Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Thinking of downsizing cam!

Thread Tools
 
Search this Thread
 
Old Feb 7, 2017 | 10:46 AM
  #1  
echelonphoto's Avatar
Thread Starter
Registered User
 
Joined: Feb 2017
Posts: 5
Likes: 0
Default Thinking of downsizing cam!

Hi....new to forum. I just bought a 2009 corvette ls3 manual coupe...the car has a vengeance racing cam kit KaotiK camshaft specifications are 235/243 .621/.624 113 LSA.

Also has pfadt headers , no cats, vararam. Makes about 500 hp to the wheels
I really like the car and have had a very good street tune...but the smell is getting to be too much for a DD and also...the cam is hard to drive in traffic...you really can't let the revs go below 1500 rpm...gets lousy gas mileage compared to my stock 02 ZO6. I would like to change out the cam to something milder and add cats...hoping this will control the smell somewhat and give me more mid range driveability....any recommendations? I would assume I keep the heavy duty valve springs and pushrods.
Reply
Old Feb 7, 2017 | 11:42 AM
  #2  
KW Baraka's Avatar
TECH Addict
iTrader: (7)
 
Joined: Apr 2013
Posts: 2,180
Likes: 132
From: S.A., TX
Default

Cam Motion, Brian Tooley Racing, Patrick Guerra, Tick Performance.

All can spec you a milder cam (10* overlap or less) that will give you close to the power you have now, but will improve your drivability, improve your gas mileage, and lessen your exhaust stink......with or without cats.

My '95 Impala puts down 450HP with a Lingenfelter GT1-1 cam (about 7* overlap)....and I have a 4L60E (auto) trans, what are essentially shorty headers and cats. Nice strong lope, no exhaust stink, and no surging or stalling out.

All four of the above entities in the first line can be found via a Google search, or a search on this forum.

Best of luck!

KW
Reply
Old Feb 7, 2017 | 11:58 AM
  #3  
Jimbo1367's Avatar
TECH Senior Member
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2009
Posts: 8,032
Likes: 661
Default

I second all 4 mentioned above
Reply
Old Feb 7, 2017 | 12:36 PM
  #4  
echelonphoto's Avatar
Thread Starter
Registered User
 
Joined: Feb 2017
Posts: 5
Likes: 0
Default

Thanks

How is this choice?

223/231 .360/.350 112+0
Reply
Old Feb 7, 2017 | 12:41 PM
  #5  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Default

Originally Posted by echelonphoto
223/231 .360/.350 112+0
The lift is at the cam? Hope so....
Reply
Old Feb 7, 2017 | 01:29 PM
  #6  
echelonphoto's Avatar
Thread Starter
Registered User
 
Joined: Feb 2017
Posts: 5
Likes: 0
Default

Would imagine so, it is a cam motion cam
Reply
Old Feb 7, 2017 | 03:23 PM
  #7  
NAVYBLUE210's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 1,845
Likes: 255
From: Coast of San Mateo County Between Pacifica & HMB
Default

Originally Posted by echelonphoto
Thanks

How is this choice?

223/231 .360/.350 112+0
i like those specs and Cam Motion (.612"/.595") @ valve.
with that cam and cats you will be very happy.

I would probably go LSA 114*+3* but thats just me.
Reply
Old Feb 7, 2017 | 03:24 PM
  #8  
JakeFusion's Avatar
Super Hulk Smash
20 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Default

I'd do something like this from Cam Motion:

http://store.cammotion.com/catalog/p...da57449a024668

And then add high-flow cats. Won't lose much power. Will drive better and smell much better.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 7, 2017 | 03:42 PM
  #9  
echelonphoto's Avatar
Thread Starter
Registered User
 
