[gqmd]

I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.

[David1]

Originally Posted by gqmd

I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.

You can be sure of that. They have learned alot in the past couple of years.

[alq80]

Originally Posted by gqmd

I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.

if there's a will, there's a way!

[scheherazade]

Originally Posted by Kelvin1000

Bigger single Turbo could improve Top End no?

To minimize latency, you'd want to pick the smallest single that will do the job right.

Single doesn't necessitate 'big', just 'big enough'.

If BMW's goal is no-lag, then they need a single turbo that is as small as possible, while still able to produce 300 hp before efficiency collapses.

What they end up choosing will dictate how much more top end you can get out of that setup.

It could be a little more efficient if it's 'just big enough'... or a lot better if it's got plenty of headroom.

I'm basically saying that just because it's a single, we shouldn't assume it's some 30R or whatever.

-scheherazade

[cstavaru]

Originally Posted by David1

You can be sure of that. They have learned alot in the past couple of years.

It may be so, but at the same time this engine would not have been such a success without the tuning options.

[GreenPlease]

Fully variable valve timing systems such as valvetronic work miracles with forced induction and low end response so I'm holding out hope for a "modestly" sized turbo. With that said, the N55 is very likely to be very tune unfriendly.

[kjrulz]

Originally Posted by cstavaru

It may be so, but at the same time this engine would not have been such a success without the tuning options.

i completely agree. would have got something else if it wasn't so easy to tune when my warranty expires.

[Eazy-e]

I wonder how durable will the "new" HPFP will be

[SLCGoonski]

I've heard rumors of all digital and encrypted communication on the N55...rather than the 'simple' analog communication in the N54. The tuners will be tested...

[Kelvin1000]

Originally Posted by scheherazade

To minimize latency, you'd want to pick the smallest single that will do the job right.

Single doesn't necessitate 'big', just 'big enough'.

If BMW's goal is no-lag, then they need a single turbo that is as small as possible, while still able to produce 300 hp before efficiency collapses.

What they end up choosing will dictate how much more top end you can get out of that setup.

It could be a little more efficient if it's 'just big enough'... or a lot better if it's got plenty of headroom.

I'm basically saying that just because it's a single, we shouldn't assume it's some 30R or whatever.

-scheherazade

Agreed, but if you look at the pictures, it looks pretty big compared to the little snails. Not to mention, the placement and the fact that its just one Turbo which will help to make it easier to retrofit aftermater Turbos.

[GreenPlease]

Unless tuners can break valvetronic, all other tuning will essentially be for not.

I've heard rumors of all digital and encrypted communication on the N55...rather than the 'simple' analog communication in the N54. The tuners will be tested...

Maybe my idea of a standalone ECU wasn't so over the top after all.