For N/A owners, who's running a S-AFC?
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Joined: Mar 2001
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From: Freakmont, CA
URizen:
If your not familiar with dyno tuning vechiles you should do some dyno shop searching. Most of the dyno shops have one in house person who does there tuning for clients. Go talk to this person and see if he/she has ever tuned with the S-AFC before. Bring the user manual with you in case they have never seen it. But most piggy backs are the same its just learning the specifics, menus, options of the gear’s software.
Asherwood:
The S-AFCII allows you to modify the fuel curve at only a handful of RPM points so you have to chose wisely on where to dial in you’re A/F curve. In Kevin’s case most of the tuning was done at the upper RPM range to take advantage of the modifications we had done to his car. You have to remember this is a N/A rotary, torque what torque
. Remember it’s not just the max HP # that makes the car faster it is the way the engine pulls thought the whole RPM range. If you see his graphs you can see we raised the power nice and consistently over the whole range. This makes the car pull harder all the way to red line. Same goes for that toque curve even tough we only raised the max TQ # up .6 the whole curve was smoothened out making the motor work more consistent all the way to redline.
- Dana
If your not familiar with dyno tuning vechiles you should do some dyno shop searching. Most of the dyno shops have one in house person who does there tuning for clients. Go talk to this person and see if he/she has ever tuned with the S-AFC before. Bring the user manual with you in case they have never seen it. But most piggy backs are the same its just learning the specifics, menus, options of the gear’s software.
Asherwood:
The S-AFCII allows you to modify the fuel curve at only a handful of RPM points so you have to chose wisely on where to dial in you’re A/F curve. In Kevin’s case most of the tuning was done at the upper RPM range to take advantage of the modifications we had done to his car. You have to remember this is a N/A rotary, torque what torque
. Remember it’s not just the max HP # that makes the car faster it is the way the engine pulls thought the whole RPM range. If you see his graphs you can see we raised the power nice and consistently over the whole range. This makes the car pull harder all the way to red line. Same goes for that toque curve even tough we only raised the max TQ # up .6 the whole curve was smoothened out making the motor work more consistent all the way to redline.- Dana
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Rotary Enthusiast
Joined: Mar 2001
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From: Victoria, BC, Canada
Dana, thanks for the detailed reply, I beginning to think that of all the money that I have spent so far on this car, a S-AFC will bring an improvement worth the investment.
I will have to check around town to see if there is a dyno available and somebody who know's how to tune a rotary with a piggy back S-AFC...
Al
I will have to check around town to see if there is a dyno available and somebody who know's how to tune a rotary with a piggy back S-AFC...
Al
Last edited by asherwood; Apr 28, 2004 at 03:37 PM.
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From: fl
rarestrx: i just noticed when i was looking at your graphs again that you tend to go rich right before the secondaries come on (from about 3-4k) have you tried leaning this part out also?
btw. i love your tourque curve--no boinger can ever get it that flat!
btw. i love your tourque curve--no boinger can ever get it that flat!
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Joined: Mar 2001
Posts: 987
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From: Freakmont, CA
Andrew:
Like I said before there are only a hand full of rpm points to play with we had to pick and chose to get the optimal performance. I think another run on the dyno we could probably dial that spot you are talking about better.
- Dana "Kevin's mechanic"
Like I said before there are only a hand full of rpm points to play with we had to pick and chose to get the optimal performance. I think another run on the dyno we could probably dial that spot you are talking about better.
- Dana "Kevin's mechanic
"
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