Remaps/tuning - what's the catch?

The mx5 tuning guy I spoke to about a remap said that mazda wouldn't even know, because they only use diagnostic tools not tuning tools.
And you don't think the diagnostic tools can read the values stored by the various sensors ans ECUs that show the car running outside of spec?
 
Remap = overclocking for petroheads.............with the same or similar upsides and downsides. :p
 
The mx5 tuning guy I spoke to about a remap said that mazda wouldn't even know, because they only use diagnostic tools not tuning tools.

Pretty sure every tuning person will say something along those lines to try and sway people who may be put off from getting a remap because of warranties etc. it's not their problem if the manufacturers find the remap during a check.
 
Pretty sure every tuning person will say something along those lines to try and sway people who may be put off from getting a remap because of warranties etc. it's not their problem if the manufacturers find the remap during a check.

For some of them, perhaps. Other tuning companies do actually place a warranty on the parts that are no longer covered by the manufacturers warranty post remap. At least that used to be the case.
 
They can definitely tell if they look with diagnostic equipment. Things just won't match standard.

It's like all the people clocking the mileage on their BWMs, not realising that there is a separate internal counter which has probably not been touched. Which obviously opens them up to being found out and sued later down the line.
 
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I've had mine at stock since 2013 and just don't see the point. It's epically fast out the box and I find all this tuning malarky just becomes a willy waving contest when the car is already very fast out the factory.

As far as I'm aware no one has cracked the encryption on the M140i yet so they are all stock.
 
I've had mine at stock since 2013 and just don't see the point. It's epically fast out the box and I find all this tuning malarky just becomes a willy waving contest when the car is already very fast out the factory.

As far as I'm aware no one has cracked the encryption on the M140i yet so they are all stock.

Erm. No, they are not all stock. You can still get the likes of the JB4 for the M140i. 410 BHP with map 1. 440 BHP with map 2, but needs a fuel system upgrade.

http://www.babybmw.net/forum/viewtopic.php?t=94621

Whilst yes, the car is fast out the box. This is a relatively cheap way of releasing even more power. 400+ BHP in a 1 series is impressive numbers.
 
Erm. No, they are not all stock. You can still get the likes of the JB4 for the M140i. 410 BHP with map 1. 440 BHP with map 2, but needs a fuel system upgrade.

http://www.babybmw.net/forum/viewtopic.php?t=94621

Whilst yes, the car is fast out the box. This is a relatively cheap way of releasing even more power. 400+ BHP in a 1 series is impressive numbers.

Stand corrected, I thought I read recently the encryption still hadn't been hacked.

Impressive numbers but going to put strain on the components. Anyone who thinks there's no risk involved is living in a dream world.
 
Of course there is risk involved. There is risk involved with everything though, crossing the road, or adjusting your balls, as happened on here the other day. And sure, it may put a bit of extra strain on some of the components, but realistically, its only 50 BHP or so on the engine. Not a HUGE amount more. I'm quite sure the tolerance is already built in, for the most part, simply from regional climate variations and the likes, at least for heat issues in this country.
 
Of course there is risk involved. There is risk involved with everything though, crossing the road, or adjusting your balls, as happened on here the other day. And sure, it may put a bit of extra strain on some of the components, but realistically, its only 50 BHP or so on the engine. Not a HUGE amount more. I'm quite sure the tolerance is already built in, for the most part, simply from regional climate variations and the likes, at least for heat issues in this country.

"only 50bhp or so" is about 20%. That's a fairly significant chunk.
 
"only 50bhp or so" is about 20%. That's a fairly significant chunk.

Not really when mapping turbo motors. Back in the day, my 1.8T mapped would go from 150-200 BHP, that was a full 33%, rather than the 17% on offer here (assuming 60 BHP increase on 340 BHP standard).

In fact, many turbocharged petrol motors get 50 BHP increases on stage one, from significantly lower starting points. Mk5 GTI for example, 200 BHP to 250 BHP (25%). Edition 30 goes 230-300 BHP (30%), Old S3's and the like go from 225 to 270 or there abouts (20%). Focus ST, 225 - 275 (22%), Megane RS250, 250 - ~300 (20%). You can look at diesels too. The 320d 177 gains 44 bhp (25%) with the bluefin stage 1. Megane 1.6 DCi, 128 BHP to 160 (24%). Audi 177 goes from adds 45 BHP (25%).

There are very few stage one maps that realistically give less of a percentage. Most 2.0L + turbocharged engines can stage one around the +50 BHP mark, so a 3.0 turbo doing it isn't exactly pushing it.
 
And you don't think the diagnostic tools can read the values stored by the various sensors ans ECUs that show the car running outside of spec?

No I don't think that because I've no idea how it all works :)

The Ecutek racerom remap for my mx5 (if I do it) offers different maps, changed via the cruise switch. So if I have 1 remap with all the bells and whistles and then another standard factory map that I revert to when taking it into mazda, would they know?
 
Most cars won't get 50hp from just a remap. They might ask for that, but it won't actually run at that. If you dynoed it, it would probably be way short and get shorter as the engine got hot. It's like overclocking a CPU but not upgrading the cooler, fine until you put it under lots of stress.

Unless it's way over-engineered (e.g like a Supra or Skyline which can get huge power gains from the stock engine), but few modern cars are.
 
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No I don't think that because I've no idea how it all works :)

The Ecutek racerom remap for my mx5 (if I do it) offers different maps, changed via the cruise switch. So if I have 1 remap with all the bells and whistles and then another standard factory map that I revert to when taking it into mazda, would they know?
Yes, if they wanted to know, they'd know.

If you went in for warranty work they'd likely check for a remap, in case it could have caused the fault.

If you went in for a simple service, then it's not likely that they'd be checking, but it's still possible, if for instance a software update was being deployed.
 
I've had mine at stock since 2013 and just don't see the point. It's epically fast out the box and I find all this tuning malarky just becomes a willy waving contest when the car is already very fast out the factory.

As far as I'm aware no one has cracked the encryption on the M140i yet so they are all stock.

They are pretty mild out of the box tbh, a simple map seriously wakes them up, kind of criminal to roll around stock with so much unlocked potential.
 
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