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ECU Tuning & Remapping for Subaru Impreza / Forester

Fully mobile Subaru Impreza and Forester ecu tuning & remapping. Based in Cambridgshire but able to travel to wherever within the UK to remap either single cars or groups of cars within a day (where 3+ cars are mapped there will be no mileage charged).

Typically the imprezas that are remapped will have had some modifications such as decat exhausts & air filters (or a lot of modifications in some cases) but this isn’t essential as the std car can be mapped for greater power, safety and economy without the need to spend large sums of money making it happen.

5th in Class at Knockhill – Round 2 2010

Last modified on 2010-05-18 07:32:36 GMT. 0 comments. Top.
Now back from scotland and round 2 of Time Attack 2010….

All in all it was a great weekened. Steve, Soos and Julian arrived at mine on saturday morning ready for the long drive up there during the day on saturday – i didnt want to do the track day the day before as if something breaks there would be no chance of fixing it so a leisurely drive and arrive at the hotel for a chilled evening was in order.

Sunday first thing we headed to the track to unload and get a spot in the paddock in time for the day’s fun. With surprisingly little to do on the car itself we found our selves kicking tyres and checking things 3 or 4 times to pass the time between the arrival and first session.

It had been raining overnight so the track was sure to be slippery first thing.

First session and headed out on track first and almost span into duffus dip – hmm yes it was slippery. I let most go past while i tried to scrub the tyres in a little and get some heat into them. Unfortunately I had a slight misfire in this session but as it only lkasted 3 laps til an evo dumped a load of oil on the entry to the first corner and it was stopped it wasnt a huge issue.

A quick tweak to the map and out for session 2. Damn still had the misfire but as I had a chunk of vpower in the car still that i needed to burn off for this 30 min session i kept going round to get rid of it and to heat cycle the tyres. They got up to temperature properly this session and although I could not use more than half throttle without misfire I was still enjoying myself and made a trip or two into the gravel. Firstly to avoid the what seemed like a mile wide pulsar that was parked on the apex of scotsman going 2mph – the gravel trap was my only option. Then totally outbraking myself and into the gravel at the hairpin

Times for these two sessions didnt mean a lot to me but seeing what others were doing I knew I needed to be a lot quicker. With E85 going in for the final two sessions and the misfire to cure it should be possible. Prime candidate for the misfire was the crank sensor – which i duly changed.

Some small tweaks to the map and switched over to E85 I went out for qualifying in the hope that it had solved it – it had and full pace had to be learned and new braking points learned to go with them. I got them wrong a couple of times and although not quite fully in the gravel, I was out of shape on a few occasions as the picture above shows. Car was feeling great now and some good tussles in qualifying with the other club pro guys and finished up 5th in class and one point in the bag. This was largely flattering as Andy Harvey hadnt put in a proper time and I was still 1 second off where I wanted to be and what my target time was.

Now for the final. A few minor tweaks to the suspension set up and off out.

It was feeling good but the engine was blowing quite bit out of the breather system – the engine sounding not quite right now but still pulling pretty well. Only running 1.9 bar and down a little on power as a result it was enough to make my way quite quickly around the track… and a little too quickly at times:

I came in at the end of the session having hit my target time of 55 seconds with a 55.8 and that put me 5th which I was very happy with. I had closed the gap on the others in the class a lot and was only half a second behind Paul Doyle in the old zen car. Subsequently looking at the sector times I was quicker than him on sectors 1 and 2 but lost nearly a second on the hairpin due to wheelspin from the inner rear. Not something I could really do much about but a mechanical upgrade to a proper rear diff needed.

At the end of the session I came in and the engine had been breathing very heavily and was also suffering from a rocker cover gasket that appeared to have been sucked in and was pushing oil out that side too. Not good. Compression also sounds iffy with a very suspect starting sound – logs show quite a bit of noise on 2 and 4 cylinders so I am guessing some issue with pistons or rings there.

I had been planning to pull the engine shortly to refresh – seems it has to be done now. What is it with knockhill and engines for me?

Anyway, had a great time and pleased with the result and my time (2.4 seconds quicker than last year), there is possibly a little more in there but no way in the current set up that I could have bettered my position.

Thanks to Steve (eureka) and Soos and Julian for their hard work and support over the weekend – top work guys and thank you.

Thanks also to my sponsors/supporters/helpers and anyone interested in reading these updates.

RaceDynamix – 2009 Time Attack Club AWD Champions