12-02-2022, 09:10 AM | #15 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
|
what is your current fuel system setup from injectors to low side?
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
12-02-2022, 11:03 AM | #16 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
50 gph meth low side with jms booster lt4 inj and high pump low side stays 73
|
12-02-2022, 03:40 PM | #17 |
Drives: 2015 Camaro ZL1 Join Date: Oct 2020
Location: Clinton Twp, Michigan
Posts: 241
|
|
12-02-2022, 05:14 PM | #18 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
so did some logging with the angle and % at 5.4 idc pw its 122 deg at 27.5% rail pressure is down to average 2500 to 2600, 2900 commanded
What yall think? It has to drop down to 4.9 or 5 to get to 2900. low side steady at 73 Last edited by Kerry; 12-02-2022 at 05:31 PM. |
12-02-2022, 05:38 PM | #19 |
Account Suspended
Drives: 21 ZL1 Join Date: Feb 2022
Location: South East
Posts: 662
|
|
12-02-2022, 06:33 PM | #20 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
|
What AFR? I am surprised the DI system is working that hard with 50gph of meth. Either way you are ok where it's at, just close to the limits is all.
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
12-02-2022, 08:26 PM | #21 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
11.5 to 9 there abouts
|
12-03-2022, 08:24 AM | #22 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
So is their anyway to get a little more out of the high pressure pump. Other than a cam?
|
12-03-2022, 09:44 AM | #23 |
Account Suspended
Drives: 21 ZL1 Join Date: Feb 2022
Location: South East
Posts: 662
|
I dont know the name maybe katech, but another company makes a bigger bore HPFP you can upgrade to. I think its super expensive. Or equally more expensive would be port injection. Just get the cam.
|
12-03-2022, 09:45 AM | #24 |
Account Suspended
Drives: 21 ZL1 Join Date: Feb 2022
Location: South East
Posts: 662
|
|
12-03-2022, 10:02 AM | #25 | ||
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
|
Quote:
Quote:
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA Last edited by KingLT1; 12-03-2022 at 11:47 AM. |
||
12-03-2022, 11:21 AM | #26 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
thanks i will try that.
|
12-04-2022, 08:59 PM | #27 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
Posts: 828
|
So let me make sure im understanding this correctly. the 6 ms is about injection time. having enough time to get the fuel in time for it to work correctly.
If it goes to say 5.5 or so and even though the high pressure is droping some it will try to compensate by keeping the injector open longer keeping things at commanded but getting on the ragged edge and if the high pressure drops too much injectors go past 6 and then it could be out of fuel and be lean. Even though my high side drops to around 2500 at 5.5 and lamda or afr is still good Its good right? |
12-05-2022, 07:26 AM | #28 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
|
Yes...People mention pressure drop as a point of reference as to where the weaklink might be in the system. The main thing is that the fuel is delivered within the 6ms. after that the fuel isn't burnt efficiently and you end up with some unburnt fuel going out the exhaust. It gets worse the higher above 6.0 the pulsewidths get.
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
|
|
Post Reply
|
Thread Tools | |
|
|