Recently I became the owner of a 26' gooseneck flatbed trailer. Its awesome having such a piece of equipment. I can haul multiple pallets of pellets home from the store at once, haul the tractor around for side jobs etc. The heaviest load I have towed is 4 tons of pellets for our pellet stoves in our home. 8K pounds plus my truck that weighs 7100 plus the trailer I'm guessing is around 2,500 or so. Just rounding up to 18K pounds...my truck did "OK" up the grades. Steepest grade to pull going home was 5% for 2 miles. Started out at         65mph at the bottom and was barely doing 35 at the top. If I go with twin turbos it would purely and solely be for the added power for towing, I tow barely enough to notice the need for twins. 

 

The main point of this post is to determine whether or not I actually should get twins. Is it worth it? Will I loose my longevity? Pros & Cons?

 

What I don't want to have to do:

 

*Replace the head gasket with some special one

*get crazy stiff valve springs

*change the tappets

*aftermarket intercooler

*Go over 600 horse

 

What I'm willing to do:

 

*go up to 150 HP injectors

*Install ARP 425s

*Install mildly stiff valve springs

*spend the $$$ needed to PROPERLY get my truck compound turbos. 

*Use my HX 35 as the small turbo

 

 

Thanks for reading and I'll check back in a couple days for replies. 

Edited November 12, 20168 yr by crf450ish

5 hours ago, xxTJRocksxx said:

@TFaoro, I agree with you on the intake, I am waiting for parts to put my big cone on near the stock location, there's no support bracket for this setup, the fabricator told me he makes them for the next size turbo (S475) and up. 

 

Yes he he sent a K&N with the kit

 

I have the the quad set to defuel at 40 psi boost, and it gets there quickly!

 

Arp studs are on my Christmas list, what springs you guys recommend?

Hmm... not sure I would trust a 50+lb turbo hanging off the back of another. Are you using the stock manifold?

 

K&N =  

 

I wouldn't rely solely on the defuel settings to hold the boost back. Under stock fueling it still might pull past 40.

 

Anything cheap around 100lbs. Shouldn't need anything specific if you aren't running a high lift cam. 

1 hour ago, TFaoro said:

Hmm... not sure I would trust a 50+lb turbo hanging off the back of another. Are you using the stock manifold?

 

K&N =  

 

I wouldn't rely solely on the defuel settings to hold the boost back. Under stock fueling it still might pull past 40.

 

Anything cheap around 100lbs. Shouldn't need anything specific if you aren't running a high lift cam. 

The turbo is an S366, I weighed both turbo's with the hot pipe bolted up and it came in at 35lbs. Yes stock manifold inverted, and I agree with you, but that's all I got besides my foot and the factory waste gate until springs and studs come in.

4 hours ago, xxTJRocksxx said:

The turbo is an S366, I weighed both turbo's with the hot pipe bolted up and it came in at 35lbs. Yes stock manifold inverted, and I agree with you, but that's all I got besides my foot and the factory waste gate until springs and studs come in.

There is no possible way both turbos and the hot pipe only weigh 35lbs. 

The HX alone is over 25lbs by itself. I've shipped two of them, and including the boxes they were closer to 35lbs. The 66 is likely around the same weight as the hx considering it is larger, but does not have wastegate components / casting. 

 

If you consider an s475 you're talking about 52lbs hanging off the back. I'd be worried about cracks / bending in the hot pipe, and cracking the stock manifold since they are fairly common to crack under stock weight. 

 

You could easily make a bracket to mount to the drain on the turbo and support it off some of the manifold bolts. 

your right, the 366 and the hot pipe weighed 35 lbs, my mistake. I agree with you 100%, and when it inevitably cracks I will fabricate something.

On 11/12/2016 at 2:27 PM, Wild and Free said:

 

With his 4.10 gears it shoul

On 11/13/2016 at 0:56 PM, Wild and Free said:

 

 

Having run both the BD super B with 90 hp injectors and edge comp and then running an II Silver 62 with 155 hp injectors and an HRVP44 with hot unlocked comp with an auto and 3.54 gears if I shifted it manually to keep the rpms up a bit higher as would be the case running lower gears then the power would come on a ton sooner versus running it in automatic it would dog and spool a lot slower and smoke a lot more if the rpms were not as high to start with.

I can light my 63 b4 1500 Rpms I got 20± by 1800 ish depends on tune and fuel settings I normally don't see over 15lbs and it's a pretty interesting watching my truck run I'm still getting used to this turbo it still surprises me from time to time first night I had it in drive on edge 3 fuel and romped on it i remember seeing 40+ boost and never hit 1350 get and pulled hard this truck likes to be driven hard not babyed around like I tend to I normally use less then 35 precent throttle in tune 1/5 fuel or 4/1