Massive power/tq drop on Dyno, possible cause?
#76
03-23-2016, 12:07 AM
Join Date: Nov 2015
Location: Bellevue
Age: 37
Posts: 95
Rep Power: 17 
I am going to gap my plugs again this Friday as i did not check the gapping before installing.
I do hear slight misfires during deceleration, the plugs are brand new Bosch ones from pelican parts.
I will be checking for leaks as well I will also due some more logs tomorrow using a different program on my laptop as well as on Torque android app.
I do hear slight misfires during deceleration, the plugs are brand new Bosch ones from pelican parts.
I will be checking for leaks as well I will also due some more logs tomorrow using a different program on my laptop as well as on Torque android app.
#77
03-23-2016, 12:20 AM
Yeah gapping plugs is big. My shop has to do mine too. I think he left them around high 20s they need to be mid 20s gap.
#79
03-23-2016, 12:52 PM
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the problem is in your toone...
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997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
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ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#TeamAIM
997TT SilverSpool - 210.8 mph 1/2 Mile WR Apr 2019, 9.2 @ 168 mph 1/4 Mile Manual World Record , 3.15 60-130 mph , 2.72 100-150 mph , 1400whp E85
996TT SpoolBus - 204.6 mph 1/2 Mile 996TT WR Aug 2018, 9.5 @ 154 mph, 3.23 60-130 mph, 2.5 100-150 mph Manual Porsche World Record, 1400whp E85
997TT SlowBerry - 205.0 mph 1/2 Mile WR Nov 2018, 9.7 @ 170 mph 1/4 Mile , 3.2 60-130 mph , 2.4 100-150 mph , 1420whp E85
ESMOTOR | DO88 | TPC DSC | SYVECS | COBB | IPD | KLINE | XONA | AMS | ID | ERP | SACHS | TURBOSMART | CSF | DODSON |
#80
03-23-2016, 01:05 PM
Registered User
Join Date: Feb 2011
Location: Lewisville, NC
Posts: 1,075
Rep Power: 108
Tunes don't change, hardware does. Of course we've never seen the 550whp dyno chart.
Curious if OP is running the same octane fuel as the original dyno run?
Later, Steve
Curious if OP is running the same octane fuel as the original dyno run?
Later, Steve
#83
03-23-2016, 01:53 PM
You need to do lambda bank 1 and 2, boost pressure sensor, injector time, ignition angle, engine load and rpm.
#84
03-25-2016, 05:18 AM
Join Date: Nov 2015
Location: Bellevue
Age: 37
Posts: 95
Rep Power: 17
Have new logs, was unable to post earlier said token had expired so created a new thread....
Does anyone know how to delete a thread.
Did pulls in 3rd gear was able to hit 1.2bar of boost for a second then it dropped to 1.1 bar then 1.0bar...
Does anyone know how to delete a thread.
Did pulls in 3rd gear was able to hit 1.2bar of boost for a second then it dropped to 1.1 bar then 1.0bar...
Last edited by nlcxmoses; 03-25-2016 at 05:20 AM.
#85
03-25-2016, 06:56 AM
why are you only logging to approx 5000 rpm?
Last edited by 32krazy!; 03-25-2016 at 06:59 AM.
#86
03-25-2016, 07:19 AM
Originally Posted by 32krazy!
pm gt3chuck the moderator. cant delete threads but he can hide it
why are you only logging to approx 5000 rpm?
why are you only logging to approx 5000 rpm?
#88
04-02-2016, 11:09 AM
Join Date: Nov 2015
Location: Bellevue
Age: 37
Posts: 95
Rep Power: 17
Finally was able to check for boost leaks fixed majority of them, was unable to fix the one that sounded like it was coming from the plenum. Checking my n75 valve today to figure out if it still works Todd told me this could be causing the advanced timing and also the boost spike.
Last edited by nlcxmoses; 04-02-2016 at 11:11 AM.
#89
04-02-2016, 11:31 AM
I knew you had an issue and if its the plenum thats your main isssue. Once that is fixed you will see a huge difference.
#90
04-02-2016, 11:51 AM
Join Date: Nov 2015
Location: Bellevue
Age: 37
Posts: 95
Rep Power: 17
I took a picture of my turbo/waste gate actuator not sure if they need to be replaced? Is it ok for the waste gate actuator to look like this?
Last edited by nlcxmoses; 04-02-2016 at 11:55 AM.