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Tap in throttle and boost transition
Posted: Mon Jul 04, 2011 3:46 am
by body80
Anyone have any tips for tap in throttle and boost transition.
US 240sx ka24de-t
Type 3 board
T3
850cc
Z32
hitting WOT and as I'm building boost fuel seems to be late to the party.
I'm at 6-7+psi and running 13.8 afr when in the fuel cell it's 11.0.
Finally it rockets down and measures about the same as the fuel map. It's just really late.
Any tips?
Re: Tap in throttle and boost transition
Posted: Fri Jul 08, 2011 11:59 am
by body80
No one has any ideas for me.
I'm lost.
Re: Tap in throttle and boost transition
Posted: Fri Jul 08, 2011 10:57 pm
by sssbassil
whats the injector pulse width doing? it looks like it mite jump, maybe ttpmax is low
Re: Tap in throttle and boost transition
Posted: Sat Jul 09, 2011 12:52 pm
by body80
I've gotten it alittle better.
I still have a lean spot in the vacuum to boost transition. Check out the pic, that spike on the lower red line is right where -psi crosses over to +psi.
I've attached my tune. Could someone please take a look at it and see if maybe I'm missing something.
Also, I've researched all the nistune documentation and this table it's referenced on any of them.
Matt will you be updating any of the documents? It's seems as though you've advanced and learned alot more since these have been published. Adding more tables and renaming some others.
This table states "TPS enrichment trigger" and at the top of the window it states "TPS determination to use Fuel Maps"
What does this mean. Where is it getting it's fuel values from if it's NOT using the fuel maps?
Here's the table I'm talking about.