Twins (Compounds) Build!

How to make it go fast

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Re: Twins (Compounds) Build!

Postby PToombs » Mon Nov 04, 2013 6:23 pm

Eric, that makes sense too. The farther you push it the more coils you are pushing so the harder it gets.
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Re: Twins (Compounds) Build!

Postby RCCUMMINS89 » Mon Nov 04, 2013 6:42 pm

A little spring "training"

A standard rate spring is (making up numbers) let's say 100 pounds per inch. This means that at 1/2" compressed it holds 50 pounds. So if you set the pre load at .75 inch compressed........the spring won't move until 75 pounds. At 2 inches compressed it will start moving at 200 pounds.

A progressive rate spring is a spring that is rated in x pounds per inch, per inch. Meaning that (making up numbers again) at 1 inch it may hold 100 pounds, but at 2 inches it may hold 300 pounds. A progressive rate spring is either (usually) a spring that has progressively thicker coils or sometimes is as simple as a conical spring.
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Re: Twins (Compounds) Build!

Postby PToombs » Tue Nov 05, 2013 5:51 pm

I guess I was wrong on how a standard rate spring moved, or worked. I knew how the progressive worked though.
Thanks Eric.
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Re: Twins (Compounds) Build!

Postby PToombs » Thu Feb 05, 2015 6:28 pm

I didn't realize I never updated my thread when I swapped out the small turbo last spring. I bought a new 12cm housing, blank outlet cover, and an adapter to 3inch. I drilled out the divider thru the wastegate hole, welded the adapter into the cover, and put the 12 housing on my H1C with the HTT Stage 4 kit. I swapped the turbos, and did some tuning. It made a big difference, now it lights down around 1700 rpm, spins the tires, goes sideways off the off ramp to work, and is a really fun truck to drive.
pete

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Re: Twins (Compounds) Build!

Postby DMan1198 » Thu Feb 05, 2015 6:51 pm

So I'd be right in thinking my hybrid will be a good secondary in a compound setup. I'm going to working on getting a gooseneck, and trailer, so I can haul The Roo Hunter to sop. It's not that I wouldn't like to drive it. It's just that I'm not sure I trust it to do the 2300 mile one way without any issues. Hopefully I'll have compounds, and some other goodies by then too
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
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Re: Twins (Compounds) Build!

Postby PToombs » Fri Feb 06, 2015 5:57 pm

Wow, that will burn tons of fuel. :shock: You might better work on it another year and drive it to get it ready and make sure it will make it instead of hauling it out there. It would be different if you were selling it or getting it worked on, but that's a long way to haul it just so we can see it. JMO. ;)
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Re: Twins (Compounds) Build!

Postby Remps » Fri Feb 06, 2015 6:35 pm

Yeah dude, it's a frikkin 12 valve. Change the oils and filters and give er! I bought my D250 sight unseen for 1400 bucks and drove it from southeast Ontario to Alberta. Checked the fluids a couple times.
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Re: Twins (Compounds) Build!

Postby DMan1198 » Fri Feb 06, 2015 7:02 pm

Very well. I'll work on it, and bring it year after next. I've got to figure out why the cruise stopped working, and fix it, so it's not so hard on my foot.
Ducati- professional nap taker, and thread derailer extraordinaire
Brownie: 80 dodge heavy half. Ghost cummins under the hood, and some sinister plans
The Roo Hunter: 93 w250, lifted, 2 whistle machines, and a bunch of other go fast goodies, uhh..... not there yet
Jaeger: 12 ram 3500. Lifted, exhausted, and fed an excessive quantity of air
The Huntress: 02 Jetta TDI. No muffler, egr, horsepower
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Re: Twins (Compounds) Build!

Postby swank » Sun Feb 15, 2015 9:15 pm

Pete! What's that red hose for in the first pic? Is that your blinker fluid line?
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Re: Twins (Compounds) Build!

Postby PToombs » Mon Feb 16, 2015 6:43 pm

Dave, that's the air hose for my horns, one is there and the 2nd is on the other side. They are mounted where you see the hose go in, and end about an inch above the bumper. They have a nice deep tone. ;) :mrgreen:
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