Yeah, sell it. Buy someone else's problem. That could be easier to fix.
Yeah, sell it. Buy someone else's problem. That could be easier to fix.
Rest in Peace Charlie!
Sold
Just a GT
Originally Posted by RichsGreyGT
I hadn't considered that. That's actually quite reasonable. :-)
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
Wire traced the fuel injector and coil for cylinder #2. No issues, no shorts that I could find.
Slightly raised idle fuel pressure.
Replaced bank2 header gasket.
Visually watched valve train during crank to see all rockers/springs/valves moving. They were.
No change. Bank2 climbs lean at idle.
Last edited by STL_G8GT; 05-20-2018 at 05:23 AM.
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
Something in the tune?
09 G8 GT in Stryker Blue
Mods
Go: Vararam CAI, SLP Headers, Magnaflow 12468 mid-muffler & PM-FL Axlebacks. Tuned by MAC Autosports of Parker, Colorado. FE3 Shocks N Struts.
Show: Little Trees US Flag Vanilla Scented Air Freshener; SLP G8 Firehawk wheels; tinted windows
The Track
Best 1/4: 13.969 @ 102.70 @ Pueblo Motorsports Park, w/ DA of 3921'.
I really don't think so, but that's not my forte. The tuner didn't see anything initially that is jumping out at him, but it's all remote, which is tough.
He suggested maybe swapping the valve springs on that lazy cylinder with ones from another bank. I'm going to give that a shot at some point, but honestly I would think a valve spring issue would show up at higher rpm, not at idle.
I went back and looked at the oldest log I have, from 2013. I had a +5 differential on Bank2 vs Bank1 at idle. I wasn't able to view a log to see if that number climbed over time, however after acceleration or deceleration and then idle (such as at a stop sign), the fuel trims drop to B1:0/B2:+5.
This is consistent with the idle performance today, a +5 differential on Bank2.
Last edited by STL_G8GT; 05-20-2018 at 06:36 AM.
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
Going to do a hot leakdown test, and compression test. Going to check spark strength at 200deg.
Then I'm pulling the blower and heads. Going to replace intake gaskets, lifters, springs (it's time, anyway), and upgrade to the ls9 head gasket.
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
Wait! It's gonna be driving season. Turn the light off and go. Freak.
Rest in Peace Charlie!
Sold
Just a GT
Haha!
Hot leakdown was fine, spark has plenty of strength.
Its all out.
Gutted the cats this afternoon.
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
I see what you're doing. You're trying to get out of working on the property. LOL
Rest in Peace Charlie!
Sold
Just a GT
Wellllllllllllll
got it back together with new gaskets, new injectors, new springs, and new lifters... still drifts. However, now it starts Bank1 @ -3% and Bank2 @ 0% and then at about 16mins through 20 mins Bank1 will go to 1% and Bank2 will climb to 5.5-7%.
It seems that both banks will climb slowly, but bank 2 climbs exponentially more. These trims are significantly better than before, however the drift is still perplexing.
Things that are new:
Blower sealant
Head Gaskets
Exhaust Manifold Gaskets
Injectors
Springs
o2 Sensors
removed Cats
Inspected, no faults found:
Pushrods
Valves
rockers
piston tops
Lifter trays
Spark plug wires
Ignition Coils
Wiring and both engine grounds
Exhaust clamps/system
Tested Spark distance @ temp and @ startup, both fine
Fuel crossover @ blower
If I think about this a bit differently, because both banks technically richen up, it really could only be bottom of the engine (extremely doubtful), a fuel pump issue (as fuel rails get hot and/or fuel pump heats up), or a ridiculous wiring issue that is temperature specific (again, doubtful).
Oh well, at least she's got new springs in her!
2009 PBM G8 GT
Pat G 218/226 & TSP Dual 660s, ARP Bits, DSteck Tuned, Magnacharger Chrome 2300 1:1, RCR Ported/Polished TB, Blower, & L92 Heads w/ LS3 intake valves, Smith Brothers Trunion Bushing Kit, ARH 1 7/8 Magnaflow MidMuff/Solo Axlebacks, RotoFab, VaporWorx PWM 1:1 fuel system, ID1050x injectors
Mike Norris Motorsports Catchcan, AEM 30-4100, JHP Boost/Fuel Gauge Pod
TSW Nurburgring Matte Gray 18" w/Nitto 555 & 555R, Satin Black SS Brembo Fronts, BMR Trailing Arms, Pedders Sway Bars, Whiteline Bushings
Gloss Black Valve Covers, 6k HID, V6 Handles, Interior/License Plate LEDs, Debadged, Holden Black Trim, Polk Dxi, GXP diffusor, a few bits from Crazy Paul
RIP Charlie - GRRRR8Originally Posted by TonyKarter
Anyone who has ever worked on a car has been in your position, and sitting cross-legged on a concrete floor with a dim shop light is its own kind of hell... Chalk it up as one of the rites of passage.
RIP Chris Wells - Panzer Leader
Posting Permissions
Reply With Quote