How To Port Match Your ABF Inlet Manifold

[@jeffkoch8612]

Nice work man

[@RestoDesignsnando]

Thanks mate👍🏼

[@jonassrensen2629]

Hello Sir, ive watched your series on the bon jovi mk3. After watching i went ahead and did the same mods as you on my passat b3. The car is swapped to a afn from a mk3, i did the same turbo, as well as .230 nossles, 11mm pump, decat and egr delete, However, ive run into a problem. My mate cant seem to get his kess to communicate with the ecu. Was the map you had done with the desoldering of the chip? From what ive found on the web only some of these afn seem to be able to be obd remapabld, but finding info seems difficult. If you have and info you can share id greatly appreciate it! Regards Jonas from Denmark 😁

[@RestoDesignsnando]

Hi Jonas, the only AFN that I know that can be mapped from the OBD port are later ones from the Golf mk4 90 & 110hp and Seat 6k2 90 & 110hp, those are not engine code AFN as they use the later blocks with the water pump driven off the timing belt. Yes the chip in the Bon Jovi was soldered in.

[@ВалтерГеоргиев]

Did you mod the air filter box? I think you put different one maybe?

[@RestoDesignsnando]

Yes this car has a Seat Ibiza 6K ABF airbox.

[@ВалтерГеоргиев]

@@RestoDesignsnando Do you think it's the biggest because someone says Seat Toledo Abf have the biggest or are they the same? Have you polished it inside?

[@ianmcmullen8535]

Did you port match the lower inlet on the side that meets the head? On test drive was there any real world difference with the bum dyno?

[@RestoDesignsnando]

I felt a slight improvement at light throttle. 👍🏼

[@davidparker9676]

The combustion chamber is the biggest flow limitation on these engines. The valve angles and shrouding is terrible.

[@RestoDesignsnando]

Yep totally agree, the narrow angle of the valves are terrible with the exhaust valves at 90º to the pistons and the inlet with only a slight angle, the engine being 'under square' also doesn't help the shrouding issue. But I stand by the inlet manifold, as it's first in line air flow wise. Had cars come in trying to hit 200 with cams, head work and pistons and it's almost impossible, I've only ever seen 2 engine hit that(doesn't main there isn't more) with a ABF inlet on. I know the guys from South Africa are doing some crazy stuff with BMW 84mm pistons and TDI cranks.