C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Modded Ls2 - Peak HP guess

Thread Tools
 
Search this Thread
 
Old Apr 13, 2009 | 10:53 PM
  #21  
Sik Six's Avatar
Sik Six
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
Photogenic
 
Joined: Jan 2007
Posts: 1,460
Likes: 38
From: Broken Arrow Oklahoma
Default

Originally Posted by BOB EAGAN
I have a 232/232 .595 114 lsa Comp. cam, Kooks LTH, catted x-pipe, Corsa Sports, Halltech Stinger intake, dyno tuned and got 450/405. I asked on the cam size so as to give you a better estimate of you rwhp with those mods. I've also added 390 gears and I am a happy camper. Good luck with your mods.
I have almost the exact same mods and about the exact same numbers!
Reply
Old Apr 13, 2009 | 11:21 PM
  #22  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by sirsenna
When I did my cam research, the G5X3 from LG seemed to offer a good balance of power & agression Sounds violent enough that my neighbors are starting to nag me
Thats a good sized cam, similar to mine, should put you at 425 rwhp. I have a nice lope at idle, Corsa Sports are pretty loud, and it is insane at WOT. Went to LG wheels and z06 supercar tires. On a warm day, 75 deg. plus, the F1 supercars hook up pretty good. If you end up needing better tires for traction, as 425 rwhp will push the stock ones to thier limit, I would not suggest the z06 tires. Nitto's or Toyo's are a better choise. Lot of info on this forum on these choises. Good luck.
Reply
Old Apr 13, 2009 | 11:25 PM
  #23  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

The BB Bullets are loud. If you kept your old mufflers, they will sound a lot better with LTH and a cam and you may want to try that first. Lots of options here, M2W or npp.
Reply
Old Apr 13, 2009 | 11:27 PM
  #24  
Joe_G's Avatar
Joe_G
Tech Contributor
20 Year Member
Photogenic
Liked
Loved
 
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Default

Originally Posted by bunk22
My guess is 430rwhp/400rwtq SAE with the stock intake. With a FAST, 450+rwhp/410+rwtq SAE.
That's a very good guess Bunk.....

Check sig. I was 436/392 before the FAST. Most say the 3.90 gears cost 10 rwhp/rwtq peak.

And the sound....well....that's a great benefit! I love it.



Last edited by Joe_G; Apr 13, 2009 at 11:29 PM.
Reply
Old Apr 14, 2009 | 08:52 AM
  #25  
Fore58's Avatar
Fore58
Le Mans Master
20 Year Member
Veteran: Army
Liked
Loved
 
Joined: Oct 2005
Posts: 5,052
Likes: 889
From: Tampa Florida
Default

Is there a prize for this? 426/398.
Reply
Old Apr 14, 2009 | 06:17 PM
  #26  
The Clevite Kid's Avatar
The Clevite Kid
Safety Car
Supporting Lifetime
St. Jude 15 Year Donor
20 Year Member
Liked
Community Favorite
 
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Default

If you are gonna post info on Forum Tuner HorsePower Sales:

Mods by Horsepower Sales - Pompano Beach 954-782-6700
then let's give the current phone number: 954-984-8040.

. . . and how about the website: http://www.hpsalesflorida.com/

Next week Jeremy is dyno-tuning my project:

Livernois Stage 3 heads at 11.7 to 1 compression
224º/228º - .595”/.595” 114º LSA +4º advance cam
Ported FAST 92, Ported Throttle Body, 46# injectors
Kooks LT headers - B&B Route 66 mufflers
LS7 clutch + Fidanza Aluminum flywheel
3.90 gears w/ MN6

We will see what we will see


.
Reply
Old Apr 14, 2009 | 08:01 PM
  #27  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
If you are gonna post info on Forum Tuner HorsePower Sales:



then let's give the current phone number: 954-984-8040.

