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 Post subject: Pop n Bang on aspirated engine
PostPosted: Sun Mar 04, 2018 5:04 am 
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Joined: Sun Apr 13, 2014 3:07 pm
Posts: 14
Location: France
ECU Model: S40 Pro
Firmware Version: V59
Hi everyone

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

https://www.facebook.com/81901003155231 ... 601857987/


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Sun Mar 04, 2018 9:19 am 
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Joined: Tue Sep 06, 2011 7:13 am
Posts: 22
ECU Model: S60 Pro
Firmware Version: 78
Just set the timing to -10 degrees on overrun and keep fuel turned on


Makes no difference if its nasp or turbo


John


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Mon Mar 05, 2018 6:38 am 
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Joined: Sun Apr 13, 2014 3:07 pm
Posts: 14
Location: France
ECU Model: S40 Pro
Firmware Version: V59
Thank's , i'll try it next WE


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Mon Mar 05, 2018 10:16 am 
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Joined: Thu Jul 28, 2011 4:10 am
Posts: 838
ECU Model: S100 Pro
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.


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Mon Mar 05, 2018 5:03 pm 
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Joined: Tue Sep 06, 2011 7:13 am
Posts: 22
ECU Model: S60 Pro
Firmware Version: 78
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


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Tue Mar 06, 2018 2:35 am 
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Joined: Thu Jul 28, 2011 4:10 am
Posts: 838
ECU Model: S100 Pro
Ok, yes but not unless you have map sensor, you can't do it on the main tps vs rpm


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Tue Mar 06, 2018 12:52 pm 
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Joined: Thu Jul 28, 2011 4:10 am
Posts: 838
ECU Model: S100 Pro
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.


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Sun Mar 11, 2018 7:15 am 
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Joined: Sun Apr 13, 2014 3:07 pm
Posts: 14
Location: France
ECU Model: S40 Pro
Firmware Version: V59
Yesterday , I tried with -10Deg but nothing and -10 is the max value so .....
May be it needs more fuel :?


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 Post subject: Re: Pop n Bang on aspirated engine
PostPosted: Sun Mar 11, 2018 4:58 pm 
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Joined: Tue Sep 06, 2011 7:13 am
Posts: 22
ECU Model: S60 Pro
Firmware Version: 78
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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