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English Racing SD Evo 9 HKS7460 E85 - Results are in.

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Old Oct 25, 2010, 08:23 AM
  #106  
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Originally Posted by SPANKED
I'm a bit confused about the WG actuator arm... so before installing the turbo I should tighten the turn buckle so the arm is the shortest possible length?
No. The WGA arm is almost a z-shape, and the kinks seem to relax a bit during the first several heat cycles. Best to just set it to normal tension, and then retension after each drive until the tension holds.
Old Oct 25, 2010, 08:24 AM
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seems to me like a real healthy turbo kit so far so good
Old Oct 25, 2010, 11:00 AM
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Originally Posted by mrfred
No. The WGA arm is almost a z-shape, and the kinks seem to relax a bit during the first several heat cycles. Best to just set it to normal tension, and then retension after each drive until the tension holds.
Thanks, so just leave it the way it came from factory and recheck after cycling it?

Right now the turn buckle is centered betweek the two nuts. Should I leave it that way, install the turbo then check after tuning and driving it a bit?
Old Oct 25, 2010, 12:08 PM
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Originally Posted by SPANKED
Thanks, so just leave it the way it came from factory and recheck after cycling it?

Right now the turn buckle is centered betweek the two nuts. Should I leave it that way, install the turbo then check after tuning and driving it a bit?
No, you should tighten it first before installing it, then re-tighten after a few heat cycles. From factory it comes pretty loose.
Old Oct 25, 2010, 12:14 PM
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Originally Posted by TeKiZeRo
No, you should tighten it first before installing it, then re-tighten after a few heat cycles. From factory it comes pretty loose.
The nuts are tight, but turn buckle is centered. I just want to ensure the length is right before bolting the turbo on.
Old Oct 25, 2010, 12:22 PM
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SPANKED.
find what I wrote 2 pages back or so. it explains how to tighten the actuator arm.
Old Oct 25, 2010, 02:23 PM
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Originally Posted by R/TErnie
SPANKED.
find what I wrote 2 pages back or so. it explains how to tighten the actuator arm.
Thanks man but I saw your post... just confused on whether I should be adjusting the arm (making it shorter) or just making sure the nuts are tight. The turn buckle is pretty centered between the nuts from the factory. Should I be just checking that the nuts are tight or actually shorting the arm by threading the turn buckle into the lower part of the arm?
Old Oct 25, 2010, 04:01 PM
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the turn buckle will always be centered.

It threads into both ends at the same time because its LH thread on one end and RH thread on the other. So you'll be threading the turn buckle into BOTH ends of the arm.

Go adjust it in real life and it will be apparent very quickly what we're talking about.
Old Oct 27, 2010, 08:22 AM
  #114  
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You making it to DO on Saturday E?
Old Oct 29, 2010, 12:02 PM
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Nope. Its going to be two weeks before I dyno again me thinks.

Saturday November 13th. Gives me some time to get after a few things (TedB's twin pump mod) get my Black bov spring from TiAL. Port the turbo manifold... do another boost leak test... get the MIL.SPEC Throttle body all prepped to be put on. Work on some part throttle stuff and then swap the plugs.
Old Oct 29, 2010, 01:21 PM
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My dyno?
Old Oct 29, 2010, 05:04 PM
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Originally Posted by 94AWDcoupe
I have one more observation about why this turbo spools so fast. my housings are being coated. I noticed a pretty substantial difference easier to show in pictures. When I get the housings back I will show what I am referring to. I noticed the difference when I was porting the FP green housing and the HKS housing prior to coating.
Got the housings back. In short the A/R of this HKS housing is very small. If I had to estimate I would say its smaller than 9cm. It may be a bit hard to see in pictures so I edited them so you could see better. The red lines are HKS and The green are the FP 10.5cm housings. The width where the twin scrolls transfer into the turbine differs drastically between the two housings. The HKS is really restrictive.



Last edited by 94AWDcoupe; Oct 29, 2010 at 06:00 PM.
Old Oct 29, 2010, 05:56 PM
  #118  
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WOW, that isnt just a little that is a ton. Based on what I have seen from other TS housing fails, a mismatched A/r to compressor wheel can be 25% power. I am not saying this is a 600+whp but still there is a lot when you have severe backpressure in a turbine mismatched because of the flow of the compressor.

Aaron
Old Oct 29, 2010, 06:39 PM
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I'll be waiting for when somebody extrude-hones a HKS hotside (I suggested this to RT last week).

Matt
Old Oct 29, 2010, 09:24 PM
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Is there a published A/R on this new HKS turbo?


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