Diesel Bombers - compound turbo ideas

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Quote:

Originally Posted by joe6 (Post 692902)

What are you running for fuel?? hx35/s475 should be good to 550-600hp. maybe a little more. 35/472 will be a little less and offer quicker spool up. should be able to get the s475 and piping for around $1900. Studs will be another $400. Depending on your fueling you'll see anywhere from 55-75psi of boost. I'd also be thinking about oringing the head and getting 110# valve springs. Just remember you need to tune twins after you install them!!:c:

well I believe your a little high on your hp estimates running a stock hx35 for the top. my compounds are 62/71/14 over the s475 with 1.35 housing with ddp 200's it was 575 ddp 250's 601 and with lightning 3's is made 683. the so pump is a good pump and they last been abusing mine for 3 years now but with 20psi steady to it and 0 issues.

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Quote:

Originally Posted by Scott@Alligator (Post 693931)

Hmm im building over 500 with a HO pump and a single turbo

yeah but your pretty much maxing it out they will make more than 500 but not a whole lot more. have seen a truck gain 50hp just by doing a so swap being only change same day

Yeah your prolly right but I cant wait to see what it does with the twins on it

just what I have seen myself is what I am basing my info on.

Quote:

Originally Posted by Scott@Alligator (Post 693931)

Hmm im building over 500 with a HO pump and a single turbo

Uncorrected?? Do you have a dyno sheet also.. Not saying it can't happen. Its just farely rare

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Quote:

Originally Posted by Scott@Alligator (Post 693950)

Yeah your prolly right but I cant wait to see what it does with the twins on it

You probably wont see much of a gain over running your single... If you swapped to an so pump you'd have alot more room to grow.

01Quadcab- I think I'm a little over the hx35's limit... it'd be more like 500-550hp. An I never said anything bad about the so pump.... I actually said they were better than the ho. I personally would never run anything but an so... Unless I did a ppump! :choochoo:

Quote:

You probably wont see much of a gain over running your single

I bet he will. To make power you need fuel and AIR. If you have enough fuel, add more air. I noticed a good bit of extra jam out of my rig when I put COMPOUNDS on it.

what is the difference between the ho and so pump? never heard that.

https://www.dieselbombers.com/5-9l-2...o-vp44-ho.html

Quote:

I'm not sure on the exact measurements, but I think the HO pump has 7mm plungers in it while the SO actually has 7.5mm plungers, which is probably why they are capable of more power. I believe the HO pumps used higher fuel pressure to help boost the power a bit, but actually used slightly smaller injectors than the SO engines as well.

:tu:

i didnt think the vp had plungers. i have a performance pump in my truck. does that mean its a bigger one.

I'm not too sure what has been done to your pump. Cams, Rings, and plungers can be modified to push more fuel. Exactly what is done, I am not sure.

the vp-44 is a rotery type pump. i dont think it has a cam and plunggers. iv rebuilt one myself. the old ppumps were built that way but i dont think the vp is.