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2018 Sierra 6.2 Cam or Nitrous?!?!

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Old Jul 2, 2019 | 08:47 AM
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When your putting around town and sitting in traffic will all the fan boys hear your nitrous and give you thumbs up? Nope, but they will hear your cam and know you're the baddest mother fer in town. LOL I have a tuned lightly modded 6.2 and pull away from modded diesels and gas trucks all the time, even some "sporty" cars. These trucks make plenty of power and move out nicely, toss a cam in and post some videos of how sweet it sounds.
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Old Jul 2, 2019 | 11:28 AM
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And it's so funny I'm polar opposite. I like being total stealth lol. Threw my Whipple sticker in the trash. Stock exhaust. Love sitting at a light, company signs on my truck with some kid in a 5.0 revving his engine and me slipping it into 4wd. B-bye...can't stop smiling And yes those 6.2's are the real deal it's a wonderful age we live in!
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Old Jul 2, 2019 | 02:59 PM
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flaunt it if ya got it.
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Old Jul 2, 2019 | 04:49 PM
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I agree with Ted. I like the exhaust but that's all i like to show off.
The traction bars will be coated black, if/when go the procharger i was planning on getting the quiet gears, nitrous would purge under the truck.
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Old Jul 2, 2019 | 07:14 PM
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Originally Posted by Choda
flaunt it if ya got it.
LOL you got a good point Choda! If I did that though I'd walk around with my shirt off all the time but the old white hair doesn't match the build ha ha! Guess I'm a bit conserved...but I'm old
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Old Aug 9, 2019 | 12:24 PM
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A few things. A looser converter will **** away MPG pretty bad if you do any considerable amount of stop and go driving. A large cam will too, but it will even at steady state driving since large cams have considerable overlap and you cruise at low rpm. In your other post you mentioned MPG being a big thing for you.

So I would stay on the small side of cams and leave the stock converter, since you wont need a converter with the smaller cam. In my experience with tq converters you are going to destroy the tires, which 6.2's are already known for so with a cam and stall you're gonna have a lot of traction issues. Keep that in mind also.

If it were mine I would do a smaller cam, leave the stall, and do nitrous for when I really wanted to have fun. Or cam now nitrous later for when I get used to the cam and want more.

As for bottle pressure. Man it's super sensitive to cabin temperature especially when the bottle is full. Down here in texas I was always fighting the pressure. During the daytime, even in california with your amazing weather, the truck will get pretty hot inside out in the sun. You'll have to really be careful with this on a full bottle because it'll get real high on pressure and pop the pop off valve. Then you'll have a cabin full of nitrous and an empty bottle lol.


As for head work, I wouldn't on these motors. The heads flow 330 cfm out of the box stock. Guys are only seeing around 20-25 hp or so for their near $1500 port jobs. There's a thread around here somewhere where a dude did I think near 2k in head work and gained I believe it was 2 or 3 tenths in the 1/4 on a 4wd 6.2 truck. To me, I'd rather put the money elsewhere on that. That will buy the nitrous kit and give you far more performance.
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Old Aug 9, 2019 | 04:26 PM
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Thanks, some good input!!
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Old Aug 9, 2019 | 11:53 PM
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No problem man!
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Old Nov 13, 2019 | 04:26 PM
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Fab, did you ever decide on what you were going to do?

I have a 2014 CCSB with the 6.2 and similar bolt-ons as you. Just finished putting a nitrous kit on it and love it. Next step for me is probably a cam but am really happy with it right now. Truck is full weight right now and I just ran a 12.74 in it. Only difference is I'm running e85. Makes for a hell of a sleeper.
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Old Nov 13, 2019 | 05:49 PM
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Very nice. What size shot did you go with and what kit did you use?

That truck definitely is a sleeper. It looks like your every day pick up truck.
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