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Thread: Anyone gone turbo?

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    Good read. I think the only concern going turbo is tuning, especially on the 15+ models with the MAF. Going turbo would be fun. I've looked into it and I don't think there would be 'major' issues. I think the only 'hard' part is finding or making a exhaust manifold for the turbo charger. Me, personally, I think a Evo 3 16g or even a small 16g would be really fun. As for the tuning part, a sweet-'old' S-AFC would probably be the "easiest and cheapest" way for tuning. It'd be fun to have some boost


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        click to view fuel log View my fuel log 2015 Mirage DE 1.2 manual: 43.4 mpg (US) ... 18.5 km/L ... 5.4 L/100 km ... 52.1 mpg (Imp)


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    Yes it can be done with the oem ecu
    Name:  mirage cris turbo.jpg
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  3. The Following 3 Users Say Thank You to Hiram6G74 For This Useful Post:

    ahausheer (01-05-2017),Daox (01-05-2017),Eggman (01-05-2017)

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    Stock internals? pressure? hp/torque?

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    Quote Originally Posted by 2of9 View Post
    Good read. I think the only concern going turbo is tuning, especially on the 15+ models with the MAF. Going turbo would be fun. I've looked into it and I don't think there would be 'major' issues. I think the only 'hard' part is finding or making a exhaust manifold for the turbo charger. Me, personally, I think a Evo 3 16g or even a small 16g would be really fun. As for the tuning part, a sweet-'old' S-AFC would probably be the "easiest and cheapest" way for tuning. It'd be fun to have some boost
    We have had a couple of reports of head gasket failure on the forum. I would be worried that boost would contribute to this. But it would be interesting to see how the 3A92 holds up under boost.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)


  6. #25
    Senior Member GrnBn's Avatar
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    Quote Originally Posted by ahausheer View Post
    http://turbochargerspecs.blogspot.co...30-hp.html?m=1

    Some info in the gt12 turbo. Looks promising but I know nothing about turbos.
    On their website you can compare different turbocharger profile maps side by side. This one looked good, and there was another IIRC, that offered good looking efficiency islands.

  7. #26
    Senior Member GrnBn's Avatar
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    https://turbobygarrett.com/turbobyga...hargers/gt2052

    This one, IMO, seems like the one. We'd be all up in that 77% island.

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    MightyMirageMpg (01-15-2017)

  9. #27
    Senior Member MightyMirageMpg's Avatar
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    Quote Originally Posted by GrnBn View Post
    https://turbobygarrett.com/turbobyga...hargers/gt2052

    This one, IMO, seems like the one. We'd be all up in that 77% island.
    I agree that looks a little too big but plenty usable!

    Here is a chart for cfm@pressure converted to lbs of air for the mirage engine. I used 88% volumetric efficiency for the calculator input.
    Attached Images Attached Images  

  10. #28
    Senior Member MightyMirageMpg's Avatar
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    Just for fun i plotted out the turbo map at 10psi, 3500rpm full boost.

    Good hunting GRNBN looks like like a pretty decent fit. For surely application usable! (Lower a/r numerically or a smaller wheel this would be ideal size)
    Attached Images Attached Images  
    Last edited by MightyMirageMpg; 01-18-2017 at 01:19 PM. Reason: I got confused on area radius

  11. #29
    Senior Member GrnBn's Avatar
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    Imagine how nice that 3k-5k torque plateau would feel. I like that, with this particular model, neither the motor nor the turbo should be overly straining themselves within the ideal boost window.

    EDIT: update as of 1/17, it looks as if the model of turbocharger we're discussing can be sourced from 2003+ Saab 9-3's. If you search fleabay for gt2052 turbocharger linear you should get results ranging from ~300-600 for used to OEM rebuilt turbo assemblies. Someone with a little pocket money and a nice bit of luck at the local Pick'n'Pull could make the first major step towards a turbo Mirage in the continental US.
    Last edited by GrnBn; 01-17-2017 at 08:03 PM. Reason: Bwoah

  12. #30
    Senior Member MightyMirageMpg's Avatar
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    Quote Originally Posted by MightyMirageMpg View Post
    Just for fun i plotted out the turbo map at 10psi, 3500rpm full boost.

    Good hunting GRNBN looks like like a pretty decent fit. For surely application usable! (higher a/r numerically or a smaller wheel this would be ideal size)
    I said this backwards can't believe no one caught this... numerically LOWER a/r for the turbine.

    Quote Originally Posted by GrnBn View Post
    Someone with a little pocket money and a nice bit of luck at the local Pick'n'Pull could make the first major step towards a turbo Mirage in the continental US.
    I think the whole project could be done exceedingly cheep (under $1500) if you used megasquirt. But you would lose a lot of the cars features, as the canbus portion of MS is notoriously garbage lol

    Hopefully Hiram pulls thru with a boost sensitive and reasonably tuned plug n play. If he does you could turbo a mirage in a matter of days, and I will be doing just that.. something like 14 second 1/4 mile and 50mpg sounds like a reasonable goal.


    Last edited by MightyMirageMpg; 01-18-2017 at 01:23 PM.

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