mrr23

iTrader: (3)

you could always do another independant test to verify mine. you know me, i taint all my stuff.

there is so many ways this could go. solenoids, nozzles, bottle valves.

which by the way, the onlt time i used the nytrex bottle was for the first run. the rest of them i stayed with my compucar bottle. and i verified that not be be a contributing factor when i redid the nozzle test for test 4 comparing both nozzles with the larger solenoid. 6 rwhp gain on test 4 swapping nozzles. 8 rwhp was the first test.

which now brings up another thought, what really is the max point of solenoids? 80% like ken suggests? or lower? it's obviously not higher.

back when i did a 150 to 200 last year on my black car, i only received less than 10 rwhp gain.

Robert56

iTrader: (2)

This is some very insightful info here. I am going to make an equation for this and add it to my repitore. I am sure glad there are other tech geeks (a good thing) out there. Thanks mrr23
Robert

383LQ4SS

iTrader: (33)

I think your 136 in an unlocked converter is pretty close. Im sure it would be more like a 145-150 or so through a t56. Id say your doing ok setup wise. If you want more than 136 your just gooing to have to spray more at this point I would think.

mrr23

iTrader: (3)

well, i'm getting back to the differences in ratings. .076/.043 is what i have now for what compucar rates as a 200 motor shot. remember this whole test revolved around the whole why does nitrous companies rate the same jets differently.

.062/.033
NX (and some others)150 rwhp
Ny-trex (and some others) 150 motor

the compucar is a small solenoid as well. so, i know just going to a larger solenoid will net me another 18 rwhp. right now my restriction is the noids.

cbrtrx

iTrader: (2)

nice results, im thinking that you only flow about 80 percent of the noid orifice too, ive been having issues getting the hp i want thru my noids so im going to be doing some testing with different noids to see if thats the problem

mrr23

iTrader: (3)

which brings up another question. i'm pretty sure it's been answered. and search is very limited right now.

what is a 'safe' a/f ratio on the bottle? 11:1? 12:1?, 13:1? obiviously, i'm making more power at a higher a/f ratio. but, is 6-8 rwhp worth the .5-1 point leaner condition? current in the 12.5:1 range that is.

383LQ4SS

iTrader: (33)

Theres not really a specific answer. When running very large shots like 300-400 and fuel like c16 I always seem to make the most power very close to 11.5 to 1. On smaller shots like a 150 or less I am usually happy with 12.5-11.5 as long as no detonation is occuring. For any given combo and tune and fuel type there will be a best AF ratio not only for safety...but for power as well. And many times...leaner (as in 13.0-13.5) does not necessarily equate to more power. Especially when running race gas. I have seen instances where the difference between 13.5 and 11.5 was 50+ hp gain staying at 11.5 on a typical 750 rwhp setup with say a 250-300 shot.

On your setup I may be inclined to get closer to 12.0 from your current 12.5. But If I was at a very steady 12.5 and have determined there was no knock anywhere I could live with that as well. If you had knock I would address timing first at that point anyways. Your in the ballpark IMO.

mrr23

iTrader: (3)

well that gives a baseline to go by. ny-trex wants me to stay in the 11-11.5:1 range. just wanted more opinions. you going to stop by the track rental this saturday at bradenton? i'll be there testing my newly found power. trying to bust a ten. ten seconds or ten bolt.

383LQ4SS

iTrader: (33)

I might..what time is the event?

I think 11 is too much. If you wanted 11.5 that would be fine as well but it may cost you a bit...tough to say without checking. If it were my car I would go to 12.0 with a 150 shot. But at the track I would still be inclined to run a few gallons of 100 unleaded. Its cheap insurance and goes a LOONG way towards safety. Especially if your going to be hitting it in the lower rpms like you generally like to.

mrr23

iTrader: (3)

it's from 4-9pm. i'll be adding about 3 gallons of 104 to the tank.