[Zac]

Ive been wanting to supercharge something for a long time. And ive been trying to do a lot of research on a PD blower. I came across a Eaton M90 for cheap so i got it. I have a 93 dak 318 at home that i ripped the kegger off to port it. So i figured i would combine the two. I know that the M90 is too small for a 318 to spin very high and make usable boost. Im using this as a test and if it works ok, ill find an M112 to put on. What do you guys think? I cut the top off the kegger and now im cleaning up the inside. My photbucket account isnt working but ill upload the pics later today.

 

[BPKOTA98]

Interesting. :waiting:

 

[danbap]

:waiting:

 

[D-Bo24]

Ive been wanting to supercharge something for a long time. And ive been trying to do a lot of research on a PD blower. I came across a Eaton M90 for cheap so i got it. I have a 93 dak 318 at home that i ripped the kegger off to port it. So i figured i would combine the two. I know that the M90 is too small for a 318 to spin very high and make usable boost. Im using this as a test and if it works ok, ill find an M112 to put on. What do you guys think? I cut the top off the kegger and now im cleaning up the inside. My photbucket account isnt working but ill upload the pics later today.

Are you going to implement an intercooling system to it? Do you have any machining or CNC experience? You are right in the M90 being small and it will have to be turned at a higher rate which will heat the air a lot. I'm not sure what you go the M90 for but I know where you can at least get M112's for cheap. Maybe even M122 which I think is the minimum for our size engines IMHO. But you could get away with a M112. I think very highly of you for being willing to tackle this project as it will take some serious design and fab skills to get it working at its optimum. I hope I didn't discourage you, but I know there are a couple of people on here that could help you with design details and other aspects of the build if you take this project further. I'll look at the pics and see if I can give you some more suggestions.

 

[Zac]

No your not discouraging me at all. I just want to try it. I would like to use meth injection, and i have another idea for a simple air to water intercooler built in. If this works the motor is goin in my 4x4 dak. I was thinking on overdriving it enough to build decent boost, but then shutting it down at 4-4500 rpm to avoid a crazy amount of heat. Itll probably be on propane as well. The 104 octane and cooler fuel will help i think. A good buddy of mine works at a machine shop around the corner, im trading him a bunch of parts for the labour to machine the manifold and weld it back up(seeing as i dont have a TIG or spoolgun) But im going to do as much as i can myself.

 

[D-Bo24]

Well this build seems to be even more interesting now, lol! I wouldn't mind giving you some ideas once I take a look at your pics later, if you need any.

 

[Zac]

Haha, Yeah id love some ideas.

Here is the link to a few pics.
http://s378.photobucket.com/albums/oo227/Zacko_Mopar/Kegger manifold/?albumview=grid

 

[D-Bo24]

I've always felt that it would be easier for someone to adapt an M1 manifold to a PD blower so I think yours will make it a little more difficult. I know the M90 is mostly used on v-6 engines and it's obvious with how it looks compared to the manifold. Do you know if you are doing meth or intercooler? Or both? That will have an effect on the design. I could ask a million more questions, I guess it would be easier if you wanted to describe how you were going to go about it but if you plan on putting a kit together for sale, maybe you will be hesitant to do that. Either way, if it is personal, you can PM if you want.

 

[Five9Dak]

I bet it goes slower, the M90 is WAY too small. Your charge temps are going to be way up there at required rotor speeds to make a reasonable amount of boost on a 5.2L

There are major geometric constraints to properly mount a PD blower on a magnum v8. Design it for the 112, or better yet, an even bigger whipple, or you're going to end up doing it all twice.

Just a heads up, you're going to have to weld and re-drill the injector pockets if you want to use an EFI manifold as a starting point. When I finally get around to mine, I'm doing all custom or based on a carb m1.

 

[Zac]

D-BO, Im plannign to run meth and my idea of an intercooler. Im not planning to sell this as a kit at all im just doin it for my own use. The M1 would probably be better but im using what ive got. The kegger is cut apart and most of the unnecessary runners have been removed, and rough port work has been done. I need to pick a runner length so I can finish cutting them down. I dont think it will be overly critical being that its boosted. For my intercooler i will have to draw up a rough drawing on ms paint or something to show what I mean. I doubt i will be able to describe it good enough.

Five9, I know the 90 isnt big enough, but the way im building the manifold it will have a bolt on top plate, making it adaptable to different blowers. And why would i have to weld and redrill the injector pockets. Im more than likely will be on propane, so it wont matter but Im curious as to why.

I also posted up new pics from today on that photobucket link.

 

[DakFink]

you know BDS has a Blower manifold for 340-360's???

Only slight mods (which i think you can have them do) an it would fit a Magnum 360.

They are a bit pricey at $940.

 

[Zac]

I did not know that. Thanks, but in your post you also said the reason im trying this first. $940. Ill just try this first, plus what fun is just buying something,I would much rather build it myself if i can. Thanks for the idea though. I appreciate it.

 

[Grapejuice1998]

I don't know anything about this, but I was wondering...how would you plumb an intercooler with a screw type blower? Wouldn't the boost go directly from the blower into the intake manifold?

