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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 12-28-2008, 08:10 PM   #1
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I have been given a turbo from a Astra 1.7 the spec/engine is:

Astra - 68HP Low blow 1.7L D X17DTL 92-98

Would this turbo work on my mx5, what performance gains would there be? I only ask as i have the turbo for free.

Many thanks in advance guys!

Last edited by martdaman; 12-28-2008 at 08:13 PM. Reason: Adding more infomation
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Old 12-28-2008, 08:26 PM   #2
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any idea which model turbo it is? Garrett, IHI, Mitsubishi, KKK?
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Old 12-28-2008, 08:27 PM   #3
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Its a GT1544.

To small.
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Old 12-28-2008, 08:29 PM   #4
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Yes that's right, the turbo does seem on the small side, so there would be no performance gain?
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Old 12-28-2008, 08:44 PM   #5
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Quote:
Originally Posted by martdaman View Post
Yes that's right, the turbo does seem on the small side, so there would be no performance gain?
Oh sure there would be, somewhere around 900 - 3000rpm. After that its blowing hot air and most likely will explode if its running off four cylinder.
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Old 12-29-2008, 12:43 AM   #6
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in for 300,000rpm turbine speed.
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Old 12-29-2008, 12:51 AM   #7
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Jesus, 1544 FTW!!! Better luck with a hair dryer plugged into your intake piping probably.
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Old 12-29-2008, 01:02 AM   #8
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look at the wastegate actuator, its almost as big as the compressor housing, lol.
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Old 12-29-2008, 01:07 AM   #9
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****, I bet it wouldnt slide in the inlet. Thats great. Find another and run twins lol. 2 angry hair dryers are better than one. Maybe I will pick one up for my pressure washer or lawn mower.
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Old 12-29-2008, 01:15 AM   #10
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^ Someone already did that and made 280whp.
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Old 12-29-2008, 01:18 AM   #11
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Ran 2 1544's on a 5hp Briggs and Stratton? Or did a twin Miata setup in general? Ive seen a twin on youtube. I dont really see the point unloess your just bored and want to show off your fabrication skills to have something unique.
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Old 12-29-2008, 01:26 AM   #12
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^^^ Well, ask the engineers who did the TT Supra/ TT Rx-7. Or the new Turbodisel F-250, although thats a bit different. Or the variable vane turbos on the AWD Turbo 911.

The idea I would guess is a steady torque curve, but you'd have to figure out how to transition from the small turbo to the large one, or find a way to not over-stress the little guy, I guess.

But all in all = complete waste of time for a diy'er.
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Old 12-29-2008, 01:27 AM   #13
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twin turbos on a miata, if I remember correctly it was a gorgeous setup too. I don't see the point either, you loose the benefit of a small turbo because its only being spooled by 2 cylinders. But 280hp is 280hp.
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Old 12-29-2008, 01:33 AM   #14
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Damn, that guy did use some small turbos, 1548's. I still would just rather have one 2560 or 2860 to make that 280hp.
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Old 12-29-2008, 01:32 PM   #15
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Can i ask how did you find the turbo part number out from the information i gave you just for future reference.

Many Thanks for the advice guys
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Old 12-29-2008, 01:57 PM   #16
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That would be a great size for my 1275cc Austin Healey. I'm sure you aren't local to me. Do you want to give it a happy home in Florida?
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Old 12-29-2008, 02:09 PM   #17
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I've got an IHI rbh5 with a broken shaft laying around... Not much bigger, if you can rebuild it you can have it
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Old 12-29-2008, 02:31 PM   #18
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Quote:
Originally Posted by curly View Post
twin turbos on a miata, if I remember correctly it was a gorgeous setup too. I don't see the point either, you loose the benefit of a small turbo because its only being spooled by 2 cylinders. But 280hp is 280hp.
TurboTim

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Old 12-29-2008, 04:04 PM   #19
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i think thats what size turbo tim runs on his twin turbo set-up. made close to 300whp
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Old 12-29-2008, 04:15 PM   #20
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Quote:
Originally Posted by disturbedfan121 View Post
i think thats what size turbo tim runs on his twin turbo set-up. made close to 300whp
For some reason I think it was like 220 on the 15 series then he moved into the small 20 series for 280. <shrug>
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