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Zero
Dodge Dakota
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1/31/2002
10:43:07
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 Subject: 5.9 Twin Turbo RT
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Dose any one out there know of any one who has
pulled off a Twin turbo 5.9 Dakota R/T??
If so i would like to see some pic's.
I am trying to gather some info to fabrcate a
system and some details and referance could be nice..
Thankz
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MikeD
Dodge Dakota
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1/31/2002
11:18:15
|  RE: 5.9 Twin Turbo RT
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Bernd and Duner pulled it off a project twin turbo R/T I think. Goto speedtweaks.net and check out the project page.
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Zero
Dodge Dakota
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1/31/2002
11:28:18
| RE: 5.9 Twin Turbo RT
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Thanks but that was for the V6 and now there
going to start the trials for the 5.9.
Thanks for your imput..
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Marc 99 R/T
Dodge Dakota
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1/31/2002
11:58:31
| RE: 5.9 Twin Turbo RT
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Why would you want to do that when there is almost a half dozen superchargers made for our trucks? Anytime you run turbos heat plays a major factor. And a custom fab setup will cost you way to much.
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kota on 20s
GenIII
1/31/2002
12:21:20
| RE: 5.9 Twin Turbo RT
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the projected price is aroud 4k thats about what a KB supercharger costs.
and how cool would it be to have t TT dakota?! imagine pulling into the local cruise spot, and letting off the gas to hear the blow off valve! thats a 12 on the coolness meter
Eric
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Duner
Dodge Dakota
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1/31/2002
13:06:55
|  Single works OK too
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Although this isn't a twin turbo, and it's not on a 5.9.
http://members.cox.net/duner/Turbo/RTnotTurboPage.html
Twin turbos would really look cool under the hood, but for street use a single turbo will make more boost than you could ever use with pump gas..... even on a 5.9 liter engine.
Eric - the blow off valve has scared a bunch of people already! I'm not exactly sure why, but mine is VERY loud. I was trying to get a Syclone driver's attention one night, so I backed off the throttle just as I passed his door. The guy jerked the wheel so violently when it scared him that he almost went up on the curb! hehehe
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Xphile1999
Dodge Dakota
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1/31/2002
14:54:29
| RE: 5.9 Twin Turbo RT
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Duner, WOW, that must rock, could that be adapted for the 3.9L do you think? How much adapting was needed for the T104 Turbo? Costs? How much boost is it running?
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Duner
Dodge Dakota
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1/31/2002
15:46:26
| RE: 5.9 Twin Turbo RT
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Everything other than the actual exhaust manifold would work just fine, although some sort of timing control is recommended.
A new exhaust manifold would have to be produced for whichever engine it would go on. I am working on producing kits for the 4.7 at this time, but have no ballpark pricing as of yet.
I've run it as high as 14-15 lbs on race fuel. The most boost I run on the street with straight pump gas (91 octane) is 7 lbs and that's with alcohol injection. It has run 12.76 @ 107.77 mph at the track, with 10 lbs of boost. I've gotten better Gtech numbers than that with higher boost but haven't run it at the track with more boost.... yet.
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R Middleton
Dodge Dakota
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1/31/2002
18:13:10
| RE: 5.9 Twin Turbo RT
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Here's a nice page featuring a homebuilt twin turbo v-8 setup!
setup.http://www.pentastarpower.com/feets/newpage.html
The guy is plenty friendly and he is on the "Scatpack.com" board all the time goes buy the name "Feets" seems he has done a lot of homework on the subject. Only thing might be an issue is the EFI.
Goodluck.
Middy.
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bernd
*GenIII*
1/31/2002
18:58:15
| RE: 5.9 Twin Turbo RT
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Marc99RT: Actually a twin-turbo system is more efficient than a supercharger and costs only slighty more than a Kenne Bell system (and is Liquid to Air intercooled). The heat isn't an issue with the proper coatings and heat shields. (Also taken into account on the system we're designing.) The custom fabrication isn't as hard as one would think...the factory manifolds (or custom manifolds) are very inexpensive and, if you mount the turbo's properly, requires less fabrication than a single system.
1997 Dodge Dakota SLT - V6
Supercharged/Intercooled @ 10# w/Nitrous
14.55 @ 96.01mph
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Hersbird
Dodge Dakota
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1/31/2002
23:07:02
| RE: 5.9 Twin Turbo RT
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About 10 years ago Carrol Shelby slapped together a twin turbo 340 that made over 800 HP and could idle around town all day in LA. There was a nice article on it in Hot Rod I think. They put it in a Pantera body. Turbos are much more efficient then superchargers. Look at the factory gain begot buy factory superchargers like on the 3.8 GM Reagal and Grand Prix. It's nice and all but I think most folks would more fondly remember the turbo v-6's from the Grand National, anniversary Firebird, and Syclones. That older motor was done in 1986 when pretty much every other motor put in a car that year was an peice of crap in comparison. Look at what Subie gets out of the 2.0L WRX, and that's for a low $20's pricetag with AWD to boot. Blowers are pretty awesome at giving you instant boost but crap, my stock R/T is at the limits of starting line traction already. What it really needs is to keep all the power down low and add another 100 HP and 1000 rpm's to the top end. A turbo would be a much better choice.
