Ls3 427
500/500 through a 3.90 12 bolt is VERY nice. 450ft/lbs at 3k rpms is EXCELLENT. I bet that car drives nice!! Curious what kind of MPGs you get on the freeway. Some will say "who cares?" but I say it's a good indicator of how good the combination and tune are. Either way, that graph is really excellent...nice build. Have you weighed your beast?
Trending Topics
Thread Starter
Staging Lane
Joined: Mar 2007
Posts: 58
Likes: 4
500/500 through a 3.90 12 bolt is VERY nice. 450ft/lbs at 3k rpms is EXCELLENT. I bet that car drives nice!! Curious what kind of MPGs you get on the freeway. Some will say "who cares?" but I say it's a good indicator of how good the combination and tune are. Either way, that graph is really excellent...nice build. Have you weighed your beast?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Numbers seem low to me by a bout 50hp even with a 12 bolt and 3.90. There have been several 416 LS3 block 243 headed cars make 550whp 500wtq with much smaller cams. Guy with a CTS-V made 500 with a 243 headed 416 and a tiny 22x cam. Threads are right here in this section.
However all dynos seem to read a little different. The graph looks impressive...nice tq and carries power well! I bet it runs great. Any plans for a track visit? I am curious to see what it traps.
However all dynos seem to read a little different. The graph looks impressive...nice tq and carries power well! I bet it runs great. Any plans for a track visit? I am curious to see what it traps.
Thread Starter
Staging Lane
Joined: Mar 2007
Posts: 58
Likes: 4
Numbers seem low to me by a bout 50hp even with a 12 bolt and 3.90. There have been several 416 LS3 block 243 headed cars make 550whp 500wtq with much smaller cams. Guy with a CTS-V made 500 with a 243 headed 416 and a tiny 22x cam. Threads are right here in this section.
However all dynos seem to read a little different. The graph looks impressive...nice tq and carries power well! I bet it runs great. Any plans for a track visit? I am curious to see what it traps.
However all dynos seem to read a little different. The graph looks impressive...nice tq and carries power well! I bet it runs great. Any plans for a track visit? I am curious to see what it traps.
Yes you do...I picked up 1mph on my little 346 just removing the maf all together. Recently upgraded to a FTP 98mm lid over the winter...curious to see if it gains any this spring when I get the car back out.
Last edited by kinglt-1; Feb 17, 2017 at 09:50 AM.
Thread Starter
Staging Lane
Joined: Mar 2007
Posts: 58
Likes: 4
I agree those numbers are low. Even without the top end intake, the stock maf is choking it. I bet with that and some bigger headers the cat would pick up a decent amount. That motor is only about fifty who more than my bolt Ellis three did
Nice setup. Definitely has some untapped power left in it. I was really considering going with a LS3 427 or 418 for my new build but decided on a built 347 and 15 psi of boost from a D1SC procharger....I hope I dont regret it over the LS3 stroker.
Id be interested in seeing some track times from your setup.
Id be interested in seeing some track times from your setup.
Thread Starter
Staging Lane
Joined: Mar 2007
Posts: 58
Likes: 4
Nice setup. Definitely has some untapped power left in it. I was really considering going with a LS3 427 or 418 for my new build but decided on a built 347 and 15 psi of boost from a D1SC procharger....I hope I dont regret it over the LS3 stroker.
Id be interested in seeing some track times from your setup.
Id be interested in seeing some track times from your setup.
TECH Veteran
Joined: Sep 2014
Posts: 4,893
Likes: 703
From: Mississippi
