What all is needed with VAFC-II?
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From: Canada
Originally Posted by SPLNDID,Jan 16 2006, 05:21 PM
...
Can you tell me if the VAFC can be tuned easily... as in dynamic at the track, or is it setup once by a professional on the dyno?
Can you tell me if the VAFC can be tuned easily... as in dynamic at the track, or is it setup once by a professional on the dyno?
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Originally Posted by kelvin96gsr,Jan 22 2006, 03:27 AM
i only read the first 2 pages but this thread is destined for greatness 
This started out as a simple enquiry into "how" to connect up a VAFC. It quickly got HIJACKED and became a whole debate (nope, let's call it what it really is - an argument) over the pros and cons of a VAFC. I don't recall that question being asked in the original post at all. In fact, the answer was given within a couple of replies.
Destined for greatness? Naw, this thing took a dive into the crapper right from the get go and is destined for mediocrity. Perhaps in the land of little childrens' sand box "I've got a Tonka dump truck. What do I need to put sand into it?" type of drama, this thread is "great".
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I'm bringing this thread back to let everyone know that I'll be tuning my VAFC 2 on the 12 of Jan.... I will post my results after the first tune..I'm also planning on taking it back to dyno again 2-3 weeks later to see if the ECU actually "re-learns" the base maps...Hopefully this will put to rest all the speculations and rumors associated with this particular topic...By bringing this topic back to life, I really don't want anyone arguing over if it works or not...Let's just wait on my results... 
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From: Raleigh, NC
I'm also planning on taking it back to dyno again 2-3 weeks later to see if the ECU actually "re-learns" the base maps...Hopefully this will put to rest all the speculations and rumors associated with this particular topic...By bringing this topic back to life, I really don't want anyone arguing over if it works or not...Let's just wait on my results...
FACT: changes to WOT fueling while in open loop operation with no o2 feedback will stay the same, they will not be "tuned out" by the ECU
FACT: changes to part throttle tuning while the ECU is in closed loop operation using o2 feedback will be cancelled out by the ECU as it adjusts fuel trims.
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From: Manchvegas, NH
False
FACT : Long term fuel trim is effected by short term fuel trim . WOT looks at the long term fuel trim . So yes it can be effected .
this how the ecu knows how to change WOT settings for elevation , temp.... etc.
FACT : Long term fuel trim is effected by short term fuel trim . WOT looks at the long term fuel trim . So yes it can be effected .
this how the ecu knows how to change WOT settings for elevation , temp.... etc.
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From: Raleigh, NC
this how the ecu knows how to change WOT settings for elevation , temp.... etc.