|
Nitrous system fuel pressure varying
The larger fuel pump I installed has the capacity to reference the fuel pressure to boost (1 to 1), unlike the old pump. This presents a problem with my nitrous system. The nitrous system was jetted on the rich side for a fuel pressure of 45 psi. Now that the fuel pressure is rising with boost, the nitrous system will be richening with boost. I'll study the datalogs to see if I can get away with this. If not, I'll have to install a separate fuel pressure regulator for the nitrous system. Luckily, methanol has such a wide a/f ratio burn range, I may get away with having it richen before shut down at 16 psi. It would certainly be a safe way to run it. Preliminary runs show that it will run clean. I just need to figure out if it's slowing my 60 foot being so rich.
__________________
Donnie
|