• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Am i running out of fuel?



it is very possible youre running out of fuel. youre running a 3.2 non-intercooled, which leads me to believe your next step is injectors..

however, what are your air temperatures down there? in the winter i get close to maxing my injectors out because of the cold air and it dumping more fuel in. i dont remember your scans from before, but i swear you were okay on the injector front a little while ago. your IATs are reading in the low 20s, is that correct? the cold air is causing your car to use more fuel then. it's maxing them out from the cold air.

time to start looking for some 42.5# err..
 
Let's do the math on frame 306. You're running at 6207 RPM; 6207/60(seconds per minute) = 103.45; 1000(milliseconds per second)/103.45(rotations per second) = 9.6665 ms per rotation. Your intake valve is opened once every other rotation, so 9.6665*2= 19.333 ms between intake strokes. You are commanding a 20.56 ms IPW and that's not even counting dead time, so yeah, I'd say it's time to upgrade.
 
Last edited:
Bio248 said:
it is very possible youre running out of fuel. youre running a 3.2 non-intercooled, which leads me to believe your next step is injectors..

however, what are your air temperatures down there? in the winter i get close to maxing my injectors out because of the cold air and it dumping more fuel in. i dont remember your scans from before, but i swear you were okay on the injector front a little while ago. your IATs are reading in the low 20s, is that correct? the cold air is causing your car to use more fuel then. it's maxing them out from the cold air.

time to start looking for some 42.5# err..
Click to expand...

Coldest we been this year is the 40's.
Thats only in the morning then it goes back to the 80's.
Iat's readings are weird.
They say a pt reads on c*so dont know.
Its a brand new iat sensor.
 
Scimmia said:
Let's do the math on frame 306. You're running at 6207 RPM; 6207/60(seconds per minute) = 103.45; 1000(milliseconds per second)/103.45(rotations per second) = 9.6665 ms per rotation. Your intake valve is opened once every other rotation, so 9.6665*2= 19.333 ms between intake strokes. You are commanding a 20.56 ms IPW and that's not even counting dead time, so yeah, I'd say it's time to upgrade.
Click to expand...

Thanx for the info.
42'lbs anyone?
 
You must log in or register to reply here.
Back
Top