92 Polaris Indy RXL EFI turbo
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92 Polaris Indy RXL EFI turbo

This is a discussion on 92 Polaris Indy RXL EFI turbo within the Polaris forums, part of the Brand Specific Snowmobile Discussion category; I figured I'd show off the results of a month's work. It's a 92 RXL with a 136" conversion and a turbo. Currently running at ...

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Thread: 92 Polaris Indy RXL EFI turbo

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    baldur's Avatar
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    I figured I'd show off the results of a month's work.
    It's a 92 RXL with a 136" conversion and a turbo. Currently running at 7psi on the stock injectors maxed out but since the other injectors arrived in the mail today I'll be able to turn the boost up soon. Still needs work on the clutching but runs strong otherwise.
    T3 45 trim turbo out of a Saab 9000
    RBracing electric oil pump for turbo
    Mitsubishi Lancer Evolution 560cc/min fuel injectors
    modified RXL ECU with a boost pressure sensor integrated and custom firmware.
    Innovate Motorsports datalogger
    Polypropylene sewage plumbing airbox
    some junkyard intercooler








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    CanadianXCR's Avatar
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    Right on, pretty cool stuff man. Those injectors are pretty big, they must have been a good chunk of the project money. Any videos yet? Would be ultra cool to hear it and see it go.

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    baldur's Avatar
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    Quote Originally Posted by CanadianXCR
    Right on, pretty cool stuff man. Those injectors are pretty big, they must have been a good chunk of the project money. Any videos yet? Would be ultra cool to hear it and see it go.
    The stock injectors flow about 380cc/min and allow for roughly 50% more power than stock. 560cc/min is enough fuel to support about 230hp.
    Injectors are used but cleaned/tested. A set of 4 cost $200 USD including shipping to Iceland.
    No video camera, should borrow one the next time I go testing.

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    Ugly_old_Poo_kid's Avatar
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    Oh, man, you're tempting me..

    Nice job by the way!!!! [thumb]

    What are the green wires on the water jacket? Temp sensors for exhaust?

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    Quote Originally Posted by Ugly_old_Poo_kid
    Oh, man, you're tempting me..

    Nice job by the way!!!! [thumb]

    What are the green wires on the water jacket? Temp sensors for exhaust?
    Hee hee, [thumb]

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    Quote Originally Posted by Ugly_old_Poo_kid
    Oh, man, you're tempting me..

    Nice job by the way!!!! [thumb]

    What are the green wires on the water jacket? Temp sensors for exhaust?
    Yeah they're for the thermocouples in the exhaust manifold. Connected to an Innovate TC-4 module that records temperatures from 4 K-type thermocouples and transmits to the datalogger.

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    think its possible for me to do a similar set up with carb not efi??

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    Quote Originally Posted by cara
    think its possible for me to do a similar set up with carb not efi??
    Sure, there are lots of carbed turbo sleds going strong.

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    ha! the only thing is, is finding out how in the hell to do it!!

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    holy crap!

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