Notices
C5 General General C5 Corvette and C5 Z06 Discussion not covered in Tech

Dyno Numbers

Thread Tools
 
Search this Thread
 
Old Feb 6, 2026 | 03:17 PM
  #1  
C5 FRC's Avatar
C5 FRC
Thread Starter
Intermediate
All Eyes On Me
Liked
Loved
 
Joined: Jun 2024
Posts: 25
Likes: 5
From: Madison, WI
Default Dyno Numbers

Wondering if anyone has the same setup below and can tell me what you made on the dyno. I understand it won’t be the exact same and that there a ton of different factors to consider. Just looking for an expected range.

BTR Stage 2 Cam w/ all valve train upgrades (including trunnion)

ARH Longtubes

Catless X-Pipe

Corsa Extreme

AFE Intake

Stock LS1 heads and intake manifold. Doing the cam next month then finally getting it tuned.
Reply
Old Feb 6, 2026 | 05:14 PM
  #2  
JMG2's Avatar
JMG2
Moderator
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Apr 2002
Posts: 11,764
Likes: 1,360
From: US
Default

I didn't have the exact same setup, but I have a "before" and "after" dyno when I did my super charger. look at the "run #1" curve -- vararram intake, kook headers, I had an x-pipe at the time, z06 cat back, and a tune. Peak was 331 lb*pound/330 hp


Reply
Old Feb 6, 2026 | 05:20 PM
  #3  
Eshoremd's Avatar
Eshoremd
Le Mans Master
Supporting Lifetime
Shutterbug
 
Joined: Sep 2017
Posts: 5,207
Likes: 1,529
From: Pasadena, MD
2023 C5 of the Year Finalist - Modified
Default

Auto or manual?

I'd guess 390 w a manual.
Reply
Old Feb 6, 2026 | 05:24 PM
  #4  
C5 FRC's Avatar
C5 FRC
Thread Starter
Intermediate
All Eyes On Me
Liked
Loved
 
Joined: Jun 2024
Posts: 25
Likes: 5
From: Madison, WI
Default

Originally Posted by JMG2
I didn't have the exact same setup, but I have a "before" and "after" dyno when I did my super charger. look at the "run #1" curve -- vararram intake, kook headers, I had an x-pipe at the time, z06 cat back, and a tune. Peak was 331 lb*pound/330 hp
This is actually really helpful. Appreciate the reply!
Reply
Old Feb 6, 2026 | 07:05 PM
  #5  
USAZR1's Avatar
USAZR1
Race Director
25 Year Member
Community Builder
Liked
Loved
 
Joined: Jan 2000
Posts: 10,347
Likes: 3,380
From: Central TX
C5 of Year Finalist (appearance mods) 2019
Default

Originally Posted by Eshoremd
Auto or manual? I'd guess 390 w a manual.
Car is an FRC so manual.
Reply
Old Feb 6, 2026 | 08:14 PM
  #6  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

I know I'm not answering your question specifically. I've never run that specific combo myself. But I've run a similar spec but with ported heads. A stock FRC will typically dyno between 295 and 310 SAE corrected.I'd estimate 35 to 40 whp for the cam. Between 15 and 20whp for the headers and 5 to 10whp for the intake and backend of the exhaust. So in the range of 350whp to 370whp.

I estimate you'll land around 360 to 365whp SAE corrected.

The stock heads are really holding you back. And the LS1 intake is as well (but not as much without better heads).
Reply
Old Feb 6, 2026 | 08:16 PM
  #7  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by Eshoremd
Auto or manual?

I'd guess 390 w a manual.
Nah, too high. Not without ported heads and an LS6 intake.
Reply
Old Feb 6, 2026 | 08:24 PM
  #8  
C5 FRC's Avatar
C5 FRC
Thread Starter
Intermediate
All Eyes On Me
Liked
Loved
 
Joined: Jun 2024
Posts: 25
Likes: 5
From: Madison, WI
Default

Originally Posted by Johnny Hardcore
I know I'm not answering your question specifically. I've never run that specific combo myself. But I've run a similar spec but with ported heads. A stock FRC will typically dyno between 295 and 310 SAE corrected.I'd estimate 35 to 40 whp for the cam. Between 15 and 20whp for the headers and 5 to 10whp for the intake and backend of the exhaust. So in the range of 350whp to 370whp.

I estimate you'll land around 360 to 365whp SAE corrected.

The stock heads are really holding you back. And the LS1 intake is as well (but not as much without better heads).
Appreciate your insight on this and would agree. Better heads and manifold will be upgraded down the road, just not in the budget this time around.

I was hoping for at least 370whp, so will keep my fingers crossed!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Feb 6, 2026 | 08:37 PM
  #9  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by C5 FRC
Appreciate your insight on this and would agree. Better heads and manifold will be upgraded down the road, just not in the budget this time around.

I was hoping for at least 370whp, so will keep my fingers crossed!
I hear you on that. The budget can never be big enough.

You may get lucky and have one of the 310whp baseline cars. And you can also get lucky and put up results that are on the high end of the scale. Which will be very satisfying and land you in that 370 to 375 range. I hope you do even better than that. Good luck!

