carvinbassplyr
10+ Year Contributor
- 211
- 10
- Dec 15, 2010
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Waterford,
Michigan
Is/has anyone used these? Do they update the aero for better airflow since the billet is stronger, or are they the same aero as a stock cast wheel?
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You obviously fail to search. http://www.dsmtuners.com/forums/newbie-forum/426917-billet-tdo5-turbos.html
, I was hoping this thread would help answer my questions about them but it looks like I will be the guinea pig. Will keep this posted once the car is together.You probally read this also, but maybe not.I already read that..those are made by different people. I wanted to know if anyone used the 20G billet wheels produced specifically by turbo snail.
can you weigh the wheel please?
This is a common misconception about billet compressors. The metal is denser and stronger, so the hub area can be machined smaller and the blades themselves will not lose their strength...though the blades still remain as thick as the cast wheel they're modeled after for sheer durability.The fins dont look as thin as i imagined, they actually appear thick compared to the original 20g compressor wheel.
This is a common misconception about billet compressors. The metal is denser and stronger, so the hub area can be machined smaller and the blades themselves will not lose their strength...though the blades still remain as thick as the cast wheel they're modeled after for sheer durability.
Of course the denser billet aluminum is also heavier than porous cast, so it's highly likely that the billet wheel will weigh nearly the same as the cast wheel despite having a much smaller hub area.
In comparison- a standard cast MHI Evo III 16G compressor has thinner blades than any billet wheel I've ever seen, but they're also quite fragile because of the material used.
one of the billet 20g wheels that I enquire about weighed 61 grams. the MHI 20g weighs 72 grams. I think evo 16g weigh 63?? billet blades dont need to be thick. it nmay mean the material is not as good as they are advertising.
one of the billet 20g wheels that I enquire about weighed 61 grams. the MHI 20g weighs 72 grams. I think evo 16g weigh 63?? billet blades dont need to be thick. it nmay mean the material is not as good as they are advertising.
i
I checked emails. snail said their wheel is 63 grams.
and this is the kinugawa 20g pic. looks like thin blades to me.You must be logged in to view this image or video.
xxxx said:I spoke with them again and they do not balance the wheel usually....

!
here's a picture of my wheel.You must be logged in to view this image or video.
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Then you're looking at it in a completely different direction than nearly every turbo manufacturer on the planet who component-balances first and then assembly-balances if necessary. In fact, most larger-frame journal bearing turbos don't require an assembly balance at all.Makes sense as to why they wouldn't balance the single part, because the whole center section needs to be balanced while assembled.
So thats sort of irrelevant.
Bullseye Power said:Installed as-is will be fine they are pre-balanced.

intrtesting the reverse rotation wheel has straght blade tips top and bottom fins.
hopefully thats not your new 20g wheel? or are you building evo8/9 turbo?
NVM I am all confused. didnt notice the pics from kinugawa wher reverse rotation. then again didnt realise srt4 is reverse rotation turbo as well.

JusMX141 said:Then you're looking at it in a completely different direction than nearly every turbo manufacturer on the planet who component-balances first and then assembly-balances if necessary. In fact, most larger-frame journal bearing turbos don't require an assembly balance at all.
The HX40 BatMoWheel that Bullseye Power let us test in Dave's turbo last season was fully-balanced when I received it, and was advertised as a drop-in replacement. Knowing that we were going to be raping this turbo for all it has and wanting it to last, I contacted Bill Devine to see if an assembly balance was required, and he replied:
9 seconds and 151mph later, I felt confident that he was right.