[NICKTENN]

You gotta join our BMWCCA chapter (River City Bimmers)! Our website is down for maintenance, but we have a Facebook page. As for tuning, not sure, but for general service most people suggest memphis motorwerks.

[RollingLower42]

Hey, what are the guide lines for E85? I found a station near where I am at. Is it a mixture of E85 I do with 91 octane?

Or can I mix 100 Octane and E85? Or should I not do that?

What are the guidelines?

[tdizzle]

Originally Posted by RollingLower420

Hey, what are the guide lines for E85? I found a station near where I am at. Is it a mixture of E85 I do with 91 octane?

Or can I mix 100 Octane and E85? Or should I not do that?

What are the guidelines?

I think most mix 91 or 93 with E85. E85 basically is like running 110 octane depending on your mixture, so it really doesnt matter the regular fuel you're running with it as far as I know. You do need to set up your car to run E85 with the right tune and wires I believe.

The JB4 crew can help answer specifics. There is some issues with our cars not being set up for E85 from the factory, E85 is pretty corrosive and eats up seals if I recall correctly, so some tweaks probably need to be made.

I'm just speaking from information that I've stumbled upon so don't consider me the expert in this. Still learning myself.

[verbs]

Originally Posted by tdizzle

There are quite a few cars tuned with JB4s and bolt ons running 12.0/118mph in the 1/4 mile.

Not N55 335i cars there aren't.

[verbs]

Originally Posted by Bowser330

Whoever is saying that a N55+FBO+E85/Meth can compete with and perform comparably to the M5/6 V10 is very likely correct, at least at speeds under 130mph...

Compete and perform comparably sure, but an N55 335i walking an M5 is a different story.

E60 M5
4090lbs 430whp (stock) = 9.51 lbs/whp

F30 335i
3594lbs 370whp (Stage2 Tune+DP+E85)= 9.71 lbs/whp
3594lbs 380whp (Tune+DP+E85+??????)= 9.46 lbs/whp
3594lbs 390whp (Tune+DP+E85+??????)= 9.22 lbs/whp
3594lbs 400whp (Tune+DP+E85+??????)= 8.99 lbs/whp

I do think it's important to consider the huge impact of gearing here. The M5 has the gear multiplier advantage being that it can stay in each gear till 8250rpms stock, so lbs/whp isn't going to tell the whole story.

[sydande]

Originally Posted by verbs

Not N55 335i cars there aren't.

without meth too....11.8@116mph

[verbs]

Originally Posted by sydande

without meth too....11.8@116mph

Just curious, do you know if that car is an N55 or an N54? Any idea what the track's density altitude was at the time?

That's a great ET for the mph; obviously on slicks or ultra sticky DRs. Would be curious to see the full mod list.

On a track a car like that stands a chance to put solid distance on an E60 M5 out of the hole, but outside of having slicks on a track, that car from roll wouldn't "walk" an E60 M5...trap speed is telling....if the car does in fact have full slicks that does lower mph just a shade.

[ScarecrowBoat]

Originally Posted by verbs

Just curious, do you know if that car is an N55 or an N54? Any idea what the track's density altitude was at the time?

That's a great ET for the mph; obviously on slicks or ultra sticky DRs. Would be curious to see the full mod list.

On a track a car like that stands a chance to put solid distance on an E60 M5 out of the hole, but outside of having slicks on a track, that car from roll wouldn't "walk" an E60 M5...trap speed is telling....if the car does in fact have full slicks that does lower mph just a shade.

Exactly, that had to have been on DRs. Also everybody is comparing LBS/HP(Max). That's not really fair. The BMW turbo motors (thus far) are really tuned for good acceleration and mid-range torque which you need in everyday driving. What's most important for acceleration is how long you have those high HP/torque numbers. The 35 motor just isn't great for sustaining that acceleration compared to the M cars which can stay in a gear for much longer due to the high redline.

[tdizzle]

Originally Posted by verbs

Just curious, do you know if that car is an N55 or an N54? Any idea what the track's density altitude was at the time?

That's a great ET for the mph; obviously on slicks or ultra sticky DRs. Would be curious to see the full mod list.

On a track a car like that stands a chance to put solid distance on an E60 M5 out of the hole, but outside of having slicks on a track, that car from roll wouldn't "walk" an E60 M5...trap speed is telling....if the car does in fact have full slicks that does lower mph just a shade.

That is a great time. I'd have expected a higher trap for that time though, maybe 122ish. He would've had to hook up with little no wheelspin for that.

[buildbright]

That car that ran 11.8 would walk the dog on an M5 if it had traction on the street. Look at the 60-130 times of simular tuned 335i's.

