Finally got my truck tuned (dyno sheets inside)
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From: Louisiana
Finally got my truck tuned (dyno sheets inside)
I went to the local dyno shop to have them finish tuning my truck. I had first left it with them about a week ago and they loaded a 93 octane performance tune but it was getting late in the day so they didn't get a chance to finish.
Well, I brought it back to them yesterday so they could see how things were running now that the tune has had a chance to run on the truck and also so they could load a 93 octane towing tune into my Xcal2. I told them not to bother with any 87 octane tunes because I had no intention of running less than 93 if I was going through the trouble of having my truck tuned.
So anyway, they did a dyno run with the performance tune they loaded a week earlier and found that nothing needed to be changed. I then asked them to do a simulated 1/4 mile run and also load the stock tune back in for a comparison.
I have linked the sheets below but here are the highlights:
2006 XLT Supercab
5.4 3.55ls
~65* ambient temp
Tuned:
HP: 237.0
Tq: 295.9
Stock:
HP: 177.0
Tq: 247.9
Before anyone tells me, I know that is a seriously low stock figure. I can only guess it is low because it had just been loaded and didn't have a chance to run a bit and also because my truck may have just been a dog from the factory. (lean @WOT? I didn't think to ask about a/f with the stock tune)
The important thing to note is that these runs were made within 20 minutes of each other under the same conditions. The truck was not removed from the dyno between runs. Also, the stock dyno run has a really bad spot where the power falls off for a bit between 3700-4700rpm. This must be the pcm's torque management at work because there was no shifting and the throttle was to the floor during the entire run. (if your stock truck feels like it has a flat spot during acceleration then this is what it looks like on paper) Also note the way power falls off after ~4750 on the stock tune.
As for how the truck feels, well it feels exactly the way those dyno sheets would indicate. It is a completely different truck. Before the tuning I couldn't get wheelspin on asphalt to save my life. After the tuning I can leave about 3-8 feet of rubber from a stop every time. Mid and upper rpms are hugely improved also and the truck just plain feels like it has 300 horsepower under the hood. Of course they also tweaked the transmission shift points and firmness.
The links:
Simulated 1/4 mile run
Tuned dyno run
Stock dyno run
BTW, one last thing. The dyno runs were stopped at 5000rpm. On the tuned run the power was still climbing so I suppose there was a few hp to be seen if the engine had been run to 5400-5500rpm.
Well, I brought it back to them yesterday so they could see how things were running now that the tune has had a chance to run on the truck and also so they could load a 93 octane towing tune into my Xcal2. I told them not to bother with any 87 octane tunes because I had no intention of running less than 93 if I was going through the trouble of having my truck tuned.
So anyway, they did a dyno run with the performance tune they loaded a week earlier and found that nothing needed to be changed. I then asked them to do a simulated 1/4 mile run and also load the stock tune back in for a comparison.
I have linked the sheets below but here are the highlights:
2006 XLT Supercab
5.4 3.55ls
~65* ambient temp
Tuned:
HP: 237.0
Tq: 295.9
Stock:
HP: 177.0
Tq: 247.9
Before anyone tells me, I know that is a seriously low stock figure. I can only guess it is low because it had just been loaded and didn't have a chance to run a bit and also because my truck may have just been a dog from the factory. (lean @WOT? I didn't think to ask about a/f with the stock tune)
The important thing to note is that these runs were made within 20 minutes of each other under the same conditions. The truck was not removed from the dyno between runs. Also, the stock dyno run has a really bad spot where the power falls off for a bit between 3700-4700rpm. This must be the pcm's torque management at work because there was no shifting and the throttle was to the floor during the entire run. (if your stock truck feels like it has a flat spot during acceleration then this is what it looks like on paper) Also note the way power falls off after ~4750 on the stock tune.
As for how the truck feels, well it feels exactly the way those dyno sheets would indicate. It is a completely different truck. Before the tuning I couldn't get wheelspin on asphalt to save my life. After the tuning I can leave about 3-8 feet of rubber from a stop every time. Mid and upper rpms are hugely improved also and the truck just plain feels like it has 300 horsepower under the hood. Of course they also tweaked the transmission shift points and firmness.
The links:
Simulated 1/4 mile run
Tuned dyno run
Stock dyno run
BTW, one last thing. The dyno runs were stopped at 5000rpm. On the tuned run the power was still climbing so I suppose there was a few hp to be seen if the engine had been run to 5400-5500rpm.
Last edited by Aaron_j; Jan 29, 2006 at 05:44 PM.
Registered User
Joined: Feb 2005
Posts: 2,679
Likes: 0
From: Cape Cod, Ma
Originally Posted by Aaron_j
I went to the local dyno shop to have them finish tuning my truck. I had first left it with them about a week ago and they loaded a 93 octane performance tune but it was getting late in the day so they didn't get a chance to finish.
