Tiger Rag

Well, we had a busy weekend, but a ton of progress. I got a set of BD twins installed on my truck and head studs too. I'm really excited about the twins as I was REALLY smokey before with an Edge Comp, stock turbo and Mach 1.5's when I'd get on it on 5x5 (not bad just everyday driving though). With the twins on now, I'm pretty darn whisper clean on 5x5 unless I lug it down a little. I guess it's time for more fuel! . We also got a set of ARP head studs installed and my confidence level is much higher with the additional boost I have now on my HO head gasket.

I have to say a big Thank You to Phil M (McMopar) for all of the hard work. He does this as a side business on our diesels and other autos and is very knowledgeable. For someone like me who only knows enough to be dangerous, he is great to work with so you learn as you go. We worked long and hard on these two pretty good size projects but I had a ball. It was great picking up some knowledge from Phil. Anyone within driving distance of Raleigh NC and needs a good diesel mechanic, check in with McMopar. He is very fair with his pricing too!

I'll keep everyone posted on the twins and how they perform. I think I'm going to step up some in injectors and I'll get a heavier duty intercooler boot kit. The stock boots don't seem to want to hold up to the additional boost.

-Matt

RowJ

-Matt, can I ask where you got the BD Twins?
-Also, How long, from start to finish, on the install?
-One last question.... Kit complete? any trips to the store for more nuts, bolts, clamps etc?

Pics?

RJ

high country

what kind of boost are you seeing with the 1.5's

Tiger Rag

I bought them locally from a guy who does sled pulls. He went once to the drag strip with big injectors and blew the head gasket doing a boosted launch. He decided to send his truck to Scheid and have it built so he decided to sell what he had done previosly. The kit seems pretty complete to me. I went through and inventoried what I had and didn't and ordered from Christian at BD. He was very pleasant to deal with and thorough. I had some great pointers from AK Ram on ordering the new adjustable actuator arm wastegate and a wastegate spacer from HTT to control boost. I've seen 52 with the 1.5's and that is what BD advertises. I think I'll try and wastegate that back just a bit, especially after I get new injectors in. The only thing I see that I'd want if I bought the kit new would be a second heatshield. I went ahead and ordered a new one since the first was a little ratty. I took the old one and wrapped it around the downpipe where it makes contact with the fire wall. The guy who originally installed them said he caught the insulation on the firewall on fire so to pull it off. I didn't want to do that so I used the old heatshield to wrap the downpipe. BTW, the head shield is for the exhaust housing of the top wastegated turbo where it gets close to the firewall. Other than the directions having a hole or two in them, it's no big deal. We kind of referred to them when we had a question anyway. I think it's a decent kit, the only really tough thing was dealing with freeze plug for the bottom turbos oil drain and lining up the plumbing so it wouldn't blow boots. I'd say that a aftermarket set of heavier duty intercooler boots would be welcome addition. I'm going to order a set soon. Let me know if I can answer any more questions, Matt

PS. hard to say on the time it took since we did head studs at the same time. I knocked the freeze plug into the oil pan so we had to drop the pan to fish it out with a magnet and that ate up a couple hours, and the weld on the old downpipe was stout....took me a good hour to 1.5 hr to get the grinder after it, then the die grinder, then the torch. It probably took us 20 hours total over the weekend to do both projects on my truck plus Phil was helping my buddy Mike D swap out his vp-44 at the same time. I'd say if you didn't have freeze plug issues or downpipe issues and doing just the twins only you could do it in 8-12 hours in one day with a complete new kit. The only issue we had with the kit is that the compression fitting they supply for relocating the heater line along the block was not the right size. Luckily Phil had one that fit. That guy has some inventory in his garage! Oh, and plan on blowing factory inter cooler boots and reclocking the turbo and those couplings to get them all to fit right so the couplings don't blow.

Mike Holmen

If your running 5X5, with no smoke go bigger on the sticks. My truck just gives a little puff on 3X3, 5X5 I can black out the hiway. 5X5 should smoke some, regardless of injectors or twins. I run 3X3 all day. The BD twins are a great for towing but they cant move enough air for big hp numbers. They spool nice and are the ticket for trucks running around the 500 to 550 hp mark

ridofpwrstroke

Mike, how do you like the mach 6's? I want to up grade from the 4's. The install for me was 11 hours. It really isnt that hard, just a lot of different things to do. I used to hit 65psi and turned down the boost. After gear swap I can only hit 50 without turning the boost back up. So i lost 8 psi of boost. My temps only hit 1200. Time for more fuel. Plus I can turn the boost back up.

Tiger Rag

Well, I've only got enough clutch for 450-500hp or so anyway with the Con-OFE, so these twins should suit my needs well. I still need to tow heavy, so I'm hoping they'll be a good setup for me. They seem like they will so far. I just need to get the new injectors in . I've got some 155 hp BD's so I'll see how they work together. I agree, I want to see a little smoke on 5x5 if I'm into it hard.

Mike Holmen

I love my mach 6 sticks. The power these things put out makes you think your driving a sports car. The truck I would guess would be a strong 12 second runner and gets decent fuel mileage and I drive her everyday. If you where close to me I would let you go for a ride. The intercooler tube keeps coming off after I hit 50psi of boost. Then power is gone. I bought a set of PDR intercooler boots and clamp kit. I have to scuff off the tubes to get everything to seal-up. I bought another set of injectors from dynamic diesel that are rated for 250rwhp. I'm not gonna put them in until I buy a nos kit. I want to crack the 1000rwhp mark with lots of drugs. I want to see how much the big bad cummin stock bottom-end will hold-up. I'm want to gonna break the 700rwhp barrier just on #2. I have about 5000 miles on everything now and still going strong.

Willy91

Twins are awsome, I just got a set from a buddy and a PDR stupid pump and installed them in my truck last weekend and I'm loving every minute with them.

Mike Holmen

I stalled my twins about a week ago at about 40psi. What a sound. A loud BAM. I haven't checked to see if I hurt the thrust bearing. I had to slam on the brakes after a idot changed lanes without signalling. PDR told me that it shouldn't hurt the HX-40 in the twins operation. I probably be the first to gernade a HX-40 running in a 3B combo.

signature600

Joefarmer made his 40 go pop (actually started pushing oil around the compressor wheel) over a B2.

That's why my 40 will be going to a new home as soon as I find time to fit an S300 in there

I'm also in the "twins for life" program. I'll never have anything else
Chris

Willy91

Ouch, hope everythings alright. Mine's an S440/BigBrother combo.

signature600

WOW, that's a lot of AIR How do they spool?

Actually, Brandon fixed it and sold the truck later. On to new challenges

Chris

Willy91

They spool retty much like the B-1 did with my old set-up. I think the pump really helps spool them.

PourinDiesel

Where did you end up dynoing them at?