C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

L82 Cam

Thread Tools
 
Search this Thread
 
Old Apr 24, 2007 | 10:06 PM
  #1  
isawdan's Avatar
isawdan
Thread Starter
Intermediate
10 Year Member
 
Joined: Nov 2004
Posts: 29
Likes: 0
From: Plainfield IL
Default L82 Cam

Does anyone know if an 80 -L82 has some kind of a upgrade on the cam? And what effect if any does it have on the idle ? thanks, Dan
Reply
Old Apr 24, 2007 | 10:11 PM
  #2  
dgruenke's Avatar
dgruenke
Drifting
15 Year Member
 
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
Default

It depends on what you mean by upgrade. The cam in the L82 is an upgrade over the cam in the L48.

I don't think it has any effect on the idle.
Reply
Old Apr 24, 2007 | 10:23 PM
  #3  
batsmith's Avatar
batsmith
Intermediate
 
Joined: Apr 2007
Posts: 28
Likes: 0
From: Edmond OK
Default

When my 79 was still stock the idle was pretty tame, but I have heard from other corvette guys that the stock cam is pretty hot....

Not sure what motivates the question, but I hope that helps.
Reply
Old Apr 25, 2007 | 12:32 AM
  #4  
Scott Marzahl's Avatar
Scott Marzahl
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2005
Posts: 6,336
Likes: 416
From: Seattle Area WA
Default

It has a little more idle than the L-48 and a looser converter in an automatic car to address it.
Reply
Old Apr 25, 2007 | 10:13 AM
  #5  
isawdan's Avatar
isawdan
Thread Starter
Intermediate
10 Year Member
 
Joined: Nov 2004
Posts: 29
Likes: 0
From: Plainfield IL
Default

Thanks for the replies I just wanted to know if the L82 has any other engine or horsepower adjustments other than the high compression ratio to boost the horse power up from 190 to 230. I am trying to addup the gain by subtracting all the polution control and catalyic converter. Adding headers and a K&N filter. This was how I bought the car 2 years ago I know its hypothetical but I like to play with numbers.
Reply
Old Apr 25, 2007 | 10:25 AM
  #6  
Ganey's Avatar
Ganey
Race Director
10 Year Member
 
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Default

Originally Posted by isawdan
Thanks for the replies I just wanted to know if the L82 has any other engine or horsepower adjustments other than the high compression ratio to boost the horse power up from 190 to 230. I am trying to addup the gain by subtracting all the polution control and catalyic converter. Adding headers and a K&N filter. This was how I bought the car 2 years ago I know its hypothetical but I like to play with numbers.
The difference in power is the L-82 cam, larger valves (2.02 1.60) & higher c/r.
Better ex. will help your 80 L-82. See what many refer to as my Exhaust topic.
http://www.corvettefaq.com/c3/ganeyexhaust.htm
Reply
Old Apr 25, 2007 | 10:27 AM
  #7  
isawdan's Avatar
isawdan
Thread Starter
Intermediate
10 Year Member
 
Joined: Nov 2004
Posts: 29
Likes: 0
From: Plainfield IL
Default

I forgot to add that in time past When I went to test drive another Vette the seller said that part of the reason it idles rough is because it has a hi performance Cam in it . I didnt buy the car but I like the way it sounded.
Reply
Old Apr 25, 2007 | 12:49 PM
  #8  
stingr69's Avatar
stingr69
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2004
Posts: 7,437
Likes: 1,463
From: Little Rock AR
Default

The L-82 has just a slight idle roughness. It has incresed compression as well. It is a little soft at the bottom end RPM but will rev higher at the top than the L-48. High flow catalytic converter or a true dual setup will help a lot. It will rev even higher with better cylinder heads.

-Mark.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

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

 Joe Kucinski
story-4

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-5

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-6

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-7

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-8

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-9

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
Old Apr 25, 2007 | 02:56 PM
  #9  
SanDiegoPaul's Avatar
SanDiegoPaul
Race Director
Supporting Lifetime
 
Joined: Sep 2002
Posts: 10,362
Likes: 5
From: San Diego - Deep Within The State of CONFUSION!
Default

I think Chevy used the '962' cam in them. When I built the motor for my Nova, I chose that one and it ran like a scalded egg.

<<hmmm...does a scalded egg run?>>

-Paul
Reply

Get notified of new replies

To L82 Cam





All times are GMT -4. The time now is 04:47 AM.

story-0
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-1
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-2
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-3
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
story-4
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-5
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-6
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-7
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-8
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-9
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE