TwinTurbo.NET: Nissan 300ZX forum - I am going to save all of that for the next round (long)
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Subject I am going to save all of that for the next round (long)
     
Posted by Bryan (AKA B-Ster) on May 26, 2003 at 4:26 PM
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In Reply To is there anyway to get the data files in excel format? posted by nixit on May 26, 2003 at 03:10 PM
     
Message as this dyno pull is in no way representative of how the turbos will spool with a stronger wastegate spring installed. The problem right now is that the wastegates start to bleed as soon as you see positive manifold pressure. The car will hit then 1.0 bar and stay there for a thousand rpms or so until the finally hitting 1.25 and then staying there.

We have the .8 bar springs in, and will have to upgrade to the 1.3 bar or 1.6 bar variety.

The turbos start to spool at the same time as on the Supra: #'s are right on at 3.5 K rpms, 40 rwhp less at 4.5 K rpms, and 150 rwhp less at 5K. All that mid-range lost because of the boost being released by my wastegate springs.

In a nutshell, we should be hitting 500 rwhp by 5,200 rpms....not 6,000 rpms.

Once we have a machine shop here fix that rod and we get re-broken in, we will spend more time on the dyno and get everything lined out. Then, I will post everything in any file type you would like.

Bryan

     
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