Carolina Horsepower - View Single Post - who can swap an engine for me? (01 tahoe)

Silver-Dollar · 06-23-2011, 09:59 PM

The larger you go on the cam, you will also need to look at fuel injectors. Stockers will begin running high duty cycles around 5500 rpm. My LQ9 with a TSP 224r on stock injector was like 105% at 5600 rpms.

You need to look at your intended operating rpms, gearing, and converter when picking out a cam, specially for 4500+ lbs of ride.

you can keep most nearly everthing stock (except valve springs and pushrods) if you keep the .050 duration under 200. Choppy idle can be had by reducing the LSA. To keep most of it stock, TSP 220r on a 112 or a 111 LSA.

06-23-2011, 09:59 PM	#18
Silver-Dollar Senior Member Join Date: Jun 2008 Location: Summerville Posts: 1,019	The larger you go on the cam, you will also need to look at fuel injectors. Stockers will begin running high duty cycles around 5500 rpm. My LQ9 with a TSP 224r on stock injector was like 105% at 5600 rpms. You need to look at your intended operating rpms, gearing, and converter when picking out a cam, specially for 4500+ lbs of ride. you can keep most nearly everthing stock (except valve springs and pushrods) if you keep the .050 duration under 200. Choppy idle can be had by reducing the LSA. To keep most of it stock, TSP 220r on a 112 or a 111 LSA. __________________ 2011 Tundra Crewmax Platinum Last edited by Silver-Dollar; 06-23-2011 at 10:07 PM.