550 injector help

chris mk3 · 01-28-2010, 04:31 PM

thanks for your reply i will update you on the mods on the car i am running at 10psi off boost at the moment we have a massive intercooler boost controller, fuel cut off and i received today the low resistance direct replacement 550 injectors and i am waiting for the fuel pump. we are planning on putting the sp61gt turbo and i also have the lexus afm body ready to fit. planning on taking it up to about 500 bhp with the lexus afm body and the 550 injectors and bigger fuel pump. will the car be over fuelling. because i have been told that with this set up it will be a perfect match. but i have also been told that it will over fuel. apprantaley with this set up its suppose too trick the computer so the fuel and air flow will be a good match but i am not sure of this. be great full if someone could give me the information i am looking for before i start.

Green7mgte · 01-28-2010, 04:41 PM

i feel as if i've heard this somewhere before.

cre · 01-28-2010, 05:38 PM

Wow, an echo.... echo....

I'm with Green, get a wideband and a fuel controller. You're too far from stock with your setup to just guess and hope that you've maintained some sort of safe balance... besides, there's a lot more power to be had from proper tuning.

01-28-2010, 04:41 PM	#2
Green7mgte Supra Forum Moderator Join Date: Nov 2009 Location: Green-Ohio Posts: 1,297	i feel as if i've heard this somewhere before. __________________ 92 Ma71 7mGTE Auto. SafcII Supra FAQ Supra MKIII FAQ Classified Section guidelines : Last edited by Green7mgte; 01-28-2010 at 05:42 PM.

01-28-2010, 05:38 PM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Wow, an echo.... echo.... I'm with Green, get a wideband and a fuel controller. You're too far from stock with your setup to just guess and hope that you've maintained some sort of safe balance... besides, there's a lot more power to be had from proper tuning. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

01-28-2010, 04:31 PM	#1
chris mk3 Stock Join Date: Oct 2009 Location: carmarthen Posts: 4	thanks for your reply i will update you on the mods on the car i am running at 10psi off boost at the moment we have a massive intercooler boost controller, fuel cut off and i received today the low resistance direct replacement 550 injectors and i am waiting for the fuel pump. we are planning on putting the sp61gt turbo and i also have the lexus afm body ready to fit. planning on taking it up to about 500 bhp with the lexus afm body and the 550 injectors and bigger fuel pump. will the car be over fuelling. because i have been told that with this set up it will be a perfect match. but i have also been told that it will over fuel. apprantaley with this set up its suppose too trick the computer so the fuel and air flow will be a good match but i am not sure of this. be great full if someone could give me the information i am looking for before i start.