TTE500 Hybrids with Custom tune

[AR11TAY]

Hi Everyone,

I have a BMW 1M Coupe for almost a decade now. Love it and tuned the car for a bit. The mods are:

TTE500 hybrids with Custom map by AReeves to 440 bhp
Evolve dp, RB inlets
Forge intercooler
Forge dump valves
ER charge pipe
Ohlins coilovers
AP5000R BBK
Eisenman exhaust

The tune is rather conservative and I am looking for a more aggressive map, expecially low end. If I go with a MHD e-tune. Do I lose the custom map?

 

[carabuser]

If you get a new tune, it will completely overwrite the existing tune. So any custom or OTS map you apply with MHD will remove any trace of the custom map you currently have. That's not really a downside though, you wouldn't want to keep any existing changes.

440 is conservative from those turbos, most will be getting 480 from those with pump fuel. Those turbos aren't the best for spool though so don't expect as much shove below 4000 as the stock turbos. Also consider what you are doing with the car, if being used for track driving it's better to keep things conservative.

If you post up the logs then we can take a look at the overall health of the tune.

 

[pbondar]

Couple of us have these babies on our 35is E89s..

I had one fail after about 10k miles for unspecified reasons…having said that very happy with my tunes ..coincidentally by carabuser…

I haven’t tried any other hybrids so can’t comment on spool..carabuser has seen many hybrids..

But it’s more than adequate ..sitting between 525 and 545 crank as measured on a dyno I’ve used a lot..stock figure was 343 on the same dyno ..best mhd v10 was 400 BHP..

For driving on Scottish roads more than enough go and enough spool for me…

 

[AR11TAY]

If you get a new tune, it will completely overwrite the existing tune. So any custom or OTS map you apply with MHD will remove any trace of the custom map you currently have. That's not really a downside though, you wouldn't want to keep any existing changes.

440 is conservative from those turbos, most will be getting 480 from those with pump fuel. Those turbos aren't the best for spool though so don't expect as much shove below 4000 as the stock turbos. Also consider what you are doing with the car, if being used for track driving it's better to keep things conservative.

If you post up the logs then we can take a look at the overall health of the tune.

Thanks Carabuser. Will try to get some logs and post here.

 

[AR11TAY]

Couple of us have these babies on our 35is E89s..

I had one fail after about 10k miles for unspecified reasons…having said that very happy with my tunes ..coincidentally by carabuser…

I haven’t tried any other hybrids so can’t comment on spool..carabuser has seen many hybrids..

But it’s more than adequate ..sitting between 525 and 545 crank as measured on a dyno I’ve used a lot..stock figure was 343 on the same dyno ..best mhd v10 was 400 BHP..

For driving on Scottish roads more than enough go and enough spool for me…

Did you get a custom dyno tune or was it done remotely??

 

[pbondar]

Did you get a custom dyno tune or was it done remotely??

carabuser did the tunes remotely..we datalog them he sent updated tunes..then I went to my tame dyno guys just to run the car on the dyno and play with various airbox / filter / DCIs to see what gives..