2871 vs 3071
01-24-2018, 09:28 PM
#41
Slowest Progress Ever
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Lol @ 2071 and 2650.
Even Stevie Wonder could see what you did there.
OP...don't turbo anything...EVER. Just buy an Acura RSX type S and drive it to school.
Even Stevie Wonder could see what you did there.
OP...don't turbo anything...EVER. Just buy an Acura RSX type S and drive it to school.
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01-25-2018, 12:09 PM
#47
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https://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Product_Code=GRT-TBO-025
https://www.turbobygarrett.com/turbo...00382-3_20.pdf
The 56.5mm wheel is why FM always made decent numbers from their 3071R 0.64a/r setups, but everyone with a 2860RS or 2871R (54mm turbine) needed the 0.86a/r housing.
The EFR's 58mm turbine is one of the secrets behind the huge power numbers it can produce. It makes up for the loss in spool that normally accompanies that extra size by using trick materials to keep the weight and response time down.
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01-25-2018, 12:52 PM
#49
Boost Czar
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Dig deeper, padawan
https://www.atpturbo.com/mm5/merchan...de=GRT-TBO-025
https://www.turbobygarrett.com/turbo...00382-3_20.pdf
The 56.5mm wheel is why FM always made decent numbers from their 3071R 0.64a/r setups, but everyone with a 2860RS or 2871R (54mm turbine) needed the 0.86a/r housing.
The EFR's 58mm turbine is one of the secrets behind the huge power numbers it can produce. It makes up for the loss in spool that normally accompanies that extra size by using trick materials to keep the weight and response time down.
https://www.atpturbo.com/mm5/merchan...de=GRT-TBO-025
https://www.turbobygarrett.com/turbo...00382-3_20.pdf
The 56.5mm wheel is why FM always made decent numbers from their 3071R 0.64a/r setups, but everyone with a 2860RS or 2871R (54mm turbine) needed the 0.86a/r housing.
The EFR's 58mm turbine is one of the secrets behind the huge power numbers it can produce. It makes up for the loss in spool that normally accompanies that extra size by using trick materials to keep the weight and response time down.
and I wonder if it's a 10 vs 9 blade design. anyway, a standard 3071 and a standard 2871 are not "almost identical"
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01-26-2018, 09:39 AM
#51
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your engine is probably happier with a larger turbine too... less backpressure in the turbo manifold.
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01-27-2018, 11:40 AM
#52
also probably has something to do with going from an ebay turbo to an authentic turbo. was the ebay 3076 ball bearing? I haven't looked at ebay turbos in so long I wouldn't be surprised if they have the ability to offer BB now....
your engine is probably happier with a larger turbine too... less backpressure in the turbo manifold.
your engine is probably happier with a larger turbine too... less backpressure in the turbo manifold.
The engine does like the larger turbine. Interestingly I tried .63 and .82 A/R turbine housings on the ebay 3076, the .82 was a touch faster up top, but spooled a lot worse and overall the car felt slower. Car went faster at the drag strip with the smaller A/R turbine housing.
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