|
nyet
|
 |
« Reply #30 on: August 12, 2016, 10:20:13 AM »
|
|
|
My problem existed when I was NA as well. More specifically when I installed the 630cc and dialed them in.
This doesn't make any sense. If the 630cc's injectors were properly dialed in, they'd deliver exactly the same amount of fuel as the stock injectors, unless the spray pattern was completely wrong or there was some other mechanical problem. In any case, proper diagnosis would require getting a proper logger written for this ECU. |
|
|
|
|
Logged
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
 Offline
Posts: 154
|
|
« Reply #31 on: August 12, 2016, 10:41:40 AM »
|
|
|
This doesn't make any sense. If the 630cc's injectors were properly dialed in, they'd deliver exactly the same amount of fuel as the stock injectors, unless the spray pattern was completely wrong or there was some other mechanical problem.
In any case, proper diagnosis would require getting a proper logger written for this ECU.
I wholeheartedly agree with you. I did the logical thing and swapped back to stock injectors and tune and the problem was gone. |
|
|
|
|
Logged
|
|
|
|
|
nubcake
|
|
« Reply #32 on: August 12, 2016, 02:12:01 PM »
|
|
|
Which 630s did you use?
|
|
|
|
|
Logged
|
|
|
|
|
nyet
|
|
« Reply #33 on: August 12, 2016, 02:19:30 PM »
|
|
|
KFBAKL gives acceleration enrichment, more the KFBAKL more is the enrichment
Why would changing injectors require a change to this map? |
|
|
|
|
Logged
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
Offline
Posts: 154
|
|
« Reply #34 on: August 12, 2016, 05:57:59 PM »
|
|
|
Which 630s did you use?
USRT Genesis II. Essentially Bosch EV14. |
|
|
|
|
Logged
|
|
|
|
|
Carsinc
|
|
« Reply #35 on: August 12, 2016, 07:12:26 PM »
|
|
|
This doesn't make any sense. If the 630cc's injectors were properly dialed in, they'd deliver exactly the same amount of fuel as the stock injectors, unless the spray pattern was completely wrong or there was some other mechanical problem.
In any case, proper diagnosis would require getting a proper logger written for this ECU.
|
|
|
|
|
Logged
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
Offline
Posts: 154
|
|
« Reply #36 on: August 12, 2016, 10:34:57 PM »
|
|
|
you know I thought that but the spray pattern was designed for multi valve heads. Scott saw to that. Maybe I have a bad one? |
|
|
|
|
Logged
|
|
|
|
|
nubcake
|
|
« Reply #37 on: August 13, 2016, 02:14:51 AM »
|
|
|
Did you position them correctly? In such a way that the spray pattern mimics stock injectors.
Tried adjusting TVUB? How do fuel trims look with them?
|
|
|
|
|
Logged
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
Offline
Posts: 154
|
|
« Reply #38 on: August 13, 2016, 10:42:51 AM »
|
|
|
Did you position them correctly? In such a way that the spray pattern mimics stock injectors.
Tried adjusting TVUB? How do fuel trims look with them?
I positioned them as close to stock as possible. They do have a long neck that extends down past the o-ring probably 3/4" so they protrude into the air stream whereas the stock injectors have their exit right after the o-ring. My fuel trims are dialed in within 3%. I'll have to get TVUB looked at. |
|
|
|
|
Logged
|
|
|
|
|
Carsinc
|
|
« Reply #39 on: August 13, 2016, 01:24:43 PM »
|
|
|
I thought we were talking 24v vr6...
I understand they are multivavle heads but they have crazy long runners unlike most other multi
valve heads. On the site they show a 1.8t. I thinking your spraying a ton of fuel on the walls of the ports instead
of atomizing it.
|
|
|
|
|
Logged
|
|
|
|
|
nubcake
|
|
« Reply #40 on: August 13, 2016, 01:34:30 PM »
|
|
|
I positioned them as close to stock as possible. And this might be wrong. Different injectors have different spray pattern. Check http://s4wiki.com/wiki/Fuel_injectors#OrientationEDIT: I assume you're using Porsche 997tt 630s with long neck? Here's TVUB from the stock 997tt binary: 7.01 10.05 12.04 14.02 16.00 3.07 1.41 1.00 0.65 0.57 |
|
|
|
« Last Edit: August 13, 2016, 01:44:03 PM by nubcake »
|
Logged
|
|
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
Offline
Posts: 154
|
|
« Reply #42 on: August 13, 2016, 03:16:11 PM »
|
|
|
It's not. Try again. Anyway I'm not here to argue with you. You've provided some insight so I thank you for THAT. |
|
|
|
|
Logged
|
|
|
|
q_dubz
Full Member
Karma: +3/-0
Offline
Posts: 154
|
|
« Reply #43 on: August 13, 2016, 03:17:27 PM »
|
|
|
I thought we were talking 24v vr6...
I understand they are multivavle heads but they have crazy long runners unlike most other multi
valve heads. On the site they show a 1.8t. I thinking your spraying a ton of fuel on the walls of the ports instead
of atomizing it.
40v 4.2L |
|
|
|
|
Logged
|
|
|
|
|
Carsinc
|
|
« Reply #44 on: August 13, 2016, 04:02:57 PM »
|
|
|
Well different engine than op, but i stick with spary pattern problem.
|
|
|
|
|
Logged
|
|
|
|
|
