cam
Thread Starter
3rd Gear
Joined: May 2009
Posts: 3
Likes: 0
hell i know man im asking this for my dad o.0 they told him he needs a stonger cam it has take off but its kinda weak when ure goin 55 and u stomp on it
my dad hes very anti-computers couldnt use one to save his life lol
my dad hes very anti-computers couldnt use one to save his life lol
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
your Dad is part of the old school....way back when cams were either stock or 1/4 to 3/4 "race". Then never really told you the lift or duration. Haven't heard those terms in years. Brings back good memories.
What cam is in there currently? I believe that Lingenfelter made the 74211 cam originally for the 383 stroker. That might be a possability for your car. Depending on the RR's that you use, your lift may be too tall for the valve covers. You might solve this with thicker gaskets or different covers
What cam is in there currently? I believe that Lingenfelter made the 74211 cam originally for the 383 stroker. That might be a possability for your car. Depending on the RR's that you use, your lift may be too tall for the valve covers. You might solve this with thicker gaskets or different covers
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
My first suggestion is to call a couple cam companies and tell them what you've got and ask for their advice. They'll want to know displacement, static compression ratio, valve size, heads (flow data if available), fuel delivery, car weight, intended use, and probably a dozen other things I'm forgetting here.
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
Just curious because I've heard this term thrown around before and was clueless. Still am.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
I could be wrong but I think.....we are talking "lift" (lobe height) here like a .500 lift cam would = 1/2 inch cam
and a .750 lift cam would be = 3/4 inch lift or "full race" if you will...you know the cams that you have to bang each lobe on the cam bearing to get in.
Instructor
Joined: Mar 2005
Posts: 129
Likes: 0
From: Layton ut
I think it's a reference from the old days. People used to say 3/4 cam meaning not a full race but almost. A 1/2 cam would be halfway between stock and full race. So a 3/4 would be 230-240 degrees duration. Most laymen don't know the differences between intake valve closing points and LSAs and durations and overlaps and such, so they just said 3/4 cam or 1/2 cam to get their points across. Nowadays there's so much more to it that I don't hear those expressions too much any more.