Turbo Wheel Lightening

BramanteCummins said:
The nose on my tool has a 1/32 radius. It should suffice. Unfortunately I can't, there's a speed sensor I'll be utilizing and there's a notch in the shaft I need. I could cut and leave an island I suppose though.
By daisy petal you're talking drilling a series of holes? I think drilling into it would ruin its structural integrity. I'd prefer to groove it or remove that material. Considering this wheel is modeled after a cast aluminum wheel there's PLENTY of strength.
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I didn't think that turbine bore was radiused.
Cut reliefs in the super back like the holes in the wheel. Leave spokes. Blend all the cuts. Pretty much just leave spines/spokes where you cut it down. I can't really find a picture that suits me

From my Not-So-Smart phone
 

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Let's consider all the R&D these turbo manufacturers put into these wheels, now, let's consider what RPM a turbo spins, next, let's consider what one of the blades is gonna do when it comes out of the turbo.

If you're aren't getting my point, it's phuacing dangerous.
 
biggy238 said:
I didn't think that turbine bore was radiused.
Cut reliefs in the super back like the holes in the wheel. Leave spokes. Blend all the cuts. Pretty much just leave spines/spokes where you cut it down. I can't really find a picture that suits me

From my Not-So-Smart phone
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That's actually not too bad a thought. Could get more aggressive with it as well. I've hit my 1/4 pound target however. Anything else is extra and an extra risk.


Astaindsoul5446 said:
What's gonna be left to remove to balance the wheel?
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There's still plenty to be removed, major diameter, and the nose still have material on the compressor.
The turbine has plenty behind the wheel and again on the nose.
 
BramanteCummins said:
Lost 70 grams here. I may groove it a tad.
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Which compressor and turbine wheels are you working with. A 1/4 pound is my goal too.

Beat68CST said:
Let's consider all the R&D these turbo manufacturers put into these wheels, now, let's consider what RPM a turbo spins, next, let's consider what one of the blades is gonna do when it comes out of the turbo.

If you're aren't getting my point, it's phuacing dangerous.
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These are competion level upgrades. Not something that someone should do on their daily driver. Anybody at this level of should plan for failures. They will happen! No guts, no glory :hehe:

And.....
One of the things that the manufacturers R&D plan for, is wheel failures. So their housings are designed to contain the parts in the event of a failure. With that being said, if you're using OEM housing you should be OK, just don't try this on a Chinese clone. I'd make sure that you have the cross bars in the exhaust too.

Personally, I wouldn't do this on a high pressure single, they're already pretty stressed. But I'm not too worried about doing it on a low pressure primary, where it's going to be well within the map.
 
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Drothgeb said:
Which compressor and turbine wheels are you working with. A 1/4 pound is my goal too.



These are competion level upgrades. Not something that someone should do on their daily driver. Anybody at this level of should plan for failures. They will happen! No guts, no glory :hehe:

And.....
One of the things that the manufacturers R&D plan for, is wheel failures. So their housings are designed to contain the parts in the event of a failure. With that being said, if you're using OEM housing you should be OK, just don't try this on a Chinese clone. I'd make sure that you have the cross bars in the exhaust too.

Personally, I wouldn't do this on a high pressure single, they're already pretty stressed. But I'm not too worried about doing it on a low pressure primary, where it's going to be well within the map.
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He551ve, Volvo series with a titanium compressor.

This is going to be a DD, and a single. The titanium will hold. The inconel should as well. I'll be sending these off for balance soon.
 
What is the plan for measuring rpm? Yeah, I know speed sensor, notch etc. Care to share any details? or Do they come stock on this titanium wizard wheel turbo? hopefully the balance guy has good things to say, not "its gonna splode! dummy!" "dont do it" etc.

I do believe in taking precautions for safety, but I think it will be a good enough test when the boots blow off the first time, and it doesn't explode.
 
jakerc69 said:
What is the plan for measuring rpm? Yeah, I know speed sensor, notch etc. Care to share any details? or Do they come stock on this titanium wizard wheel turbo? hopefully the balance guy has good things to say, not "its gonna splode! dummy!" "dont do it" etc.

I do believe in taking precautions for safety, but I think it will be a good enough test when the boots blow off the first time, and it doesn't explode.
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All of the vgts come with them, this ones just extra special haha
 
Something to read for wheel lighteners.

BTW, I have never seen any lightened wheels in racing engines, in what kind of competitions are they used and at what level ?
 

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Leiffi said:
Something to read for wheel lighteners.

BTW, I have never seen any lightened wheels in racing engines, in what kind of competitions are they used and at what level ?
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Good read, answers a lot of my questions from earlier. I'm curious as to how the stress will compare to the titanium against the aluminum.
 
Drothgeb said:
One of the things that the manufacturers R&D plan for, is wheel failures. So their housings are designed to contain the parts in the event of a failure. With that being said, if you're using OEM housing you should be OK, just don't try this on a Chinese clone.
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This was original unmodified Garrett GTA4702
 

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Titanium is heavier than aluminum. Although it is machined thinner due to strength. It still has more mass to rotate.
 
crackerman said:
Titanium is heavier than aluminum. Although it is machined thinner due to strength. It still has more mass to rotate.
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Correction....Ti is denser, and no, they are not always cast thinner than their Al counterparts if the aero package is the same.

Bramante, you have a whole lotta reading to do.....
 
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crackerman said:
Titanium is heavier than aluminum. Although it is machined thinner due to strength. It still has more mass to rotate.
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This isn't thin at all... Blades are thicker than the cast on my other 551. It's a HEAVY wheel. There's a reason it's getting a diet.
 
So where is this project? I thought someone was doing FEA to see if it would explode their computer screen.

From my Not-So-Smart phone
 
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