Silversweet09 of 8thcivic.com has collaborated with Cobb and Hondata to produce a factual comparison sheet of the two competing tuning solutions. It is still a work in progress but is largely complete as of now. Head over to 8thcivic.com to check it out.
Link: http://www.8thcivic.com/forums/hondata/189173-official-flashpro-accesspo...
Comments
Hey Mucter- How come the
Hey Mucter-
How come the accessport can't address the rev hang issue? That was one of the reasons I bought one. Do we not have access to the tables we need to fix the problem?
It seems there has been a lot
It seems there has been a lot of mis-information about rev-hang. Search 8th for some of my posts. Firstly, if you don't notice if you have it or not, then you don't have a problem and shouldn't worry about it. If you do notice it, the summary is that cobb didn't do anything to specifically fix rev-hang. There is also nothing in the fp MAF tunes to change it. In the MAP tunes, it seems that the issue was removed or reduced as a side effect of the changes made to run in MAP mode. It doesn't seem like there is a specific table available that can fix it. There is a little publiced work around, and that is - turn the ac on. That fixes most of the rev-hang, but it doesn't help with lift off throttle lag, which is where the real problem is.
Whats the theory behind
Whats the theory behind having the a/c on? I'm guessing that its not the load of the compressor as its probably not engaged under wot/ high rpm conditions. Just curious.
rev hang issue fix
if you get pulleys nst it fixes the rev it worked for me
With the a/c on, the load of
With the a/c on, the load of the compressor makes the revs drop faster in between shifts. For me at least, this minimises the "rev hang" experienced when shifting. However, it does not fix the lift off throttle lag - i.e. the time it takes to get full engine braking after lifting off the throttle, which is the part that bugs me the most.
Rev hang and throttle lag
Rev hang and throttle lag both have to do with how the fuel injectors behave. Instead of being "tied" to shut with the throttle as was common in older standard transmission vehicles, they instead stay open after the throttle is released to ensure that the injectors are emptied. Hondata has altered this behavior in (all?) their maps for Flashpro, thus minimizing rev hang.
How can the fuel injectors be
How can the fuel injectors be emptied? There is always going to be fuel pressure wanting to keep them filled up when the car is running?
Fuel injectors are driven by
Fuel injectors are driven by electric drivers, it's either open or not. I think the "emptied" statement is saying that under our normal ecu behavior the injectors are kept open (powered) after the release throttle event takes place. This, as you know, has been done for emissions purposes.