X-Flash
I asked this question a while back... is there any way to quantify where. if anywhere, the fuel cut has been moved to? Ryan, do you have xedeflash already? or are you thinking of ordering it?
Last edited by limey; Jan 21, 2004 at 02:56 PM.
Evolved Member
iTrader: (20)
Joined: Mar 2003
Posts: 4,941
Likes: 0
From: Danville/Blackhawk, California
Hi guys,
The boost cut is not removed. But it's been raised to 25-28psi depending on associated mods. This is because the boost cut is actually triggered by MAF, not boost. As such, MAF and boost don't always go hand-in-hand and depend upon what level of free flow mods are on the car.
Cheers,
shiv
The boost cut is not removed. But it's been raised to 25-28psi depending on associated mods. This is because the boost cut is actually triggered by MAF, not boost. As such, MAF and boost don't always go hand-in-hand and depend upon what level of free flow mods are on the car.
Cheers,
shiv
Trending Topics
I am confused .....I thought the xedeflash raised the factory fuel cut which is induced by the MAF signal value? I wanted to know where to, because with the stock ECU fuel cut happens at circa 23psi.....I know the boost ceiling is raised to around 25 psi from 19.5 with the removal of the restricter pill prior to the factory boost solenoid...
I have read this thread a few times and I think I am asking something different to Ryan....
I have read this thread a few times and I think I am asking something different to Ryan....
Last edited by limey; Jan 21, 2004 at 04:37 PM.
I know with the Dynoflash it is set at 7800rpm. I like the sound of having the ability to adjust the Boost tables in the Factory Ecu. Sounds like it would be a great alternative once you get the software for home changes of boost and A/F I dont know if I would want to mess with the timing . Please let us know, Please no bashing of what is better or worse just simple mine has this please I dont want to destroy a good informative thread.
So the Xflash raises boost to 25-28 psi?????? Isnt this a litle too much?
I thought Shiv told me the X flash went to 20-21 for a brief moment then settled to around 18 at redline?
This is getting strange?
I thought Shiv told me the X flash went to 20-21 for a brief moment then settled to around 18 at redline?
This is getting strange?
Guys, fuel cut or boost cut is the level of airflow at which the ECU will shut down the injectors. When you hit it, you are usually at WOT with raised boost. When fuel cut hits, it feels like you hit a freaking brick wall.
Boost control and "boost cut" are two entirely different things. That is why I like calling it fuel cut. When the ECU sees too much air entering the engine, it turns off the injectors. In other words, it cuts fuel. It is an engine safety feature to keep the engine from destroying itself in the event of a wastegate malfunction.
Raising the fuel cut level does not mean that boost is raised. It just means that you CAN raise boost without hitting fuel cut.
The boost tables are what control the boost.
Boost control and "boost cut" are two entirely different things. That is why I like calling it fuel cut. When the ECU sees too much air entering the engine, it turns off the injectors. In other words, it cuts fuel. It is an engine safety feature to keep the engine from destroying itself in the event of a wastegate malfunction.
Raising the fuel cut level does not mean that boost is raised. It just means that you CAN raise boost without hitting fuel cut.
The boost tables are what control the boost.


