Quote:
Originally Posted by townsend
this is the chart i use and its pretty accurate based on my logs, so with higher than 55psi fuel pressure i would be using a .027 fuel/.062nitrous for a 150, and so on. the robbietherobot calculator did not work for me
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Thanks for your reply. I do appreciate the tech help and knowledge.
I like the numbers on that chart, it probably would have been dead on for me on the dyno. One day soon I will have to dig into the math and datalogs between the dyno session and the track datalogs from last weekend. One went crazy rich, and the other went super lean; with the same jetting.
This is the chart I used most of last year, and for a while I had good success. Using the 150 jetting (but it used to be a .058 and a .030) running pretty clean 10.80 and 10.90 passes. Even when I couldn't get the "175" (.063 and .032 or .033), I would go back ad put the 150 jets back in and go back to running 10.80s. Somewhere after that period in time, something went arwy and became inconsistent.