04-24-2022, 08:47 AM | #1 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,813
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Vibration/ Chattering Down Track
Did the same thing two weeks ago. so I changed all tires but still does it. "Chattering " is the best description, almost like it's losing traction.
TC and Stabilitrak were off. Will make hits this morning with Stabilitrak on. Ideas?
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
04-24-2022, 09:30 AM | #2 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,455
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1000+ hp, in a rock hard chassis, on the street while using a stiff sidewall road race tire?
i rode in a 950 whp supra that was doing this at 100+ mph. we thought it was wheel hop.
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2016+ camaro: everyone’s first car
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04-24-2022, 09:51 AM | #3 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,813
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Quote:
Also, where could I see this vibration in HPT data?
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
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04-24-2022, 09:53 AM | #4 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,953
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Is it under hard acceleration only or all the time even when just cruising at hwy speeds?
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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 |
04-24-2022, 09:58 AM | #5 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,813
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Quote:
It shakes so badly down track (prepped track) you think of aborting the run.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
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04-24-2022, 10:01 AM | #6 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,455
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is the track bumpy?
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2016+ camaro: everyone’s first car
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04-24-2022, 10:03 AM | #7 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,813
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It's the Mile High Nationals track and I didn't hear anyone else complain, so It seems unlikely. I'm going back up at 1000 this morning to make a few hits, maybe with more air pressure.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
04-24-2022, 10:10 AM | #8 |
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,455
|
that was my next question. what does that beast run? i missed your timeslips.
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2016+ camaro: everyone’s first car
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04-24-2022, 01:19 PM | #9 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,813
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Quote:
10.927 129.78 I removed Antigravity and put the stock battery back in it, and increased tire pressures rear and front. No vibration. It's still a slug on the hit/ 2nd gear. I suppose I need to try max rpm foot braking or 1st gear launch. Per NHRA factors, 10.92 at 6500 DA corrects to 10.04 at 0-1000 ft. But this car only has six runs total, and only three w/o electrical and air issues. It lost all power yesterday in the pits. I think it'll be a 10.50s car up here.
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'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. Last edited by JSH; 04-24-2022 at 01:30 PM. |
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