3208 In-line Pump Conversion for the IDI

bbjordan

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the snout of the db2 is A bit under 2” and the 3208 is 4.75”, looking at how much would need to be bored out of the gear cover there’s enough surface area, but it would place the pump too high and it wouldn’t line up with the gear.

"It would place the pump too high" ... I'm not getting this part.

The 3208 pump shaft needs to be on the same axis as the DB2, yes? If this is the case, is there not enough room from the axis to the block for the pump? I think an adapter would be just the ticket to move the 3208 pump back into the valley, where hopefully, there is enough room for it.

Carry on with this most excellent project! ;Sweet
 

Agnem

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This is freaking Awesome. Great idea, absolutely fantast.....but as you mentioned the limiting factor is that darn pump. With this the only modification would be pump and turbos to take care of the extra fuel which is so much simpler than putting a big straight six in a truck designed for a V8.

That's not actually true. We've been offering a 205cc fuel system for a while now, based on a DB2. It's not cheap, and we've only sold 2. The problem is, once guys have the fuel, they find out all the other issues, and the projects die.
 

Thewespaul

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That's not actually true. We've been offering a 205cc fuel system for a while now, based on a DB2. It's not cheap, and we've only sold 2. The problem is, once guys have the fuel, they find out all the other issues, and the projects die.
What other issues are people encountering? The main issue I’ve had with customers running big pumps is getting enough air into the engine, but also a good enough clutch that will last at those power levels. I’ve fixed the clutch issue if you look at the dual disk thread, and I’m working on the air portion in the shop truck thread. Curious what issues those guys ran into
 

Thewespaul

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You're crazy for trying.... there someone said it..

Seriously if no one tries it'll never be proven either way. Forge ahead...
Thanks! Glad we got that one out of the way...

back when Ford painted it blue and called it their own engine.......

Interestingly this pump is red so probably came off an old fire truck, although most were cat yeller
 

Thewespaul

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This is freaking Awesome. Great idea, absolutely fantastic idea. This has got to cost less than a Cummins conversion and the reason I wanted to do the Cummins conversion was for the pump as I think the IDI engine is a good platform for making decent power at least in the sub 500-600 hp range but as you mentioned the limiting factor is that darn pump. With this the only modification would be pump and turbos to take care of the extra fuel which is so much simpler than putting a big straight six in a truck designed for a V8.

I really don't like people who tell you that something isn't possible because they can't do it. Dad and I turned an old FWD snowplow into a 4x4 tractor and while were doing it everyone one and their ******** brother kept telling us it was impossible. Well impossible has been running great and working fields for nearly 20 years now. That's why I never tell someone that something can't be done. It may be difficult and it may be expensive but not impossible.

Now as far as your gear goes couldn't you turn the inside taper of the DB2 gear out with a lathe? You could use always shim it if necessary? You could cut a slot in the shaft of the 3208 pump and key them both to prevent and movement. Is there any reason why that wouldn't work?

That’s the plan, I’d like to avoid modifying the pump snout because of this... I want people to be able to buy the lines, brackets and timing gear assembly and bolt on any rebuilt 3208. I want to keep it simple for people because that’s the best thing about these engines.

The exact reason that I put a 6.9 into my old Bronco!

Exactly!

"It would place the pump too high" ... I'm not getting this part.

The 3208 pump shaft needs to be on the same axis as the DB2, yes? If this is the case, is there not enough room from the axis to the block for the pump? I think an adapter would be just the ticket to move the 3208 pump back into the valley, where hopefully, there is enough room for it.

Carry on with this most excellent project! ;Sweet

Basically the design of the stock timing cover brought the pump up close enough it would contact the block, with a different timing case I should be able to alleviate this
 

Agnem

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What other issues are people encountering? The main issue I’ve had with customers running big pumps is getting enough air into the engine, but also a good enough clutch that will last at those power levels. I’ve fixed the clutch issue if you look at the dual disk thread, and I’m working on the air portion in the shop truck thread. Curious what issues those guys ran into
Mostly what you've mentioned, and running out of money because break/fix/try again has its limits for most people.
 

austin92

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Have you looked into the Bosch pump that hypermax uses for the 7.3 powerstroke mechanical conversion kit?


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Thewespaul

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Have you looked into the Bosch pump that hypermax uses for the 7.3 powerstroke mechanical conversion kit?


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Yep, much more expensive option and would take a up a lot more of the space that the intake manifold and turbo would share. I think its a better pump, especially for a race only application but the 3208 size really made it the simplest solution in my mind.
 

austin92

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Yep, much more expensive option and would take a up a lot more of the space that the intake manifold and turbo would share. I think its a better pump, especially for a race only application but the 3208 size really made it the simplest solution in my mind.

Yeah, I just read 300-950cc! How’s the 3208 pump coming along? You’ve gotta be 3 people or never sleep lol

There's a mechanical kit for powerstrokes?

https://www.gohypermax.com/ProductDisplay.aspx?ID=ac1c22c9-c515-4b4a-82cc-8df2dccc5adb



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Thewespaul

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Havent really touched this project since the last update. brought my measurements and ideas to my cnc guy and got a cost estimate... Ill be saving my pennies for this one for quite awhile before more progress is made, but I will make it happen!
 

Thewespaul

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And no its just me, Ive had help in the shop before but that only lasted a week or two and ended up biting me in the ass. I like to keep my operation small enough that I can take all the time I need to explain a product to a customer, or take all the time I need to help them pick a pump turbo combo over the phone. As long as I can keep the lights on by helping keep these trucks on the road, Im happy!
 

Chemgrad

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TheWesPaul planning on opening my own shop like that someday as well. Fabrication and welding shop though. Been thinking along the same lines though as far as help goes. My Dad ran a small business when I was young and I've run a small business as well and finding good help is like finding diamonds while shoveling ****.
 

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