gt2871r .86 housing swap with 2560r

[hungryjoseph]

I have an s14 t28 and I am looking to buy a 2871r with a .86 a/r. I did some research and found that the 2871 has a 53.8mm exhaust wheel diameter while the 2560 has a 53mm. can you swap the housings?

[hungryjoseph]

bump

[Sil80315]

why would you want to?

[hungryjoseph]

turbo lag...?

[Sil80315]

your not really going to notice the difference from a .8mm difference

[hungryjoseph]

I'm not talking about swapping the wheels, I'm talking about swapping the housings. the s14 t28 exhaust housing has a .64 A/R ratio while the 2871r I am looking at has a .86 ratio. I mentioned the wheels because the s14 t28's is .8mm smaller than the 2871r so I'm wondering if there will be issues with the wheel clearance of the housings, and if they will bolt on

[hungryjoseph]

bump

[hungryjoseph]

hmmm no one knows?

[hungryjoseph]

man no one knows?

[supreamS14]

I'm just gonna guess that It might not be a good Idea. I work on jetski's. The propeller blades (Like a big compressor wheel in a housing) needs that tight tolerance from the blades to housing or it will make cavitation in the water and not go anywhere. I would think the same would ensue with exhaust flow. I would think the turbine wheel should match the size of the exhaust housing. It might work but not at it's full efficiency. I'm no expert in turbos just giving my thought on the subject.

Anyone care to enlighten us?

[hungryjoseph]

thanks for the response and I understand what you're saying. if it does bolt on, the .64 a/r housing of the s14 t28 will most likely be smaller than the .64 a/r housing made for a 2871r. I think this because the wheel size is smaller on the t28 so the housing itself must be smaller to make that same .64 ratio. which means that the 2871r would actually spool up faster than the 53.8mm wheel housing, make less peak power but make slightly more response. but that difference is so small