I have a 03 busa stock motor, looking into getting my ecu flashed from schnitz racing. It has a full Yoshi TRS exhaust, air box mod, short stacks, I know the most ideal way to go about it is to get it dyno tuned. From what I've read it sounds like the gen1's stock can handle a little bit more spray than the gen2's. I currently have a gen2 with a performance first spray bar with a 40-45 shot made 215 and 220 on a dynojet. If I remember right, the nitrous map doesn't have any timing removed and has 17% fuel added. If I remember correctly it ran an a/f of 12.2-12.5-1. I went 126 in the 1/8 and trapped 161mph with swb. I've sprayed it on a rolling half mile about 2700 feet total and it didn't have any problems.
Few questions for you guys on my gen1, I was planning on going with a dry kit with a performance first spray bar, 91* pump gas mixed with 110 Sunoco/ aiming for 95 octane.
Is a 50 shot unrealistic or should I stick with a 40?
Do I need to worry about the stock fuel pump on a 50shot?
For safety wise is it a good idea to pull 2 degrees of timing?
I thought 12.5 is a good, safe a/f? Does that sound right?
What is a good fuel percentage to add to the map for a 40/50/60 shot?
15-18%?
Please post, any information/suggestions would be greatly appreciated, try not to beat me up too bad. Thanks