Tap in throttle and boost transition

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body80
 

Posts: 11
Joined: Tue Apr 19, 2011 10:30 am

Tap in throttle and boost transition

Post 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.
Late AFR.jpg
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Late AFR_2.jpg
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Late AFR_3.jpg
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Any tips?
body80
 

Posts: 11
Joined: Tue Apr 19, 2011 10:30 am

Re: Tap in throttle and boost transition

Post by body80 »

No one has any ideas for me.
I'm lost.
sssbassil
 

Posts: 49
Joined: Sat Sep 04, 2010 8:42 pm
Location: new zealand

Re: Tap in throttle and boost transition

Post by sssbassil »

whats the injector pulse width doing? it looks like it mite jump, maybe ttpmax is low
body80
 

Posts: 11
Joined: Tue Apr 19, 2011 10:30 am

Re: Tap in throttle and boost transition

Post 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.
t right.jpg
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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.
TPS enrichment.jpg
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Attachments
07-08-11.bin
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