FTO Drivers Club, Western Australia

[RichardH]

I've just uploaded a new article to ftowa.com - "Adjusting MIVEC Air/Fuel Ratios":

https://ftowa.allanson.org/html/workshop/workshopart11.html

It's an in-depth look at a way to gain a measure of control over the mixtures in the MIVEC rev range. Some interesting results!

Enjoy!

- Rich

[mr.bishi]

Very interesting!

So ideally,what would you like your afr to read right across the rev range at wide open throttle and say 50% throttle?

[RichardH]

For wide-open throttle, the guy running the dyno reckoned he'd aim for 13:1.

That's what I already have - right up to the last few hundred rpm, where the factory tuning starts building in a safety buffer by making the mixture richer.

For 50% throttle, I don't honestly care.

- Rich

[mr.bishi]

Mine's running nearer 13.5

14.7 at part throttle (incase you care ) I have a wide band and display hard wired into my car with the means to adjust and i love watching the differeces at different throttles and revs (childish i know! )