Reply
Old Feb 6, 2026 | 09:05 PM
  #10  
CamSC5Z's Avatar
CamSC5Z
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 172
Likes: 156
From: Fishers, In
Default

I'm close, but have 243 heads. I don't have a cai or anything, just headers/x/BTR Stage 2v2. 414 / 386 std on a Dynojet.
Reply
Old Feb 6, 2026 | 09:17 PM
  #11  
vette4fl's Avatar
vette4fl
Le Mans Master
Community Influencer
Photoriffic
Shutterbug
Community Favorite
 
Joined: Feb 2021
Posts: 6,460
Likes: 4,305
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
Default

Originally Posted by C5 FRC
Appreciate your insight on this and would agree. Better heads and manifold will be upgraded down the road, just not in the budget this time around.

I was hoping for at least 370whp, so will keep my fingers crossed!

With stock exhaust, stock 243 heads, 218/226 587/587 114+3 cam, dynoed at 366whp, 370 tq.

I just got some headers to try. Maybe 390-ish?
Reply
Old Feb 7, 2026 | 12:48 AM
  #12  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by CamSC5Z
I'm close, but have 243 heads. I don't have a cai or anything, just headers/x/BTR Stage 2v2. 414 / 386 std on a Dynojet.
Good example with headers and the same cam. SAE corrected this car is about 393whp (which SAE is more of a reality than STD. SAE dyno results are usually about 5% less than STD). The as cast 243 heads are better for about 20 to 25whp over as cast 853s. Which lands between 265 to 270whp.
Reply
Old Feb 7, 2026 | 12:56 AM
  #13  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by vette4fl
With stock exhaust, stock 243 heads, 218/226 587/587 114+3 cam, dynoed at 366whp, 370 tq.

I just got some headers to try. Maybe 390-ish?
i think your estimate is really close. I'd guess between 385 to 390whp with the headers. Which is really fun with the 4.10s (and the 4.10s drop whp results slightly on the dyno).
Reply
Old Feb 7, 2026 | 02:10 PM
  #14  
CamSC5Z's Avatar
CamSC5Z
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 172
Likes: 156
From: Fishers, In
Default

Fwiw, Std is a 3% increase. Makes no difference to me, just putting that out there.
Reply
Old Feb 7, 2026 | 02:50 PM
  #15  
C5 FRC's Avatar
C5 FRC
Thread Starter
Intermediate
All Eyes On Me
Liked
Loved
 
Joined: Jun 2024
Posts: 25
Likes: 5
From: Madison, WI
Default

Originally Posted by CamSC5Z
I'm close, but have 243 heads. I don't have a cai or anything, just headers/x/BTR Stage 2v2. 414 / 386 std on a Dynojet.
Granted you have a LS6, this gives me hope lol
Reply
Old Feb 7, 2026 | 06:36 PM
  #16  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by CamSC5Z
Fwiw, Std is a 3% increase. Makes no difference to me, just putting that out there.
Makes a difference to me. I can't stand when tuners feel the need to provide inflated STD numbers. And typically it's 104.8% relative horsepower in STD vs 100% in SAE. Not 3%.
Reply
Old Feb 16, 2026 | 06:26 PM
  #17  
JMG2's Avatar
JMG2
Moderator
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Apr 2002
Posts: 11,764
Likes: 1,360
From: US
Default

Originally Posted by USAZR1
Car is an FRC so manual.
it's manual, but not a frc. Convertible.
Reply

Get notified of new replies

To Dyno Numbers

Old Feb 16, 2026 | 07:45 PM
  #18  
CamSC5Z's Avatar
CamSC5Z
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 172
Likes: 156
From: Fishers, In
Default

Originally Posted by Johnny Hardcore
Makes a difference to me. I can't stand when tuners feel the need to provide inflated STD numbers. And typically it's 104.8% relative horsepower in STD vs 100% in SAE. Not 3%.
I chose STD as that's the current standard. Fwiw, I prefer SAE as well, but times have changed.
Reply
Old Feb 18, 2026 | 12:53 AM
  #19  
Johnny Hardcore's Avatar
Johnny Hardcore
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2004
Posts: 2,847
Likes: 1,144
From: Sleepy Hollow- NJ
Default

Originally Posted by CamSC5Z
I chose STD as that's the current standard. Fwiw, I prefer SAE as well, but times have changed.
Where did you hear that "STD is the current standard"? STD was the standard from the 1950s until the 80s. If STD is the "current standard" someone better tell the guys at ECS, Cartek, A&A and LMR. All of which still use SAE as of today. No need for "feel good" numbers.
Reply
Old Feb 18, 2026 | 03:40 PM
  #20  
CamSC5Z's Avatar
CamSC5Z
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Aug 2022
Posts: 172
Likes: 156
From: Fishers, In
Default

Originally Posted by Johnny Hardcore
Where did you hear that "STD is the current standard"? STD was the standard from the 1950s until the 80s. If STD is the "current standard" someone better tell the guys at ECS, Cartek, A&A and LMR. All of which still use SAE as of today. No need for "feel good" numbers.
This may come as a surprise, but the world extends just a bit farther than those three companies. Most people that aren't from this forum wouldn't be able to tell you who two of the three companies mentioned are.

Step outside of the tiny forum world and you'll see.


Anyone -
Is there a" block" feature on here? 😂
Reply



All times are GMT -4. The time now is 11:50 AM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE