4.0 ohv turbo hotsides

[turbo cat]

First of all I will say again this will come with a chrysler pattern setup. A standard T3 will be easily mounted. This is not my first turbo project either. I have had a couple other turbo V6s and V8s. My 4.0 kit was completely thrown together in a weekend with whatever was thrown around. When Im done the work will speak for itself as you can see above the quality of that mig weld is fine. I will be warranting my work for 1 years. It breaks you ship it back.

As for customer satisfaction Im building a hotside its up to the customer to decide how to piece everything together. If you buy a turbo kit from anyone and your motor blows there not going to buy you a new motor thats a given. Installing speed related performance parts is at the owners own risk.

I will be doing some backpressure testing and temp testing. One thing you can also do is port the chrysler turbine housing for more flow been there done that and it did help. The backpressure @ 5 lbs with the current turbo is probally less than you would actually think but real time data is coming soon. So maybe you can keep all your questions until I have a prototype built and Im back with more info.

 

[Davis]

Just because you can put it on doesn't mean it fits!






I honestly think tho, that a little bigger turbo would not spool any slower and would offer better performance and longevity to the engine.

 

[mini274]

Hell even a T3 from a 2.3 would do amazing... and i can mig fine but that dont mean it works ive had 3/4 inch welds with support bracing and a little T3 broke em... its not all about how pretty it is its about how your penetrate....a shitty weld with good penetration can out last a great looking one with none...

 

[turbo cat]

And if one wants to put a standard T3 on it will be as easy as a drill as I have said before and now said again for the 4th time. As for your flange breaking thats a shame but I have never had a weld break(knock on wood). DId you shape the pipe to slide into the flange as I have above or did you just butt it against the surface and weld? The welds on my cobbled together kit was welded back in the day by flux cored nasty gasless wire and two years now without a crack or broken weld.

 

[RacinNdrummin]

First of all I will say again this will come with a chrysler pattern setup. A standard T3 will be easily mounted. This is not my first turbo project either. I have had a couple other turbo V6s and V8s. My 4.0 kit was completely thrown together in a weekend with whatever was thrown around. When Im done the work will speak for itself as you can see above the quality of that mig weld is fine. I will be warranting my work for 1 years. It breaks you ship it back.

As for customer satisfaction Im building a hotside its up to the customer to decide how to piece everything together. If you buy a turbo kit from anyone and your motor blows there not going to buy you a new motor thats a given. Installing speed related performance parts is at the owners own risk.

I will be doing some backpressure testing and temp testing. One thing you can also do is port the chrysler turbine housing for more flow been there done that and it did help. The backpressure @ 5 lbs with the current turbo is probally less than you would actually think but real time data is coming soon. So maybe you can keep all your questions until I have a prototype built and Im back with more info.

Whats the matter with drilling one more hole while your drilling the other 4? It would be easier for you to do it, than a customer, and would broaden your customer base. The std T3 flange fits many turbos from the size of your chrysler turbo to in some cases, holset HX40's...

Porting a turbine Housing is completely useless for everything but matching your manifold, it doesnt increase flow, as the restriction is beyond where you can reach with a grinder. The only way to get around that is to upgrade your housing, or wheel.

Take this as advice from one fabricator/builder to another, if potential customers are making requests and giving suggestions, dont argue with them, or debate them, just give them what they want.

 

[CopyKat]

I don't see why you guys are on his case. Let him build it and sell them. He's not forcing you to buy one. Has anyone here besides TC built a turbo setup on a 4.0L?

TC don't leave out the 2.9L as it uses the same y-pipe. So the smaller turbo can be used there.

The hot side for an RBV V6 is the most complex part to make. Add a down tube and everything else is a catalog buy. Maybe a bit more work on the intake plumbing.

Are you going to have to flip your manifolds for this hot side? I never did like the idea of having a hot pipe run up and around the radiator. That's why i did mine different. an AC box would totally fawk up my setup. but a non ac box is available, and I didn't have AC on my truck.

