Truck Norris cam and trailblazer i6 converter.

JorgeS

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Installed a Truck Norris cam kit,oil pump,timing set and a Trailblazer i6 converter in my 06 Crew cab. Love the cam and the converter was exactly the perfect choice to give it a little more stall and not be too loose!
Couple of questions:
1- How did you tune it to run well with the TN cam?
2- Did you notice a significant change in MPG?

I'm thinking of installing the TN cam in my 2005 Yukon 4x4. Planning to keep the stock converter, upgrade exhaust, get a Airaid intake tube, and use an HP Tuner to tune it.
I've already opened up the stock airbox for freer breathing and I plan to keep it. I cut a bunch of holes in the bottom of the airbox and the tray, connecting it to the fender, and sealed from the engine compartment with foam. Since this is my daily driver, and I plan on taking it on trips, including out West, I want the flexibility of being able to find a clean air filter anywhere in the country. From what I've read, with the mods I did to the airbox & tray, there would me minimal, or no, improvement with an aftermarket "cold air intake" system.
 

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Eggman63

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Couple of questions:
1- How did you tune it to run well with the TN cam?
2- Did you notice a significant change in MPG?

I'm thinking of installing the TN cam in my 2005 Yukon 4x4. Planning to keep the stock converter, upgrade exhaust, get a Airaid intake tube, and use an HP Tuner to tune it.
I've already opened up the stock airbox for freer breathing and I plan to keep it. I cut a bunch of holes in the bottom of the airbox and the tray, connecting it to the fender, and sealed from the engine compartment with foam. Since this is my daily driver, and I plan on taking it on trips, including out West, I want the flexibility of being able to find a clean air filter anywhere in the country. From what I've read, with the mods I did to the airbox & tray, there would me minimal, or no, improvement with an aftermarket "cold air intake" system.
I had it tuned by my installer. He has an HP tuners account. Mileage doesn’t vary from stock. The mild converter does the truck justice!
 

DateNight

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Couple of questions:
1- How did you tune it to run well with the TN cam?
2- Did you notice a significant change in MPG?

I'm thinking of installing the TN cam in my 2005 Yukon 4x4. Planning to keep the stock converter, upgrade exhaust, get a Airaid intake tube, and use an HP Tuner to tune it.
I've already opened up the stock airbox for freer breathing and I plan to keep it. I cut a bunch of holes in the bottom of the airbox and the tray, connecting it to the fender, and sealed from the engine compartment with foam. Since this is my daily driver, and I plan on taking it on trips, including out West, I want the flexibility of being able to find a clean air filter anywhere in the country. From what I've read, with the mods I did to the airbox & tray, there would me minimal, or no, improvement with an aftermarket "cold air intake" system.

Don’t skip on the converter. It will drive a lot better. I6 tb converters are cheap and work great. I’m getting a 3000k stall built at my local converter shop for $500
 
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JorgeS

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Sorry for the slow response, and thanks for the feedback.
I'm not sure what I'll end up doing. I have too many project I've started and may put this off for a bit. The extra work of putting in a higher stall converter, and the difficulty without a lift, is somewhat of an obstacle.
Thanks again!
 

AuroraGirl

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Couple of questions:
1- How did you tune it to run well with the TN cam?
2- Did you notice a significant change in MPG?

I'm thinking of installing the TN cam in my 2005 Yukon 4x4. Planning to keep the stock converter, upgrade exhaust, get a Airaid intake tube, and use an HP Tuner to tune it.
I've already opened up the stock airbox for freer breathing and I plan to keep it. I cut a bunch of holes in the bottom of the airbox and the tray, connecting it to the fender, and sealed from the engine compartment with foam. Since this is my daily driver, and I plan on taking it on trips, including out West, I want the flexibility of being able to find a clean air filter anywhere in the country. From what I've read, with the mods I did to the airbox & tray, there would me minimal, or no, improvement with an aftermarket "cold air intake" system.
What kind of engine are you running you’re out flowing the stock box and larger filter b
Better be no direct path for water to the air filter or you’re going to hate it lol
 

JorgeS

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Running the stock 5.3, no mods (yet). You're probably right that the increase air-box capacity won't make a measurable difference; it reduces restrictions, but not enough to make a noticeable difference. I'm getting everything I can for free (except for my time)!
You make a good point about water; thanks.
The holes open up forward of the inner fender, so water from the tire should not be able to get in there.
 

AuroraGirl

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Running the stock 5.3, no mods (yet). You're probably right that the increase air-box capacity won't make a measurable difference; it reduces restrictions, but not enough to make a noticeable difference. I'm getting everything I can for free (except for my time)!
You make a good point about water; thanks.
The holes open up forward of the inner fender, so water from the tire should not be able to get in there.
Make sure the liner stays in place. My wheel well extensions for the hd chassis tire stick out are tied into the same spots as the clips for the wheel well insert. My fender is rusted badly in these spots. The clips that holds to the tray below the air box is doing a lot of heavy lifting
 

JorgeS

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Yes! Fender liners are important for many reasons. Thanks for the tip; I'll be sure to look at the attachment points.
This truck is in fantastic shape from the rockers up and interior like new; below, not horrible, but not great. I don't understand it; almost like it was stored in a dirt-floored garage that was always wet.
 

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