro tuned? and i was also looking to get a low pressure fuel pump to run e85 safely any ideas where to get it and not pay alot of $$$$

[psmitty95]

I vote stack. Best of both worlds in my opinion

[stashtrey]

In stacked and next step is LPFP. However....I have been running 40+% e85 for 6+ months. The recent BMS flash and myJB4 g5 is wicked.

[jayzF30]

I say get your car dialed in with a protune by a good knowledgeable shop that knows the N54 well.

[NOTM3]

Originally Posted by stashtrey

In stacked and next step is LPFP. However....I have been running 40+% e85 for 6+ months. The recent BMS flash and myJB4 g5 is wicked.

Did u dyno ur car ? Also was the difference from non stack to stack is it noticeable/going to be worth 500$ price tag

[Allen@MOTIV]

A protune(as long as it is done by a shop that knows what they're doing in regards to the N54) will always result in the best running car. At one point in time the piggybacks boost control was hard to beat... but now that's no longer a reality. We have thousands of datalogs demonstrating the amazing boost control we have through Cobb's ATP.

[deathbunny]

I am trying to figure the same thing out right now except with a procede stack with the upgraded pump and flex fuel kit. Im starting to think I should just sell the procede and OFT and keep my Cobb and get it protuned for the upgraded pump instead. I love the idea of having the sensor but not sure if I love it enough to justify the cost of procede + oft + sensor compared to just cobb + pro tune. UGGG First world problems

[NOTM3]

I might try the stack option first and if I don't like the results I could always sell the jb n get a protune

[NOTM3]

And I want to find the best in line low pressure fuel pump for e85 for it Any ideas

[Streetluger06]

Originally Posted by deathbunny

I am trying to figure the same thing out right now except with a procede stack with the upgraded pump and flex fuel kit. Im starting to think I should just sell the procede and OFT and keep my Cobb and get it protuned for the upgraded pump instead. I love the idea of having the sensor but not sure if I love it enough to justify the cost of procede + oft + sensor compared to just cobb + pro tune. UGGG First world problems

If I were you I would keep the procede and OFT and run the E85 map. That way you don't need the expensive sensor. This is what I do, straight E85 to E60 and its running very well, twice as good as before I stacked. That way whenever I cannot access E85 I just run map zero on 93 and all is well.

cheers

[deathbunny]

Originally Posted by Streetluger06

If I were you I would keep the procede and OFT and run the E85 map. That way you don't need the expensive sensor. This is what I do, straight E85 to E60 and its running very well, twice as good as before I stacked. That way whenever I cannot access E85 I just run map zero on 93 and all is well.

cheers

This might work well for me and is what I was planing on doing to start with. The sensor could be added later if I feel that its something I want. It all just seems a lot more complicated to get setup than a Cobb and I am having a hard time finding real directions on stacking them just bits and pieces I have found on others posts. I already have the Cobb (currently running E30 OTS) along with a procede V2.5 and OFT sitting in the garage waiting for the new procede / oft maps to get released, I have AT.

What were you running before you stacked?

[psmitty95]

Originally Posted by joe56football

Did u dyno ur car ? Also was the difference from non stack to stack is it noticeable/going to be worth 500$ price tag

I dynoed my car. Xi on mustang dyno 408whp/483wtq JB4 + flash + meth

[BoostAddict]

You know my vote, Joe. Stack has been great on 6at cars. You coming to Fast car Friday this week?

[BEAR-AvHistory]

Until the Pro Tuned cars start to show up at the top of the Drag Times listings I would/have stacked it.

[jayzF30]

What about those that are not pro tuned that got records on Drag Times and broke down after? I do not see how being listed on Drag Times equates to great quality tuning. I for one will never hit the quarter mile with my BMW even though I am very tempted.

Funny enough I just saw this posted on PTF's Facebook page:

http://dragtimes.com/BMW--335xi-Drag-Racing.html

Their protuned customer has the fastest 335 XI in the World now, on Drag Times. Maybe I should take mine out there after all and try it out. I just do not like the thought of breaking my axles right now.

[Joshboody]

Originally Posted by Allen@PTF

A protune(as long as it is done by a shop that knows what they're doing in regards to the N54) will always result in the best running car.

Hello, Mr new PTF person. There's 2 things I'd like to see in order to somewhat buy into this statement. No better proof then viewing logs as this is objective...

1. A log showing true linear throttle, meaning WOT at or very near 100% pedal travel. So a stepped log for maybe 50, 80, 100% would be great.
2. Part throttle drivability. Lowish throttle 20 and 50%. Maybe a similar log as above stepping the throttle. I would be looking for boost control and timing interventions below WOT at throttle transitions.

Edit: Cobb logs of course, as this is what you are promoting I assumed.

[2Times]

Originally Posted by Joshboody

Hello,...

Someone mentioned that you stacked Procede and Cobb in the past... is this true? Worth it?

[NOTM3]

Originally Posted by ***********

You know my vote, Joe. Stack has been great on 6at cars. You coming to Fast car Friday this week?

I am up to going. The car has been at bmw bc my abs pump went. Do u have any jb4s

[Joshboody]

Originally Posted by 2Times

Someone mentioned that you stacked Procede and Cobb in the past... is this true? Worth it?

yeah, but currently I'm using BT flash with procede... really the same thing. I like the stacked setup... best tuning tools IMO.

[suprchrgd]

I too am in this same position. I'm about to purchase an 08 335i on Friday. My buddy is running the jb4g5 with 55% e85/45% 93 mix and the car runs awesome. sees 16-17# regularly and has ran a 12.0 at 117 mph with on his 20" vossesn. This is with no other modifications. I def like the piggy back option and how you can control the tunes & settings on the fly through the steering wheel.

I will eventually be running 100% e85. So I was thinking about purchasing the Rrocede Rev3 with the backend reflash to start with. Then moving into with the e85 conversion kit and the inline lpfp..

[335_MI6]

Originally Posted by psmitty95

I dynoed my car. Xi on mustang dyno 408whp/483wtq JB4 + flash + meth

As im sure you know, final numbers don't matter the delta is what matters.....

Originally Posted by jazze90

What about those that are not pro tuned that got records on Drag Times and broke down after? I do not see how being listed on Drag Times equates to great quality tuning. I for one will never hit the quarter mile with my BMW even though I am very tempted.

Funny enough I just saw this posted on PTF's Facebook page:

http://dragtimes.com/BMW--335xi-Drag-Racing.html

Their protuned customer has the fastest 335 XI in the World now, on Drag Times. Maybe I should take mine out there after all and try it out. I just do not like the thought of breaking my axles right now.

To be fair to everyone, all the other cars on dragtimes.com (335XI) all have stock turbos. This one had upgraded twins...

[BEAR-AvHistory]

Originally Posted by jazze90

I do not see how being listed on Drag Times equates to great quality tuning. I for one will never hit the quarter mile with my BMW even though I am very tempted..

Time to wake up & smell the coffee. You personally might not like to drag race but I see in Dzenno (COBB Stage 3 Alpha/RP turbos ) listed in 14th/21st & 26th place behind the other two major BMW tuners with a 2008 listing.

The 1/4 mile might not appeal to everyone but, since tuning is about extracting performance from a car, its good for quick & dirty for comparisons.

Terminal speed is a good indicator of how much power the car actually has. There are any number of formulae that will convert terminal speed into a horsepower estimate.

Additionally its always nice to see what a car can do in real life off the dyno. Both of the other two major BMW aftermarket tuners regularly post 1/4 runs as part of their standard marketing programs.