Quick Cam Question?
Thread Starter
Member
Joined: Nov 2005
Posts: 233
Likes: 0
From: Massachusetts
Car: 87 Trans Am, 89 RX7
Engine: 350tpi,350carb
Transmission: T-5,t56
Axle/Gears: 3.42 Posi,4.11 posi
Quick Cam Question?
What does it mean to be computer controlled compatible? I noticed this when looking at cams at summitracing.
Supreme Member
iTrader: (2)
Joined: Jul 2004
Posts: 1,678
Likes: 0
From: Miami
Car: 1992 Camaro RS
Engine: L03
Transmission: 700R4
Axle/Gears: Stock
If a cam is computer controlled compatible, that means it can be used on an engine that is computer controlled. Just like yours.
Senior Member
Joined: May 2002
Posts: 845
Likes: 0
From: Northern California, Redding
Car: Red 1987 IROC Convertible
Engine: 305 LB9 TPI
Transmission: T5 5-Speed
Axle/Gears: 9-Bolt 3.45
Basically it means that it is 112 LSA or greater, and that it is 218/222 deg. @ .050 (roller cam) duration or less. A flat tappet cam I would guess could be up to 220/224 deg. Intake. Ballpark numbers.....
The gist of it is that the O2 sensor cannot deal with cams that have more valve overlap than would come with a bigger cam than this. There would be too much raw fuel in the exhaust for the O2 sensor and the rest of the fuel system to work properly.
The gist of it is that the O2 sensor cannot deal with cams that have more valve overlap than would come with a bigger cam than this. There would be too much raw fuel in the exhaust for the O2 sensor and the rest of the fuel system to work properly.
Thread
Thread Starter
Forum
Replies
Last Post