 

[turbo cat]

Whats the matter with drilling one more hole while your drilling the other 4? It would be easier for you to do it, than a customer, and would broaden your customer base. The std T3 flange fits many turbos from the size of your chrysler turbo to in some cases, holset HX40's...

Porting a turbine Housing is completely useless for everything but matching your manifold, it doesnt increase flow, as the restriction is beyond where you can reach with a grinder. The only way to get around that is to upgrade your housing, or wheel.

Take this as advice from one fabricator/builder to another, if potential customers are making requests and giving suggestions, dont argue with them, or debate them, just give them what they want.

Yes you can port farther in. I ported the entire scroll I'll get you pics and show you how but since you sound like you have done this I guess you don't need the pics As for the flange for the 5th time it will come with a chrysler 4 bolt pattern and the standard T3 should mount with the drilling out of one hole. If it is such a big concern to the customer it probally won't be too hard to drill it out on request.

AS for the hotside running up front it woulnt wrap around the radiator as I did.

 

[RacinNdrummin]

Yes you can port farther in. I ported the entire scroll I'll get you pics and show you how but since you sound like you have done this I guess you don't need the pics As for the flange for the 5th time it will come with a chrysler 4 bolt pattern and the standard T3 should mount with the drilling out of one hole. If it is such a big concern to the customer it probally won't be too hard to drill it out on request.

AS for the hotside running up front it woulnt wrap around the radiator as I did.

Your the Boss!

 

[turbo cat]

Backpressure averages 1.5:1 to 2:1 right now with the crumy hotside and unported turbo. The pressure did spike at wot to 15 over 3k in second gear due to the load/gearing. AT wot in 4th and 5th you see about 8-10 max depending on load. Once the new hotside is built i will port the turbine housing and see if it improves.

 

[turbo cat]

Well last thursday I pulled the T3 turbo and disassembled it for porting. Three hours later it was back on the 4.0 with a ported turbine housing. I actually did a large hog out of the scroll. Before you couldn't even fit your pinky into the scroll path thru the turbine hole and after you could run your thumb all the way around. In the lower gears due to the lower gearing it spools a tiny slower and mostly when cold on a flat strech. Going up a hill however still loads it up for the same fast spool. The wastegate is aligned correctly and working fine but I'm not pegging instantly to 7-8lbs and holding in the upper gears which is nice for the freeway as it feels alot less "corked up" I will check backpressure again soon and compare when I build the new hotside. in the lower gears im only hitting 3 lbs when cold but the truck pulls harder than when it was at full 5 as this is most likely a result of reduced BP. It also sounds different. Out of boost when its just spinning there it still whistles the same and during spool up. But under boost its making a whine close to a eaton blower? Sounds good anyways. I also bought a diesel truck yesterday so I will be parking the sploder soon for the upgrade work.

 

[mini274]

not raggin any more but your whining like a super charger ive had that before on a turbo and its not a good thing... the thrust bearing in the turbo is worn causing the shaft to "walk" and hit the housing be careful cause it can mess your fins up which in my case tore fins off and cracked my housing at full boost just tryin to save you some grief in the long run

 

[turbo cat]

you know Iv'e heard that too but when i had the turbo apart I checked for thrust play and bearing play and all was normal. But I will check into that. Its not a very loud whine just a slight noise and its only why the intake is pressurizing once the intake hits full boost the sound goes away. I will investigate into it worst comes to worst I have more chrysler t3 turbos laying around.

 

[mini274]

mine was only when the intake was pressurizing too and the compressor fins were hitting the housing and making a whining noise that went up in pitch until full boost which is when the most oil pressure which stabilizes the shaft... also check the paper gasket on the compressor housing as that can cause problems similar to this too but youll find aluminum shavings in your intercooler (or if not running one intake) which doesnt do well in the combustion chamber

 

[turbo cat]

been a bit. I had been a little busy. The prototype is almost ready. I'll have some pics and info in the next month.

 

[dangerranger83]

Nice to hear from this thread again and that its not dead, Ive been watching it for quite sometime.