E46 Remapping

s0ck · 12 Feb 2010 at 00:50

mr_x_plosion said:
I bet it would feel different after but over all not that much quicker.

If those graphs are to be believed it should *feel* substantially quicker...

thepharcyde · 12 Feb 2010 at 08:20

Only positive for me chipping the ST170 was my fuel economy went up.

It made 171bhp on the rollers, with a induction kit.

merlin · 12 Feb 2010 at 08:26

s0ck said:
If those graphs are to be believed it should *feel* substantially quicker...

As said, different ambient temperatures. There's a gain there, but possibly not 15bhp.

merlin · 12 Feb 2010 at 08:28

Thinking back I reset the ECU a few days before the PS RR on the 330ci and it was also on a splash of octane booster. I did the same when I run it at Donington too.

Westyfield2 · 12 Feb 2010 at 08:47

[TW]Fox;15944276 said:
That torque curve is tempting. How much is this and what are the chances it will explode my engine?

B&W have a good reputation (but work's filtering their website right now) and a friend knows the owner, and Evolve Automotive have a good reputation too.

I had a good read on E60.net and it's one of those two that I'd go to (and I'll get Dad to do his dirty dieseasel soon). Main thing really is to avoid someone that just turns up to your drive and remaps it there and then. It's far better to go to guys like Evolve and have them check the ECU for errors, run it on the rollers, then remap it and tweak the map to suit your engine and run it on the rollers again - especially on a higher mileage engine.

Hatter The Mad · 12 Feb 2010 at 09:32

Jez said:
Ooo, whats the specs on that? Based on the N-series engine?

http://en.wikipedia.org/wiki/BMW_N55

Twin scroll turbo replaces the two turbos.