Has anybody had a 4.2 SC remapped? If so who by and what was the increase in performance mpg etc?

Thinking of getting it done but need info first - MT

I would also want to know that.

I would also, I believe BAS have done it, but, for friends only and with no figures on gains etc. saw that mentioned on another thread here...

Remaps offer insignificant gains on the S/C, if your looking for more oomph (is that a word?) you will be looking at uprated supercharger pulley and probably some sort of straight through exhaust AND a remap.

That's the cheapest option anyway L322 Big Daddy SUPERCHARGED 5.0 Autobiography - Here & Now!

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I disagree with will_wonka, i had mine done and it made a big difference, much better throttle response and power above 3,000 rpm. I had the supercharger pulley done later and didnt think that was as impressive as the remap.

The guy I used was Chris John, hes based in the UK, just happened to be flying through Dubai, so did mine in the airport car park . Here's his original email and contact.

"We CAN flash the engine control unit (ecu) on the SC engine and this will produce approcimately 40-50 bhp extra with an additional 50 lbft torque......throttle response is also improved and the cars we have evaluated in the UK have produced (when driven 'sensibly'-if that's possible) a fuel saving of 6-10%"

I was originally sceptical, but its been over a year now and im still impresed with the performance gains.

Hope this helps  2006 RRS Supercharged
Hawke Saker 22" rims Nitto Tires
Larini exhaust System
ECU remap
Modified and ported supercharger with 3lb pulley

This sounds good. How much and would it be possible, to get this remap to Iceland, or Poland?

Cheers BKHK

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Many thanks for all the advice. Reckon it is worth doing - just the concern of it affecting the warranty.

Definitely will be considering the MY 10 SC but will wait for an ex demo I think - had to promise the long haired general no more brand new cars so may have to wait a little while. Still not too much of a bind driving mine until then!!

"We CAN flash the engine control unit (ecu) on the SC engine and this will produce approcimately 40-50 bhp extra with an additional 50 lbft torque......"

Sorry don't believe this at all. They would have to provide some proof (where are the dyno sheets?), and also that they do not lean the micture too much. With some ECU tuning 20 maybe 30 would be feasible.

Either this friday or early next week, I am going to have a remap in my car. I will have the torque and hp tested before and after the remap. I wonder myself what the outcome will be. My name: Patryk
RRS 4.2 s/c Rimini Red

rrspoland wrote:

Either this friday or early next week, I am going to have a remap in my car. I will have the torque and hp tested before and after the remap. I wonder myself what the outcome will be.

Please add charts and reseults afterwards.  My gallery: http://www.rrsport.co.uk/gallery/thumbnails.php?album=994

That would be great

Don't forget to also get the Air to Fuel ratio on the graph.