[Z06] tuned on a dynometer?
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
I don't understand what you are saying? It's a Mustang dyno, they read low, if the A/F and timing are in place then there's not much more to expect for a car with a cold air intake IMHO.
How do you know everything is not OK? "A little rich down low" takes away next to nothing on HP and wouldn't effect the upper end regardless. I intentionally make most cars a little rich down low, I have found it decreases detonation up top. Not a pig rich mind you, but if it was then he would not have told you it was OK right?
As I said though, you are welcome to come here and I'll data log it for N/C, can't beat that for just a mail order tune that was confirmed "good" by another shop. All shops are in business to make money, if there were any corrections to be made worth making, they would have justifiably taken your money to do so.
How do you know everything is not OK? "A little rich down low" takes away next to nothing on HP and wouldn't effect the upper end regardless. I intentionally make most cars a little rich down low, I have found it decreases detonation up top. Not a pig rich mind you, but if it was then he would not have told you it was OK right?
As I said though, you are welcome to come here and I'll data log it for N/C, can't beat that for just a mail order tune that was confirmed "good" by another shop. All shops are in business to make money, if there were any corrections to be made worth making, they would have justifiably taken your money to do so.
Le Mans Master
Joined: Dec 2000
Posts: 6,957
Likes: 65
From: South FL
Dynos are a tool. Period. Your numbers do look low, but if the guy operating the dyno said the timing and air fuel look dead on, then there is obviously another issue. Possible valvespring issue? The tune could look fine and you'd never know otherwise with bad valvesprings.
For reference, my '01 with the same mods made 382/379 but on a dynojet also with a mail order tune.
For reference, my '01 with the same mods made 382/379 but on a dynojet also with a mail order tune.
Pro
Joined: Jun 2015
Posts: 642
Likes: 23
From: Roseville California
Can't go by that, the car is a manual, way to many variables to say the car should run "X" MPH. I couldn't tell you how many times I jumped in the seat of an auto and put 5 MPH on the owner, let alone manuals. Simply because I have thousands of passes down the drag strip, it's just like bowling, there's a knack to it. Not saying this individual cannot drive nor do I know his track experience, I'm sure he is awesome, but track experience makes a big difference on MPH just as much as ET.
Racer
Joined: Oct 2013
Posts: 260
Likes: 12
Just want to chime in here. We dynoed Jim's car Tuesday morning, the weather correction factor was at .990, which meant the dyno was removing 1% from the uncorrected number. As for the numbers our dyno is a bit stingy as are most Mustang Dyno's. I can tell you that the tune on the car was pretty much dead on. If it was not I would have let Jim know that there was an issue. Traction was off for sure!!! You cant run a car with traction on. Nothing I can see in the tune was indicating the issue Jim was concerned about. The AF was 12.2's on the hit and quickly climbed to between 12.4-12.7 through the RPM band, Timing was a steady 22, with no knock present and no IAT retard as well. As far as us not wanting the business, that's just silly. I just felt that the expense of a re-tune was not worth it for Jim, and also felt that it wasn't going to solve his concern.
Le Mans Master
Joined: Dec 2000
Posts: 6,957
Likes: 65
From: South FL
Just want to chime in here. We dynoed Jim's car Tuesday morning, the weather correction factor was at .990, which meant the dyno was removing 1% from the uncorrected number. As for the numbers our dyno is a bit stingy as are most Mustang Dyno's. I can tell you that the tune on the car was pretty much dead on. If it was not I would have let Jim know that there was an issue. Traction was off for sure!!! You cant run a car with traction on. Nothing I can see in the tune was indicating the issue Jim was concerned about. The AF was 12.2's on the hit and quickly climbed to between 12.4-12.7 through the RPM band, Timing was a steady 22, with no knock present and no IAT retard as well. As far as us not wanting the business, that's just silly. I just felt that the expense of a re-tune was not worth it for Jim, and also felt that it wasn't going to solve his concern.
Love this forum sometimes
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
Just want to chime in here. We dynoed Jim's car Tuesday morning, the weather correction factor was at .990, which meant the dyno was removing 1% from the uncorrected number. As for the numbers our dyno is a bit stingy as are most Mustang Dyno's. I can tell you that the tune on the car was pretty much dead on. If it was not I would have let Jim know that there was an issue. Traction was off for sure!!! You cant run a car with traction on. Nothing I can see in the tune was indicating the issue Jim was concerned about. The AF was 12.2's on the hit and quickly climbed to between 12.4-12.7 through the RPM band, Timing was a steady 22, with no knock present and no IAT retard as well. As far as us not wanting the business, that's just silly. I just felt that the expense of a re-tune was not worth it for Jim, and also felt that it wasn't going to solve his concern.
