I have a 4.3 v6 engine that i have lightly modified. Such as K&N cold air induction kit, throttle body spacer, underdrive pulleys, headers, edelbrock heavy duty water pump, flowmaster dual exhaust, and a high 160amp alternator. I am afraid that if i put in a cam the engine will some how go all out of wack such as timing and every thing. What does the cam do? How will it affect my engine?
2007-06-23 02:38:42 · 4 answers · asked by Chevrolet 4.3 1 in Cars & Transportation ➔ Maintenance & Repairs
There may be some restrictions on engine modifications, depending on what emission testing facilities are in your area. You will see a significant improvement in performance, however, do not get carried away with a high lift/long duration cam without doing your homework. You'll run into problems with vacuum,[to operate your brakes] the computer, & the valve train. [springs & clearances]
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2007-06-23 02:53:43 · answer #1 · answered by Mr. T 7 · 0⤊ 0⤋
The cam males the valve open and close, when changing cams you can change the lift and the duration of lift of the valve increasing the volume of air that enters the firing chamber.
You need to do allot of reaserch before changing cams. When you change cams it is important to pick the right cam for what you want to do.
I would first decide what I wanted from the engine, determine the airflow of my engine then decide how is the best way to change it to what I want. Do you want a cam that will work with your heads & intake, or are you considering a complete change cam heads, intake, EMS. What size cam can you go to before you have vacuum problems, do you need a vacuum booster.
What kind of fuel do your want to burn, do you want low end hp or high end, where do you want the torque band. Changing a cam is not plug & play.
2007-06-23 10:20:45 · answer #2 · answered by DeSaxe 6 · 0⤊ 0⤋
try edelbrock.com they will have a application list for there cams and describe their actions .. the performance cam has the lobes bigger and the indexing a lil different to produce more air flow and exhaust flow = more power .. you are a prime candidate for a cam you have opened up the breathing to allow the more air needed for a cam
2007-06-23 09:47:48 · answer #3 · answered by wonderboy n 5 · 0⤊ 0⤋
It will change the timing of your valvetrain to produce more power. You'll likely have to run 93 octane to keep from detonating.
2007-06-23 09:42:27 · answer #4 · answered by Anonymous · 0⤊ 0⤋