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Refresh951's Hybrid Stroker - A Blown944 Design

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Old 10-25-2012, 10:49 PM
  #256  
blown 944
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Good work. You do need to start your pulls earlier in the rpms though. You're changing your curve dramatically starting so late. I meant to say something before but...

Anyway, seems to be getting better every time. Just like my year. Pretty amazing combo if I do say so myself.
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Old 10-25-2012, 11:08 PM
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Originally Posted by blown 944
Good work. You do need to start your pulls earlier in the rpms though. You're changing your curve dramatically starting so late. I meant to say something before but...

Anyway, seems to be getting better every time. Just like my year. Pretty amazing combo if I do say so myself.
Thanks Sid. I think the difference in the curve shape is due to settings in the EBC. Still messing with the gain. I don't think I was clear that the graph shows a pull from a few weeks ago with MBC and a pull from tonight with the EBC.
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Old 10-25-2012, 11:17 PM
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I'm looking at the two most recent pulls. Looks like the latest starts later in the rpms. I noticed that if you start earlier, around 2200, that the torque escalates much sooner.


I noticed this on yours and mine as well.
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Old 10-26-2012, 01:43 AM
  #259  
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Nice numbers Shawn- not as crazy as Sid's but still a hoot to drive on the street I'd imagine. You'll like it even better at 21lbs.
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Old 10-26-2012, 02:09 AM
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Interesting on the overlay. The peak power increased almost perfectly in proportion with displacement increase, but the curve is undeniably improved across the range. Nice!
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Old 10-26-2012, 12:57 PM
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Originally Posted by refresh951
Went back to the dyno tonight to get my EBC setup right. Squeezed a bit more power out and cleaned up the curve on top. The graph below shows an 18 psi run from a few weeks ago with MBC and a run from tonight with the EBC. A bit more work to do getting the gain set right for bottom end power. No real point in me pushing much past 18psi as the turbo runs out of steam for sure.




Also, Jim asked for an overly of the 2.85L Stroker dyno with my old 2.5L so I had Arthur at DynoLab plot it for me. Here it is. Both runs were 18 psi and both runs used MBC:


THanks Shawn! THis is now another one of your threads I will have bookmarked

Pretty interesting to see how similar the curves are between the two. Just "more" really.
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Old 10-26-2012, 02:00 PM
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So you've hit your 400RWHP/TQ goal, but still some massaging to due...how is your tune?
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Old 10-26-2012, 04:08 PM
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Are those dynos on E85 or on pump gas?
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Old 10-26-2012, 06:20 PM
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Originally Posted by OmniGLH
THanks Shawn! THis is now another one of your threads I will have bookmarked

Pretty interesting to see how similar the curves are between the two. Just "more" really.
Really not a lot of difference except displacement. I also added the bigger valve head but I do not think I am taking advantage of it with my current turbo. Sid's motor has shown that the stock head flows pretty well.

Originally Posted by V2Rocket_aka944
So you've hit your 400RWHP/TQ goal, but still some massaging to due...how is your tune?
Not much to tune. Everything is spot on thanks to Rogue. This is the end of the line with the current turbo. I am researching turbos and will be making some changes.

Originally Posted by DanaT
Are those dynos on E85 or on pump gas?
E85
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Old 10-26-2012, 06:27 PM
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Originally Posted by refresh951
Not much to tune. Everything is spot on thanks to Rogue. This is the end of the line with the current turbo. I am researching turbos and will be making some changes.



E85
FRF VNT
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Old 10-26-2012, 06:50 PM
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Shawn, mine is only stock valve size. There is a bit of work done.

Looking forward to your turbo choice!!
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Old 10-26-2012, 06:56 PM
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Originally Posted by refresh951
Not much to tune. Everything is spot on thanks to Rogue. This is the end of the line with the current turbo. I am researching turbos and will be making some changes.
You've got a PM coming...
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Old 10-26-2012, 07:10 PM
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Originally Posted by blown 944
Shawn, mine is only stock valve size. There is a bit of work done.!
Sid, with you I use "stock" in the loosest sense of the word as nothing on your car is "stock"
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Old 10-27-2012, 01:27 PM
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Not much to tune. Everything is spot on thanks to Rogue. This is the end of the line with the current turbo. I am researching turbos and will be making some changes.

Sorry if this has been asked before....Aren't you currently running a 60-1?
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Old 10-27-2012, 02:42 PM
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Originally Posted by White_951
Not much to tune. Everything is spot on thanks to Rogue. This is the end of the line with the current turbo. I am researching turbos and will be making some changes.

Sorry if this has been asked before....Aren't you currently running a 60-1?
Shawn has a dbb 50trim with a #8 if I remember correctly.
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