nipetronic

I got to know a local company here who claims to be subsidiary of OBD Tuning Germany.
can someone help to advise if they had used such re-map software?
is OBD proven good ,that it can increase that much hp gain?

CCS

That seems a bit suspicious...

nipetronic

well, he further replied to my queries that it had been done on turbo charge BMW cars and Porches
N.A. engine blocks may not be able to achieve so high

cleung

theres no way that a OBD tune can get an extra 100bhp out of the NA engines, I'd be hard pressed to think that it can even add 20bhp. Is it like a seperate unit that you buy to plug into the OBD reader to tune, and is reuseable if dealer flashes your ecu? I've been waiting for shark injector to come out with there unit for the e60 but so far nothing yet.

nipetronic

thanks for yr reply, Cleung
the shop replied to me that 100bhp possible for turbo units, for NA engines, max is 17bhp 20Nm for US$600 ECU remapping.

i will chk on "shark injector" (never heard of here yet)

Hilden

100hp sounds like bogus for remap only at least on our type of engines, even if it's a turbo. Maybe it's possible on a racing engine with turbo(s). But if they insist on it they should have dyno evidence to back it up. I've been in contact with a few reputable tuning companies and they will guarantee 40-60 bhp with remap only and if I want more I will need to get a new exhaust and then some. Could of course be a way for them to sell more super expensive exhaust etc but I don't think all of them are like that.

I've seen quite a few 530 diesels on various sites claiming to have 300+ hp with remap only and in general it's done by some less known tuner, which makes me even more sceptical. Of course it looks and sounds cool to say you have that kind of power so if people prefer to pay for paper figures they are of course free to do so.

Now I don't claim to speak the whole truth and nothin but the truth in this matter so if someone prove me wrong and have evidence for the hp increase I'd be very interested to see it, and know where I can get that remap

terente0081

It's very rare to get that kind of power from a simple remap... It is possible, but not safe. I've seen reputable tuners like SKN and Hamann that offer ECU remaps for Diesel engines and all they can offer is about 40-70hp. Of course, they do extensive testing on those remaps to make sure the transmission and other components can hold that hp without breaking. I believe higher numbers can be achieved if you stop thinking about the transmission or if you upgrade that as well.

I have a local tuner here that has a dyno. He said he can dyno my car (535d) and then push up to 340-360rwhp on the dyno with it. But he does not guarantee that the engine will last a month on that tune. He also said that there is a 535d he tuned at 320rwhp with just software remap, it's been tuned for about 6 months now and it's still going strong. All 535d's are Automatic, so I guess with the transmission loss, that 320rwhp 535d has about 370hp at the crank if not more.

Safely remaping the diesel engine will take some life out of it as the turbine(s) as well, they will not last you as much. Going up on the hp scale, you will force the turbine(s) even further, extra wear on the piston head, extra wear on the valves. You will have a powerfull diesel engine, but it will not last for hundreds of thousands of miles, but rather tens of thousands.

Repairing the diesel engine afterwards is very expensive and complicated as it has so many parts that can break.

theXman

Getting 100bhp more by ECU remap? I don't believe that.

terente0081

It is 100% doable on a turbo engine, just not safe.

cleung

That makes sense now but like some others have said even for the TT engines 100bhp seems a little high but I don't think its not acheivable because I think the juice box 3 is close to that. Shark injector doesn't have anything out yet for e60, lots of e46 guys have it to tune there cars for intake and exhaust, that 17bhp is likely a number acheivable only in combination with intake and exhaust. There are a few vendors on this forum that also do remapping the trouble with remapping is any time the dealer does any updates to your ecu you will have to get it remapped again.