Noob Looking for Cam Performance that will also Pass MD Smog.
12-04-2011, 10:29 AM
#1
Noob Looking for Cam Performance that will also Pass MD Smog.
2000 Silverado 5.3, K&N CAI Flowmaster low restriction exhaust Diablo tune, 4wd 4.56's on 35's.
Can anyone whose been there done that recommend a cam that will help provide better low and mid-range power over tha stock OEM cam and still pass the MD smog test here?
Truck shares daily driving duties with my import, (for gas mileage), and occassionally pulls a tandem bike trailer to bike rallys. I'm looking for a little something extra to complement the 4.56's I just had installed.
I figured someone here has already discovered a "magic bullet" cam that will help with what I'm looking for and still pass the sniff test every 2 years.
I'm not much with the search function for something like this.
Appreciate any help/feedback.
Thanks, V1
Can anyone whose been there done that recommend a cam that will help provide better low and mid-range power over tha stock OEM cam and still pass the MD smog test here?
Truck shares daily driving duties with my import, (for gas mileage), and occassionally pulls a tandem bike trailer to bike rallys. I'm looking for a little something extra to complement the 4.56's I just had installed.
I figured someone here has already discovered a "magic bullet" cam that will help with what I'm looking for and still pass the sniff test every 2 years.
I'm not much with the search function for something like this.
Appreciate any help/feedback.
Thanks, V1
01-07-2012, 08:50 AM
#5
Thanks for the feedback. The trans is a TransGo HD2 full on kitted with Oregon trans performance billet servos and yes stock converter.
The only other mod I had considered was something on the order of the Yank, (or equiv. 2600 rpm converter), I do occasionally tow a tandem enclosed bike trailer, but loved my ATI 2600 converter in a camaro I built for the street.
As for the motor, and "Maryland Smog Test" I guess that was my basic question. I just rolled 130k. Motor has never been apart, but was orig. an AZ COPO / VIP order in '00, and later long blocked under warranty due to the old piston slap warranties....
I can't believe the difference the 4.56's and the Diablo adjustments have made to the little 5.3 in a heavy vehicle like this truck! While performance is a good thing, I like addressing the power to weight aspect. (it'd be nice to pick up 1.5-2 mpg at the same time, lol.)
Long story short, I suspect the motor may have approx. 100k actual on it, sounds great, doesn't burn oil or leak and is clean as a pin. I've owned it 5 years.
I'm trying to develop my plan of attack. I'm a competent wrench and if a cam/convertor change will give me what I'm looking for, (other than freshening up the heads at some point), if I can still pass smog, that's the primary objective, with better low and mid-range gains ultimately.
Lifted and big tires is not a race truck.....agree.
The only other mod I had considered was something on the order of the Yank, (or equiv. 2600 rpm converter), I do occasionally tow a tandem enclosed bike trailer, but loved my ATI 2600 converter in a camaro I built for the street.
As for the motor, and "Maryland Smog Test" I guess that was my basic question. I just rolled 130k. Motor has never been apart, but was orig. an AZ COPO / VIP order in '00, and later long blocked under warranty due to the old piston slap warranties....
I can't believe the difference the 4.56's and the Diablo adjustments have made to the little 5.3 in a heavy vehicle like this truck! While performance is a good thing, I like addressing the power to weight aspect. (it'd be nice to pick up 1.5-2 mpg at the same time, lol.)
Long story short, I suspect the motor may have approx. 100k actual on it, sounds great, doesn't burn oil or leak and is clean as a pin. I've owned it 5 years.
I'm trying to develop my plan of attack. I'm a competent wrench and if a cam/convertor change will give me what I'm looking for, (other than freshening up the heads at some point), if I can still pass smog, that's the primary objective, with better low and mid-range gains ultimately.
Lifted and big tires is not a race truck.....agree.
01-10-2012, 10:19 AM
#6
Thanks for the feedback. The trans is a TransGo HD2 full on kitted with Oregon trans performance billet servos and yes stock converter.
The only other mod I had considered was something on the order of the Yank, (or equiv. 2600 rpm converter), I do occasionally tow a tandem enclosed bike trailer, but loved my ATI 2600 converter in a camaro I built for the street.
As for the motor, and "Maryland Smog Test" I guess that was my basic question. I just rolled 130k. Motor has never been apart, but was orig. an AZ COPO / VIP order in '00, and later long blocked under warranty due to the old piston slap warranties....
I can't believe the difference the 4.56's and the Diablo adjustments have made to the little 5.3 in a heavy vehicle like this truck! While performance is a good thing, I like addressing the power to weight aspect. (it'd be nice to pick up 1.5-2 mpg at the same time, lol.)
Long story short, I suspect the motor may have approx. 100k actual on it, sounds great, doesn't burn oil or leak and is clean as a pin. I've owned it 5 years.
I'm trying to develop my plan of attack. I'm a competent wrench and if a cam/convertor change will give me what I'm looking for, (other than freshening up the heads at some point), if I can still pass smog, that's the primary objective, with better low and mid-range gains ultimately.
Lifted and big tires is not a race truck.....agree.
The only other mod I had considered was something on the order of the Yank, (or equiv. 2600 rpm converter), I do occasionally tow a tandem enclosed bike trailer, but loved my ATI 2600 converter in a camaro I built for the street.
As for the motor, and "Maryland Smog Test" I guess that was my basic question. I just rolled 130k. Motor has never been apart, but was orig. an AZ COPO / VIP order in '00, and later long blocked under warranty due to the old piston slap warranties....
I can't believe the difference the 4.56's and the Diablo adjustments have made to the little 5.3 in a heavy vehicle like this truck! While performance is a good thing, I like addressing the power to weight aspect. (it'd be nice to pick up 1.5-2 mpg at the same time, lol.)
Long story short, I suspect the motor may have approx. 100k actual on it, sounds great, doesn't burn oil or leak and is clean as a pin. I've owned it 5 years.
I'm trying to develop my plan of attack. I'm a competent wrench and if a cam/convertor change will give me what I'm looking for, (other than freshening up the heads at some point), if I can still pass smog, that's the primary objective, with better low and mid-range gains ultimately.
Lifted and big tires is not a race truck.....agree.
Thoughts?
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