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YA
Dodge Dakota
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2/01/2002
00:20:10
| RE: 5.9 Twin Turbo RT
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Any efficent twin turbo street set up is going to make at least double the torque at peak output.
This causes traction loss from the mid range (tq. peak) up. New traction problem.
A large single turbo set up will help this as it won't reach peak boost until after peak engine torque.
The blower will make more of a top end rush(power) towards the top of the rpm band.
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xplikt
Dodge Dakota
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2/01/2002
00:42:08
| RE: 5.9 Twin Turbo RT
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I've thought about this as a neat project for maybe next year. I would be cool, but damn..in Montana, I have no idea what the hell I would be doing with it...so I might just buy a snow mobile instead.
It would be VERY cool though..
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Duner
Dodge Dakota
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2/01/2002
00:49:47
| RE: 5.9 Twin Turbo RT
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Anybody ever ride a CR500 2-stroke motorcycle? Imagine that powerband in a truck.
I guess I don't know what I did wrong or right, but mine makes full boost almost immediately. (Single turbo) You nail the throttle.... it makes full boost and right now. No lag and no waiting for the boost to get to a certain number. Maybe the turbo isn't big enough? It also doesn't need all that many rpms to make full boost either. The torque aspect of it is unbelievable.
I've driven and ridden in blown vehicles and they are much more linear in their boost production. You need X amount of rpms to make X amount of boost. (centrifugal blowers)
With the turbo (or at least mine anyway), you need X amount of load against the engine to make X amount of boost. It's more of a threshold issue. You load the engine and you have boost. I can get full boost way before I hit peak engine torque. It's not nearly as dependent on rpms as people tend to think.
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D
Dodge Dakota
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2/01/2002
03:08:52
| RE: 5.9 Twin Turbo RT
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Duner: have you had any problems with the
turbo setup??? It looks way cooler than a
supercharger. I just hope that you will have
pics of a 4.7 turbo install soon, and
prices...are you running an intercooler with the
turbo?
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CW
GenIII
2/01/2002
09:02:37
| RE: 5.9 Twin Turbo RT
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CR500!!!!! Do you have any parts left in that truck???? How about CR250. (at least somewhat managable.hehe;);)
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported 68mm throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Electric fan Convertion, Awaiting HO cams.
Working on adjustable fuel pressure with return.
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Duner
Dodge Dakota
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2/01/2002
10:14:35
| Torquey 2-stroke?
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D - I have pics of the turbo install here:
http://members.cox.net/duner/Turbo/RTnotTurboPage.html
I haven't really had any problems..... more like concerns. I am concerned about how much hp/torque the NV3500 trans can take. I always make sure the boost is turned down before pulling my car trailer. Even with it turned down it sometimes is kind of tricky. Wednesday night I towed a car on the trailer in the rain. I basically had to act like I was on ice the whole time. Accidently applying too much throttle would instantly spin the tires. It's not that bad when it's dry, but I still try and keep it out of boost with the trailer behind me.
I am working on an air/water intercooler system right now. I am also working on mfg sources for some of the various parts that I originally fabricated. Once that's all together then I will know what I have and how much I can sell it for.
CW - It's not as peaky as a CR250, more like the grunt of a CR500. It still acts like a 2-stroke though..... and I like it a lot!
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CW
GenIII
2/01/2002
14:23:41
| RE: 5.9 Twin Turbo RT
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Ahh I see. I have a 2000 KTM 250 exc and it is very stout down low but it is a off road bike and not a racer. What toys do tou have? Just curious. The CR 500 is a awesome dune bike from what I hear.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported 68mm throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Electric fan Convertion, Awaiting HO cams.
Working on adjustable fuel pressure with return.
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R Middleton
Dodge Dakota
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2/01/2002
14:32:18
| RE: 5.9 Twin Turbo RT
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Hey Duner, Where are you tapping into the exhaust? It looks like you're just using the pass. side bank wouldn't this create unhealthy backpressure on those cylinders?
curious.
Middy.
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Demon-Xanth
Dodge Dakota
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2/01/2002
15:31:44
| RE: 5.9 Twin Turbo RT
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Duner: try riding in a Cummins+6 speed Ram, on my dad's '99 there's alot of torque until 1500RPM (2000 if not under load) then it makes a MASSIVE amount of torque. It's a large turbo w/ quite a bit of hystresis (once on the boost it takes a bit of backing off to get back off the boost). Almost scared me when I was driving it a little while after he got it. Just cruising along in 4th: 25MPH, 26, 27, 29, 32, 36, 40 (whEEE!). No throttle change. The NV5600 shifts easier than my NV3500 (and tighter). I've found the turbos to be happiest under load (granted both were large diesel trucks) where they can fully pressurize the intake and keep the momentum up between shifts.
