[filet.M2c]

Originally Posted by weyland

In the UK we get high quality 99 octane. I am presuming the ECU will auto adjust the timing - I wonder what this will make on 99?!

UK uses RON rating for fuel whereas US uses (Ron+Mon)/2. 99 RON is approximately 94 octane here in the US.

[Bluenose-2er]

Originally Posted by synergist

How so? He says that there are no gains with 91 octane, which would probably hurt his sales a bit. He also says from a "performance perspective" it is the same, as in it makes the same power the the F30 335i and M235i.

I get he is just talking about the M2 engine... as the chassis obviously has a lot over the M235i. But saying it is just an N55 with "a tune from the factory" kind of implies he could flash tune an M235i and get the same engine. Maybe I am misreading it, but that was my take. So it kind of ignores the hardware upgrades BMW put into this version of the N55.

[auf Deutsch]

Originally Posted by synergist

This was already posted in the turbo thread by I believe it deserves its own thread/ discussion. Credit to PrematureApex for linking it. From Terry@BMS


http://www.n54tech.com/forums/showthread.php?p=462448
What are all your thoughts

My thoughts are as follows. The S55 is a fucking beast.

[omasou]

My understanding, correct me if I am wrong, is that the M235i was tuned by M and more than just an ECU tune.

[TTFS]

Originally Posted by ROBNYC

They already have and are working more & more.

EnzoPerformance
PrecisionTuning
MissionPerformance
Just to name a few

+1 We were the first car state side. In fact we will run the car at wannagofast next saturday with down pipe and proper tune as the car is almost at 1k miles. It is definitely more ideal in my opinion than a piggy back keep all the 1000 different maps still doing what they do.

[atxsk8r]

Originally Posted by kovsky

Yes, some people are not quite right in the head.

Yep, so true but i outgrew that phase

I'll be leaving the motor stock, plenty of hp to have fun with.

[MTHRAR]

Originally Posted by atxsk8r

Yep, so true but i outgrew that phase

I'll be leaving the motor stock, plenty of hp to have fun with.

So true. I was playing around today on a back road and when overboost kicked in, it's like a kick in the pants. This is all while still being in my break in period (Not revving past 4.5k rpm), so I can't imagine dropping a gear to get the revs up past 5K rpms and just racing to redline. I've only owned 1 turbo car - a 335i for 4 months and I can firmly say that this M2 is freakin fantastic stock. I can't even imagine this car with plus 70hp/70 ft-lb as it's already a hoot to drive. I am coming from E36/E46 M3s so I haven't really had the turbo experience other than that 335i that had all those HPFP failures.

Bottom line is....it's fun as hell already.

[BurpZilla]

After 3 years i'll fall in love again after I get the dinan setup. :-)

[Twix]

Originally Posted by ROBNYC

They already have and are working more & more.

EnzoPerformance
PrecisionTuning
MissionPerformance
Just to name a few

Yeah, I've seen stuff from all these guys before and it's all good stuff. I'm talking about something closer to what SuperChips offers for domestics, something in between a piggyback and a full on bench tune.

JB4 is great and all since it's really user friendly, but it lacks the ability from what I've seen to be able to change timing, idle RPM and tire sizes and such directly from the unit.

The problem with the bench tunes is, I live in Canada, which makes it difficult for me to get this done and not have to either truck my car somewhere far away or drive it there. There's also the whole bit of warranty with the tune itself. If I have a problem, I'm stuck towing or shipping my car which would cost probably close to what a full on stand alone would run me.

[M3 Adjuster]

Originally Posted by MTHRAR

So true. I was playing around today on a back road and when overboost kicked in, it's like a kick in the pants. This is all while still being in my break in period (Not revving past 4.5k rpm), so I can't imagine dropping a gear to get the revs up past 5K rpms and just racing to redline. I've only owned 1 turbo car - a 335i for 4 months and I can firmly say that this M2 is freakin fantastic stock. I can't even imagine this car with plus 70hp/70 ft-lb as it's already a hoot to drive. I am coming from E36/E46 M3s so I haven't really had the turbo experience other than that 335i that had all those HPFP failures.

Bottom line is....it's fun as hell already.

Agree !

It's scary fast already. Drive the hell out of it stock. It was designed to run a long time that way.

If I wanted more than 400 hp then I would be drooling over the M4 perhaps , but 350 or so is just fine..

[pikkagtr]

Originally Posted by auf Deutsch

My thoughts are as follows. The S55 is a fucking beast.

With some e85 dps and map2 only ......500+ ftlbs at 3k rpm
The acceleration is ferocious

[SliChillax]

Still don't understand why they didn't use the B58 engine. So what would it take to the M2 reliably up to around 430hp without e85?

[zenmaster]

Originally Posted by SliChillax

Still don't understand why they didn't use the B58 engine. So what would it take to the M2 reliably up to around 430hp without e85?

The M2 turbo's air-flow potential, using stock exhaust, has been maxed out from the factory. For 430hp (not whp), the downpipe must be replaced. Also need tune and 93oct.

[PrematureApex]

Originally Posted by SliChillax

Still don't understand why they didn't use the B58 engine. So what would it take to the M2 reliably up to around 430hp without e85?

Originally Posted by zenmaster

The M2 turbo's air-flow potential, using stock exhaust, has been maxed out from the factory. For 430hp (not whp), the downpipe must be replaced. Also need tune and 93oct.

You're going to need more than that. To make, what, an honest 380 whp on 93 alone? That's a turbo upgrade.

[PrematureApex]

Originally Posted by Twix

JB4 is great and all since it's really user friendly, but it lacks the ability from what I've seen to be able to change timing, idle RPM and tire sizes and such directly from the unit. .

Because you're going to be dialing in the timing on your tune? Please.

[zenmaster]

Originally Posted by PrematureApex

You're going to need more than that. To make, what, an honest 380 whp on 93 alone? That's a turbo upgrade.

Repeating, downpipe+tune+93oct for 380whp.

[ASAP]

[PrematureApex]

Originally Posted by zenmaster

Repeating, downpipe+tune+93oct for 380whp.

Repeating, you're out of your mind.

An M235 doesn't make 100+ bhp over stock with a DP and a tune. Period.

Those are N54 numbers, on a good day.

380 whp on pump/tune/DP? On an average dyno? For an N55?

Why do you post if you don't know what you're talking about?

By all means, post a handful of dynos. We'll wait.

[PrematureApex]

380 whp on a stock snail N55 means E85/100/meth.

Common knowledge.

Stating otherwise is simply embarrassing yourself.

[TTFS]

Originally Posted by PrematureApex

Repeating, you're out of your mind.

An M235 doesn't make 100+ bhp over stock with a DP and a tune. Period.

Those are N54 numbers, on a good day.

380 whp on pump/tune/DP? On an average dyno? For an N55?

Why do you post if you don't know what you're talking about?

By all means, post a handful of dynos. We'll wait.

Yes you can check out our testing.. it is possible not problem. I can not speak for piggy back, but Terry has done a good job with supporting documents of what he does and the power. As for a ecu tune + down pipe making 380 yes we have that covered with a stage 1 tune.

[zenmaster]

Was going to reply yet again, but that sums it up.

[PrematureApex]

Originally Posted by zenmaster

Was going to reply yet again, but that sums it up.

you were going to reply with what? Absolutely no legitimate data backing up your ridiculous claims?

This is not new. This is not up for debate.

On a realistic dyno, an M235 engine does NOT make 100+ bhp over stock on 93 and a downpipe.

Arguing as such is asinine.

As your post history suggests...you're a moron.