Blackfly XFi?

[GasSavers_DaX]

More advanced timing is better for FE (more power, etc) but there is a limit you approach where detonation happens and typically tuners approach the detonation limit then back off a few degrees.

[ALgeovalley]

Originally Posted by MetroMPG

The car won't ping if you re-adjust the timing.

Transmission is from a 93 Swift 1.3L 4-cyl. Much taller final drive than the XFi transmission.

As for timing, generally speaking, I've read that more advance is better. Of course you run the risk of ping under high loads the further forward you go.

What about a transmission From a 95 or 96 4 cyl ("Geo Metro") ? it is a 5 speed transmission, Please comment on this for me, THANKS.

[MetroMPG]

Any of the 4-cyl transmissions will have a taller final drive than the 3-cyl versions. It may vary slightly depending on the model & wheel/tire size.

[ALgeovalley]

well, i got the transmission in today,, also took it to the gas station and filled er up, hit the trip button and away i rode love the way it shifts out, it's not what i expected! the rpm's are so laid back just like you said!

i will be driving this car in the country hills only, rarely i'm on the highway...

[MetroMPG]

Congrats! It's quite the difference isn't it? Pleasant surprise.

You should fill in your garage info so we know more details about what you're driving.

Looking forward to your results.