How much N20 w this setup? and lean hit?
Thread Starter
Launching!
Joined: Dec 2002
Posts: 291
Likes: 0
From: Vegas
How much N20 w this setup? and lean hit? We are running Nitrous Outlets Plate Kit:
Jets 57 and 31
Timming 21 degrees
AFR 11.1 Drivers side colector spraying for ~20 seconds at a time long track
Plugs 103's at .035
Octane ~95 50/50 91/100
Stock LS2(11:1) with:
CAI and 1 7/8 Kooks
Want to go to a progressive 175-200rwhp shot (62-70 jet) but have 3 foot lines from the noids to the plate with the progressive controller will it be leaner on the hit? anyone use a fuel check ball or n20 delay?
From everything I have read LS2's with the Plate get higher than expected RWHP for the given jets should I limit the Jet or the RWHP?
Do I need colder plugs in any cylinders?
Should I run straight 100?
Any recomendations Ideas welcome
Jets 57 and 31
Timming 21 degrees
AFR 11.1 Drivers side colector spraying for ~20 seconds at a time long track
Plugs 103's at .035
Octane ~95 50/50 91/100
Stock LS2(11:1) with:
CAI and 1 7/8 Kooks
Want to go to a progressive 175-200rwhp shot (62-70 jet) but have 3 foot lines from the noids to the plate with the progressive controller will it be leaner on the hit? anyone use a fuel check ball or n20 delay?
From everything I have read LS2's with the Plate get higher than expected RWHP for the given jets should I limit the Jet or the RWHP?
Do I need colder plugs in any cylinders?
Should I run straight 100?
Any recomendations Ideas welcome
20 seconds? What exactly are you doing..lol?
6 speed or auto?
It sounds like you have all of you bases covered. For the full 20 second run i would probably go ahead and run straight 100 octane as you say.
The rest appears like you have made good choices. As for power level...i would stick it on the dyno just to get a reference of what you are spraying. But the variance of power that one may see on a particular size jet shouldnt be much. Maybe 10-20% and most of that is due to line diameter, fittings used, nozzles,etc.
So i would expect you are getting the expected HP of that size jet. Which is what....125 shot or so?
Now you Af ratio is a tad rich and may put out SLIGHLT less hp...but again...for a 20 second run i would go with the car being richer just as you have it.
One other question...what speeds are you getting up to in these 20 second runs...and what gear are you in when you finish?
6 speed or auto?
It sounds like you have all of you bases covered. For the full 20 second run i would probably go ahead and run straight 100 octane as you say.
The rest appears like you have made good choices. As for power level...i would stick it on the dyno just to get a reference of what you are spraying. But the variance of power that one may see on a particular size jet shouldnt be much. Maybe 10-20% and most of that is due to line diameter, fittings used, nozzles,etc.
So i would expect you are getting the expected HP of that size jet. Which is what....125 shot or so?
Now you Af ratio is a tad rich and may put out SLIGHLT less hp...but again...for a 20 second run i would go with the car being richer just as you have it.
One other question...what speeds are you getting up to in these 20 second runs...and what gear are you in when you finish?
Thread Starter
Launching!
Joined: Dec 2002
Posts: 291
Likes: 0
From: Vegas
A6 (6spd Auto) From roll on a long straight closed track of course.
50-175 4th in my car I grabbed 5th once 185 didnt want the 650hp 911 to pass lol
I have read a few posts with the same car / setup putting way more hp to the tire than the jet should, but I have never dynoed mine.
My car runs
12.8 at 112 on the motor
11.8 at 121 on the 75 shot
11.1 at 125 on the 125 shot (I am at the very top of 3rd b4 the finish)
50-175 4th in my car I grabbed 5th once 185 didnt want the 650hp 911 to pass lol
I have read a few posts with the same car / setup putting way more hp to the tire than the jet should, but I have never dynoed mine.
My car runs
12.8 at 112 on the motor
11.8 at 121 on the 75 shot
11.1 at 125 on the 125 shot (I am at the very top of 3rd b4 the finish)
well..if the MPH in your sig are correct....you are making some very good gains VS your shot sizes.
Just be real careful with the spray and high speeds/high gears. Beef up on the octane...in high gears octane is your best freind.
All those Supras and turbo guys running out 5th with alot of power are ALWAYS using C16 or better. So 100 octane is probably in your best interest if you plan to do these high speed runs.
It seems everything you have setup, with it being rich, plug gaps, etc etc are just fine. I would just raise the octane content as close to 100 for your purposes.
Sounds like fun...and an A6??? you must have an LS3 vette? Lucky you!
Just be real careful with the spray and high speeds/high gears. Beef up on the octane...in high gears octane is your best freind.
All those Supras and turbo guys running out 5th with alot of power are ALWAYS using C16 or better. So 100 octane is probably in your best interest if you plan to do these high speed runs.
It seems everything you have setup, with it being rich, plug gaps, etc etc are just fine. I would just raise the octane content as close to 100 for your purposes.
Sounds like fun...and an A6??? you must have an LS3 vette? Lucky you!
Thread Starter
Launching!
Joined: Dec 2002
Posts: 291
Likes: 0
From: Vegas
Thanks and thats at 3000 DA or 2100 feet
So with a stock LS2 6.0 11:1 compression with:
CAI, headers
Nitrous Outlet Plate
progressive shot
good fuel pressure
11.0AFR w/ 100 octane
21 degrees of timing
Autolite 103's
What do you guys think the limit is 175rwhp? 200 rwhp?
Anything I should change?
So with a stock LS2 6.0 11:1 compression with:
CAI, headers
Nitrous Outlet Plate
progressive shot
good fuel pressure
11.0AFR w/ 100 octane
21 degrees of timing
Autolite 103's
What do you guys think the limit is 175rwhp? 200 rwhp?
Anything I should change?
Last edited by SY732; Apr 11, 2008 at 03:40 PM.
