stumbling and choking after 5,000 rpm?
#102
Senior Member
Thread Starter
iTrader: (1)
Join Date: Sep 2006
Location: Hong Kong
Posts: 523
Total Cats: 0
I dunno what the BLACK BOX is doing to the fuel... but once out.. everything is fine!
Running now with an 1.7:1 AFPR... working very well with the 1.8 injectors for fuel.. but can't really tell once its on the dyno and cheak the A/F.
Running now with an 1.7:1 AFPR... working very well with the 1.8 injectors for fuel.. but can't really tell once its on the dyno and cheak the A/F.
#103
As I recall, the black box was pretty heavy-handed...I think it just fooled the ECU into thinking it was running cooler (like a 160° thermostat would) at all times which makes the car richer. It was pretty basic.
If you're only running a 1.7:1 AFPR now, and not the 12:1 Vortec, then you're running too lean at this point
If you're only running a 1.7:1 AFPR now, and not the 12:1 Vortec, then you're running too lean at this point
#105
Boost Czar
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,493
Total Cats: 4,080
yeah, 1.7psi of fuel for 1psi of boost. = ( 1.7 x 5 ) + 50 = 58.5psi of fuel.
265cc injectors at 58.5psi of fuel can fuel 140rwhp, I'd say that's cutting it close.
are you trying to say 1.7:1, 3.4:2, 5.1:3, etc.?
265cc injectors at 58.5psi of fuel can fuel 140rwhp, I'd say that's cutting it close.
are you trying to say 1.7:1, 3.4:2, 5.1:3, etc.?
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM
JesseTheNoob
DIY Turbo Discussion
15
09-30-2015 02:44 PM