Wanted to buy HX80 or Big Brother Turbo
 

Like the title says, I would like to buy a HX80 :choochoo:( Holset ) Turbo alive or dead. But can still be rebuilt..

Or I would like a Big Brother :choochoo:( Holset ) Turbo Dead or alive. But can be rebuilt yet if need be.

Show me what you got please. if you know were to find one let me know.. I do not want a new one. Thanks Yall:tu:

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Just a little bump back to the top :humm:

Damn, what do you plan on doing with one of those..... :D

I am going to try and make a Procharger out if it, :choochoo:(them) To feed my GTP38R . or just put it on the way it is ( with a few modification of course) :tu:

What pulley ratio would you try to run? What rpm do you think the compressor would end up spinning at?

It all depends on what i want for boost. The RPMs of the compressor would be in the 55,000 to 75,000 Range. It all depends on what you want for boost. And it all depends on what the max RPMs of the turbo is. other wise it could go to pieces. :td:

I don't think you'll have to worry about overspinning it. You'd need at least a 15:1 pulley ratio to spin it at 60k rpm, if you are at 4k rpm (motor). I guess that's possible if you just use the shaft or something on the turbo side.

Do you have any actual plans yet for how you are going to set it up?

PS: Sorry I'm jacking your WTB ad.

Yes i have a plan on how i will make it work.. I will have a 8 inch Pulley on the Engine crank and a 4 inch pulley on the procharger..

I will have a gear box that i will make, That bolts on in place of the Exhaust housing and Wheel.

The 4 inch pulley that goes to the gearbox I will build, Will spine a 4.5 inch gear, that will spin a 1.25 inch gear that is on the same shaft as a another 4.5 inch and that gear will spin another 1.25 inch gear that is put in place of the Exhaust wheel, and that intern will spin the compressor. so with that gearing when the engine is at 3000 RPMs
The compressor wheel will be at 78,000 RPMs.

To get it all tuned just right from there, I might have to change pulley sizes to get it just right.

Dont worry about high jacking this thread. you are helping me by putting it to the top :tu:

Maybe it's just in my head, but that gearing sounds backwards, almost like you'd end up right back at the same rpm.

Yea i know what you mean.. Keep this in mind, there will be one 1.25 inch Gear that goes in place of the exhaust wheel.. There will be a 4.5 inch gear that runs that 1.25 gear that is on the exhaust shaft... The 4.5 inch That runs the the 1.25 inch Gear that is one the exhaust shaft, Is on the same shaft as a differant 1.25 inch gear that runs off of a differant 4.5 inch gear, This 4.5 inch gear runs off of the 4 inch pulley that comes from the 8 inch gear on the crank. make any sense now?? :s: :s: :s:

Lets say the engine is running at 3000 RPMs at the crank, the 8 inch pulley is bolted to the crank, So it is spinning at 3000rpms, that would make the 4 pulley that is feed off the 8 inch pulley spine at 6000rpms. the 4 inch pulley spins (hooked to the same shaft) a 4.5 Inch gear inside the gear box. So it spins at 6000rpms just like the 4 inch pulley.. The 4.5 inch gear spins a 1.25 inch gear. ( the 4.5" gear has a radius of 14.13 inches, The 1.25" gear has a Radius of 3.925 inches, So one turn of the 4.5" gear spins the 1.25" gear 3.6 times, Remember the 4.5 gear is spinning at 6000rpms so now the 1.25" is now spinning at 21,600rpms, Now there is another 4.5 inch gear that is on the same shaft as the 1.25 inch gear that is spinning at 21,600rpms so that mean the 4.5 inch is spinning at 21,600rpms,
So the 4.5 inch gear that is now spinning at 21,600rpms, spins the 1.25 inch gear that is on the exhaust shaft ( where the exhaust wheel used to be) now remember this the 1.25" gear has a radius of 3.925 inches and the 4.5 has a 14.13 inch radius, so one turn of the 4.5 gear spins the 1.25 gear 3.6 Times. So now we have the 4.5" spinning at 21,600rpms
which in turn spins 1.25" gear at 77,760rpms which makes the compressor wheel spin at 77,760... :ouch: :s: :s:

But i can change the output rpms by bigger or smaller with the 4 inch Pulley.

Se what i mean. :humm: :humm:

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another bump

Oh, gotchta. I missed the 8in pulley in the first post, and the fact that some were on the same shaft, and not actually spinning each other. Makes sense now lol.