I have 550cc injectors, and the lex afm mod. Will I still hit fuel cut when I turn the boost up? Shooting for 14-18psi.
fuel cut?
- Thread starter Supraguy7M
- Start date
I will b running the 60 trim ct-26. Its not the greatest but I was told it will withstand that much boost
OfnaRcR4;1931388 said:
I dont have a boost leak. I've been thru the whole top end of the engine and a brand new fmic with hardpipes. My car hasn't been started yet since the rebuild. I pressure tested my intercooler setup to make sure I wouldn't.
Bryan, do you think ill b able to reach my goal of 18psi with those mods? I have the walbro 255 fp as well with the lex mod.
How would I tune my factory pcm? This is my first perfomance build, so a lot of this stuff is new to me.
At this point I don't think its in my budget to pull those off.. they are pretty pricey.. can I run my current setup without a tune? Just watch my a/f ratio?
AFPR and make sure your fuel pressure stays up and you should be able to push 16lbs without fuel-cut. you might need to go SAFCII when you start getting close to twenty, this is about 400$
you'll need to get a wideband to watch I suggest what hvyman said it's make things a whole lot easier and then go from their
becuase you'll either run rich or run lean without a tune or a wide band to watch your a/f ratio but if you just get a tuning device and take it to a shop to get tuned you won't need a wideband becuase ships usually have their own they use to tune with
becuase you'll either run rich or run lean without a tune or a wide band to watch your a/f ratio but if you just get a tuning device and take it to a shop to get tuned you won't need a wideband becuase ships usually have their own they use to tune with
OfnaRcR4;1931434 said:
yeah but stock turbos don;t pull hard after 5500 rpm, even if the ct26 pulls hard to 6k it's gunna start leveling off, this is when AFPR and wideband o2 sensor is a good idea to monitor, it's also an easy 500$+ combo.. the other route is an SAFCII and get someone to tune into a safe range for you. I wouldn't run over 16 on my 440's(1jz) personally even though I know with cams and my aftermarket ecu I can push 18 without fuelcut, but I'd be worried about it going lean somewhere close to the 7k rpm mark.
I have a wideband on the way, its a good thing to have (with a tune or without). I think ultimately ill need to get a piggyback and tune it, but for now ill just figure it all out using the wideband setup. Thanks everyone for their input. Definitely cleared it all up for me
BryanDyer;1931437 said:
Yeah, I wanna enjoy my 7m... Not end up like some of the people who think they are unreliable. Lol mind ran and got me back and forth to work (only vehicle at the time) blown up, with a spanked turbo LOL
Supraguy7M;1931443 said:
mise well get an air fuel pressure regulator to go with it then and have your fuel pressure where you need it to be. I know the lexus AFM can give you some piece of mind but it doesn't hurt to know all the information you need.
Beals;1931445 said:
That's exactly what I'm trying to do. Gather all the info I can, so when I turn the key for the first time again I have no issues, and know the limits of what I have right now
Saying you have no tune sounds quite dumb. If you had no tune, the car wouldn't run. You have the Toyota tune.