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Originally Posted by Nismo87SE
After doing some more driving I really hate the stock ecu. The amount of timing advance that is pulled is crazy. While I do understand that its tuned for 87 octane, I'm thinking about just advancing it to 19* on 89 octane and call it a day. One thing that gets me is the sluggishness of the engine around 1600-2200rpm at 15-25% throttle. For example using 20% throttle in 1st gear then shifting at 3000rpm lands 1700-1800rpm in 2nd gear. The timing advance goes from 25-27* to 7-9* and stays there till 3000rpm where it goes to 10-11*.
My JWT ecu on the other hand would never drop below 16* at all. As a matter of fact it would've ran around 18-24* given the same conditions. Also I noticed that my injectors are running a high duty cycle as well.
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I noticed the same on the 96 g20 ECU that is my 96 B14 SER. ANd I did some road runs datalogging with the COnsult stuff from Impact and Nissan Datascan 1.4. Data did indeed show a large timing rollback. Most I have seen on the MAF is 4.4 ( Hotshot WAI , Gen 6 ) I did try clocking the MAF while doing garage pulls to 7000 and found a position that picked up the MAF from 4.1 to 4.4. BTW the car is set at 17.5 base and i run 93 octane all the time. 77K on car and engine.
Milburn
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93' White SE-R. B14 wheels, sunny turn signals, tsuru taillights, NX2000 brake upgrade, Axxiss ultimates...
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