EEC findings! Check this out!

[rendyx]

I was debating if I should sell my spare L0S, as my previous owner tossed an X2J in my 91. I used the SC tuner trial software, and compared the settings for each EEC I am involved in (including the B9B in my 89).

Here is what I found:

L0S: greater timing advancement as RPMs increase, 7200RPM redline, secondaries open at 3950

X2J: less timing advancement as RPMs increase, 7200RPM redline, secondaries open at ~3600

B9B: same timing advance by RPM as L0S, 7800RPM redline (so the tach is accurate?), much faster rate of timing advance at different RPMs (explains 89's touchier throttle?)

I'm going to swap my B9B into my 91 soon and see if I can notice a difference. This could get interesting!

Let me know if I'm wayyyyyy to far in the wrong direction. I'm just beginning to learn about the EEC calibrations, so bear with me! thumb

 

[Slo-Sho]

I'm pretty sure it's recommended to stay away from the B9B1 and the B9C1 found in the 90 cars, due to "bugs" in the programing. I could be wrong though, I'm just a lowly D4U1 guy.

 

[rendyx]

slosho:
I'm pretty sure it's recommended to stay away from the B9B1 and the B9C1 found in the 90 cars, due to "bugs" in the programing. I could be wrong though, I'm just a lowly D4U1 guy.

B9B was in 89, B9B1 was in 90

 

[jthomas68]

<---LOS here

 

[Mike Kopstain]

Jeremy, you forgot the ER.

 

[Bizzy]

lol

 

[Bluto]

Oh my eek!

 

[rendyx]

Anywho...

I am hoping to do the B9B swap very soon - maybe even tonight. I'll report the results after I do it! Who knows, a B9B may be the MTX equivalent of the D4U1.