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CBAZA Trends timing not following tables

  • Thread starter Thread starter R100RT
  • Start date Start date Oct 24, 2007
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final5-0

Mustang Master
Apr 6, 2003
6,817
12
79
DFW Texas
Oct 29, 2007
#21
  • Oct 29, 2007
  • #21
Hey Eric

Were you able to make any head way with your datalogged spark values

Grady
 
R

R100RT

Founding Member
Nov 27, 2000
362
0
16
Sonora, CA
Oct 29, 2007
#22
  • Oct 29, 2007
  • #22
I will soon. I want to rework the tables first.

Eric
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Oct 29, 2007
#23
  • Oct 29, 2007
  • #23
there is no need to set all those values to 55, the MBT table is your main table that will limit timing , just add 4 degrees to the entire table and then use the borderline table to adjust timing , I usually set the global adder to 2 or 3 , and then from 70 percent load and up add 2-3 more degrees , but watch the higher loads at 4000 rpms and up and make sure you dont get too crazy with those or you will get some upper rpm ping .....
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Oct 29, 2007
#24
  • Oct 29, 2007
  • #24
final5-0 said:
Eric

Please allow me to make things a bit more clear than my earlier attempt

You mentioned briefly ... spark taken from the lowest table
and
That can be the case if you got all four active
but
Other adders and what not can really hose with things

Lets just keep it simple for the time being
and
Focus on the base table without other interference

btw ... If you have not updated your cubic inch scalar for the stoker,
your load is gonna be all hosed up

anyway

Since you use a load switch value of 0 ......
your top load row in the table is definitely gonna be WOT

Using the dlog you provided ....
I'd say you were using load rows .2, .3, & .4 for most conditions

Now ... Take a look at your file and see if what you command in
those load rows more closely matches the values you see in
that dlog.

I can't look at V1.30 stuff so I'll take Mr. Wes at his word
about you killing out most of the spark adder stuff so we
will hope nothing is adding value to the base table

Again ... Sorry about going down that CL & OL road

You wanna use LOAD to determine the spark thing

Greg, Wes, and 2002BLGT have made some very good points
for you to consider

Let us know what you find Eric

Grady
Click to expand...

hey Grady name is Willie , nice to meet you ....
 

final5-0

Mustang Master
Apr 6, 2003
6,817
12
79
DFW Texas
Oct 29, 2007
#25
  • Oct 29, 2007
  • #25
2002BLGT said:
hey Grady name is Willie , nice to meet you ....
Click to expand...

Hey ... back at ya Willie

Grady
 
R

R100RT

Founding Member
Nov 27, 2000
362
0
16
Sonora, CA
Oct 30, 2007
#26
  • Oct 30, 2007
  • #26
Update

In my work, I'm an instrument and controls engineer, we have a saying that describes when something works, but looks like it doesn't ,because we don't really know how it is soppose to work. We say the equipment is "malfunctioning perfectly". With regards to the Tweecer, the problem was that the spark wasn't doing what I thought it should do. The real problem was a short between the ears, (headset).

I set the MBT tables to 55, set the alt and bdln tables to base plus 2. I put all the adders back to stock Cobra settings. I pulled spark below 1500 rpm to help the shuffle I was getting.

The lean moderate cruise problem is gone and the car will idle down the street without bucking.

I built a WB fot the '65 TT Mustang but I will probably buy one for the '94 Vert. Once installed, I will optimize the upper end. It runs fine now but may have a few HP left. The vert feels strong but nothing like 560HP in 2800 LBs! I can't drive the '65 for work without worrying about it all the time. Maybe some NO will be in my future.

Thanks guys, for hanging in there with me.

Eric
 
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