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Hi Wilson

I used to run my MK1 Elise 135Sport on 99 octain form Tesco's + Millers CVL and Toluline with pressure regulator set at 4 bar.

It was dynod at 138bhp at the rear wheels and would out drag most things up to 80.

hi wilson

pm sent , i did find the file

Many thanks. Have sent them a query.

I assume you've considered yet discounted the Garage-56 Stage 1 Kit? This is a full and proper 'fix' for the overheated pipework and pinking, for all the well known reasons;

Garage-56

I think the Garage 56 kit really needs access to a dyno to set up the ECU. I just don't have access to this. I had the same problem when I fitted the Yoshimura cam/intake/ECU/exhaust kit to my Yamaha Raptor 700R sports quad bike. In the end I had to send the ECU back to Japan to have it pre-progammed. The ECU from Krazy Horse comes pre-programmed. I am waiting for Stuart at KrazyHorse to get back to me with pricing and delivery details. The Millers CVL additive seems to work surprisingly well for the time being.

I have the G56 Stage 1 kit on my car and a standard ECU. I was told by the G56 people that their Stage 1 kit was designed to run within the programme of the standard ECU and it seems to do this very well. It doesn't make your ears bleed like the KH one I heard did, if that is a consideration.

Is your M3W an early, mid or late Mk1 or Mk2? Mine is an early Mk.1 (April 2012) so still has the earliest version of the software in the ECU. I believe this over advances the ignition over 4000 RPM so that a change in pipes is only a partial cure. Reading the G56 blurb I think their ECU has to be programmed on a rolling road. Maybe the ideal cure would be G56 pipes and a KrazyHorse ECU.

This springs to mind!

Sorry Wilson, please disregard my answer to your ECU question on another thread, as I hadn't read this one.

I am very reliably led to believe that the stock map in the stock ECU is actually quite well setup for an S&S motor which is allowed to breathe properly. The exhausts on these M3Ws have been progressively bunged up (the early cars were noisier and the prototypes that the mags reviewed way back, faster and noiser still). It is for this reason that the simple addition of a G56 Stage-1 kit does NOT impact the running of the car other than to improve things 100%. The stock ECU map can then work as expected, there is no pinking on large throttles above 4000rpm and the whole driving experience is MUCH improved.

However, as with all perfectionists and their requirements, the recommendation is perhaps further tune the setup to ones specific vehicle by use of a rolling road. This however is for the fine-tuning only, not the fundamentals. In fact pretty much any car will benefit from a 'remap', if only to maximise the setup on that particular car, irrespective of whether the owner if after more power or not. It'll just be better after a 'personal' tune.

I'd not hesitate to just put a G56 kit (other similarly free-flowing alternatives are probably available...!) on your car and let your stock ECU do the job for which it was designed. If I was nearer I'd come by and let you drive mine, so you could see for yourself.....

My car is May 2013 but with most of the post 2014 upgrades, including the urban cooling kit and its associated ECU remap. Even if you don't drive in urban conditions the cooling fan kit and its remap are certainly worth the money. It helps to stabilise the engine temperature and keep the peaks down, heat kills air cooled engines, as I am sure you are aware. Anything that prevents excessive temperatures will help the life of the engine. The remap that comes with the cooling kit is an improvement over the original that you probably have with a 2012 car. The G56 Stage 1 kit doesn't require any rolling road remaps for the ECU, it is designed to work with the standard map and does.

The pinking over 4000 rpm is almost certainly a result of using the very restrictive standard exhaust system rather than the ECU map,as R1NGA says. The easy thing to do is get the cooling kit with its ECU remap plus a better exhaust and air filter. Its tried, tested and works.