Power seems low - Page 2

20181le · 08-22-2018, 10:38 PM

My experience is most gm stuff including the 6th gen is sensitive to heat. Do you know you IATs

Artos · 08-23-2018, 12:17 AM

Quote:

Originally Posted by Markoz28

Laferia/Harlingen

Where you at?

McAllen...I've only seen one other LT4 Z & it was another C6 member here with a 1LE who invited me to a coffee / car deal. Looks like we have a matching pair.

You ever get to the mid-upper??

Markoz28 · 08-23-2018, 06:32 AM

Quote:

Originally Posted by Artos

McAllen...I've only seen one other LT4 Z & it was another C6 member here with a 1LE who invited me to a coffee / car deal. Looks like we have a matching pair.

You ever get to the mid-upper??

PM sent

barnesbr · 08-23-2018, 07:09 PM

I would really like to replace the supercharger lid gaskets (part #23642744) but everywhere I look online says discontinued. Anyone know how to get some?

BMWM.D. · 08-23-2018, 07:32 PM

Quote:

Originally Posted by barnesbr

I would really like to replace the supercharger lid gaskets (part #23642744) but everywhere I look online says discontinued. Anyone know how to get some?

I’d probably get one through your local dealer. I’ve ran into that stuff with online GM parts catalogs. There’s no way they’ve completely discontinued a part that goes on engines that are still in production.

Have you considered an intercooler pump cavitation (air in system) issue? It’s happened to a few members around here.

barnesbr · 08-23-2018, 07:39 PM

Quote:

Originally Posted by BMWM.D.

I’d probably get one through your local dealer. I’ve ran into that stuff with online GM parts catalogs. There’s no way they’ve completely discontinued a part that goes on engines that are still in production.

Have you considered an intercooler pump cavitation (air in system) issue? It’s happened to a few members around here.

I haven’t considered that. I will read the threads. I did run the OBD scanner today and no codes were present. Didn’t notice anything odd in the data but I don’t know what all of it means either.

Biscuit.fr · 08-23-2018, 08:29 PM

May consider the intercoller cavitation pump....
2 topics about that recently.
I ordered my extra tank and will mod that circuit soon to make sure I have no air!

TheRedhead · 08-25-2018, 09:15 AM

So, here's a quick story.

I had my 2014 Mustang GT with a VMP kit on it racing in October at FL2K. Temps were over 90 degrees that weekend, and the car was running 11.1 consistently. That's not really a good place to be when you're in the 10.5 index class.

The next weekend, I went out to BMP and the temps were about 10 degrees cooler. The car ran a 10.6 on the shakedown pass. Same everything.

Heat kills power, ESPECIALLY boosted cars.

It all depends on the DA really, and right now, the DA is atrocious in Tampa.

msawyer110 · 08-26-2018, 12:07 PM

Putting that k&n in is kinda a bad idea. Lots of research and lab testing proves they let in over 10x the dirt as a stock filter, but once they clog they flpw 6-8x less than a clogged paper filter.

msawyer110 · 08-26-2018, 12:11 PM

What i have seen.

barnesbr · 08-26-2018, 08:39 PM

Quote:

Originally Posted by msawyer110

Putting that k&n in is kinda a bad idea. Lots of research and lab testing proves they let in over 10x the dirt as a stock filter, but once they clog they flpw 6-8x less than a clogged paper filter.

Stock filter is back in. These cars seem really sensitive to changes. I’m convinced to stay stock now. When my warranty is up and I have $4-5k to blow I’ll do a little 50-100hp build.

LS3 Machine · 08-26-2018, 08:56 PM

It’s pretty hot in Florida. Most of the gm v8s lose up to 50 or so HP on the stock tune on really hot days. People call the tables in the tune that high temp days lead to the “heat soak” tables. With a tune they can safely be made not quite so aggressive, but never eliminated (for safety of your engine). So it’s possible that your car is just a bit heat soaked. There is also something that seems to happen to most guys in the performance car world. You get “used to” the high horsepower. Yup, even 650. Then you upgrade... and get used to that.... it’s a never ending circle of money and speed.

bobby35ny · 08-26-2018, 10:28 PM

Living here in South FL, you might also know it as the SURFACE OF THE SUN!!
LOL
I did a little experiment on my own a few months back on a piece of paper, nothing scientific at all.
I wrote down the outside temps when I felt the car ran really good by the seat of my pants. Keep in mind temps are over 90+ almost daily 9 months out of the year.
All my writings indicated anything OVER 83 degrees the car ran like a dog. 83 and below the car runs really good.

