Z4M RPM Limiter

[Coisman]

They all do.... Miss Sophie and Miss Marple just went craze on the dyno :idea:

Yea, even my baby lit up like a X-mas tree... :fencelook:
You drive a few 100 meters and all resets by itself though. :thumb:

Rolf, that could influance the output of the cars performance though can it?? Being on the Dyno I mean??

 

[Rolf]

Yes it could ... if you let it happen! Meaning: We can set the emergency maps to std values and nothing will happen :idea:

But it could break your car if there is a real emergency

 

[faheemo]

Let me ask this question ..

Can anyone show me a Z4M that successfully had the RPM limiter raised to above 8k ?

I'm specific to the Z4M as the ECU is different to the 46 M3.

 

[Rolf]

We already did more than one cars at 8500 rpm and one on special request to 8980 rpm :idea:

 

[UberTaner]

8980? That is pretty stuffing high.

Wjhat work has been done on the engine? I imagine the standard internals cant do that rpm too many times before going pop.

And also I imagine the standard internals will probably have a drop off in power at that rpm? Need to change cams, valves, etc?

Stand to be corrected however

 

[Rolf]

Racing engine
Dont think South African here


But your wish is my command if you want 9500rpm limited thats what you will get from us.

We do software .....

Sent from my GT-I9000 using Tapatalk

 

[UberTaner]

Where, in your experience is a sensible limit?

So one which wont overly stress the engine and will also yield good power?
So if you raise the limit to 8,200 does the power increase also or does it start to drop off after 7,900?

Thanks
LC

 

[Rolf]

Max 8000rpm on unmodded engine or vibrations woth throw bearings

Sent from my GT-I9000 using Tapatalk

 

[UberTaner]

Hypothetical:

If you wanted 8,200 rpm what mods would you recommend?

 

[Rolf]

Compression, cams and exhaust

 

[faheemo]

We already did more than one cars at 8500 rpm and one on special request to 8980 rpm :idea:

"We" as in ?
any cars here in SouthAfrica ?

 

[Rolf]

Promotec group of companies under supervision of Sinotech Holdings Ltd has more than one person working .... operations are worldwide

South Africa is just a small playground :idea: