JoelTunin Posted November 14, 2022 Share Posted November 14, 2022 Hey guys, I have already seen the posts made but it hasn’t helped me. I understand the risks of it but I’m after a big flame on decel. already have BIG backfires but just after a continuous flame. it’s a na bf falcon btr4 Still very new to this tried looking for dfco but couldn’t find it. thanks for any help guys Quote Link to comment Share on other sites More sharing options...
Plumbs Posted November 14, 2022 Share Posted November 14, 2022 Hi Mate , don’t know if you’ll get it with non Turbo , as the injectors are just too small ? ( Eg overrun ) Also the cat seems to spoil the party too ? Also depends on exhaust. I know with my f 6 310 ( tuned by Forced performance, aka Jamie the guru) its shoots a 5 foot flame out the back with e85 on decel. It has stock decel 20 deg tune in it . But 1000 cc injectors. Quote Link to comment Share on other sites More sharing options...
JoelTunin Posted November 14, 2022 Author Share Posted November 14, 2022 It barely has a cat because of the previous backfire tune. But you could be right about the injectors. 1 Quote Link to comment Share on other sites More sharing options...
Roland@pcmtec Posted November 14, 2022 Share Posted November 14, 2022 This could could kill your motor (hot carbon spots causing pre ignition or hydrolock at idle if you held it down) but you could put the individual cyl trims in the launch tune and make 2 cylinders go 100% duty cycle. That way the other cylinders should keep the EGT high enough to ignite the fuel. Only pull the launch button at high rpm to ensure it goes out the exhaust. 1 Quote Link to comment Share on other sites More sharing options...
jakka351 Posted November 15, 2022 Share Posted November 15, 2022 Boom Tuna! Quote Link to comment Share on other sites More sharing options...
JoelTunin Posted November 15, 2022 Author Share Posted November 15, 2022 6 hours ago, Roland@pcmtec said: This could could kill your motor (hot carbon spots causing pre ignition or hydrolock at idle if you held it down) but you could put the individual cyl trims in the launch tune and make 2 cylinders go 100% duty cycle. That way the other cylinders should keep the EGT high enough to ignite the fuel. Only pull the launch button at high rpm to ensure it goes out the exhaust. Thanks man I’ll look into it Quote Link to comment Share on other sites More sharing options...
BeerTurbo Posted December 4, 2022 Share Posted December 4, 2022 On 11/14/2022 at 8:31 PM, JoelTunin said: Hey guys, I have already seen the posts made but it hasn’t helped me. I understand the risks of it but I’m after a big flame on decel. already have BIG backfires but just after a continuous flame. it’s a na bf falcon btr4 Still very new to this tried looking for dfco but couldn’t find it. thanks for any help guys until you disable DFCO your going to have trouble. I could get small flames with DFCO disabled, negative decel timing and fuel map verry rich in all cells you were trying to blow a flame in. even then it would only do it when the car was verry hot. after i added water meth injection it would just blow a constant flame. 1 Quote Link to comment Share on other sites More sharing options...
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