ScoobyNet.com - Subaru Enthusiast Forum

ScoobyNet.com - Subaru Enthusiast Forum (https://www.scoobynet.com/)
-   ScoobyNet General (https://www.scoobynet.com/scoobynet-general-1/)
-   -   Is this billet or cast? (https://www.scoobynet.com/scoobynet-general-1/1045072-is-this-billet-or-cast.html)

clyne 08 01 February 2017 12:37 PM

Is this billet or cast?
 
Hi gents,

I am looking at this SC36 on ebay which should be billet right? The description says it was rebuilt and I have contacted the seller who is a breaker who doesn't seem to know much about it and also doesn't have a receipt for the rebuild. The dark colour suggests to me it has a cast wheel installed or am I wrong?

Any help appreciated. :thumb:

http://www.ebay.co.uk/itm/1623078251...%3AMEBIDX%3AIT

gazney101 01 February 2017 01:04 PM

Looks like the description was written by an ape, I'd give it a miss personally. Unless you live near by and can go and have a look at it first.
you can usually see milling marks on a billet comp wheel and I can't see any on those pics.
It also says no play in the shaft.. so it's either knackered or they're lying because a turbo always has play as that's were the oil goes when the engine is running

Don Clark 01 February 2017 01:23 PM


Originally Posted by gazney101 (Post 11915597)
It also says no play in the shaft.. so it's either knackered or they're lying because a turbo always has play as that's were the oil goes when the engine is running

Only if it has plain bearings....

Ball bearings - no play

On-the-bog 01 February 2017 01:28 PM

given the impeller has been changed its not a SC36 anymore

clyne 08 01 February 2017 02:34 PM

Cheers gents,

Think I will give this one a miss, his communication regarding it is also incoherent.

Wull 01 February 2017 03:06 PM


Originally Posted by gazney101 (Post 11915597)
Looks like the description was written by an ape, I'd give it a miss personally. Unless you live near by and can go and have a look at it first.


I think that's being unkind to apes :lol1:

gazney101 01 February 2017 04:56 PM


Originally Posted by Don Clark (Post 11915603)
Only if it has plain bearings....

Ball bearings - no play

thats wrong bud, ball bearing turbos can have more play than journal bearing units.
In fact the gtx30r on my car right now has an alarming amount of play, but has been checked and tested and well within tolerance, as it should after covering 10000miles.
the 1k mile old scr35r billet that was on before that had even more play.

If there's no play then there's no room for oil, therefore it's metal against metal.... Very bad
​​​

Don Clark 01 February 2017 05:37 PM


Originally Posted by gazney101 (Post 11915631)
thats wrong bud, ball bearing turbos can have more play than journal bearing units.
In fact the gtx30r on my car right now has an alarming amount of play, but has been checked and tested and well within tolerance, as it should after covering 10000miles.
the 1k mile old scr35r billet that was on before that had even more play.

If there's no play then there's no room for oil, therefore it's metal against metal.... Very bad
​​​

Second part of this web page

http://www.airpowersystems.com/wrx/aps_turbo.htm

gazney101 01 February 2017 06:10 PM


Originally Posted by Don Clark (Post 11915648)

skimmed through it, just salesman jibber jabber, I couldn't find anything that said there's no play in the shaft.... Because there has to be.
A mate of mine has just built a gsxr1000 turbo for the world wheeley competition, bought a brand new Garrett gtx3071r and guess what..... Shaft play.

Completely normal
the horse's mouth
https://www.turbobygarrett.com/turbobygarrett/dual_ball_bearing_turbo


All times are GMT +1. The time now is 05:21 PM.


© 2024 MH Sub I, LLC dba Internet Brands