[onizuka]

anyone knows that if we change the Toyota CT12A Twin turbo Ceramic turbine wheels are replaced with conventional inconel alloy what are the advantages? i mean in the power range? lag? boost level? any advantage or disadvantage changing the ceramic to conventional inconel alloy turbine wheel?

i'm asking this because that is my car setup is like that, i've bought a 95 TT JDM spec supra and when i've bought the car, both of the turbo were still ceramic and were at its end. back then,i have really little knowledge in the car modding world, thus my stock twins were rebuilt and i gave this task/decision to my mechanic. but i'm still having no idea on the material used to rebuild my twins, its advantage or disadvantage hope you guys know something and able to help me in this issue.


thanks in advance..

 

[tsuper92]

the ceramic wheel's are known to come off the shaft's at higher boost level's.the rebuild kit for these turbo's aren't cheap at all.
you could buy a low mileage set of usdm ct12b's to swap on the car(shipping might suck).most sell for around $250 us with the y-pipe and manifold's.

 

[figgie]

inconel alloy wheels?

Where are you getting this bit if "word of the day"?

Inconel is good but there are FAR better material (with the price to go along with it) that are lighter and will handle the heat better. Think along the TR30r turbo from garrett. Those are not inconel turbines.

 

[VR4Drive92]

inconel alloy wheels?

Where are you getting this bit if "word of the day"?

Inconel is good but there are FAR better material (with the price to go along with it) that are lighter and will handle the heat better. Think along the TR30r turbo from garrett. Those are not inconel turbines.

care to elaborate?

 

[figgie]

sure,

ownes development is not clear which particular turbo uses Inconel,

http://www.racecar-engineering.com/articles/rallycar/275975/boost-group-n-and-wrc-turbos.html

As you'd expect, given the specialist nature of the use and larger budgets of the WRC, turbine wheels are usually produced from pure Inconel, with heat-treated alloy being favoured on the compressor side.

Operative word is "usually".

but also notice the PRICE of the turbos in question.

WRC units cost between £6000 and £12,000,

that between $8800 and $17000!!!

 

[onizuka]

Hi and thanks for the feedback guys.. i got this word of the day from a company which rebuilds, repair and also service turbochargers in my country. they say that they are experts from germany. as for as this is concern, how much power would you guys think would be possible to be yield from the turbo using inconel material? is it able to push around 600 bph?

 

[figgie]

Hi and thanks for the feedback guys.. i got this word of the day from a company which rebuilds, repair and also service turbochargers in my country. they say that they are experts from germany. as for as this is concern, how much power would you guys think would be possible to be yield from the turbo using inconel material? is it able to push around 600 bph?

The material will not affect the flow charachteriscs of the turbo. That is a design of the height of the compressor wheel along with other dimensions of the impeller (compressor wheel).

All the inconel turbine will allow is to run higher EGT without killing the turbo. Particularly useful with a VERY agressive anti-lag system for prolonged periods of time. It will not add power, at all. So if they are telling you that it will add power AND if you believe them.

Then we can not help you.

 

[Darkfred]

You need to talk to Stu "Mr sequential" Hagen.

Check the hybrid turbo thread http://www.supraforums.com/forum/showthread.php?t=444569

 

[Femi]

Inconel is known for its excellent resistant to corrosion and heat. It has good strength and durability. It becomes more harden in cool temperature. I feel inconel is better but related to price matter I dont know. Please let me know if my knowledge on this is wrong.