tuning questions

psfracer wrote:I would like to stay with the Q16 as that is what I run on all motor, and it would be certainly easier for me to run the same gas whether it be all motor or a nitrous pass.

I was thinking of starting off at 20 degrees, and starting with just a 125 and do some 1/8th mile passes, monitor the plugs, and work my way up to the 200. I would guess I should be at 22 degrees with the 200, all in by 1.5 seconds, but want to sneak up on it because of the consequences if I am wrong.

Starting slow is correct but I would pull 2 more degrees out....18 total with the system on. My deal runs best on HP with 36 total timing. Like I said above, I typically pull 5-6 degrees more timing out, as compared to C16, because of the oxygenation. I learned the hard way. The system will also want more FP and/or more fuel jet than usually suggested as well. I have had several conversations with Patrick @ Prosystems regarding his thoughts on Q16 and basically figured out that fuel is our friend, both on the carb and Nitrous side. I plan on having IS do some plumbing work for me and I'm sure that I'll learn a bunch of stuff from Steve as well.

bruno wrote:

studly wrote:I ran c16 on my big block up to 300hp worth of nitrous, anything over that i switched to vpno2

did you change your tuneups with the vpn02 fuel ?

i did not see a noticable differance usually made a pass, then read plugs and go from there with fuel pressure and timing but never needed to change jets to fix a rich or lean conditions

psfracer wrote:

studly wrote:I ran c16 on my big block up to 300hp worth of nitrous, anything over that i switched to vpno2

bruno wrote:

studly wrote:I ran c16 on my big block up to 300hp worth of nitrous, anything over that i switched to vpno2

did you change your tuneups with the vpn02 fuel ?

What compression do both of you run?

12.7