05-17-2021, 06:03 PM | #1 |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
|
consensus on aftermarket LT4 lids?
I know for a while there was a good uptick in aftermarket vendors coming out with lids besides Nitrous Express. Have any actually been *independently* tested to see if they make the gains they claim?
I was looking to port my stock blower come fall and was debating on going with an aftermarket lid or not. I also wonder why the lids aren't taller, of if that would run into a hood clearance issue or just wouldn't do anything. |
05-17-2021, 06:12 PM | #2 |
Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019
Location: Jax/Palatka FL
Posts: 1,090
|
In one word. Worthless
__________________
|
05-17-2021, 06:21 PM | #3 |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
|
|
05-17-2021, 07:49 PM | #4 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,050
|
|
05-17-2021, 08:45 PM | #5 | |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,531
|
Quote:
__________________
'20 ZL1 1LE A10,
OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next. |
|
05-17-2021, 09:12 PM | #6 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
|
blower whine is a bit louder but not worth the $ unless you want to use the ports for meth...cosmetic reasons also I suppose
__________________
'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
05-17-2021, 09:14 PM | #7 |
Drives: 2017 Camero ZL1 Join Date: Nov 2015
Location: Texas
Posts: 130
|
OEM ZL1 has the tallest lid hence the consensus of aftermarket lids being worthless. Don't waste your money.
__________________
2017 ZL1 A10
Dyno/Quarter Mile/Dragy 9.71@141.2 MPH so far. 2007 Z06 H/C/I/E Half Mile - 169 MPH. Sold. |
05-17-2021, 09:38 PM | #8 |
Oh Oh it's Friday Night!
Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018
Location: Walton Woods
Posts: 1,061
|
A bit louder blower whine. Otherwise, expensive bling.
__________________
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
Four that wanna own me Two that wanna stone me One says she's a friend of mine... |
05-17-2021, 11:20 PM | #9 |
Drives: '86 IROC-Z '18 ZL1 Join Date: Jul 2019
Location: Arizona
Posts: 731
|
I guess as a spin-off question, is it even worth removing that metal rectangle that's inside the lid?
|
05-18-2021, 05:56 AM | #10 |
Coupe Newbie
Drives: 2017 ZL1, 2021 Corvette Convertible Join Date: Jul 2011
Location: Columbus, Ohio
Posts: 3,271
|
People have said you hear more blower whine with it removed. There's no performance gain.
__________________
|
05-18-2021, 07:22 AM | #11 | |||
Drives: 2017 Silverado/2017 ZL1 Join Date: Aug 2019
Location: Jax/Palatka FL
Posts: 1,090
|
Quote:
The video comparison below is hard to tell the difference but its there. (just for full disclosure the Rotofab and removing that plate happened at the same time.)
__________________
|
|||
|
|
Post Reply
|
Thread Tools | |
|
|