Is the LT1 underrated?
Thread Starter
Burning Brakes
Joined: Oct 2000
Posts: 1,183
Likes: 0
From: Tulsa OK
Is the LT1 underrated?
I see that stock LT1 dyno around 265-275rwhp. That's 312-324hp with 15% loss and 331-344hp with 20% loss :eek: Are they underrated or do they lose a lot less power thru the drivetrain than most other cars :confused:
Drifting
Joined: Oct 1999
Posts: 1,338
Likes: 0
From: Raleigh, NC
NC Events Coordinator
Re: Is the LT1 underrated? (jay17)
Yeah, mine really surprised me. I did some quick calc's on my tq #'s. I would have to have only ~ 3.x% loss to get the GM claimed crank tq. I think they are **slightly** underrated.
brian
brian
Team Owner
Joined: Nov 1999
Posts: 32,782
Likes: 11
From: Former NCM Drag Racing coordinator, National director Corvette Challenge Spring Hill, Tennessee: Whiting, New Jersey
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Is the LT1 underrated? (jay17)
These are real good motors :)
Safety Car
Joined: Mar 2000
Posts: 3,620
Likes: 2
From: Hillsboro OR
Re: Is the LT1 underrated? (jay17)
I think the difference you seeing is because of the way the motors are rated. Factory HP is rated using SAE test standard. That is supposed to be with all accesories operating at a specific temp, air pressure and humidity. I don't know what they mean by all accessories (alt, waterpump, air pump, ac, ps ?????). I am guessing that ac and ps are not included. The 92 and up LT1 is supposed to make more HP than the original LT1 produced in 1970.
Elite Torch Red Member
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Re: Is the LT1 underrated? (Zora)
I'll 4th it.
Race Director
Joined: Mar 2001
Posts: 14,480
Likes: 132
From: PA
Re: Is the LT1 underrated? (Mr Mojo)
I think the LT1 is definitely underrated. Mr. Mojo and John Mackey are two guys that have proved what a well driven LT1 can do. The problem is, most guys can't drive the way they do and never actually see their potential. They're awesome motors in my opinion.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
Re: Is the LT1 underrated? (AquaMetallic94LT1)
remember that in 1972, SAE changed their calculations for hp...
but the LT1 is one strong motor... I suspect the LT1 is closer to 320hp and the LT4 is closer to 350 -- or more!!!
I have not been disappointed with the choice I made to get an LT1 powered vette, versus an L98... the opti is such a minor issue, that it does not ruin such a fine powerplant.
but the LT1 is one strong motor... I suspect the LT1 is closer to 320hp and the LT4 is closer to 350 -- or more!!!
I have not been disappointed with the choice I made to get an LT1 powered vette, versus an L98... the opti is such a minor issue, that it does not ruin such a fine powerplant.
