Chris' 04 Sierra 1500 Fun Daily Build

[Prokopchuk_9]

What part of Cali you from, ill talk to a couple diesel guys I kno. See if they can hook you up.

[Chris]

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

 

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[Chris]

I would love this setup.

http://www.silveradoss.com/forums/topic/81488-potato-land-build-9s140mph-goal/

 

[Prokopchuk_9]

check this out chris! guy i work with is doing a similar set up with a 409 (stroker 6 litre) in a fox body! hes using twin 66's tho! this thing literally makes me froth at the mouth.

 

http://www.chevyhardcore.com/news/project-black-dogs-twin-turbo-427ci-lsx-howls-to-almost-1400-hp/

[Chris]

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

[Prokopchuk_9]

TURBO TURBO TURBO

 

leave the blowers to the old farts runnin big blocks!! This is 2013 run a gated turbo!!!

[Chris]

If I move out of California I will turbo

 

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[Chris]

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]

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]

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

 

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[LongrangeLauber]

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]

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]

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

 

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[Prokopchuk_9]

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]

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

 

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