. . . and how about the website: http://www.hpsalesflorida.com/

Next week Jeremy is dyno-tuning my project:

Livernois Stage 3 heads at 11.7 to 1 compression
224º/228º - .595”/.595” 114º LSA +4º advance cam
Ported FAST 92, Ported Throttle Body, 46# injectors
Kooks LT headers - B&B Route 66 mufflers
LS7 clutch + Fidanza Aluminum flywheel
3.90 gears w/ MN6

We will see what we will see


.
I'll take a guess at that one. One of the Livernois customers has a ls2, Stage 3 heads, 232/232 .595 114 lsa, Kooks lth, Corsa sports, mn6 that dyno'd at 472/412. I believe the gears are 342's. Your cam is a tab bit smaller, better injectors, alum. flywheel are all plus factors. The ported Fast 92 on that set up should get you 25-30 hp. And a Jeremy tune, nice.
My guess is 510/450. Wow. Good luck. You will see what you see. Can hardly wait to see the numbers, n/a over 500 is rare.
Reply
Old Apr 14, 2009 | 08:10 PM
  #28  
sirsenna's Avatar
sirsenna
Thread Starter
Pro
 
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Default

Well I took the car out tonight, without the LT headers, and it already pulls considerably harder. The headers should help freeing up all that 'choked up" power.

Will go on the dyno once the headers get here

thnaks for all the input... can't wait to see the actuals.

I wonder what the bullets will contribute to the equation once the headers are in... what would i lose in going back to stock mufflers?
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

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

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old Apr 14, 2009 | 08:21 PM
  #29  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by sirsenna
Well I took the car out tonight, without the LT headers, and it already pulls considerably harder. The headers should help freeing up all that 'choked up" power.

Will go on the dyno once the headers get here

thnaks for all the input... can't wait to see the actuals.

I wonder what the bullets will contribute to the equation once the headers are in... what would i lose in going back to stock mufflers?
The total restriction in the exaust is around 25 hp. With stock headers the aftermarket mufflers will give you maybe 10 hp max. With LTH you will pick up the entire 25 and the mufflers only account for 1-5 hp. Header will add 15 to what you have now, then swapping mufflers will have little or no change.(You still pick up 25 hp over stock with headers.) Hope that not confusing.
Reply
Old Apr 14, 2009 | 08:24 PM
  #30  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Bullets with headers and a cam will be twice as loud.
Reply
Old Apr 14, 2009 | 08:27 PM
  #31  
The Clevite Kid's Avatar
The Clevite Kid
Safety Car
Supporting Lifetime
St. Jude 15 Year Donor
20 Year Member
Liked
Community Favorite
 
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Default

Originally Posted by BOB EAGAN
I'll take a guess at that one. One of the Livernois customers has a ls2, Stage 3 heads, 232/232 .595 114 lsa, Kooks lth, Corsa sports, mn6 that dyno'd at 472/412. I believe the gears are 342's. Your cam is a tab bit smaller, better injectors, alum. flywheel are all plus factors. The ported Fast 92 on that set up should get you 25-30 hp. And a Jeremy tune, nice.
My guess is 510/450. Wow. Good luck. You will see what you see. Can hardly wait to see the numbers, n/a over 500 is rare.
You are too kind, Bob. I selected the cam for good torque over a wide RPM range, not for peak horsepower. If I see 440 RWHP I will be very pleased. 510 at the FLYWHEEL is not out of the question, however. Then I will have the elusive Z06 convertible !!!

And the Jeremy is Jeremy Preston, President of HorsePower Sales, and a fine tuner and driver of his own winning C5 drag racer. Not the other Jeremy you may be thinking of in Florida.
Reply
Old Apr 14, 2009 | 08:48 PM
  #32  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
You are too kind, Bob. I selected the cam for good torque over a wide RPM range, not for peak horsepower. If I see 440 RWHP I will be very pleased. 510 at the FLYWHEEL is not out of the question, however. Then I will have the elusive Z06 convertible !!!

And the Jeremy is Jeremy Preston, President of HorsePower Sales, and a fine tuner and driver of his own winning C5 drag racer. Not the other Jeremy you may be thinking of in Florida.
That is a very good cam choise and is used by a lot of forum members. My cam was part of Livernois Motorsports stage 2 package and wasn't something I selected because I knew what I was doing. The differences between the two cannot be more the 5 hp. My package added 100-110 rwhp. You are at least that and with the stage 3 heads you get another 20-25 and ported fast another 25 min. I see 150-160 gain added to 340-345 and there you are knocking at 500. I'm referring to dynojet numbers, mustang will be close or a little lower. Sorry, I was thinking of the other Jeremy, but I'm sure this Jeremy will do fine. Did you have to flycut or notch the pistons with those heads? When I did my package I had asked about the stage 3 heads and they said flycutting was needed for clearance issues.
Reply
Old Apr 14, 2009 | 09:03 PM
  #33  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
You are too kind, Bob. I selected the cam for good torque over a wide RPM range, not for peak horsepower. If I see 440 RWHP I will be very pleased. 510 at the FLYWHEEL is not out of the question, however. Then I will have the elusive Z06 convertible !!!

