First track outing for the year (1/4th mile)
#21
Senior Member
He’s NA with nitrous.....rpm becomes a much bigger issue when their is a supercharger belt pulling hard on the crank snout and constant boost. There are plenty of gen 1 NA coyote mustang guys spinning to 7500rpm+ with boss manifolds, without issue.....at least in the short term.
Boost really changes things however and 7500rpm at 400whp NA is a lot different then 7500rpm at 550whp boosted.
Boost really changes things however and 7500rpm at 400whp NA is a lot different then 7500rpm at 550whp boosted.
#22
Senior Member
Thread Starter
Originally Posted by BadCon
He’s NA with nitrous.....rpm becomes a much bigger issue when their is a supercharger belt pulling hard on the crank snout and constant boost. There are plenty of gen 1 NA coyote mustang guys spinning to 7500rpm+ with boss manifolds, without issue.....at least in the short term.
Boost really changes things however and 7500rpm at 400whp NA is a lot different then 7500rpm at 550whp boosted.
Boost really changes things however and 7500rpm at 400whp NA is a lot different then 7500rpm at 550whp boosted.
#23
Junior Member
Blue5.0, sorry your night was not the best. Hope you don't mind me jumping in on your thread - I also have a blue 5.0 and also went to my first track night of the year, at the aforementioned Texas Motorplex a couple of weeks ago. Man that place has changed a lot in the 20+ years I have been going there. Got 7 runs in a little over an hour, there were very few people there and at times there was no line whatsoever. Other differences since long ago - they had a small bleacher pushed up right next to the staging lanes, so you could sit ~15 ft away from where the cars launched if you wanted to. They also were serving beer and margaritas in yard glasses. Nice for the spectators!
My truck is a 2018 5.0L 4wd supercrew, 3.55 gears and of course the 10-speed auto. 5K miles on the truck, bone stock with just E-85 (Torque showing ~70% ethanol) and a standard Omega tune. Right at 5,200lbs with driver. First run was in 4wd, sport mode. 13.32@103.41 with 1.98 60-foot. I honestly could not believe it when I saw the timeslip... this truck is faster than my lightly-modified 1993 Mustang GT, which can only manage a mid-13. What a difference 30 years of technology makes!
Next I tried a couple of runs in 2wd, and could not get a decent launch so went back to 4wd. I tried a short powerbrake in 4wd at the light and when I took off, there was a loud bang and the engine hit the rev limiter. After a second or so, the traction came back and I made it down the track for a 15.9@101. I'm not sure exactly what happened but either I got kicked into 2wd and lost traction, or got kicked into neutral briefly. I decided not to powerbrake anymore in 4wd. If this has happened to anyone else, I'd like to hear about it.
Last run of the night, I removed the air filter element from the factory CAI. I have seen others mention that the main restriction in the factory CAI is the panel filter and I wanted to test that theory. After several runs in the 13.3-13.4 range at 103.x, the run without the panel filter came in at 13.27@104.23 (2.01 60-ft). So it looks like the panel filter does likely cost ~10hp. I see an aftermarket CAI in my future (and a GT intake). Oh, I also made a run in "Normal" mode (vs. sport). 13.62@102.59.
I have had a few vehicles tuned over the years, and have never seem much benefit on a N/A motor... until this one. The OZ tune really woke this truck up. If anyone is on the fence, I say do it - you won't be disappointed!
-David
My truck is a 2018 5.0L 4wd supercrew, 3.55 gears and of course the 10-speed auto. 5K miles on the truck, bone stock with just E-85 (Torque showing ~70% ethanol) and a standard Omega tune. Right at 5,200lbs with driver. First run was in 4wd, sport mode. 13.32@103.41 with 1.98 60-foot. I honestly could not believe it when I saw the timeslip... this truck is faster than my lightly-modified 1993 Mustang GT, which can only manage a mid-13. What a difference 30 years of technology makes!
Next I tried a couple of runs in 2wd, and could not get a decent launch so went back to 4wd. I tried a short powerbrake in 4wd at the light and when I took off, there was a loud bang and the engine hit the rev limiter. After a second or so, the traction came back and I made it down the track for a 15.9@101. I'm not sure exactly what happened but either I got kicked into 2wd and lost traction, or got kicked into neutral briefly. I decided not to powerbrake anymore in 4wd. If this has happened to anyone else, I'd like to hear about it.
Last run of the night, I removed the air filter element from the factory CAI. I have seen others mention that the main restriction in the factory CAI is the panel filter and I wanted to test that theory. After several runs in the 13.3-13.4 range at 103.x, the run without the panel filter came in at 13.27@104.23 (2.01 60-ft). So it looks like the panel filter does likely cost ~10hp. I see an aftermarket CAI in my future (and a GT intake). Oh, I also made a run in "Normal" mode (vs. sport). 13.62@102.59.
I have had a few vehicles tuned over the years, and have never seem much benefit on a N/A motor... until this one. The OZ tune really woke this truck up. If anyone is on the fence, I say do it - you won't be disappointed!
-David
#24
Senior Member
Thread Starter
To get an idea of how sloppy the run was, here is a screen shot of the data log. The blue line is showing actual throttle angle. At the top of first I hit the limiter and throttle closed, when nitrous kicked in after the shift I got loose then braked. I tried to get back into it a few times, but I was never able to fully recover from the *** end getting squirrely the first time. I'm literally on the brake for about 2/3rds of the run. Lol, all in all I'm happy with a 13.5 @93mph. I think this will be sub 12's when I get this straightened out.