lncboytre_d

Played with the tune a little at the track, improved my ET. Made 4 passes. Each pass was a little better. Pushing a 150 shot through a Nitrous Oultet LT1 Plate Kit. I kept putting timing back in, still may have a little more in her. Running pretty rich. Best time:

R/T....387
60...1.716
330...4.783
1/8...7.345
mph...95.96
1000...9.553
1/4...11.420
mph...120.27

lncboytre_d

Stock suspension, full leather interior, stock rear, 240lb driver....how much would i pick up by increasing the shot to 200?

karpetcm

iTrader: (2)

what do you run on motor? the 120mph seems low but then again i dont know how much power your making nor what you do on motor. Let us know.

lncboytre_d

No passes on motor. Probably 11.9-12.1

Neal@NitrousOutlet

congrats! gald you had a fun weekend!

lncboytre_d

No dyno...but I am guessing 510-520 on spray

w3s1c0a5t

iTrader: (3)

Get this jet size right first.

What did the plugs look like? When its rich you should not be adding timing but trying to clean up the fuel ring.

Lets run a 7.0-6.9x on this jet.

lncboytre_d

After cutting a couple plugs, they looked pretty close to each other, this is what I found:

The timing mark on the strap was just past the bend closest to the weld.
The top ring of the plug had about 3/4 turn..no heavy soot, evenly distributed
No signs of detonation on the electrode or below it.
The base of the inside of the plug was gray, heavy gray.

Sorry for the lack of pics, where do I go from here? My N/A tune is rich, I use Jet Dynamic Tuner, does anyone know the correct table?

w3s1c0a5t

iTrader: (3)

Rich and over timed.

Pull out 9* total, drop 2-3 jet sizes on the fuel, make a pass.

Once you the tuneup a little closer and safer, only once change at a time.

Also what does your shift extension look like on spray? Might be some ET in the shift points.

Are you doing anything to progress or pull timing for power management? How are you activating this? Just want to make sure all the ducks are in a row.

lncboytre_d

I lowered my shift points accordingly because with the spray it would throw me into the rev limiter on my 2<3. I went from 6300 (which actually completed around 6500) to 6200 which is completing around 6400. Also, I found my mph was set to high on the shift from my mail order tune. It was set at 120 on my 2<3, I lowered it to 108 and that helped me pick up some mph on the big end. I may try to up the shift point back to 6300 with the lower mph table. My shift extention on spray is right at 5100. I am not sure if that is a good thing or bad thing. I use a MSD Digital 6+ to pull timing with a WOT switch....spraying out the hole. When I pulled timing all the way to 8* my mph dropped to 116, 7.5* got me 118, and 6 put me at 120 mph.

w3s1c0a5t

iTrader: (3)

With the plug still having so much fuel on it, it will almost always pick up with added timing, but that timing is a crutch for a poor AFR. First we get the fuel trims in order, then we see where the timing ends up.

If you look at all the big hitters and guys going on fast on this board, they will all basically run less timing and leaner tune up's than "conventional" thinking.

ATVracer, Carter, Cam's, Tony Shep, etc.

Taking the time to dial it in this way will make sure you do not have any piston shaped ashtrays and a car that runs the number.