What did you do with your Z today V (ON TOPIC DISCUSSION ONLY)

Leingod · 11-09-2020, 08:28 AM

POS threw some code so I threw it into the garage for winter and will look at it next year.

JARblue · 11-09-2020, 10:16 AM

I drove it to work

Hope it doesn't rain because it doesn't have any windshield wipers installed right now

Also spent some time the past few days trying to figure out a noise. Fairly certain it is the exhaust making the noise. Hope to data log a little bit this week to send to Seb for a retune

redondoaveb · 11-09-2020, 10:28 AM

Quote:

Originally Posted by BettyZ

Thanks brolo. I've driven this skank over 4k miles since all this started. Failed 2 tests. After you fail the third you have to make an appt. And I can't re-register the Z until I pass.

So I'm going back in for a 3rd try and this time I'm going to have a nice, calm, chakra-aligning conversation with the 'inspector' - Chicago-style.

Lipstick and kneepads?

BettyZ · 11-09-2020, 10:50 AM

Quote:

Originally Posted by redondoaveb

Lipstick and kneepads?

Have a spare set?

BettyZ · 11-09-2020, 10:51 AM

Quote:

Originally Posted by JARblue

I drove it to work

Hope it doesn't rain because it doesn't have any windshield wipers installed right now

Also spent some time the past few days trying to figure out a noise. Fairly certain it is the exhaust making the noise. Hope to data log a little bit this week to send to Seb for a retune

Does the noise sound like.. exhaust?

redondoaveb · 11-09-2020, 11:13 AM

Quote:

Originally Posted by BettyZ

Have a spare set?

Do you need lipstick too, or are you ok there?

JARblue · 11-09-2020, 11:39 AM

Quote:

Originally Posted by BettyZ

Does the noise sound like.. exhaust?

Nope. It almost sounds like the damn throwout bearing (which is brand new)

It happens around 2.5K RPMs. Can be engine braking in gear. Can be stopped in neutral and give it the right amount of throttle to make the noise. It happens briefly during gear shifts, too. Would be annoying except for racecar! Plus during the gear shifts it kinda sounds like a blowoff valve for my poser turbo

abm89 · 11-09-2020, 01:54 PM

Quote:

Originally Posted by JARblue

Nope. It almost sounds like the damn throwout bearing (which is brand new)

It happens around 2.5K RPMs. Can be engine braking in gear. Can be stopped in neutral and give it the right amount of throttle to make the noise. It happens briefly during gear shifts, too. Would be annoying except for racecar! Plus during the gear shifts it kinda sounds like a blowoff valve for my poser turbo

That sounds like good old test pipe hiss lol

abm89 · 11-09-2020, 03:27 PM

Welp, Smoke test saw leaking out of the passenger side exhaust, something is up with that side of the valve-train or cylinders. I did notice that I've always had a light oil haze on one side vs the other in the past when cleaning the lower manifold so that may not be the leaning issue (I'm never burning a ton of oil between changes). He's gonna check the fuel pressure to see if that may be it.

Rusty · 11-09-2020, 03:41 PM

Quote:

Originally Posted by abm89

Welp, Smoke test saw leaking out of the passenger side exhaust, something is up with that side of the valve-train or cylinders. I did notice that I've always had a light oil haze on one side vs the other in the past when cleaning the lower manifold so that may not be the leaning issue (I'm never burning a ton of oil between changes). He's gonna check the fuel pressure to see if that may be it.

When they tested it. The engine may have one cylinder at valve over lap. Where the intake and exhaust valves are both open. Crank the engine over and do it again.

abm89 · 11-09-2020, 03:44 PM

Quote:

Originally Posted by Rusty

When they tested it. The engine may have one cylinder at valve over lap. Where the intake and exhaust valves are both open. Crank the engine over and do it again.

That's what i'm thinking. with the frequency of my oil change intervals (and checking the dipstick on fillups, i doubt this IS a problem. I'm gonna let him test the fuel pressure and FPD and get back to me. we did confirm that my connections and hoses are all not leaking so that is a good thing. If the fuel pressure comes back ok, ill look into getting the injectors cleaned/replaced. Pulling the plugs should tell me which ones are acting up, unless it's all of them lol.

