NOT just another cam thread....

Reply Subscribe

Thread Tools

Search this Thread

Aug 26, 2003 | 10:01 AM

pimpmaro

Thread Starter

TECH Fanatic

Joined: Feb 2003

Posts: 1,586

Likes: 0

From: Columbus, OH

NOT just another cam thread....

Is there a mathematical way to determine what the powerband of a cam is (more or less) based on things like the lsa, duration, and advance? For some reason I have the drive to come up with a custom cam spec or two and am trying to figure out how everyone does it... assuming they don't just take some random numbers and slap 'em together...

Aug 26, 2003 | 01:56 PM

2000Z28M6

TECH Fanatic

iTrader: (13)

Joined: Apr 2003

Posts: 1,447

Likes: 1

From: C.C., TX

Re: NOT just another cam thread....

try the desktop dyno, it gets you in the ballpark if you use the rite specs.

Aug 26, 2003 | 02:04 PM

rnr27band1

TECH Resident

Joined: Mar 2002

Posts: 776

Likes: 0

From: Augusta GA, Atlanta GA (school)

Re: NOT just another cam thread....

get a lid first

Aug 26, 2003 | 02:23 PM

CrazyBosnian

Launching!

iTrader: (1)

Joined: Aug 2002

Posts: 288

Likes: 0

From: USA

Re: NOT just another cam thread....

Quote:

get a lid first

Aug 26, 2003 | 02:29 PM

Phil99vette

7 Second Club

iTrader: (11)

Joined: Jul 2002

Posts: 8,758

Likes: 9

From: Port Tobacco, MD

Re: NOT just another cam thread....

Every 6 degrees moves the power band up 500 RPM
Phillip

Aug 26, 2003 | 05:19 PM

LOnSLO

TECH Addict

iTrader: (15)

Joined: Sep 2002

Posts: 2,537

Likes: 1

From: Gainesville, GA

Re: NOT just another cam thread....

Intake valve closing point determines power range. For example, cams with an intake closing point of 45 degrees ABDC generally have a 3000-6600 rpm powerband.