rx-7 TT turbos??
#1
rx-7 TT turbos??
i recently got a twin turbo set-up off of a 90's rx-7 . i was wondering how they were(performance wise).
the reson i posted it in the fabrication section is becaue i want to adapt it to work on my 242 turbo volvo
thanks
the reson i posted it in the fabrication section is becaue i want to adapt it to work on my 242 turbo volvo
thanks
#5
Re: rx-7 TT turbos??
They are twin hitachi ht-12's......identical to eachother except for the compressor housings since one has a wastegate mount. I have a couple sets myself. While there have been a few gents to pull out 380+hp (some claim 400) it's certainly out of their efficiency range. I swapped to a single turbo on my fd. Stock boost is around 10-11psi on an fd.
At one point I was thinking of using a single unit on my prelude but opted for a t28 since the turbine housings are so small on the hitachi units. I was just going by sight because I think the hitachi's actually have a larger a/r on the turbine. The wheels are larger also on the hot side but not the cold. Anyhoo, I think you would be better off going with a better supported turbo so that you don't have to custom make flanges like I did before going with the t28.
At one point I was thinking of using a single unit on my prelude but opted for a t28 since the turbine housings are so small on the hitachi units. I was just going by sight because I think the hitachi's actually have a larger a/r on the turbine. The wheels are larger also on the hot side but not the cold. Anyhoo, I think you would be better off going with a better supported turbo so that you don't have to custom make flanges like I did before going with the t28.
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