Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

Does this sound right?

Thread Tools
 
Search this Thread
 
Old Sep 4, 2018 | 07:18 PM
  #1  
Jfwyatt1's Avatar
Thread Starter
Teching In
5 Year Member
iTrader: (1)
 
Joined: Sep 2018
Posts: 34
Likes: 4
From: Burnsville nc
Default Does this sound right?

Hello new here anyway I am planning on swapping a ls into a 70 camaro I'm restomodding. I found and bought a wrecked 99 camaro z28 for $1700 with what is supposed to be a relatively fresh 6.0 engine that has been dynoed and tuned. The specs the guy gave me are correct as far as I can tell at this point. It is a low mile lq9 bottom end with an unknown at this time texas speed cam (the guy couldn't find the cam card) it has ported 241 heads ( there is porting I went thru the intake with a micro lab scope) btr springs, kooks long tube headers and ls6 intake. The dyno sheet he had showed 421hp and 404flbs torque. Car has a new monster trans 4l60e with a 3400 stall. Do these dyno numbers sound right the shop that did the work can't verify as they shut down about 6 months ago. I'm new to ls engines and just want another opinion on these numbers the guy seemed straight up and so far what he told me has been correct.

Last edited by Jfwyatt1; Sep 4, 2018 at 07:20 PM. Reason: Misspelled word
Reply
Old Sep 4, 2018 | 07:29 PM
  #2  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Yeah that sounds reasonable but who knows. The thing you need to remember is that dynos vary so need to be taken with a grain of salt. What the car traps doesn't lie. Know what I mean?
Reply
Old Sep 5, 2018 | 08:21 AM
  #3  
Jfwyatt1's Avatar
Thread Starter
Teching In
5 Year Member
iTrader: (1)
 
Joined: Sep 2018
Posts: 34
Likes: 4
From: Burnsville nc
Default

Thanks I wasn't sure on those numbers one of my friends who has been in to ls engines for awhile said the 241 heads are junk and couldn't make that kind of power.
Reply
Old Sep 5, 2018 | 08:36 AM
  #4  
HCI2000SS's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Aug 2012
Posts: 11,137
Likes: 20
From: Howell & Fenton MI
Default

Your friend is wrong. The 241 heads can make some nice power when done right
Reply
Old Sep 5, 2018 | 09:22 AM
  #5  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,301
Likes: 3,625
From: Central Cal.
Default

Originally Posted by Jfwyatt1
……... one of my friends who has been in to ls engines for awhile...…....
Not long enough....

Reply
Old Sep 5, 2018 | 09:37 AM
  #6  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,898
Likes: 255
From: Ft. Wayne, IN
Default

241's are great heads...AI has a 219cc port program that gets them pretty close to worked 243's. They will make 420whp with a baby cam or 460whp with a big cam.
Reply
Old Sep 5, 2018 | 12:04 PM
  #7  
Jfwyatt1's Avatar
Thread Starter
Teching In
5 Year Member
iTrader: (1)
 
Joined: Sep 2018
Posts: 34
Likes: 4
From: Burnsville nc
Default

This is the reason I joined this site I've been getting too much conflicting info from local guys.
Reply




All times are GMT -5. The time now is 08:43 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE