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Trippi's Hummer the Final Chapter (Eye Candy on page 36 & 52)


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I'd be more concerned about just belt stretch/breakage than actual pull on the engine, it's not like he's powering these with a little 4 cylinder.

At startup, it's going to take a couple 2-3 seconds for the field current to get the alts up to charge at 15.8V from first fire. That is also not going to be at a full 100% draw on the alts unless the batteries are completely depleted.

Now just to do some out loud thinking/typing:

In electrical power, 1HP = 746W

So since P = I*V, and these are 300A alts (IIRC?)

We can say 300A * 15.8V = 4740W

4740W * 12alts = 56,880W

56,880 / 746 = 76.247

So the alts will in a sense be stealing roughly 76HP from the engine to run at full draw.

Gotta remember, when the alts aren't turned on the resistance they provide isn't ungodly, I know I could turn mine just fine.

Funny...I was just thinking about doing this math when I scrolled down to your post :D

The thought just hit me....damn with 12 Alts, that must require a lot of HP to run at full tilt.

Considering the Alts aren't 100% efficient either, they probably draw a bit more then that as well.

I wonder what a Hummer engine (6.0 liter I believe) does at idle?

Suppose those Alts would stall the engine if you hit the system at idle........... :trippy:

I'll just leave this here.

1465216_10151969089243349_109847518_n.jp

Also, the 76 amps of draw calculation is off because alternators aren't 100% efficient. It would be closer to 150 HP to turn them, which also does not include any other engine driven devices like water pump, power steering, emissions, etc.

Nice diagram Sean, hopefully iraggi setup something to be able to reduce/control the alts for certain circumstances. We'll see when I get it back I guess

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  • 2 weeks later...
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I dont think a ubl is needed although it'd be nice just have a mod go tgrough and clean up the bs you know?

http://www.youtube.c...e1?feature=mheehttp://www.stevemead...87#entry1993187

JVC KD-R530 head unit

VVME INNO-D1500 sub amp

Kenwood KAC-8402 amplifierPioneer 2-way 6.5 X2 @ 4 ohms

DTI Audio 6.5 X2 @ 4 ohmsbox: 4.24 ft^3 tuned to 61 hertz (port walls fell off and dissapeared :( )

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thats easy for you to say you dont have 105 pages of bs to go through.

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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Oh come on n8, you know you have nothing better to do than cleaning up after the lame and immature haha

DC SOUND LAB NUT HUGGER

Currently Own
4 - 18" lvl 6s (m3) w/full Carbon Fiber option

2 - DC 5k

lvl 4 motor

lvl 2 motor

On 8/2/2013 at 8:13 PM, n8ball2013 said:

this is much worse. Its old n8 without the time or patience to hold fucking hands. I'm supposed to be doing school work but yet here i am making sure jr fuck fuck isn't trying to poke the other kids with a stick.

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  • 3 weeks later...

damn this thng aint done yet? lol

NOVEMBER 2008 SYSTEM OF THE MONTH!

ORIGINAL YUKON BUILD!

TEAM DTF

TEAM Rival Mobile Electronics

TEAM Xs Power

94 yukon

12 Rival C15s

50+ Boston mids and highs

15 Xs power D2400

600+ ft of 1/0

10+ gallons of resin

99 Silverado.

4 15" Treo SSX

Stetsom 14k2d

5 CD tech batteries

155+ daily

Team DTF

"did you just drive past my house in your stupidly loud car. if it was you, you knocked a vase off my fire place."

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