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Chris' 04 Sierra 1500 Fun Daily Build

Chris

By Chris
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Chris Senior Enthusiast

Chris

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City called Bakersfield. Decent sized city and the 3rd smoggiest city in the US according to the EPA

 

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Chris Senior Enthusiast

Chris

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I am leaning towards spinning a whipple to 10 or so PSI. I will not get crazy until I get a new daily driver

Chris Senior Enthusiast

Chris

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If I move out of California I will turbo

 

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Chris Senior Enthusiast

Chris

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I liked what I saw with Silverado SS's and the STS but I will want the biggest turbo they offer. I asked black bear which I'm b3tter off with

 

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LongrangeLauber Senior Enthusiast

LongrangeLauber

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Is STS the company that makes a TT kit for GTO's? Those produce like 650-700 HP at the fly. That would be amazing

 

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Chris Senior Enthusiast

Chris

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Problem is from what I read on vette forums is the rear mount single turbo has lag.

 

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LongrangeLauber Senior Enthusiast

LongrangeLauber

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I am no expert on any type of forced induction, but it also depends on how big your turbo is. Not really sure of advantages or disadvantages of rear mount or front mount or any other type of turbo haha

 

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Chris Senior Enthusiast

Chris

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Bigger turbos put out more boost but are slower to spool. Rear mounts are away from thr engine and the exhaust has to get to the turbo then the compressed air charge has to go all the way to the front. So a little more lag. The plus to it is everything operates cooler

 

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LongrangeLauber Senior Enthusiast

LongrangeLauber

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I knew bout the size and it lagging, but I learned something about rear mount turbos just now!

 

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Prokopchuk_9 Senior Enthusiast

Prokopchuk_9

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Problem is from what I read on vette forums is the rear mount single turbo has lag.

 

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Lag really has nothing to do with how much volume you have before the exhaust turbine, it depends on how smart you are picking a turbo. You experience lag with any FI set up, blowers as well. You can buy a smaller turbo it will scream down low, or a big nasty that won't make full boost until 4500rpm be super laggy but scream up top. Just like any other FI system you aren't going to make full power at all rpms, at least the turbo doesn't rob any power. Just takes micro seconds to kick in. Those who complain about lag didn't properly research the turbo the bought.

 

I would tend to stay under .80 a/r maybe a gt55.

 

My truck runs the smaller turbo in the valley, the big one doesnt start building boost until about 15psi is achieved.

 

Is a underhood system better? Yes of course but it will cost you almost twice as much and be alot more work. IMO STS are the best bang for your buck if you are trying to get to that magical 500hp line.

LongrangeLauber Senior Enthusiast

LongrangeLauber

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Or you can just build a 6.0L and get 500hp, but then you would never pass emissions

 

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