08-25-2018, 09:15 AM	#22
TheRedhead Drives: 2018 Red Hot ZL1 1LE Join Date: May 2017 Location: Tampa, FL Posts: 562	So, here's a quick story. I had my 2014 Mustang GT with a VMP kit on it racing in October at FL2K. Temps were over 90 degrees that weekend, and the car was running 11.1 consistently. That's not really a good place to be when you're in the 10.5 index class. The next weekend, I went out to BMP and the temps were about 10 degrees cooler. The car ran a 10.6 on the shakedown pass. Same everything. Heat kills power, ESPECIALLY boosted cars. It all depends on the DA really, and right now, the DA is atrocious in Tampa. __________________ 2018 RED HOT ZL1-1LE: Nav,PDR,Floor Mats Built!

08-26-2018, 12:11 PM	#24
msawyer110 Drives: 2017 ZL1 Join Date: Apr 2017 Location: DFW Posts: 157	What i have seen. Attached Images __________________ 2017 ZL1 Hyper Blue Metallic M6 1996 Z28 Polo Green F1-D Procharged 383- 490rwhp

08-26-2018, 10:28 PM	#27
bobby35ny Drives: 18 ZL1 A10 Join Date: Nov 2008 Location: South East, FL Posts: 3,024	Living here in South FL, you might also know it as the SURFACE OF THE SUN!! LOL I did a little experiment on my own a few months back on a piece of paper, nothing scientific at all. I wrote down the outside temps when I felt the car ran really good by the seat of my pants. Keep in mind temps are over 90+ almost daily 9 months out of the year. All my writings indicated anything OVER 83 degrees the car ran like a dog. 83 and below the car runs really good. __________________ 2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6 ZL1::J-E-T-S JETS JETS JETS

08-22-2018, 10:38 PM	#15
20181le Drives: 2019 ZL1 1LE Coming Soon! Join Date: Jun 2018 Location: Wrenching on car! Posts: 49	My experience is most gm stuff including the 6th gen is sensitive to heat. Do you know you IATs

08-23-2018, 07:09 PM	#18
barnesbr Drives: 2018 ZL1 10 spd Join Date: Jul 2011 Location: Tampa, FL Posts: 87 View My Garage	I would really like to replace the supercharger lid gaskets (part #23642744) but everywhere I look online says discontinued. Anyone know how to get some?

08-23-2018, 08:29 PM	#21
Biscuit.fr Drives: Red hot ZL1 A10 2017 Join Date: Nov 2016 Location: MS Back to France (29) Posts: 804	May consider the intercoller cavitation pump.... 2 topics about that recently. I ordered my extra tank and will mod that circuit soon to make sure I have no air!

08-26-2018, 12:07 PM	#23
msawyer110 Drives: 2017 ZL1 Join Date: Apr 2017 Location: DFW Posts: 157	Putting that k&n in is kinda a bad idea. Lots of research and lab testing proves they let in over 10x the dirt as a stock filter, but once they clog they flpw 6-8x less than a clogged paper filter. __________________ 2017 ZL1 Hyper Blue Metallic M6 1996 Z28 Polo Green F1-D Procharged 383- 490rwhp

08-26-2018, 08:56 PM	#26
LS3 Machine Drives: 2017 Colorado ZR2, 2018 ZL1 Join Date: Jun 2009 Location: West Palm Beach Posts: 135	It’s pretty hot in Florida. Most of the gm v8s lose up to 50 or so HP on the stock tune on really hot days. People call the tables in the tune that high temp days lead to the “heat soak” tables. With a tune they can safely be made not quite so aggressive, but never eliminated (for safety of your engine). So it’s possible that your car is just a bit heat soaked. There is also something that seems to happen to most guys in the performance car world. You get “used to” the high horsepower. Yup, even 650. Then you upgrade... and get used to that.... it’s a never ending circle of money and speed.

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