And the Jeremy is Jeremy Preston, President of HorsePower Sales, and a fine tuner and driver of his own winning C5 drag racer. Not the other Jeremy you may be thinking of in Florida.
With that cam, headers, ported Fast and stock heads you should be at 440-450. Those stage 3 heads are probably good for 45-50 rwhp on yor setup. I think you will be very pleased if all you're looking for is 440.
Reply
Old Apr 14, 2009 | 09:14 PM
  #34  
The Clevite Kid's Avatar
The Clevite Kid
Safety Car
Supporting Lifetime
St. Jude 15 Year Donor
20 Year Member
Liked
Community Favorite
 
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Default

With my "Goldilocks" cam (not too BIG, not too small) notching of the pistons was not required, even with the 0.036" Cometics and milling to 62 cc chambers to get the 11.7 to one static compression.

I am hoping that the really tight quench, and the 8.7 to one dynamic compression ratio will allow reasonable spark advance and good torque over the 2000 to 6000+ rpm range.
Reply
Old Apr 14, 2009 | 09:21 PM
  #35  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
With my "Goldilocks" cam (not too BIG, not too small) notching of the pistons was not required, even with the 0.036" Cometics and milling to 62 cc chambers to get the 11.7 to one static compression.

I am hoping that the really tight quench, and the 8.7 to one dynamic compression ratio will allow reasonable spark advance and good torque over the 2000 to 6000+ rpm range.
I know one guy running a 242/246 .6xx 112 lsa and the car shakes, not very streetable, but thats what he likes and that is what counts. Like I said before, that is a good cam choise and should work very well with your mods. Now when you fire this baby up, what tires will you be using?

Last edited by BOB EAGAN; Apr 14, 2009 at 09:36 PM. Reason: cam spec. change
Reply
Old Apr 14, 2009 | 09:30 PM
  #36  
The Clevite Kid's Avatar
The Clevite Kid
Safety Car
Supporting Lifetime
St. Jude 15 Year Donor
20 Year Member
Liked
Community Favorite
 
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Default

Originally Posted by bob eagan
i know one guy running a 342/346 .6xx 112 lsa and the car shakes, not very streetable, . . .
342/346 ? ? ?

At 0.050" lift? Most of us would consider 242/246 at 0.050" a fairly stout camshaft . . . .
Reply
Old Apr 14, 2009 | 09:35 PM
  #37  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
342/346 ? ? ?

At 0.050" lift? Most of us would consider 242/246 at 0.050" a fairly stout camshaft . . . .
I'm sorry, I meant 242/246 big difference. I'll edit my post. Thanks.
Reply

Get notified of new replies

To Modded Ls2 - Peak HP guess

Old Apr 14, 2009 | 09:36 PM
  #38  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

I guess it would shake with those values.lol
Reply
Old Apr 14, 2009 | 09:39 PM
  #39  
BOB EAGAN's Avatar
BOB EAGAN
Burning Brakes
 
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
Default

Originally Posted by The Clevite Kid
With my "Goldilocks" cam (not too BIG, not too small) notching of the pistons was not required, even with the 0.036" Cometics and milling to 62 cc chambers to get the 11.7 to one static compression.

I am hoping that the really tight quench, and the 8.7 to one dynamic compression ratio will allow reasonable spark advance and good torque over the 2000 to 6000+ rpm range.
What tires will you be using?
Reply
Old Apr 14, 2009 | 10:26 PM
  #40  
sirsenna's Avatar
sirsenna
Thread Starter
Pro
 
Joined: Dec 2004
Posts: 534
Likes: 0
From: New Brunswick
Default

Originally Posted by BOB EAGAN
I guess it would shake with those values.lol

My G5X3 shakes... I feel like Warren Johnson at stoplights
Reply



All times are GMT -4. The time now is 05:03 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
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-8
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-9
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