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Duner
Dodge Dakota
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2/01/2002
16:16:30
| RE: 5.9 Twin Turbo RT
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CW - Right now all I have for the dunes is a 250R Fourtrax. It's pretty healthy though. It's got one of my port jobs, pipe, carb and reeds. I've had a couple of CR500s and I am thinking about getting another one again. Yes, they are great dune bikes but still are more work to ride in the dunes than a quad. Sometimes I just get lazy. That and the fact that I am wanting to stay off of my orthopedic surgeons christmas card list for a while. I think I already put all of his kids thru college, no use funding his retirement also! hehehe
Middy - The turbo is run off of both sides of the engine. All of the exhaust from the drivers side comes into the passenger side manifold to combine with it and spin up the turbo. You are right that only driving it with the exhaust of one side of the engine wouldn't be healthy at all. I still use the stock exhaust manifold on the drivers side of the engine. In the photo of all the parts, the pipe in the upper left corner is what connects the two sides (wide U-shaped pipe).
Demon - Yes, it's way happy when in boost. I drive a Cummins Diesel Ram fairly often also, but it's an automatic. I've never gotten a chance to drive the 6 speed version.
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R Middleton
Dodge Dakota
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2/01/2002
20:06:19
| RE: 5.9 Twin Turbo RT
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Thanks Duner I'll have a look at it again.
Nice job!
Middy.
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Hersbird
Dodge Dakota
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2/02/2002
01:01:40
| RE: 5.9 Twin Turbo RT
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That looks very nice, very professional. You say you just kind of did this on a wim? It looks like you've been doing custom turbos all you life!
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Duner
Dodge Dakota
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2/02/2002
02:23:27
| Thanks Guys!
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Thanks Guys! You really know how to make a guy feel good!
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Zero
Dodge Dakota
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2/02/2002
11:57:48
| RE: 5.9 Twin Turbo RT
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Duner can you tweak this setup for the 2000 5.9?
you may have me convinced to go with your package for now.
Can you send me your complete specs and $, so i can spoole rightaway..
P.S.
I may have a greate source for pricy but wicked
intercooler..
2000 RT
zerokool@alternativecooling.com
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Tom Slick
Dodge Dakota
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2/02/2002
12:36:41
| RE: 5.9 Twin Turbo RT
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Speedtweaks is working on single turbo kits for the 3.9L and 4.7L, and twin turbo kits for the 5.2L and the 5.9L.
Check it out on their website...
www.speedtweaks.net
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pato castro
Dodge Dakota
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2/03/2002
13:35:57
| RE: 5.9 Twin Turbo RT
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Duner, how about post some videos in your page of your truck? I can assure you that your site would become VERY popular...
Believe me, people love videos of fast trucks, and yours is one of the fastest street trucks
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Bob Ross
Dodge Dakota
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2/03/2002
16:57:00
| RE: 5.9 Twin Turbo RT
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I dont know about any Twin Turbo R/T'ers... In the club atleast... But hopefully here in a year or 2 I can get a single turbo project going... Anyway Ill get back to you in a couple years :P
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Duner
Dodge Dakota
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2/03/2002
18:15:28
| RE: 5.9 Twin Turbo RT
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I only have a video of the very first pass down the track with the turbo on it at the Truckin' Nationals. It wasn't all that impressive to say the least. It was only a 13.89 @ 100 mph although I did manage to beat the supercharged Toyota that was in the other lane. I did manage to get it down to 13.0s later in the day with a little bit of "tuning"... Not bad for a mid 90 degree day. It runs a little better than that now ;>)
I hope to get some videos of it going down the track soon.
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dropt98dakota
Dodge Dakota
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2/03/2002
19:55:17
| RE: 5.9 Twin Turbo RT
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Here you go guys this is what you wanted, some pics of a twin turboed dakota 5.9 liter, this one born and bread in the east coast of canada in ottawa Ontario, here is the link: http://www.midnightruns.com/others/profile.asp?id=81
No it isn't mine, I got this link from someone else on one of the 5 or so dakota message boards..
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Tom Slick
Dodge Dakota
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2/04/2002
00:31:37
| RE: 5.9 Twin Turbo RT
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Look again... It's a single turbo...
It's only running 14.29 seconds @ 94.9 MPH
Something isn't right... he is either not running much boost, or the turbo is not matched up correctly (it looks a little too small to me)... plus the huge intercooler is a little on the large side...that can hurt, too...
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CW
GenIII
2/04/2002
09:07:12
| RE: 5.9 Twin Turbo RT
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I know I would be embarrased to post a boosted 14.3.
2001 RC 4.7 5sp 9.25" 3.92 LSD
Ported 68mm throttle body, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" cold air, Roadmaster active suspention, Removed Third cat. Electric fan Convertion, Awaiting HO cams.
Working on adjustable fuel pressure with return.
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1Fine5.9
Dodge Dakota
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2/04/2002
15:01:44
| RE: 5.9 Twin Turbo RT
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My buddy is putting together a twin turbo 408 R/T, it'll be ready in a few months
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Bob Ross
Dodge Dakota
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2/04/2002
18:02:02
| RE: 5.9 Twin Turbo RT
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TT stroker motor?? Thats going to be crazy.
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