Hi Guys,

After comparison with DPChip and DMS/Powerchip over the weekend , I have decided that maybe the DPchip is the more conservative approach. Thinking back to the original purchase price for my X of over Au$100,000, I think it is better to play it safe just to try what chipping will really do to the transmission. I had some doubts that the current transmission is capable of handling the existing torque that the engine produces now, even without chipping. I can feel the trany slipping a bit during hard acceleration when riding the turbo therefore having the luxury of been able to play around the power setting and also been able to remove DPchip out easily if tranny does dies seems more convenient when I go back to BMW. Another thing is that DMS/Powerchip is based in Uk therefore I don't think that they have the extensive local knowledge of Aussie driving condition and fuel quality like DPChip. See link below.

http://www.xoutpost.com/x5-e53-forum/...ghlight=dpchip

I have order the chip from TJM 4X4 Megastore in Slacks Creek and should get here by Wednesday. I will let you guys know when I get it fitted. Can't wait . It cost $1390 to get it up Brissy and fitted.

Say, does any one have any problems with transmission slipping. The sales rep that I brought the X5 off told me to ride the turbo when accelerating to get the fastest times but I think I must have ride it too much. When the torque kicks in at 2,000 rev, I fed more fuel in to the engine at the extent that the transmission would not upshifing to higher gears. By doing so, it builds the pressure up in the engine therefore delivering more grunt and acceleratation. I push the engine through to 3,750rpm and lets it off to allow the tranny to change down a gear and push the engine again once the gear catches on in next gear. I try not to get it over 4,000rpm because torque is weak at high rpm and it only the KWs doing the hard work at that rev which is only 150Kw. I would be just wasting fuel over 4,000 rev plus diesel engine does not like high revs anyway. Maybe that is not such a good idea thou but it is very fast . I can almost keep up to the new V8 750 from 0-100km doing that . Let us know if anyone also feels the transmission slipping during hard acceleration or is it just me and my bad driving habits? I am a bit concern coz I am about to add more power to the car.

Cheers Guys