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

Compression Calculator Help

Thread Tools
 
Search this Thread
 
Old Jan 23, 2007 | 09:53 AM
  #1  
SoCalErv's Avatar
SoCalErv
Thread Starter
Burning Brakes
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Oct 2006
Posts: 1,089
Likes: 43
From: Native Californian CALIFORNIA
Army
Default Compression Calculator Help

Cran Cams # 11350 has the following information on their spec sheet.

Cam Timing Tappet @.50

Lift Opens Closes Max Lift Duration

intake (4.0) ATDC 30.0 ABDC 107 206.0
exhaust 46.0 BBDC (8.0) BTDC 117 218


On the compression calculator it ask for this input:

Intake - closing point (degrees) ABDC@.050 Lift plus 15 degrees.

Do I take the 30.0 ABDC add 15? I am lost please help
Reply
Old Jan 23, 2007 | 12:57 PM
  #2  
SoCalErv's Avatar
SoCalErv
Thread Starter
Burning Brakes
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Oct 2006
Posts: 1,089
Likes: 43
From: Native Californian CALIFORNIA
Army
Default

Originally Posted by SoCalErv
Cran Cams # 11350 has the following information on their spec sheet.

Cam Timing Tappet @.50

Lift Opens Closes Max Lift Duration

intake (4.0) ATDC 30.0 ABDC 107 206.0
exhaust 46.0 BBDC (8.0) BTDC 117 218


On the compression calculator it ask for this input:

Intake - closing point (degrees) ABDC@.050 Lift plus 15 degrees.

Do I take the 30.0 ABDC add 15? I am lost please help

Come on GearHeads give me a little help.
Reply
Old Jan 23, 2007 | 09:03 PM
  #3  
SoCalErv's Avatar
SoCalErv
Thread Starter
Burning Brakes
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Oct 2006
Posts: 1,089
Likes: 43
From: Native Californian CALIFORNIA
Army
Default

ttt
Reply
Old Jan 23, 2007 | 09:53 PM
  #4  
dgruenke's Avatar
dgruenke
Drifting
15 Year Member
 
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
Default

Yes, you are correct.
Reply
Old Jan 23, 2007 | 10:05 PM
  #5  
SoCalErv's Avatar
SoCalErv
Thread Starter
Burning Brakes
15 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Oct 2006
Posts: 1,089
Likes: 43
From: Native Californian CALIFORNIA
Army
Default

Originally Posted by dgruenke
Yes, you are correct.

So the number for this input cell with the example provided would be 45 degrees?
Reply
Old Jan 23, 2007 | 10:08 PM
  #6  
dgruenke's Avatar
dgruenke
Drifting
15 Year Member
 
Joined: Apr 2002
Posts: 1,716
Likes: 4
From: New Baden Illinois
Default

Yes, but if you are using the KB compression calculator, it tends to give a slightly high reading on the DCR.
Reply

Get notified of new replies

To Compression Calculator Help





All times are GMT -4. The time now is 11:02 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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