cam IVC help please

Reply Subscribe

Thread Tools

Search this Thread

Sep 17, 2013 | 08:00 PM

VLS1

Thread Starter

TECH Regular

Joined: Sep 2013

Posts: 410

Likes: 0

cam IVC help please

I've worked out a cam for my combo, but I'm wondering if someone can tell me what the IVC specs would be, I can't seem to work this out..

230/234 - 609"/612" @ 113+1

Sep 17, 2013 | 08:03 PM

427zm

TECH Fanatic

iTrader: (9)

Joined: Apr 2012

Posts: 1,053

Likes: 0

From: Georgetown, Tx

Try this calculator. It'll get you what you need.

http://www.tildentechnologies.com/Cams/

Sep 17, 2013 | 08:07 PM

HCI2000SS

TECH Senior Member

iTrader: (2)

Joined: Aug 2012

Posts: 11,137

Likes: 20

From: Howell & Fenton MI

I'm not sure if i'm right, but i'm coming up with 57. I used to know this, but it's been a while lol

Sep 17, 2013 | 08:54 PM

Russ K

TECH Resident

iTrader: (1)

Joined: Apr 2006

Posts: 811

Likes: 4

From: Regina, Sask

IVC will be 47* ABDC.

Russ Kemp

Sep 18, 2013 | 01:12 AM

PREDATOR-Z

TECH Senior Member

Joined: Mar 2004

Posts: 14,620

Likes: 17

From: BFE

Quote:

Originally Posted by Russ K

IVC will be 47* ABDC.

Russ Kemp

Yeap 47......a bit late for stock cubes IMO. Increase overlap add advance.

Sep 18, 2013 | 10:21 PM

VLS1

Thread Starter

TECH Regular

Joined: Sep 2013

Posts: 410

Likes: 0

I'm looking at a few examples where the whole theory on overlap and advance, such as you're suggesting and it doesn't seem to add up as being so critical. Quite different overlap/advance, similar heads and still making strong power to a peak of around 6300...

Sep 18, 2013 | 11:46 PM

Always2Slow

TECH Enthusiast

iTrader: (8)

Joined: Apr 2006

Posts: 639

Likes: 1

Power peaks at 6300 rpm because of the intake manifold to make a long story short. That is why so many combinations seem similar with differing cams. What the real difference that you won't see on any dyno sheet is low end torque and driveability from a properly designed cam for the 6300 peak.