Hybrid S5 Turbo
07-04-2005, 09:02 PM
#1
Junior Member
Thread Starter
Join Date: Aug 2004
Location: Auckland City, New Zealand.
Posts: 17
I've been asking some of the local turbo workshops if they'd rebiuld my S5 turbo with a garrett TO4 S front cover and new compressor wheel, and from the few I've spoken with, they are not that keen on doing it, they all seem to want to sell me their new turbo's!
Is this option worth while, what are the reasons for not Hybriding S4/5 turbos? Or, should I take the other approach and ask, 'what are the advantages of a S5 Hybrid turbo'?
If anyone has used these Hybrids, could you give me some feed back on the size of compressor wheel I should be using or A/R ratio?
Is this option worth while, what are the reasons for not Hybriding S4/5 turbos? Or, should I take the other approach and ask, 'what are the advantages of a S5 Hybrid turbo'?
If anyone has used these Hybrids, could you give me some feed back on the size of compressor wheel I should be using or A/R ratio?
07-05-2005, 03:02 AM
#2
Senior Member
Join Date: Oct 2003
Location: I don't really exist ...
Posts: 500
from what i've read elsewhere, it's a decent setup for a relatively stock setup that can fetch about 14 PSI and roughly 300HP (flywheel). advantages would be overall costs and virtually no custom work to your engine bay.
i'm sure people with experience can make suggestions. i'm not knowledgable enough to do so.
i'm sure people with experience can make suggestions. i'm not knowledgable enough to do so.
07-05-2005, 08:17 PM
#3
Member
Join Date: Feb 2003
Location: Bedford,Tx
Posts: 38
About 4-5 years ago I had mine rebuilt by Turbonetics, with a "super V" hybrid. You will also need more fuel and a way to control it. I had my stock engine computer reprogramed and used a SAFC to control the 6 550cc injectors. Also the engine had a street port. I made 325hp at the wheels.
07-05-2005, 09:22 PM
#4
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Join Date: May 2002
Location: California
Posts: 22,465
if you're just changing the compressor wheel its a good option, of you're putting a larger exhaust wheel in there too, the cost gets to the point of being not worth it. buying the wheels, plus balancing and assembly and you can buy a new t4 and maybe a wastegate or a manifold
07-07-2005, 03:11 AM
#5
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Join Date: Nov 2002
Location: Honolulu, Hawaii USA
Posts: 925
07-07-2005, 10:13 AM
#8
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Join Date: Nov 2002
Posts: 3,108
[quote name='j9fd3s' date='Jul 7 2005, 08:35 AM']stock, they bore out the inside for a larger wheel.
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How much do the bore out? Do they maintain the same curvature to have the same flow characteristics? What about surface finish? What RA?
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How much do the bore out? Do they maintain the same curvature to have the same flow characteristics? What about surface finish? What RA?
07-07-2005, 09:41 PM
#9
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Join Date: May 2002
Location: California
Posts: 22,465
[quote name='Cheers!' date='Jul 7 2005, 07:13 AM']How much do the bore out? Do they maintain the same curvature to have the same flow characteristics? What about surface finish? What RA?
[/quote]
it kinda looks like stock just the hole it larger, to fit the bigger wheel
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it kinda looks like stock just the hole it larger, to fit the bigger wheel