07-31-2022, 01:53 PM | #1 | |
Drives: ´18 ZL1 A10 Red Hot 😍 Join Date: Jan 2016
Location: Madrid, SPAIN
Posts: 355
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Help with ¿blower? whine at idle - SOLVED!
Hello,
Hope you are well! We are just finishing to install the bolt ons on the car: lower pulley 15%, big gulp, headers catless and x-pipe with stock mufler. Doing the lower work, we changed the oil pump and the two tensioners for the belt. The car did her first miles with the new mods fine, but today started with a very noticeable and annoying whine at idle. Has someone any idea what is the cause of it? Thank you!
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First ZL1 in Spain (Madrid)! Red Hot, A10, PDR, carbon fiber hood & grounds effects...
Last edited by Akura; 08-02-2022 at 05:53 PM. |
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07-31-2022, 03:14 PM | #2 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,936
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Have you checked the clamps on the rotofab? They need to be pretty snug.
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07-31-2022, 03:24 PM | #3 |
Drives: 19 ZL1 Join Date: Jan 2019
Location: Tampa Fl
Posts: 93
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does the sound change with RPM or stay the same?
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07-31-2022, 05:10 PM | #4 |
Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
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That was my guess as well.
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2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm
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08-01-2022, 12:17 AM | #5 | ||
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
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Quote:
Recheck and re-tighten/adjust All fittings and clamps. Mine sounded exactly like this when I forgot to tighten the clamp on the throttle body.
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928rwhp - 93 | 1040rwhp/898rwrq - E65 SAE
LME 377 LT4 Short Block | Magnuson 2650 80mm upper w/13% lower (9.06) | DSX Lid & Valve Covers | CSP Custom Cam w/32% fuel lobe | CID Heads | NW 103mm TB | Roto Fab Big Gulp | CSP 2" Headers w/Green GESI Gen 2 Cats | Borla 3" Full Cat Back w/ S-Type| Mighty Mouse Wild Catch Can| Custom Holley Low side Fuel system| TooHigh PSI Port Injection w/Holley Controller | Forced Inductions Interchiller w/2 gallon fender tank | TK Performance built 10L90 |
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08-01-2022, 01:10 AM | #6 | ||
Drives: Chevrolet Camaro ZL1 Join Date: May 2022
Location: Concordia
Posts: 450
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Quote:
Definitely check the clamps though. Vacuum leaks sometimes sound really weird. Also, you may want to remove the supercharger drive belt if all looks good in the vacuum leaks. There is a chance that you may have a pulley that is seizing.
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2017 Red Hot ZL1 A10 - Apex ARC-8's, 305/ 325 PS4's, DSX 9.06 12% Pulley, NGK HR7 Ruthenium spark plugs, Katech Oil Pump, LME tensioner, DOD delete, Cam, MPI lid, Soler ported 87mm (91mm effective) TB, Granatelli SS plug wires, Cordes LTR reservoir, DMS T-stat housing, Borla X pipe, AFe NPP exhaust, Black Widow Angry Housewife/ Venom 250 mufflers, BMR engine mounts, Banks iDash, Lithium Battery, Course Motorsports phone mount, AEM X- Series, HP Tuners, JMS, E85, 13.6 psi
737 HP/ 779 TQ |
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08-01-2022, 04:49 PM | #7 | |
Drives: ´18 ZL1 A10 Red Hot 😍 Join Date: Jan 2016
Location: Madrid, SPAIN
Posts: 355
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I think the problem is the supercharger boost valve:
What can cause it? Any ideas? Thank you.
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First ZL1 in Spain (Madrid)! Red Hot, A10, PDR, carbon fiber hood & grounds effects...
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08-02-2022, 05:54 PM | #8 | |
Drives: ´18 ZL1 A10 Red Hot 😍 Join Date: Jan 2016
Location: Madrid, SPAIN
Posts: 355
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Finally found it!
No more whine!
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First ZL1 in Spain (Madrid)! Red Hot, A10, PDR, carbon fiber hood & grounds effects...
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08-02-2022, 06:06 PM | #9 |
Account Suspended
Drives: 21 ZL1 Join Date: Feb 2022
Location: South East
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Tb spacer. Why?
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08-02-2022, 06:35 PM | #10 |
Drives: 2017 Focus RS Join Date: Dec 2021
Location: TX
Posts: 63
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Willing to bet they did a larger TB due to big gulp but didn’t port the blower so it’s a reducer
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08-02-2022, 07:07 PM | #11 |
Drives: ´18 ZL1 A10 Red Hot 😍 Join Date: Jan 2016
Location: Madrid, SPAIN
Posts: 355
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Blower will be ported next month, very hard to find in EU someone who will do it (here the cars modded are usually German and Japanese turbos) and finally found it in Portugal, so...
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First ZL1 in Spain (Madrid)! Red Hot, A10, PDR, carbon fiber hood & grounds effects...
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08-02-2022, 07:27 PM | #12 |
08-02-2022, 07:36 PM | #13 | |
Drives: ´18 ZL1 A10 Red Hot 😍 Join Date: Jan 2016
Location: Madrid, SPAIN
Posts: 355
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Quote:
https://veicomer.com/es/portfolio/
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First ZL1 in Spain (Madrid)! Red Hot, A10, PDR, carbon fiber hood & grounds effects...
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