05-05-2022, 09:59 AM | #1 |
Drives: 2019 ZL1 Join Date: Oct 2020
Location: Colorado Springs
Posts: 164
|
LT5 vs LT4 (differences and similarities)
Hey all, would you guys be so kind as to educate me in the differences and similarities between the LT5 (ZR1) and LT4 (ZL1/Z06).
And you guys can skip the fact that the blower is different lmao. I'm just wondering how different the motors really are aside from that. |
05-05-2022, 10:10 AM | #2 | |
Drives: 2019 ZL1 Join Date: Mar 2019
Location: NJ
Posts: 1,534
|
Quote:
__________________
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 |
|
05-05-2022, 10:11 AM | #3 | |
Drives: ZL1 Join Date: Oct 2021
Location: Houston
Posts: 136
|
Quote:
|
|
05-05-2022, 10:16 AM | #4 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,050
|
|
05-05-2022, 10:23 AM | #5 |
Drives: Chevy Camaro ZLE Join Date: Mar 2022
Location: Dallas, TX
Posts: 112
|
Bigger blower, better internals, port injection.
|
05-05-2022, 10:31 AM | #6 |
Drives: ZL1 Join Date: Oct 2021
Location: Houston
Posts: 136
|
damn i didnt know it had port injection, imagine if they put this motor in zl1 (IMO they should have to really end this baddest muscle car debate)
|
05-05-2022, 10:39 AM | #7 |
Banned
Drives: Faster than yours Join Date: Nov 2021
Location: Earth
Posts: 288
|
I have a feeling the ZL1 1LE already outlapped the Z06 on the 'ring even if GM won't admit to it. Given that the ZLE chassis responds to power far better than the ZR1, they're not going to purposely build something that much faster than their current halo Corvette.
|
05-05-2022, 10:44 AM | #8 | |
Drives: ZL1 Join Date: Oct 2021
Location: Houston
Posts: 136
|
Quote:
|
|
05-05-2022, 10:45 AM | #9 |
Drives: 2021 Camaro ZL1 A10 Join Date: Nov 2018
Location: Idaho
Posts: 1,198
|
Besides the larger and more efficient supercharger (2.65L 14 psi boost and 170 deg rotors vs 1.74L 9.4 psi and 160 deg rotors):
Improved intercoolers and higher temperature Delta (140 deg F temperature decrease vs. 130 deg F in the LT4) Direct + port injection (LT4 has direct only, but both direct systems run at 2,900 psi) Stronger crankshaft (LT4 crank is also stronger than LT1 crank) + improved bearings Bigger TB (95 mm vs 87 mm) Upgraded pushrod bearing coatings (but the pushrods themselves are LT4 carryovers)
__________________
2021 Camaro ZL1 A10
2022 GR Supra 3.0 Past: 2018 Mustang GT Premium w/ PP1, MR, and A10 2007 MazdaSpeed3 1995 Pontiac Trans Am 1987 Camaro Z28 |
05-05-2022, 10:55 AM | #10 | |
Drives: 2019 ZL1 Join Date: Oct 2020
Location: Colorado Springs
Posts: 164
|
Quote:
|
|
05-05-2022, 01:28 PM | #11 | |
Account Suspended
Drives: 2022 ZL1 M6/Nissan Leaf Join Date: May 2016
Location: Dallas
Posts: 1,138
|
Quote:
What's not to get? GM doesn't want to have their most expensive Corvette outperformed by the Camaro. Would you buy the most expensive Corvette if you knew the most expensive Camaro beats it around the track? |
|
05-05-2022, 02:22 PM | #12 |
Drives: 2008 Pontiac G8 GT, Shelby GT500 Join Date: Mar 2011
Location: Long Island, New York
Posts: 1,376
|
Most notable difference I think is the LT5 uses port injection and direct injection, the LT4 uses only direct injection.
Has carbon build up on the intake valves been a problem for anyone with the LT4? Haven't heard any complaints about it and it's been around a while now. Different customers. Some people want 4 seats, some are okay with two. Most of those that want a Vette, wouldn't consider a Camaro. No matter what it had in it. The LT5 in the ZL1 would have put the ZL1 with, if not ahead of the GT500 and Redeye as far as acceleration goes. Unfortunately, it's not gonna happen. |
05-05-2022, 02:44 PM | #13 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,934
|
Unfortunately, the LT5 engine has even been discontinued for aftermarket purchase too.
|
05-05-2022, 02:56 PM | #14 |
Drives: Chevy Camaro ZLE Join Date: Mar 2022
Location: Dallas, TX
Posts: 112
|
For a while you could buy a LT5 blower and PI setup through Crawford. Doesn't look like they sell it anymore.
|
|
|
Post Reply
|
Tags |
lt4, lt5, lt5 vs lt4, zl1, zr1 |
Thread Tools | |
|
|