OK this is prob a stupid ? but i keep reading bout ppl putting a Lexus v8 air flow meter into there supras. is there a benefit to doing this?
air flow meter ?s
- Thread starter Sassan
- Start date
Yes, the Lexus V8 AFM along with 550cc injectors. 25% more air and 25% more fuel. Search around and you can find some other details that may help you with any questions you may have.
hvyman;1674908 said:
At what speed does Fuel Cut kick in? ive never gone over 100 MPH in the Supra
Most hit fc between 9-14psi stock turbo. Im at 10psi 57trim witrh no fc on stock fuel. Every car is different and altitude and temp can effect it. As long as you dont have a fcd uping boost to just below fc is acceptable. Tuning will give you more power and might let you run a couple more psi.
Yeah you hit fuel cut from the turbo trying to suck too much air in and create too much boost from my understanding. I know it has absolutely nothing to do with speed though. And yeah I raised mine to about 10-11 PSI and it would be okay but the only problem is I would hit fc when I banged it into second gear hard, or even third for that matter(like a real quick shift, not really losing boost), so I turned it down to 9 PSI and it's great. Anyone have idea's why it would only fc when i would shift really quick like that? Also I'm workin up to my intercooler install just need some couplers then it should be nice:icon_bigg
Boost creep when you shift fast and or flat foot shift.. The boost will raise, I am running 13 lbs on stock fuel system and AFM.. No problems here, Just stock AFM screw modified and tuned
Cant really modify it but rather unscrew the factory screw out more to let more unmetered air in. Cant "tune" the stock system. Need something to "trick" to tune.
Its also pre boost. Just intake. You intake too much air then what the system has for fuel.
When you shift like that basically wat devin said. You dont lose as much boost and there for have much more time with the rpms and load to build more boost or boost creep. Port the waste gate hole and that wont hapen. Tho not really worth it with stock ct.
Its also pre boost. Just intake. You intake too much air then what the system has for fuel.
When you shift like that basically wat devin said. You dont lose as much boost and there for have much more time with the rpms and load to build more boost or boost creep. Port the waste gate hole and that wont hapen. Tho not really worth it with stock ct.
My idle is great, and my VF is right where it should be.. I idle at 650rpms cruising AFR is 14.3-15.0 bouncing back and fourth.. WOT under full boost is 11.0
Hey total noob here but where is this magical screw? Someone have a quick pic? I've gone through 3 AFM's. I just found out my K&N was ruining them (too much oil), but my 3rd one right now won't let me hold an idle. I either bought a bad AFM (getting code) or maybe I need to adjust the screw....
Screws dont need to be adjusted hence why there blocked off with a cap from the factory. Your idle problems are else where.
And ya k&N filters will do that.
And ya k&N filters will do that.
Colder air has a higher density... so it will have an effect on your AFM readings, causing you to hit fuel cut easier.
Have you checked for boost leaks?
Have you checked for boost leaks?