How so. By all accounts it's well within limits.
Remap options
- Thread starter ben12321
- Start date
How so. By all accounts it's well within limits.
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
Surely if its well within its limits, it would have been higher from the factory?
No because they allow a large margin of "safety" due to selling worldwide and being run on different grades of fuel, extra "safety" due to needing an engine to last a reasonable amount of time even for people who don't bother service in accordance with the schedule, and in some cases engines are just detuned to meet tax bands or to "fit" better within a model range.
Soldato
- Joined
- 30 Nov 2011
- Posts
- 11,522
Turbo cars are famous for easily being able to add a big chunk of power - dont forget that most cars have to be designed to operate basically anywhere and boost is very temperature dependant. What you can safely run in a country that hardly ever gets over 30C compared with a country that hits 40C is a really big difference with forced induction.
Take the Abarth 500, 595 Turismo/Comp. from two years ago - 500 came with 135HP, Turismo/Comp with 160, the only difference engine-wise was the map
All cars will flag a TD1 on the ECU if they have had a remap, there is no way to hide it. Tuning boxes do not change the ECU neither do the cheaper piggy back chips but the piggy back chips usually just boost the common rail fuel pressure.
Maybe on a 40hp engine but most maps give around 40% gain in power.
Maybe on a 40hp engine but most maps give around 40% gain in power.
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
Awesome so my car with 420 will get 580 from a simple map, I can't honestly understand why engines go bang
.
Soldato
- Joined
- 30 Nov 2011
- Posts
- 11,522
Awesome so my car with 420 will get 580 from a simple map, I can't honestly understand why engines go bang
Depends, is it turbocharged?
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
Yes (twin) but I can guarantee you there's no way it will get that much without other parts being changed. I think 40% is very optimistic and most will be closer to 20% unless and engine is heavily detuned.
Not really. Big HP number jumps can be had quite easily. As said below.
Exactly. I took my 1.8T from 150 BHP to 240 BHP (although I did do other engine mods). I once took a 2.0 TDI 140 to 180 BHP with just a map. My 335d went from 284 BHP to 340 BHP with just a map. Granted my Alhambra (140 BHP) I only took to 165 BHP as I was looking for economy rather than power. My Edition 30 can easily go to from 230 BHP to 300 BHP with just a remap. But I'm currently "saving" for the clutch that will inevitably need to go with that (really I'm just waiting on me getting bored with the 240 BHP it has already before going down the route of more powers). All the figures I have given from my cars, post remap, have been confirmed on a dyno. Although I acknowledge the Dyno lottery.
Turbocharged cars can get a lot of extra horsepower from a remap in general. Obviously if you are starting from 400+ BHP in the first place, you are unlikely to see 40% gains from just a remap. But a car with 100 BHP being remapped to 140 BHP isn't exactly a rarity. I mean, I got an extra 56 BHP in my 335d, and the reason it wasn't closer to 70 BHP is because I wanted better fuel economy than I would get with the full power map.
I mean, just have a look at what the JB4 does to the twin turbo beemers... http://www.burgertuning.com/jb4_pnp_BMW_performance_tuner.html
And that is "just a box".
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
Interesting that no m cars are listed. I wonder if that means the higher up the range cars have less to give due to already being in a higher state of tune, possibly as somebody said that lower models are reduced in power output to fit in the range.
No M cars listed because I've never had one. And I only listed what I have owned, and have experience with. I've never had one, because I usually prefer boost, due to the better tuning gains after remapping. That, and I've not really wanted an M car ever.
But what you are saying is kind of partially true, if you are talking exclusively in terms of % gains. But if you are talking just numbers, a different story is told.
If you look at Superchips as an example of probable performance gains.
A 2.0T A6:
So that is showing a 60 BHP and 74 nm increase from a simple remap.
Now if you go all the way up the range to the RS6:
You can see gains of 106 BHP and 153 nm.
But lets look at a NA M3:
So here you see only a 26 BHP and 29 nm increase. It's not because the M3 is in a higher state of tune than the RS6. It's because with turbocharged motors, the boost pressure is set low for the geographical reasons mentioned previously, amongst other factors. But that means we have the ability to up this boost pressure, and extract much more horsepower, without overly destroying the lifespan of standard components. With that said, some components may well deteriorate faster than others. I usually account for a clutch / flywheel change whenever I remap a motor. But I generally remap motors that are already on 60k+ miles anyway, and so may be already deteriorated significantly anyway. With my A3 2.0 TDI, I replaced the clutch and DMF with standard spec stuff, and done another 50k+ with that, post remap, before moving the car on. So it wasn't that the original equipment wasn't up to the task, but that in the condition it was in when I remapped the motors, it couldn't cope.
Not sure where you are getting your figures from, but in over 12 years of being on local car forums, where many many owners remap their cars, I can't remember many instances at all, if any, of anyone blowing a turbo because of a remap.
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
My comment was aimed at the jb4 link not showing m cars, all of which are now turbocharged unless I'm mistaken. As a side note I didn't realise the rs6 was now a 4l v8 (I wonder if it's the same engine as what Mercedes are using).
Ah, ok. Here is the one for the M3/M4 then : http://www.burgertuning.com/stage_1_bmw_performance_tuners.html or this one: http://www.burgertuning.com/M3_M4_S55_JB4_BMW_performance_tuner.html
Can't imagine Audi and Mercedes using the same engine though.
Soldato
- Joined
- 27 Mar 2013
- Posts
- 9,439
I can't either, it's just the c63s use a 4l v8 now. I do find that site funny tho as California have such strict emission laws, the get out clause is race track only lol.