[Bowser330]

Originally Posted by verbs

Compete and perform comparably sure, but an N55 335i walking an M5 is a different story.




I do think it's important to consider the huge impact of gearing here. The M5 has the gear multiplier advantage being that it can stay in each gear till 8250rpms stock, so lbs/whp isn't going to tell the whole story.

I agree that the V10 has the rpm and thus gearing advantage versus the N55 however since the tuned N55 has so much more torque than the V10 its not as simple as "gearing wins"...

Example:**
V10 300wtq 10:1 ratio = 3000 multiplied wheel torque
I6TT 440wtq 7:1 ratio = 3080 multiplied wheel torque

So yes the M5 could rev higher and thus stay in a lower gear (10:1) giving it better torque multiplication. However since the N55's torque is so much more ( ~50% more in the low & mid range) even at the higher gear (7:1) the multiplied wheel torque for both are equally matched...now add the fact that the load is 500lbs less on the 335i (3590 vs 4090) and the 335i should accelerate faster with the same amount of multiplied torque...

** The "wtq" figures are relatively accurate, however the gear ratios used are example only, used to illustrate the point that an engine with more rpm isn't always faster; rpm, gearing, torque, and weight all matter.

[Gugs]

Can someone inform me. Do you connect the solenoid to the jb4 for stage 2 or still leave it left oem connected

[tdizzle]

Originally Posted by Gugs

Can someone inform me. Do you connect the solenoid to the jb4 for stage 2 or still leave it left oem connected

Email terry or one of the guys at burger for the fastest response or check out the forum.

His install guide:
http://www.n54tech.com/forums/showthread.php?t=13171

The 'guide' only touches on the new connections and doesn't mention the old ones, so I'm guessing you do not connect it as you do not connect it for Stage 1.

I'd double check to be sure though as I haven't seen anything specifically stating you do or do not for stage 2 and this is only ancillary evidence that you don't given it's not used for stage 1 and stage 2 doesnt specify that you need to....

[mikew2069]

Originally Posted by Gugs

Can someone inform me. Do you connect the solenoid to the jb4 for stage 2 or still leave it left oem connected

Leave it

[J-boogey]

first off stop trolling the hell out of this thread about what car is faster no one cares.. Just installed stage2 a lot faster than stage1 loving it

[NICKTENN]

Originally Posted by J-boogey

first off stop trolling the hell out of this thread about what car is faster no one cares.. Just installed stage2 a lot faster than stage1 loving it

Are you just running Map 1?

[tdizzle]

Originally Posted by J-boogey

first off stop trolling the hell out of this thread about what car is faster no one cares.. Just installed stage2 a lot faster than stage1 loving it

How difficult was the install? The other stage 2 videos were a bit iffy but seemed like you could mess something up if you didn't get it right. I'm mildly afraid of tinkering with those wires if I'm not 100% sure...

[mikew2069]

Install was SO easy if you go slow and read the pdf. I was nervous at first too but once its all there laid out in front of you, its cake. But my harness also already had all the extra wires so that helped.

[J-boogey]

Originally Posted by tdizzle

How difficult was the install? The other stage 2 videos were a bit iffy but seemed like you could mess something up if you didn't get it right. I'm mildly afraid of tinkering with those wires if I'm not 100% sure...

If your not handy at all what so ever deff have someone whose familiar with installing burger tunes do the install. I had my friend install it took about 20 mins. Car is really fast now, I lose traction easily now even with the xdrive, it still needs to adapt though put like 25 miles on the car with stage2 installed. I suggest hooking it up to the laptop through the usb to confirm what map you are in.. The steering wheel controls don't give you a confirmation on what map your in.

[tdizzle]

Originally Posted by mikew2069

Install was SO easy if you go slow and read the pdf. I was nervous at first too but once its all there laid out in front of you, its cake. But my harness also already had all the extra wires so that helped.

I have the Stage 1 with the wires so that's a bonus. Is there a specific guide with pictures for the F30 or is it just "it's similar to the F10 so use that one" theory?

It doesn't look "difficult" as you're only connecting a few wires, I've installed car amps and whatnot that are more complicated than this, but I wasn't messing with a $55k+ car's ECU either. My only real concern is ensuring I'd tap into the correct wires more than anything else. I presume loading the correct firmware isn't difficult.

That and I figured without DP or E85, Stage 2 would be virtually identical to Stage 1.

[mikew2069]

the pdf on the bottom of the first post here has the instructions... http://www.n54tech.com/forums/showthread.php?t=18588

[J-boogey]

Originally Posted by NICKTENN

Are you just running Map 1?

yes running map1