Pop n Bang on aspirated engine

This section is dedicated to discussion of DTA engine control units such as the DTA E48 EXP, P8 Pro, DTA S40, S60, S80, and S100, as well as all things ECU related.
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McRae
Posts: 14
Joined: Sun Apr 13, 2014 3:07 pm
ECU Model: S40 Pro
Firmware Version: V59
Location: France

Pop n Bang on aspirated engine

Post by McRae »

Hi everyone

Do you think that it is possible to do the same 'funny pop" whith an S40 écu....or maybe with the futur software :D

rover200turbo
Posts: 22
Joined: Tue Sep 06, 2011 7:13 am
ECU Model: S60 Pro
Firmware Version: 78

Re: Pop n Bang on aspirated engine

Post by rover200turbo »

Just set the timing to -10 degrees on overrun and keep fuel turned on


Makes no difference if its nasp or turbo


John
McRae
Posts: 14
Joined: Sun Apr 13, 2014 3:07 pm
ECU Model: S40 Pro
Firmware Version: V59
Location: France

Re: Pop n Bang on aspirated engine

Post by McRae »

Thank's , i'll try it next WE
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Pop n Bang on aspirated engine

Post by Rob Stevens »

you can only do negative ignition on MAP2, which you don't get on an S40. You could fudge the crank pick up point to fool the ecu, but why bother. Try a few 0's in the first ignition column and it might pop a bit.
rover200turbo
Posts: 22
Joined: Tue Sep 06, 2011 7:13 am
ECU Model: S60 Pro
Firmware Version: 78

Re: Pop n Bang on aspirated engine

Post by rover200turbo »

You can put negative timing in the main ignition map of s60 as thats what i run in the low kpa loads just above idle


John
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Pop n Bang on aspirated engine

Post by Rob Stevens »

Ok, yes but not unless you have map sensor, you can't do it on the main tps vs rpm
Rob Stevens
Posts: 1247
Joined: Thu Jul 28, 2011 4:10 am
ECU Model: S100 Pro
Distributor: None-Coil On Plug :)

Re: Pop n Bang on aspirated engine

Post by Rob Stevens »

I'm wrong, (again) just tried it and you can go to -10 in the main tps vs rpm map. That has been changed sometime.
McRae
Posts: 14
Joined: Sun Apr 13, 2014 3:07 pm
ECU Model: S40 Pro
Firmware Version: V59
Location: France

Re: Pop n Bang on aspirated engine

Post by McRae »

Yesterday , I tried with -10Deg but nothing and -10 is the max value so .....
May be it needs more fuel :?
rover200turbo
Posts: 22
Joined: Tue Sep 06, 2011 7:13 am
ECU Model: S60 Pro
Firmware Version: 78

Re: Pop n Bang on aspirated engine

Post by rover200turbo »

No to pop and bang it needs to be lean
The flame front is slower mine pops iro afr 16.5 to 17.0
Even at 0 deg timing mine will pop it does your head in sometimes so my fuel has been turned off on overrun

To test this you can just lightly touch the throttle on overrun which will re introduce the fuel
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