Well, I brought it back to them yesterday so they could see how things were running now that the tune has had a chance to run on the truck and also so they could load a 93 octane towing tune into my Xcal2. I told them not to bother with any 87 octane tunes because I had no intention of running less than 93 if I was going through the trouble of having my truck tuned.
So anyway, they did a dyno run with the performance tune they loaded a week earlier and found that nothing needed to be changed. I then asked them to do a simulated 1/4 mile run and also load the stock tune back in for a comparison.
I have linked the sheets below but here are the highlights:
2006 XLT Supercab
5.4 3.55ls
~65* ambient temp
Tuned:
HP: 237.0
Tq: 295.9
Stock:
HP: 177.0
Tq: 247.9
Before anyone tells me, I know that is a seriously low stock figure. I can only guess it is low because it had just been loaded and didn't have a chance to run a bit and also because my truck may have just been a dog from the factory. (lean @WOT? I didn't think to ask about a/f with the stock tune)
The important thing to note is that these runs were made within 20 minutes of each other under the same conditions. The truck was not removed from the dyno between runs. Also, the stock dyno run has a really bad spot where the power falls off for a bit between 3700-4700rpm. This must be the pcm's torque management at work because there was no shifting and the throttle was to the floor during the entire run. (if your stock truck feels like it has a flat spot during acceleration then this is what it looks like on paper) Also note the way power falls off after ~4750 on the stock tune.
As for how the truck feels, well it feels exactly the way those dyno sheets would indicate. It is a completely different truck. Before the tuning I couldn't get wheelspin on asphalt to save my life. After the tuning I can leave about 3-8 feet of rubber from a stop every time. Mid and upper rpms are hugely improved also and the truck just plain feels like it has 300 horsepower under the hood. Of course they also tweaked the transmission shift points and firmness.
The links:
Simulated 1/4 mile run
Tuned dyno run
Stock dyno run
BTW, one last thing. The dyno runs were stopped at 5000rpm. On the tuned run the power was still climbing so I suppose there was a few hp to be seen if the engine had been run to 5400-5500rpm.
Well, I brought it back to them yesterday so they could see how things were running now that the tune has had a chance to run on the truck and also so they could load a 93 octane towing tune into my Xcal2. I told them not to bother with any 87 octane tunes because I had no intention of running less than 93 if I was going through the trouble of having my truck tuned.
So anyway, they did a dyno run with the performance tune they loaded a week earlier and found that nothing needed to be changed. I then asked them to do a simulated 1/4 mile run and also load the stock tune back in for a comparison.
I have linked the sheets below but here are the highlights:
2006 XLT Supercab
5.4 3.55ls
~65* ambient temp
Tuned:
HP: 237.0
Tq: 295.9
Stock:
HP: 177.0
Tq: 247.9
Before anyone tells me, I know that is a seriously low stock figure. I can only guess it is low because it had just been loaded and didn't have a chance to run a bit and also because my truck may have just been a dog from the factory. (lean @WOT? I didn't think to ask about a/f with the stock tune)
The important thing to note is that these runs were made within 20 minutes of each other under the same conditions. The truck was not removed from the dyno between runs. Also, the stock dyno run has a really bad spot where the power falls off for a bit between 3700-4700rpm. This must be the pcm's torque management at work because there was no shifting and the throttle was to the floor during the entire run. (if your stock truck feels like it has a flat spot during acceleration then this is what it looks like on paper) Also note the way power falls off after ~4750 on the stock tune.
As for how the truck feels, well it feels exactly the way those dyno sheets would indicate. It is a completely different truck. Before the tuning I couldn't get wheelspin on asphalt to save my life. After the tuning I can leave about 3-8 feet of rubber from a stop every time. Mid and upper rpms are hugely improved also and the truck just plain feels like it has 300 horsepower under the hood. Of course they also tweaked the transmission shift points and firmness.
The links:
Simulated 1/4 mile run
Tuned dyno run
Stock dyno run
BTW, one last thing. The dyno runs were stopped at 5000rpm. On the tuned run the power was still climbing so I suppose there was a few hp to be seen if the engine had been run to 5400-5500rpm.
other than the Xcal2 is yor truck stock?
Senior Member
Joined: Aug 2004
Posts: 2,824
Likes: 0
From: North Huntingdon,Pa.
numbers
my 03 5.4 4x4 3.55
mac cai,magnafllow 15609-diablo chip
228 rwhp @ 4300-hit speed limiter
300 ft lbs @3800
best was a 16.7
i went to a troyer 9100 custom tuner-
in worse conditions-higher temps humidity and full tank of gas, wheel spin- was running 16.2's half second better than diablo and no limiter!
mac cai,magnafllow 15609-diablo chip
228 rwhp @ 4300-hit speed limiter
300 ft lbs @3800
best was a 16.7
i went to a troyer 9100 custom tuner-
in worse conditions-higher temps humidity and full tank of gas, wheel spin- was running 16.2's half second better than diablo and no limiter!
