depends,lets say timing is turned up to 28 degrees in 1st and 2nd gear,then dropped back to 19/20 in 3rd,still think its going to knock more in 3rd gear
Update: installed check valve and lowered turn on to ~2 psi. Only seeing 1d of knock on initial hit. Engine seems to bog a little but I’ll tune that out. The check valve is a nice option to Julio’s kit.
another update: since the system now has a check valve before taking a hit I quickly purge. This has eliminated all transition knock and I'm able to dial the turn on back to factory setting.
I have the check valve installed, and dual 20 nozzles. I am getting transitional, audible (not false) knock only during spool up, about 6-7 degrees then it goes away.
I have my gain at 4.8 ish. Turn on at 9:30 (about 5psi) and initial around 1:30. I'm thinking I should turn on even sooner to get things moving earlier. Any reactions to the above?
I have the check valve installed, and dual 20 nozzles. I am getting transitional, audible (not false) knock only during spool up, about 6-7 degrees then it goes away.
What kind of power are you making?
From the conversations I've had w/ Julio, a single nozzle should handle up to 900 FW.
Unless you are way above that, I wonder if the knock is over fueling.. AKA "rich knock".
Hi Denis, Al told me you were working on your GN again. Do you have a Powerlogger? You can see how fast the spool is and how the a/f is doing with a log.
What kind of power are you making?
From the conversations I've had w/ Julio, a single nozzle should handle up to 900 FW.
Unless you are way above that, I wonder if the knock is over fueling.. AKA "rich knock".
Hi Denis, Al told me you were working on your GN again. Do you have a Powerlogger? You can see how fast the spool is and how the a/f is doing with a log.
Chuck - I think I’m in the 450-500 range on power. I can see my AFRs and I don’t think I was going too rich.
Pronto I do have a powerlogger but I’ve been going mostly by Scanmaster readings, my wideband and EGTs.
since my last post I figured I needed to get things flowing sooner to stay ahead of the detonation. I adjusted my turn on to be even sooner - it’s around 1 psi now. I left initial the same at 1:30. I turned gain up to 6. Transitional audible detonation is gone, but I know I’m flowing too much now as EGTs are on the low side. I have some headroom with spark timing so I might bring that up a notch and see how the car responds. Regardless I think I can dial the initial back - I only want a dribble at 1 psi - enough that the pump and lines are primed.
What kind of power are you making?
From the conversations I've had w/ Julio, a single nozzle should handle up to 900 FW.
Unless you are way above that, I wonder if the knock is over fueling.. AKA "rich knock".