Joined: Feb 2017
Posts: 5
Likes: 0
Default

Hi Navy blue....so 114...that's a little more overlap....I do have the base gearing...so pretty tall, but with the weight of the car, shouldn't be problem...I do want to be able to lug the car a little at around 1500 rpm which means I can do 30mph in 3rd. This car now gets to about 85 in third by redline.
Reply
Old Feb 7, 2017 | 03:43 PM
  #10  
NAVYBLUE210's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 1,845
Likes: 255
From: Coast of San Mateo County Between Pacifica & HMB
Default

^^^^^^^^^^
Agreed with Jake, even better!
Reply
Old Feb 7, 2017 | 03:45 PM
  #11  
NAVYBLUE210's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2009
Posts: 1,845
Likes: 255
From: Coast of San Mateo County Between Pacifica & HMB
Default

Originally Posted by echelonphoto
Hi Navy blue....so 114...that's a little more overlap....I do have the base gearing...so pretty tall, but with the weight of the car, shouldn't be problem...I do want to be able to lug the car a little at around 1500 rpm which means I can do 30mph in 3rd. This car now gets to about 85 in third by redline.
Actually 114* Vs 112* LSA would be LESS Overlap!
Reply
Old Feb 7, 2017 | 05:00 PM
  #12  
99 Black Bird T/A's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Nov 2001
Posts: 8,638
Likes: 1,499
Default

Two other cams for consideration...

Spartan Performance has a 224/234 .630/.630 115 camshaft on their own lobes that produces 460-470rwhp in a stock headed car and 490+rwhp with CNC'd heads. The driveability with tuning is said to be fantastic. 40mph in 6th gear @ 1300-1400 rpms is no problem, zero buck in parking lots, etc. These are also very smooth lobes with a nice smooth transition on/off the valve seat.

Lingenfelter's GT1-2 cam, 227/235 duration @ .050 lift - .614/.621 lift with 1.7 rocker 115 CL Great Muscle Car Sound

Extensive engine dyno testing at Lingenfelter has produced some of the best street camshaft profiles available for the LS1, LS2, LS3, LS6 engines. The Lingenfelter "GT12" camshaft was designed to produce excellent power and will give your car an aggressive muscle car idle while still offering street manners. The GT12 can be used in a automatic or six speed manual transmission equipped vehicles that are daily driven.

This cam also works well with forced induction if you were to decide to add that later on.
Reply
Old Feb 8, 2017 | 09:27 AM
  #13  
echelonphoto's Avatar
Thread Starter
Registered User
 
Joined: Feb 2017
Posts: 5
Likes: 0
Default

Pardon my ignorance is 1.7 the stock rocker arm ratio. The springs and rods in my car are the ones supplied by vengeance in their kit...will they work with these suggested cams or do I have to change them.
Reply
Old Feb 8, 2017 | 01:12 PM
  #14  
CAMMOTION PERF's Avatar
LS1Tech Sponsor
 
Joined: Dec 2014
Posts: 507
Likes: 106
Default

Originally Posted by echelonphoto
Hi....new to forum. I just bought a 2009 corvette ls3 manual coupe...the car has a vengeance racing cam kit KaotiK camshaft specifications are 235/243 .621/.624 113 LSA.

Also has pfadt headers , no cats, vararam. Makes about 500 hp to the wheels
I really like the car and have had a very good street tune...but the smell is getting to be too much for a DD and also...the cam is hard to drive in traffic...you really can't let the revs go below 1500 rpm...gets lousy gas mileage compared to my stock 02 ZO6. I would like to change out the cam to something milder and add cats...hoping this will control the smell somewhat and give me more mid range driveability....any recommendations? I would assume I keep the heavy duty valve springs and pushrods.
echelonphoto, we have solutions!

We have one camshaft that we made for people who wanted stock drivability and no fuel smell. The owner of our company has this camshaft in his daily driver. He and all of the customers who have it absolutely love it. It is our Torque Titan:
http://store.cammotion.com/torque-titan-ls-camshaft
This camshaft will not make hero dyno numbers, but it does make better than stock power from idle to redline and will restore your driving pleasure.