 

[D-Bo24]

you know BDS has a Blower manifold for 340-360's???

Only slight mods (which i think you can have them do) an it would fit a Magnum 360.

They are a bit pricey at $940.

I did not know that but am very interested. This is good info, thanks.

I don't know anything about this, but I was wondering...how would you plumb an intercooler with a screw type blower? Wouldn't the boost go directly from the blower into the intake manifold?

The most common method is to have the intercooler sitting in between the blower and intake valley. The air coming from the blower goes through the intercooler directly into the ports.

 

[D-Bo24]

D-BO, Im plannign to run meth and my idea of an intercooler. Im not planning to sell this as a kit at all im just doin it for my own use. The M1 would probably be better but im using what ive got. The kegger is cut apart and most of the unnecessary runners have been removed, and rough port work has been done. I need to pick a runner length so I can finish cutting them down. I dont think it will be overly critical being that its boosted. For my intercooler i will have to draw up a rough drawing on ms paint or something to show what I mean. I doubt i will be able to describe it good enough.

Five9, I know the 90 isnt big enough, but the way im building the manifold it will have a bolt on top plate, making it adaptable to different blowers. And why would i have to weld and redrill the injector pockets. Im more than likely will be on propane, so it wont matter but Im curious as to why.

I also posted up new pics from today on that photobucket link.

I am definitely interested to see the design of the top plate and the intercooler setup. It sounds like you may have everything figured out, do you have questions about any part of the project specifically?

 

[Five9Dak]

The factory injector angle places the rails too close together to fit a blower between. And thats a twin screw, the heatons have various casting tumors all along their sides. I guess if you want that ugly thing sticking way out through your hood it won't matter though.

If you start with a carb manifold you can drill them vertical, or even the "wrong way" to gain more room.

 

[Zac]

Thats good to know about the injector angle Five9Dak. I never really thought about it like that. Im just gonna weld the holes up i think though.

D-Bo24 Yeah i do have a question about my intercooler idea. I know it will help but i dont know how much. I posted up a very simple paint drawing of my idea in my photobucket album. The blue line on the bottom is a new aluminum plenum plate, just like the hughes one. The red plate is another piece of aluminum that will be at the opening of the runners and seal off the plenum. This will serve to reduce the HUGE plenum volume. I am thinking if i fill that space between the red and blue plates with coolant circulating to its own rad with a fan on it. My manifold has EGR so i was planning to come in through there with the coolant and just weld a fitting on one side where the vacuum ports are. I figure if i can keep the whole manifold cool and seperated from the hot oil in the lifter valley it will kind of combat heat. I just dont know if the air will be in there long enough to cool off at all.
The green lines on the picture are the sides and top plate that will mount the blower.

Thanks guys for all the suggestions and help guys.

 

[D-Bo24]

Thats good to know about the injector angle Five9Dak. I never really thought about it like that. Im just gonna weld the holes up i think though.

D-Bo24 Yeah i do have a question about my intercooler idea. I know it will help but i dont know how much. I posted up a very simple paint drawing of my idea in my photobucket album. The blue line on the bottom is a new aluminum plenum plate, just like the hughes one. The red plate is another piece of aluminum that will be at the opening of the runners and seal off the plenum. This will serve to reduce the HUGE plenum volume. I am thinking if i fill that space between the red and blue plates with coolant circulating to its own rad with a fan on it. My manifold has EGR so i was planning to come in through there with the coolant and just weld a fitting on one side where the vacuum ports are. I figure if i can keep the whole manifold cool and seperated from the hot oil in the lifter valley it will kind of combat heat. I just dont know if the air will be in there long enough to cool off at all.
The green lines on the picture are the sides and top plate that will mount the blower.

Thanks guys for all the suggestions and help guys.

I am assuming this coolant will have it's own pump and reservoir? From the way the drawing looks, the charge air will be hitting the top of the aluminum plate which we are hoping is cool from the cycled coolant? Unless I am mistaken, I will be honest and tell you that isn't the most efficient design. The air is going into the engine before the cycled coolant gets a chance to do what you want it to. Now I would say that you may be able to use the space between the two plates to run plumbing to a small intercooler that you want right at the exit of the rotors of the blower. You want it to do that because then the air has to go through the intercooler before it goes into the engine. If I misunderstood your drawing let me know but I know with the design I suggested to you, lots of people are running Heatons with tons of boost while keeping IAT's relatively inline.

 

[BPKOTA98]

Don't know if you thought of this or if it was brought up. you can cut all the runners out of the inside of the intake. I got an extra one of and we were thinking of removing the runners, more like a performance intake.

 

[Zac]

Yeah it will have its own pump and resevoir. Thats what i was afraid of though, the air not being in the manifold long enough to cool much. You didnt misunderstand it at all. What you said is exactly what i was trying to show. Where is a decent place to look for small air to water intercoolers? Ive found a few for GTP's and the like but they are crazy expensive. I just need a simple one that i can adapt and mount easily.

BPKOTA98 take a look at my photbucket pics, there is hardly any runners left. Haha