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
Well Im making a new appointment for another dyno run and will find out what's wrong with my car. When I sent my pcm to ecs I was under the impression they up the timing alittle..that's what it says on there website. My timing wasn't touched. Any results will be posted. Have not heard from jtm or doug since the last post on this thread. Thanks!
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Well Im making a new appointment for another dyno run and will find out what's wrong with my car. When I sent my pcm to ecs I was under the impression they up the timing alittle..that's what it says on there website. My timing wasn't touched. Any results will be posted. Have not heard from jtm or doug since the last post on this thread. Thanks!
I'm sorry, I did not know you wanted either of us to contact you. I do not have any other suggestions at this moment. The data logs from JTM show the car is on, so I do not foresee my logs being any different, but my offer still stands that I'll be glad to check it out myself for N/C. That's a pretty fair shake for a mail order tune that already got one "clean bill of health".
As for timing that's correct, we used to be able to raise timing from stock while leaning it out some too. Now the gas has not been as reliable as it used to be 10-15 years ago. This is my experience working to protect you and your engine. If I could safety, I would.
Have your tuner do a comparison of a stock file to your file, the list of changes is fairly long. Way more then most hand held programmers change.
JTM totally did the right thing for you by not taking your money to do next to nothing in changes. That says a lot about them IMHO.
We (ECS) are willing to do whatever is within reason to see if this is a case of a low reading dyno/higher customer expectations of bolt on's, or a legitimate problem. Again, I offered to do this for N/C earlier in this thread.
I'm trying to do anything I can for you, but since all the logs came up fine, I can't help you without seeing the vehicle.
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Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
I'm sorry, I did not know you wanted either of us to contact you. I do not have any other suggestions at this moment. The data logs from JTM show the car is on, so I do not foresee my logs being any different, but my offer still stands that I'll be glad to check it out myself for N/C. That's a pretty fair shake for a mail order tune that already got one "clean bill of health".
As for timing that's correct, we used to be able to raise timing from stock while leaning it out some too. Now the gas has not been as reliable as it used to be 10-15 years ago. This is my experience working to protect you and your engine. If I could safety, I would.
Have your tuner do a comparison of a stock file to your file, the list of changes is fairly long. Way more then most hand held programmers change.
JTM totally did the right thing for you by not taking your money to do next to nothing in changes. That says a lot about them IMHO.
We (ECS) are willing to do whatever is within reason to see if this is a case of a low reading dyno/higher customer expectations of bolt on's, or a legitimate problem. Again, I offered to do this for N/C earlier in this thread.
I'm trying to do anything I can for you, but since all the logs came up fine, I can't help you without seeing the vehicle.
As for timing that's correct, we used to be able to raise timing from stock while leaning it out some too. Now the gas has not been as reliable as it used to be 10-15 years ago. This is my experience working to protect you and your engine. If I could safety, I would.
Have your tuner do a comparison of a stock file to your file, the list of changes is fairly long. Way more then most hand held programmers change.
JTM totally did the right thing for you by not taking your money to do next to nothing in changes. That says a lot about them IMHO.
We (ECS) are willing to do whatever is within reason to see if this is a case of a low reading dyno/higher customer expectations of bolt on's, or a legitimate problem. Again, I offered to do this for N/C earlier in this thread.
I'm trying to do anything I can for you, but since all the logs came up fine, I can't help you without seeing the vehicle.
Racer
Joined: Oct 2013
Posts: 260
Likes: 12
Well Im making a new appointment for another dyno run and will find out what's wrong with my car. When I sent my pcm to ecs I was under the impression they up the timing alittle..that's what it says on there website. My timing wasn't touched. Any results will be posted. Have not heard from jtm or doug since the last post on this thread. Thanks!
John
Instructor
Joined: Nov 2015
Posts: 133
Likes: 22
From: Elma, New York
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
ok..alittle update I have been driving the car and power comes and goes were it will feel fast then slow. Well I got no check engine light but got tcs c1221h c1222h and c1248 can this be my issue?
Thread Starter
Drifting
Joined: Aug 2014
Posts: 1,632
Likes: 190
From: North pole
Well it looks like I got some bad gas!! Doug had mentioned that to me. I use nothing but shell 93 this gad station is fairly new and it was a sunoco. It is a busy gas station. I put in 7 gallons of BP and power and pull has come back, but I still had a 1/4 of a tank of bad fuel mixed. My ltft were in the - at idle don't know if that's normal
Safety Car
Joined: Jan 2012
Posts: 3,956
Likes: 520
From: Da U.P.
You guys are so hung up on where it stops climbing, but I'm looking at how long the thing holds on and it looks spot on in that respect. Knock retard would have a bigass trough that this car doesn't have.