turbo performance |
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turbo performance |
nsyr |
Jun 3 2004, 04:47 PM
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#1
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Because I Can Group: Members Posts: 314 Joined: 16-May 04 From: Tampa, FL Member No.: 2,073 |
I know there a few people out there with turbo 4's. Does anybody have any performance or reliability figures.
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fiid |
Jun 4 2004, 12:54 AM
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#2
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
QUOTE(airsix @ Jun 3 2004, 10:42 PM) QUOTE(fiid @ Jun 3 2004, 10:12 PM) Jake - do you think the exiswting head attachment mechanism will stand that kind of torture? Fiid. Something to remember about turbos - if done right they can nearly double the AVERAGE cyl. pressure without significantly increasing the MAXIMUM cyl pressure. (That, by the way, is awesome) -Ben M. Well - if that's true - then it shouldn't be too much of a problem.... I spoke to a guy who seems to know what he's on about (he works with one of the regular competitors at the PCA AX) who was of the opinion that "you couldn't keep the heads on it". I never got as afar as why this isn't a problem for type I motors (I actually have never seen a type I motor) - but it seemed plausable. He seemed to think you could run sub 10psi without breaking too much, but when I ran the numbers through some of the turbo calculator programs, it looked like it would be hard to get enough power out of my 1.7 to keep up with 2.0s. I reckoned you could get 130 or so HP out of a 2 litre but it seems like it would be awefully easy to just turn it into a smouldering heap, and since a set of 2l heads can cost $500-$1000 by themselves - seems like a risky proposition. A decent type IV rebuild just costs a lot of money - probably in the $5 to $8k range - versus the Subaru engine - as a JDM import crate motor costs between $600 and $1400, plus I can grab a new one any time I like. If I could afford a built T-IV - I'd probably just bite the bullet and go for a 3.0, 3.2 or 3.6 -6 engine. I might still turbo my 1.7 anyway - just for shitz and giggles. Would be fun to try and get classed for the local PCA. |
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