Ebay Disco Potato
#62
mkturbo.com
iTrader: (24)
Join Date: May 2006
Location: Charleston SC
Posts: 15,177
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For reference I plan on going with a genuine 2871 when I switch to V-Bands later next year. If nothing is proven by then, and I can find a 2871 normal housing for a Begi exhaust manifold I will drive down to DiyAutoTune to get a pull with the exactly the same tune to see what the differences are. This way we will have a built 1.8 VVT motor between the china 2871 and a Garrett 2871 run on the same dynos.
#63
A bit off topic question for turbo guru gays:
when big turbo supra/mustang/etc guys refer to a turbo by mm, which measurement are they talking about?
You hear people say "he's got a 74mm turbo" and "he's got a 100mm turbo" etc......
Is that an inducer/exducer/turbine measurement?
I keep seeing videos on youtube with descriptions "80mm turbo supra".......
example:
when big turbo supra/mustang/etc guys refer to a turbo by mm, which measurement are they talking about?
You hear people say "he's got a 74mm turbo" and "he's got a 100mm turbo" etc......
Is that an inducer/exducer/turbine measurement?
I keep seeing videos on youtube with descriptions "80mm turbo supra".......
example:
#66
Senior Member
iTrader: (4)
Join Date: Jan 2008
Location: Falls Church, VA
Posts: 1,361
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It is.
I have a brand new .64 A/R turbine housing with standard T25 bolt pattern that came on my geniune 2860, but as you know, I have no use for common bolted flange peasantry. It's the same housing that's used on a 2871. Does your churbo also have a .64 A/R turbine? Ideally they would be a similar spec for comparison purposes. If I haven't otherwise disposed of that housing by the time you get around to it, we can probably arrange something for testing purposes.
For reference I plan on going with a genuine 2871 when I switch to V-Bands later next year. If nothing is proven by then, and I can find a 2871 normal housing for a Begi exhaust manifold I will drive down to DiyAutoTune to get a pull with the exactly the same tune to see what the differences are.
#67
mkturbo.com
iTrader: (24)
Join Date: May 2006
Location: Charleston SC
Posts: 15,177
Total Cats: 1,681
I have a brand new .64 A/R turbine housing with standard T25 bolt pattern that came on my geniune 2860, but as you know, I have no use for common bolted flange peasantry. It's the same housing that's used on a 2871. Does your churbo also have a .64 A/R turbine? Ideally they would be a similar spec for comparison purposes. If I haven't otherwise disposed of that housing by the time you get around to it, we can probably arrange something for testing purposes.
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