GT2560R: The one with the Inconel wheel or the other one?
So as best I can tell there are two versions of the GT2560R: the 466541-1 and 466541-4. The -4 has a Ni-Resist turbine housing and an Inconel turbine wheel. The -1 doesn't. I don't know what the turbine wheel on the -1 is made of.
Both are exactly the same price. I am having a hard time finding a description of what the trade-offs are. There must be trade-offs if the price is the same and both are available. I assume the Inconel wheel is stronger at high temperatures. I am guessing it is also heavier, but since I don't know what the other material is I don't know for sure. Which one is better? Intended use is street & occasional track days at 8/10ths. http://www.boost-instruments.com/gt2560.png |
In all honesty... I think you will be okay with either. Inconel is just a different alloy that is more resistant to heat than other alloys. They are common in WRC due to the heat produced by their anti-lag systems. The Inconel wheel depending on the alloy will add more cost typically. Ceramic is bad...
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The fact that they cost exactly the same is what's confusing me more than anything.
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Actually, the Inconel -4 CHRA is slightly cheaper (<2% difference, but still) than the -1 CHRA. Full assemblies are the same price. Weird.
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You could just call the techies at Garrett. They would be more than helpful.
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The GT25/60R is the standard turbo on the Australian SP turbo Mx5. All the motorsport guys over here running 2B production sports car specify the inconnel version for durability.
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Originally Posted by autoluxury
(Post 563724)
Why not use a 2871R?
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I thought turbine wheels were typical made of Monel. You should PM JKav, I'd love to hear the answer.
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Originally Posted by y8s
(Post 563732)
why not date men?
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Originally Posted by luigi
(Post 557866)
You could just call the techies at Garrett. They would be more than helpful.
I've tried emailing a few distributors and haven't gotten a reply. |
Well Kday it seems that I gave you some less than informed advice. I apoligize. I tried to contact them and all I got was the advice to read there tech articles and then contact one of there distributors.
Globalazation has taken us from a service oriented Republic to a fuck you Corpocracy. C'est La Vie! C'est Le Guer! Sorry. |
Hey, no problem, it was a good suggestion, since my inclination is to avoid the telephone and it hadn't occurred to me to look for a phone number.
It's peculiar that this is not common knowledge though. Maybe I should cross-post it on m.net? |
Well, I ended up getting the -4 version. Here it is next to a broken 2560 out of a Nissan, note the different casting for the turbine housing. I don't know if this was a running change for both the -1 and -4 turbos or if it's unique to the -4.
http://www.boost-instruments.com/wor...7-1024x679.jpg |
Considering the kinds of EGTs a lot of people run, I would jump at an inconel wheel.
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