330 (ci) tuning?

merlin

merlin

merlin

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Joined
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Anyone had (or looked into) a remap for their M54?

Just had a quote -

The gains on the 330ci are 15-20bhp and 25nm of torque. The replacement
panel filter you have is a good upgrade as this helps with the breathing.

We can attend your works address to apply the upgrade, fault codes are also
checked to make sure there are no issues. The cost would be £235 all in and
would take approx 2 hours.

If you have any further questions please do not hesitate to email or call me
on the numbers below.

Best Regards

Simon

www.e-maps.co.uk
Tel: 0870 753 8284
Mobile: 07973 553549
Click to expand...

That's a lot of extra ponies for not a lot of money. Assuming of course the claimed gains are real. And clearly it's just a generic map dropped straight into the ECU, not really "mapped".

Gains realistic? Sounds a bit fishy to me tbh.
 
PMKeates has one. Few guys on the E39 forum also, gets you 250bhp thereabouts.

Considering it.

What panel filter have you got and how much was it?
 
[TW]Fox said:
PMKeates has one. Few guys on the E39 forum also, gets you 250bhp thereabouts.

Considering it.
Click to expand...

Dyno proven?

Is he coming to the RR and running? If I see it with my own eyes....
 
DMS Claim 24-25bhp for their remap of the Z4 3.0 engine.

General consensus from what I've read is that that is a little on the optimistic side but their remaps are good and the difference is very noticeable.

DMS Automotive

Here's a Piston Heads thread about them link

[ED] They charge a bit more than £235 though [/ED]
 
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Yeah a lot of extra power from an NA engine which already makes good power for capacity.
I can understand why you are sceptical mate.

Would be good to hear from people who have had it done.
 
Hi m8

Why don't you ask them how they get the gains? Are they telling the ECU to advance the timing and therefor you will always need to fill with higher RON fuel to prevent the ECU retarding it?

Most power hikes like this come from cars ECU's been instructed to run on higher Octane, which is fine if your a good boy and only fill with decent fuel like SHELL V-Power.

Also ask them if they are doing any other tweaking to maybe CAM profiles, throttle tables etc. etc. to further improve throttle response and mid-range power.

All in all if I were you book them to do your car before the RR, let them know you are getting it on the RR and if you don't see around 250ish you won't be a happy bunny.
 
:cool: I am tempted to just go for it - but I've nothing to lose by being methodical and patient - getting a RR print with the car in standard trim, then having it remapped and getting another print in the Spring to see what I've gained.

Powerstations dyno DIN corrects so the change in atmospheric pressure/ambient temperature between Nov and April will be auto adjusted so it's a level playing field.

I'd be mad to pass up an opportunity to see PMKeates M54 on the dyno and compare his trace to mine before spending any money. I know it's just pocket money but what if his only makes 5 bhp more? Arguing with E-maps would be a waste of time.

The engine needs 98ron anyway, and you know these tuning companies lay it on thick sometimes. Who's to say their dyno comparisons aren't 95ron to 98 ron. That'd explain 10 bhp of the claimed 20 bhp increase.

Too long in the tooth to accept anything on face value. But I'll be well chuffed if PMK's car produces even close to 250bhp because I'll be booking a remap the following Monday morning.

I guess they must be playing with timing. The gains are impressive - and that's the problem - they're actually too impressive. Another thing that's popped into my head is that they may only be making more power due to the increased rev limit. If so - that's a bit naughty. I'd want to see extra power right through the rev range - not just a bit more power unleashed by straining the engine's peak speed.

I think about things too deeply. :o
 
I think you have it right merlin, compare your graph with PMKeates'.

What if the peak power is greater but it messes up the rest of the rev range?

I don't know much about tuning so won't offer any tech. advice in this thread, I would just wait until after the RR to decide.
 
power gains on 6cyl na bmw engines are generally over estimated by remap cos and in some instances some people have lost a few bhp,

i would want a dyno before and immediately after and promise of a refund if gains arent acceptable.
 
Cyrus said:
power gains on 6cyl na bmw engines are generally over estimated by remap cos and in some instances some people have lost a few bhp,
Click to expand...

Do you have a source for this so I can read up?

:)
 
Barry Smalley said:
Why don't you have it done properly instead of running a generic map? It's not that much more money...... :)
Click to expand...

Because a generic map might do a perfectly good job for a third of the cost?

We'll see next week. If PMK's makes good power over mine I'll go for the off the shelf map and be more than happy.
 
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