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Booglie
 Post subject: Good size turbo?
PostPosted: Wed Apr 12, 2006 10:54 pm 
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848cc
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Joined: Thu Dec 23, 2004 9:56 pm
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Location: Grafton, NSW
I was just wondering what is a good size turbo for a 1275 with a 40thou bore, i only plan on running about 7psi. I have an IHI RHB32 sitting around here off an old suzuki but i'm thinking it's to small for a 1275 .
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supercharged 850
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PostPosted: Thu Apr 13, 2006 1:46 am 
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1275cc
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Location: Adelaide SA Ausmini Sales Department
The Metro turbo 1275 engines were fitted with T3's...... some people change them to T2's to considerably improve the spool up time, acceleration, and engine life (less revs used).... but this limits the engine's overall top speed.

A T3 is probably the right size regardless - a T4 is too damn big :lol:

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Booglie
 Post subject:
PostPosted: Thu Apr 13, 2006 1:05 pm 
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cool, i'll have to check out the specs on them.
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awdmoke
 Post subject:
PostPosted: Thu Apr 13, 2006 1:24 pm 
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Flow would be a little small IMHO
Maybe try a TD04 off a Mitsubishi?

Kazjim used a RHB-4 to get 75hp at the wheels from a 998!
See here: http://forums.ausmini.com/viewtopic.php?t=17743&start=15

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JC
 Post subject:
PostPosted: Thu Apr 13, 2006 1:34 pm 
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Have a look at the CT9 off the GT Starlet. Good size and plenty of power. Plus, people basically thow them out so there are lpenty of them around when you blow it up.

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TheMiniMan
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PostPosted: Thu Apr 13, 2006 2:37 pm 
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I`d go for the newer ball bearing type GT28R, well, that`s the one i`m using anyways :-) maybe that might sound a little bias then :-)

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Blokeinamoke
 Post subject:
PostPosted: Thu Apr 13, 2006 2:39 pm 
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Might be a bit big

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JC
 Post subject:
PostPosted: Thu Apr 13, 2006 3:49 pm 
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Marginally......

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Mick
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PostPosted: Thu Apr 13, 2006 3:53 pm 
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Joined: Fri Apr 29, 2005 9:46 am
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Location: Under the bonnet son!
And where's the fully sik blow off valve then?

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Gilly
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PostPosted: Thu Apr 13, 2006 3:58 pm 
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Agree with the Gt28 or a used T28 orT25G from an Sr20 used one in a E15(ET turbo) and it spooled up just as quick as the standard T2 with heaps more midrange and top-end
Another choice would be an IHI RHB5 from an 1.8 laser or WRX Im not too clear on which origin.
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