[Six-n-twins]

When you get it tuned, it is RPM dependent, right? So, say it is tuned at 18 psi. Can the system compensate when you run 15psi, or 20 psi. Can you switch between presets? Or would boost level not mess with how it was tuned?

 

[Steve Jarvis]

It will be ok when you switch between boost levels. Remeber it adds a % to the stock fuel maps determined off the MAF. When you turn the boost down the MAF will see less airflow and reduce the fuel. The S-AFC will then add your adjustment to the lower base number.

Hope this helps, Steve

 

[Six-n-twins]

Yes it does help. So it basically alters the signal based on what the MAF is seeing, as opposed to being a static fuel curve. Thanks

 

[Hwilli]

Correct me if I am wrong, but the MAF is b4 the turbos, thus it doesn't see boost.

 

[*wishlist*supraTT]

which one is easier to install, safc or safr? which one is better to use for an n/a supra? also, does anyone know what i will be doing when i am installing this? will i be cutting wires? which wires? etc? i'm thinking of ordering one of these at the same time as the exhaust, installing them both myself to save money, and then get the safc/safr dynotuned. what do you think? how much should i be looking at to get this dynotuned (am i spelling that right?)... and how long will it take to dynotune? thanks.

 

[theman]

Yes it is before the turbos, but in order to run more boost you have to cram that much more air in, and thus more air will be travelling through the MAF...

 

[Hwilli]

His original question (if I am reading it correctly) is can he tune the AFC per what boost he is running.

Since you're actually not measuring boost at the MAF, then I would think the answer is no. You'll obviously be able to tune the AFC by hand, but you won't be able to say X fuel map per X boost.

At least I wouldn't think so.