View Single Post
  #7  
Old 01-12-2017, 07:32 PM
bcredliner's Avatar
bcredliner bcredliner is offline
Member
 
Join Date: Jun 2008
Location: Little Elm,Texas. (40 minutes North of Dallas)
Posts: 8,108
bcredliner is on a distinguished road
Quote:
Originally Posted by Plattus1000 View Post
Addendum ;
My engine is mostly stock. I can't/won't change my exhaust for the test. At most because I'm running open exhaust after the cats, I might leave them on for the dyno bit to save time and money, I might just delete the cats upon install since they're coded out anyway.

I will provide you with with the best answers to the 4.4-4.6 questions. Every car will be different for sure but I get the sense that you're pretty skeptical.

I'll enjoy getting your reaction BC.
Not skeptical at all. Just due diligence. I always do a value equation. How much improvement in HP/TQ can I expect per dollars spent.

If I have your dino numbers in your current setup and then the dino numbers after only adding headers, no tune, I can get some idea of what I might get accepting your numbers as the minimum.

Dino numbers with tune added before headers and then add headers would be OK but that would not likely optimize your application. With only numbers with a tune to go with headers I can't separate the contribution of the tune verses the headers alone.

Thus far, I an running the Dinan tune with meth so that when I am not on nitrous I still have decent performance. That means I haven't retarded the timing, it is more advanced than stock. I can't do a tune that needs more timing advance because of the risk of detonation on nitrous. That was the primary reason to add meth, synthetically increase the octane to be in safer zone. That's the long story reason for my request.
__________________
X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas
Reply With Quote

Sponsored Links