JARblue · 11-09-2020, 05:32 PM

Quote:

Originally Posted by abm89

That sounds like good old test pipe hiss lol

Yup. I just haven't really heard it like that in a Z before. I'm running FI test pipes with non-resonated FI exhaust with CF cans. I wonder what FP's straight pipes sound like.

Flacid, buy a new Z and sell me your axle-back straight pipes so I can test it out lol

abm89 · 11-12-2020, 01:38 PM

Talked to the shop today. It sounds like I just need a retune. Fuel pressure was tested at 55 psi, so Kevin is gonna swap out my motor mounts and I'll pick it up sometime next week.

I'm just glad nothing catastrophic is wrong with the car. I'll probably throw some new injectors in and get it retuned.

Leingod · 11-12-2020, 02:04 PM

Quote:

Originally Posted by JARblue

Yup. I just haven't really heard it like that in a Z before. I'm running FI test pipes with non-resonated FI exhaust with CF cans. I wonder what FP's straight pipes sound like.

Flacid, buy a new Z and sell me your axle-back straight pipes so I can test it out lol

When you drove mine, you didn't hear the hiss?

JARblue · 11-12-2020, 09:13 PM

Quote:

Originally Posted by Leingod

When you drove mine, you didn't hear the hiss?

Sure did. It's not even remotely the same. I'll do a video of it one of these years.

11-09-2020, 08:28 AM	#5086 (permalink)
Leingod A True Z Fanatic Join Date: Mar 2015 Location: Some Place Cold Posts: 16,060 Drives: In Circles Rep Power: 2684396	POS threw some code so I threw it into the garage for winter and will look at it next year. JARblue, Hotrodz, sx moneypit and 2 others like this. __________________ I AM FLOOF! SOMEBODY FLOOF MY HORN!! ALL HAIL THE FLOOF!!I JUST FLOOFED ON THE FLOOR

11-09-2020, 10:16 AM	#5087 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	I drove it to work Hope it doesn't rain because it doesn't have any windshield wipers installed right now Also spent some time the past few days trying to figure out a noise. Fairly certain it is the exhaust making the noise. Hope to data log a little bit this week to send to Seb for a retune Hotrodz, madwi, sx moneypit and 2 others like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

11-09-2020, 03:27 PM	#5094 (permalink)
abm89 A True Z Fanatic Join Date: Feb 2013 Location: Austin, Texas Posts: 1,382 Drives: 11 370Z \| 24 EL450 Rep Power: 64763	Welp, Smoke test saw leaking out of the passenger side exhaust, something is up with that side of the valve-train or cylinders. I did notice that I've always had a light oil haze on one side vs the other in the past when cleaning the lower manifold so that may not be the leaning issue (I'm never burning a ton of oil between changes). He's gonna check the fuel pressure to see if that may be it. JARblue likes this. __________________ Complete Parts List: https://github.com/abm89/ztouge-build

11-12-2020, 01:38 PM	#5098 (permalink)
abm89 A True Z Fanatic Join Date: Feb 2013 Location: Austin, Texas Posts: 1,382 Drives: 11 370Z \| 24 EL450 Rep Power: 64763	Talked to the shop today. It sounds like I just need a retune. Fuel pressure was tested at 55 psi, so Kevin is gonna swap out my motor mounts and I'll pick it up sometime next week. I'm just glad nothing catastrophic is wrong with the car. I'll probably throw some new injectors in and get it retuned. JARblue, Hotrodz and redondoaveb like this. __________________ Complete Parts List: https://github.com/abm89/ztouge-build

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[MAZOC] Official "Off-Topic" Discussion Thread	m4a1mustang	MAZOC	6670	09-06-2018 08:21 PM
What did you do with your Z today VI (ON TOPIC DISCUSSION ONLY)	AK370Z	Nissan 370Z General Discussions	10007	06-08-2017 10:48 AM
The New "What did you do with your Z today" (with off topic replies) XVIV	eastwest2300	The Lounge (Off Topic)	10005	09-11-2015 09:57 AM
What did you do with your Z today V (ON TOPIC DISCUSSION ONLY)	AK370Z	Nissan 370Z General Discussions	10148	06-19-2014 09:20 PM
The New "What did you do with your Z today" (with off topic replies) VIII	JARblue	The Lounge (Off Topic)	10016	11-10-2013 12:21 PM