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Author Topic: 01 audi s4 holset turbo  (Read 11118 times)
Surferkirsch
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« on: August 09, 2012, 11:26:08 PM »

So i bought this car with a worn out clutch about 6 months ago, 158xxx, decided to go ahead and upgrade to ko4s when i changed the clutch, along with a full gasket set. A week ago, the porcelin from a spark plug fell out of the plug and locked my right side turbo, destroying the wheels, and sending rediculous oil to my intake. I am good with engines and cars, but really? 2nd set of turbos, and ihave to go through hell to even check them? I decided as soon as the turbo went, i love this damn car too much to ever get rid of it, so i started my complete modification stage to make my life easier and my car even more fun. Im worried a bit about the tune,especially since i cant seem to get thefile to checksum anything, or figure out how to datalog, but once i start her up tommorrow im planning on spending allweekend datalogging. Smiley enjoy, i know im rediculously stoked about this.
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marcellus
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« Reply #1 on: August 14, 2012, 11:24:14 PM »

What turbo are you using?
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ddillenger
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« Reply #2 on: October 20, 2012, 01:02:26 AM »

All of these single turbo threads have me eyeballing the PDR super hx-40 I have sitting in my backroom..........
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cactusgreens4
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« Reply #3 on: October 22, 2012, 12:10:57 PM »

All of these single turbo threads have me eyeballing the PDR super hx-40 I have sitting in my backroom..........

DO IT!
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ddillenger
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« Reply #4 on: October 22, 2012, 01:09:03 PM »

I'm thinking that since it's not vgt it may be a bit laggy-any thoughts? Its got a ported 16cm exhaust housing on it...
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cactusgreens4
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« Reply #5 on: October 22, 2012, 05:36:08 PM »

I'm thinking that since it's not vgt it may be a bit laggy-any thoughts? Its got a ported 16cm exhaust housing on it...

dont quote me on this but I think the variable geometry turbos are hard to control with our ecu's... or maybe thats just the 20v turbo I am thinking of.
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Surferkirsch
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« Reply #6 on: October 23, 2012, 11:35:16 AM »

not sure what it was, i took it all back apart again.. it was around an hx-40. it was too laggy for my liking. im currently building up the bottom end, and then im going to go with a smaller turbo, and make some header manifolds for it to give more air.
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haggard69er
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« Reply #7 on: November 14, 2012, 02:13:43 PM »

the 16cm2 housing on a stock block is way to big imo. I am also exploring holset turbos and have decided on a hx35 (seven blade comp), it will flow around 60lbs which will be what i need to obtain  my hp goal. you could also look for a smaller exhaust housing for your hx40 to help spool, but a smaller holset housing will most likely need to be machined out to fit. good luck!
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prj
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« Reply #8 on: November 15, 2012, 04:01:08 AM »

the 16cm2 housing on a stock block is way to big imo.

What?

I use these housings on the Audi 2.2T engine without any issue. The 16cm^2 is the smallest I use on those.
Considering this has 2.7 liters displacement, then no, I would say 16 is even a little on the small side for a HX40.
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