My 6 had already been superchiped when I bought it. I drove it hard on Scotland’s superb roads for almost a year before melting a piston… I decided to have the engine re-built and I asked about upping the power a bit…

It’s now been rebuilt: block face and head skimmed, re-bored, crank balanced, new oil pump and oil cooler, stronger lead/copper bearings, steel rods, Wossner high compression pistons.

I’m about to fire the engine back in this week, but I need a bit of advice on ECU’s and mapping. Now that I’m running higher compression will I be OK to run with my ECU the way it is, or will I experience problems? Should I be looking at a remap, and does that mean buying a mapable ECU, or will I be able to have my ecu re-mapped?

If it’s not going to do any harm, I’d like to get it running with my own ecu with the superchip, but I need to know if this is a bad idea. Ideally I could do without spending any more money just now, but I’d like to hear from some of you guys on here about the best way forward. I obviously want to get the best out of the engine, but with the emphasis being on a safe set up that’s going to last. I’d love a set of throttle bodies in the not too distant future, but for now I just need to get it reliable and enjoy what I hope will be a noticeable difference with the higher compression...

Cheers!

Waynes the man!!

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In my garage just now

2003 BMW M3 & 2009 L200 Raging Bull
& Audi Q5 S Line
AX stock rod & Saxo Stock rod
Sold the bike an charged rallye an bought a caravan, midlife crisis or what!

Nice One Lads, The rebuild was done by AGRA in Dundee; the head had been skimmed previously, so with them doing it again and the block face too, they had to machine the pistons a bit. I'm not sure if this was for clearance or to bring the compression down a bit to make it safe. I'll ask the question today.

Hopefully I'll be able to run it with the ecu the way it is, then I think you're right, once I get some cash together, a set of mild cams next... I'll update when they get back to me today... Cheers!