If you wanted a little more power and RPM capability, we could make a you a custom grind of 220/228 on 118+4 with about .620" lift. This camshaft would have the same great drivability, but trade a little low end torque for upper RPM performance.

Let me know if you want me to make you something to bring the pleasure back to your car.

~Steven
Reply
Old Feb 8, 2017 | 03:17 PM
  #15  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Default

Steven- About how much more power would an LS3 gain with the Torque Titan ONLY? I notice the durations of it and The GM "Hot Cam" are within a degree or two, but with a bunch more lift and a lot less overlap. Looks like a great cam!
Reply
Old Feb 8, 2017 | 04:51 PM
  #16  
CAMMOTION PERF's Avatar
LS1Tech Sponsor
 
Joined: Dec 2014
Posts: 507
Likes: 106
Default

Originally Posted by G Atsma
Steven- About how much more power would an LS3 gain with the Torque Titan ONLY? I notice the durations of it and The GM "Hot Cam" are within a degree or two, but with a bunch more lift and a lot less overlap. Looks like a great cam!
The Torque Titan is no dyno hero. That is not what it is about. It will make about 20-25 peak horsepower more than stock while giving up nothing down low. It will also broaden the power peak giving you more power under the curve. So, you get improved acceleration with no loss of drivability.
Reply
Old Feb 8, 2017 | 06:21 PM
  #17  
JimmyGTO's Avatar
On The Tree
 
Joined: May 2006
Posts: 131
Likes: 1
From: Virginia
Default

Originally Posted by echelonphoto
Thanks

How is this choice?

223/231 .360/.350 112+0
My son is running that cam in his 09 G8 GT with worked AI heads. Stock converter and stock 292 gears. He loves the cam.
Reply
Old Feb 8, 2017 | 08:23 PM
  #18  
G Atsma's Avatar
TECH Senior Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2016
Posts: 22,291
Likes: 3,616
From: Central Cal.
Default

Originally Posted by CAMMOTION PERF
The Torque Titan is no dyno hero. That is not what it is about. It will make about 20-25 peak horsepower more than stock while giving up nothing down low. It will also broaden the power peak giving you more power under the curve. So, you get improved acceleration with no loss of drivability.
Thank you! I thought it would be good for a little more HP, but that isn't bad. I have a feeling the torque is pumped up more than HP.
Reply
Old Feb 22, 2017 | 10:38 AM
  #19  
Ron@Vengeance's Avatar
FormerVendor
iTrader: (51)
 
Joined: Nov 2001
Posts: 5,628
Likes: 1
From: Cumming GA
Default

Originally Posted by echelonphoto
Hi....new to forum. I just bought a 2009 corvette ls3 manual coupe...the car has a vengeance racing cam kit KaotiK camshaft specifications are 235/243 .621/.624 113 LSA.

Also has pfadt headers , no cats, vararam. Makes about 500 hp to the wheels
I really like the car and have had a very good street tune...but the smell is getting to be too much for a DD and also...the cam is hard to drive in traffic...you really can't let the revs go below 1500 rpm...gets lousy gas mileage compared to my stock 02 ZO6. I would like to change out the cam to something milder and add cats...hoping this will control the smell somewhat and give me more mid range driveability....any recommendations? I would assume I keep the heavy duty valve springs and pushrods.
I would suggest revisiting the tuning before throwing money away. The Kaotik is not a stock camshaft by any means, but with proper tuning it can run extremely well and it is daily driven in combinations all over the country without issue.

If we can be of any assistance please do not hesitate to reach out.
Reply
Old Mar 3, 2017 | 12:28 PM
  #20  
farmington's Avatar
TECH Fanatic
iTrader: (14)
 
Joined: Jun 2010
Posts: 1,807
Likes: 13
From: Little River SC
Default

MAYBE you would just be happier with a set of 3.73 gears in the rear. would really help the low speed manners.
Reply




All times are GMT -5. The time now is 03:34 PM.

story-0
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-1
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-2
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-3
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-4
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
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE