| From | Message |
Lane
Dodge Dakota
JOIN HERE
1/21/2008
16:09:58
|
 Subject: 2005 turbo 4.7L
IP: Logged
Message:
I want to turbocharge my 05 4.7L dakota. I have a turbo and I want to run between 4-7 pounds of boost depending on how much hotter it runs, but does anyone have any ideas on my fuel system. how big of injectors do I need and is a higher volume fuel pump necessary?
|
TexasTodd
Dodge Dakota
JOIN HERE
1/21/2008
17:31:29
|  RE: 2005 turbo 4.7L
IP: Logged
Message:
You have a turbo? What kind of Turbo? What size? Is it a whole system, sounds like just the turbo so far, right?
I'll tell you, you could do some serious damage with that not hooked up right, or over boosting.
YOu sure you really want to potentially destroy your motor? Think about it, oh the humanity!
Really, what a hassle fabbing a turbo for your 4.7. :-(
Tell you what, sell ME the turbo, I'll fab it out, put it on MY 4.7, and let you know what to do right, so then you could do it to yours.
So, what size turbo are you gonna sell me for what you paid? ;-)
|
Lane
Dodge Dakota
JOIN HERE
1/22/2008
17:01:46
| RE: 2005 turbo 4.7L
IP: Logged
Message:
not too much boost, i've got a fuel control unit to increase fuel proportional to boost from paxton, and ive got an idea for the blow off valve i want. The turbo is never used for a Generation III Evo Lancer. It is capable of 21 pounds of boost, but i plan on ajusting the internal wastegate linkage so it will run around 4 pounds of boost. I think the 4.7 will handle a little boost. I built a turbo set up for my friends ranger and he is running 6 lbs of boost.
|
1hotkadota
Dodge Dakota
JOIN HERE
1/24/2008
15:47:59
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Duner ran his 4.7 turbo Dak to 14psi. It blew up but it was not from boost. He had an oil problem somewhere in the motor and thats what caused the problem. You should be able to safely run 10spi I'd think.
I'm doing a turbo setup for my 4.7 right now. You should go to 24lb injectors from Ford and run a 10:1 disk on your FMU. Your going to need a voltage clamp on your MAP sensor to keep it running. As soon as your MAP sensor sees boost, it cuts fuel and your engine will start running very rough like you hit the speed limiter.
Also, where are you going to put your turbo? Are you going to do a front or rear mount set-up? I'm making a turbo manifold for my 2002 4.7 and could help you with your manifold if you need it.
What size is your turbo. If its too small you'll only make boost up to a certain point.
How are you going to run the oil lines?
|
Lane
Dodge Dakota
JOIN HERE
1/24/2008
16:46:23
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Thanks for the voltage clamp tip, which wire(s) from the MAP need to clamped and can I get the clamp from a parts store? I have a manifold for the turbo, all I need to do is run exhaust tubing to it. I'm not sure yet on where I'm going to mount it, it depends on hood clearence. I would like to put it so that oil will drain into a valve cover, and the braided steel oil supply line from the oil pressure sensor via a T-fitting where I want to put an analog oil pres. gauge as well. I don't want to mount it under the truck because A) that will require a scavange pump for the oil B)I go off-road in the hills and mountains and I don't want to beat the turbo up on rocks and logs and have it hang up on sagebrush and stuff and risk and oil leak and C)I don't want to have to build a snorkel set up. The turbo is in the mail so I don't know where it will go yet but thats what I'm thinkin' if it helps you at all.
|
1hotkadota
Dodge Dakota
JOIN HERE
1/25/2008
11:49:44
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Dude where did you get the manifold? I've been working on one recently and its a real biatch to get right. Is there any way you could send me a picture of it. I'm really interested in seeing it.
Yeah if you go off road you will want to mount it under the hood. I'm not sure about the 2005 but on my 2002 the passenger side is the best place.
The voltage clamp can be purchased online somewhere through a turbo performance website. I can't remember which one but when I do I'll post it up on here. There are 2 versions with the more expensive one being adjustable. But its only about $80 for the adjustable one.
As far as routing the piping, I'm going to just cut the pipe coming from the drivers side exhaust manifold and route it into the passenger side manifold that has an up-pipe to the turbo. Same set up as Duner but just a different manifold.
Keep us updated dude and send me some pics of the manifold. Dakota-Durango.com has a lot of good info on turbos for our trucks plus you can post pictures. I'm on there as well and have some pics of my manifold up there too. You should sign up so we can all see what ya got.
Where do you live dude? I'm in Arizona.
|
Lane
Dodge Dakota
JOIN HERE
1/25/2008
14:03:00
| RE: 2005 turbo 4.7L
IP: Logged
Message:
As for my exhaust piping, my idea is basically the same as yours i think that is the easiest way to go. There may be room on the 2005 for the turbo to be mounted where the factory air box is.
The manifold is made for the turbo and fits some tuner car and is drilled and tapped for a pyrometer, but it looks like I will have to make very little modification for it to work.
When you re-route the the tubing coming off the manifolds are you going to chop the cats off? I'm from Wyoming and we don't have any emissions tests so I can get away with it, don't know about AZ though. Except for the turbo, the '05 will be straight piped.
I'm from Wyoming, but right now I'm going to college in Arizona.
|
1hotkadota
Dodge Dakota
JOIN HERE
1/25/2008
15:09:24
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Right on dude. Yeah I have to keep all 3 of my cats but it won't be that hard.
What college do you go to? I'm in Phoenix so if your here we should meet up some day.
The only problem I can think of with the manifold is whether or not the bolt holes will mount up right.
My turbo will be mounted where the air box was so yours should fit as well.
|
Lane
Dodge Dakota
JOIN HERE
1/25/2008
15:35:31
| RE: 2005 turbo 4.7L
IP: Logged
Message:
I'm in Prescott, the manifold is not what your thinking of I don't think. It doesn't bolt up to the head. It is just a piece of exhaust tubing with a flange for mounting the turbo, there is a little more to it than that but you get the idea.
|
Lane
Dodge Dakota
JOIN HERE
1/25/2008
16:25:38
| RE: 2005 turbo 4.7L
IP: Logged
Message:
I was doing some thinking, if instead of using a Blow Off Valve use a By-Pass Valve. Usually the air that is by-passed is sent to the intake and back thru the turbo, you probably know this, however if you run the bypassed air to the exhaust after the turbo and take the cats off, you will be putting more oxygen into the exhaust and thus fooling the sensors at an exhaust shop. I'm not sure if this will work or not, but it may be worth a shot. I know when I took my cats off I got WAY better gas milage. If there there are sensors before and after the cats just make sure they are spaced the same distance apart. That is what I did and the ECU didn't catch it.
|
Lane
Dodge Dakota
JOIN HERE
1/25/2008
16:27:31
| RE: 2005 turbo 4.7L
IP: Logged
Message:
I was doing some thinking, if instead of using a Blow Off Valve use a By-Pass Valve. Usually the air that is by-passed is sent to the intake and back thru the turbo, you probably know this, however if you run the bypassed air to the exhaust after the turbo and take the cats off, you will be putting more oxygen into the exhaust and thus fooling the sensors at an exhaust shop. I'm not sure if this will work or not, but it may be worth a shot. I know when I took my cats off I got WAY better gas milage. If there there are sensors before and after the cats just make sure they are spaced the same distance apart. That is what I did and the ECU didn't catch it.
|
1hotkadota
Dodge Dakota
JOIN HERE
1/25/2008
18:02:14
|  RE: 2005 turbo 4.7L
IP: Logged
Message:
The main reason I haven't and won't take off my cats is the $2500 minimum fine for messing with emission control devices. Also, the government is thinking about instituting a nation wide testing program so Wyoming might get regulated too.
I think if there is too much oxygen in the exhaust they will think its unburned fuel and could possibly fail. Luckily around here they only check the computer for codes and don't sniff the exhaust unless its an older vehicle.
I'm curious, how are you going to get the exhaust into the turbo? You just gonna T off from something?
|
Lane
Dodge Dakota
JOIN HERE
1/25/2008
18:44:06
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Well, I can understand that, I wouldn't mess with it either. It would be a shame if WY was affected. I would have to do some quick fabrication to pass a test. It is better for the enviroment, but I would rather have better exhaust flow.
I'm going to run exhaust tubing from each manifold into a collector and from the collector to the engine compartment to the turbo mounting flange.
Keep in mind I don't have the turbo yet so I'm not quite sure where it will fit and this may change as needed to make it all fit.
|
1hotkadota
Dodge Dakota
JOIN HERE
1/28/2008
07:49:49
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Dude I've changed my original idea for my set up so many times I can't remember what the original one was.
You also have until 2010 before you get emission checked anyways so go for it for now and in 2010 see what you have to do. As long as your computer isn't throwing codes they won't check much except for your turn signals and whatnot. Up in Prescott they don't do emissions anyways.
Sounds like you have a good idea that will work. Go for it.
Are you going to use an intercooler?
|
Lane
Dodge Dakota
JOIN HERE
1/28/2008
15:46:33
| RE: 2005 turbo 4.7L
IP: Logged
Message:
I might use an intercooler later, but I don't have the money for one now...you know how it goes.
|
DSW
Dodge Dakota
JOIN HERE
1/29/2008
01:20:27
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Hey Lane,
If your going to do the turbo setup, make it emission legal,,, trust me on this one.
In the 80's I built a V8 S-10 when I lived in rural AZ. I was into drag racing so it had no emission control devices. It was cool until I went to college in Phoenix and I had the hassle of keeping it registered in my home town because of the emission problem. After college I moved to a state with emissions and had to get "creative" to get it registered,,, don't ask. I loved the truck, but finally got rid of it,,, emission illegal was one of my main reasons for getting rid of it.
Good luck with the turbo project!
|
RAMMER
Dodge Dakota
JOIN HERE
1/30/2008
15:20:11
| RE: 2005 turbo 4.7L
IP: Logged
Message:
i turboed my ram,and went through emmissions with out a problem.the guy didnt even look under truck for the cat.i think if u have 2 cats then joins into 1 u might be able to either split off after turbo and run like that or just put a big high flow cat in and o2 sensors before and after.as long as you dont have any codes,and you do have a cat.,and gas cap is good...it should pass without a problem.
i had an 79 mustang with no emmission stuff and i got creative and got it registered where no emmissions was reguired and had my home as the mailing address. what they dont know wont hurt them. good luck.
|
Lane
Dodge Dakota
JOIN HERE
1/30/2008
16:40:38
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Thanks for everyones input. I was also wondering if anyone knew where to get a pillar gauge mount for a 2005 Dakota.
If so, please let me know
|
1hotkadota
Dodge Dakota
JOIN HERE
1/31/2008
11:20:52
| RE: 2005 turbo 4.7L
IP: Logged
Message:
I don't think anyone makes them yet.
|
Lane
Dodge Dakota
JOIN HERE
1/31/2008
20:35:30
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Thats what I thought, but I thought some one would know of some obscure company.
|
GraphiteDak
GenIII
2/01/2008
23:13:58
| RE: 2005 turbo 4.7L
IP: Logged
Message:
Take a look at these two videos.
This first one is what happened when you have oil problems and go through learning how to tune an engine.
This was Rammer's 318 after we got done with it...
http://www.youtube.com/watch?v=D8sZKp_jPUc
And this one is after we got the 360 in and he got a FMU from Duner that helped a lot!
http://www.youtube.com/watch?v=SwhmNR1OLXU
As for where you dump the excess pressure from a Blow Off Valve, you never dump the COMPRESSED intake charge into the exhaust.
I think what you are thinking about is some of the turbos actually have a BUILT IN blow off valve that blows compressed intake charge back into the inlet of the turbo. I have a mercedes turbo that's made like that.
Then the wastegate in the exhaust side is a seperate deal that just opens at a certain PSI of sensed boost and allows some exhaust gases to bypass the TURBINE and go directly into the exhaust OUTLET to prevent the turbine from speeding up any further and creating an overboost situation.
The blow off valve ONLY opens when you let off of the throttle, your throttle blades close and your intake manifold is in a vacuum. The vacuum pulls the blow off valve open and dumps the built up pressure either to the free air or back into the turbo inlet just to prevent damage to the turbo when the throttle blade closes when in boost.
Anyway. Have fun watching those two videos.
|
| | P 1 Next Page>> |
