HELP? how to check engine compression ?

Reply Subscribe

Thread Tools

Search this Thread

Feb 15, 2008 | 09:03 PM

mike06tork

Thread Starter

TECH Enthusiast

iTrader: (5)

Joined: Nov 2007

Posts: 582

Likes: 0

From: valley

HELP? how to check engine compression ?

anybody knows how to check the engine compression im try'n to check what compression will this engine combo will be at :
6.0 block with 4.000 std. bore
wiseco pistons with -11cc 4.000 bore
3.622 oem crank
6.0 317 heads oem not ported at all 71.2cc
with oem 6.0l head gaskets
scat I beam rods 6.125
so if anybody can check please if any body knows im trying to get the compression at 8.8:1 to 9.4 but i want 9to1 compression thanks for the help.
THIS WILL GO IN A turbocharged engine..................

Feb 15, 2008 | 11:01 PM

ninetres

9 Second Club

iTrader: (35)

Joined: Nov 2005

Posts: 3,128

Likes: 4

From: Mufflerville, CA

Should be about 9.4 or so. Too lazy to go punch it in a calculator

Feb 15, 2008 | 11:24 PM

mike06tork

Thread Starter

TECH Enthusiast

iTrader: (5)

Joined: Nov 2007

Posts: 582

Likes: 0

From: valley

i checked in a calculator but i got 9.1 compression but i dont know if im doing it wrong can somebody check for me and let me know the engine parts im going to use are up their on top thanks ..................>>>>>>>>>>>>>>>>>

Feb 15, 2008 | 11:30 PM

waterbug1999

10 Second Club

iTrader: (3)

Joined: Jun 2003

Posts: 4,282

Likes: 1

From: Minnesota

http://www.rbracing-rsr.com/compstaticcalc.html

Feb 16, 2008 | 01:02 AM

mike06tork

Thread Starter

TECH Enthusiast

iTrader: (5)

Joined: Nov 2007

Posts: 582

Likes: 0

From: valley

can anybody check for me ,thanks....................i dont understand this how to calculate im getting over 11.3 compression with -11cc pistons???????????????

Feb 16, 2008 | 01:02 AM

MonochromeSS

On The Tree

iTrader: (1)

Joined: Apr 2007

Posts: 192

Likes: 0

From: Northern IL

Looks to me to be around 9.1

Feb 16, 2008 | 01:27 AM

mike06tork

Thread Starter

TECH Enthusiast

iTrader: (5)

Joined: Nov 2007

Posts: 582

Likes: 0

From: valley

so it looks good for a turbocharged eng. for 10-15psi on daily driver? 9.1compression.

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

Verdad Gallardo

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

Pouria Savadkouei

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

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

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

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Feb 17, 2008 | 11:47 AM

Screamin_Z

TECH Fanatic

iTrader: (2)

Joined: Oct 2002

Posts: 1,318

Likes: 0

From: Wichita,Ks

10lbs and 91 octane with a safe A/F and timing will be just fine. if ur wanting more, like 14lbs that's when I would mess with higher octane and/or meth.

9.1 scr is what I got.

Feb 17, 2008 | 12:33 PM

#10

mike06tork

Thread Starter

TECH Enthusiast

iTrader: (5)

Joined: Nov 2007

Posts: 582

Likes: 0

From: valley

Screamin Z you got 9.1 compression with my eng. combo on top or thats what you have on your ride and whats the size of the 6.0l MLS head gasket thickness?