98 F23 Turbo Accord first time at dyno
02-28-2021, 11:04 AM
#1
98 F23 Turbo Accord first time at dyno
What’s up guys, I’m taking my car to the dyno this Thursday and I wanted to know what the process is like because it’s my first time. I already made sure everything is good mechanical wise and I’ll have a full tank of gas.
My car has a turbo kit with a 57 trim T3/T4 running 10psi, 450cc injectors, high performance 340lph fuel pump, a 3” straight pipe to vibrant muffler and a chipped P28 ECU with a basemap put on from my mechanic in a street tune.
My car has a turbo kit with a 57 trim T3/T4 running 10psi, 450cc injectors, high performance 340lph fuel pump, a 3” straight pipe to vibrant muffler and a chipped P28 ECU with a basemap put on from my mechanic in a street tune.
Last edited by JDM_ACE; 02-28-2021 at 01:26 PM.
02-28-2021, 12:27 PM
#2
Re: 98 F23 Turbo Accord first time at dyno
Nothing to it.
You will roll in, if they are ready for you you probably drive it up onto the dyno. They then spend 15-20 minutes strapping it down to the down so it doesn't fly off.
Then you hook up the laptop and any other diagnostic, grounding straps, etc.
Then you start the car, get it rolling (usually they will want to drive the car at this point), just to get it into the right gear, and to warm it up. So with an auto of these years you would put it into 3rd instead of overdrive, a manual I presume 4th instead of overdrive.
Then they will get it up to maybe 2500-3000RPM....verify it's showing connected on the dyno, and then you floor it up to redline (or wherever you pick if not redline or if beyond redline with your ECU) and then let off.....
it will wind back down slowly until close to idle, and then they will brake.
If you are tuning while there, then you want a wideband connected up, if you don't have one, then they will attach one (either you have a bung or they will have to drill in a bung for it), but this is so they can watch rich/lean trim and then offer suggestions on tuning (if you paid for that) or you can adjust yourself based on what you see.
You should see your score at this point on the dyno screen.
If this is a mustang dyno, it's a little different, they will take off your front wheels to bolt it to the dyno.
Remember, at the end of the day that is Wheel horsepower, not raw engine horsepower.
Often you get 3 runs and average them to determine your score. As your car heat soaks, the score will most likely go down a bit.
You will roll in, if they are ready for you you probably drive it up onto the dyno. They then spend 15-20 minutes strapping it down to the down so it doesn't fly off.
Then you hook up the laptop and any other diagnostic, grounding straps, etc.
Then you start the car, get it rolling (usually they will want to drive the car at this point), just to get it into the right gear, and to warm it up. So with an auto of these years you would put it into 3rd instead of overdrive, a manual I presume 4th instead of overdrive.
Then they will get it up to maybe 2500-3000RPM....verify it's showing connected on the dyno, and then you floor it up to redline (or wherever you pick if not redline or if beyond redline with your ECU) and then let off.....
it will wind back down slowly until close to idle, and then they will brake.
If you are tuning while there, then you want a wideband connected up, if you don't have one, then they will attach one (either you have a bung or they will have to drill in a bung for it), but this is so they can watch rich/lean trim and then offer suggestions on tuning (if you paid for that) or you can adjust yourself based on what you see.
You should see your score at this point on the dyno screen.
If this is a mustang dyno, it's a little different, they will take off your front wheels to bolt it to the dyno.
Remember, at the end of the day that is Wheel horsepower, not raw engine horsepower.
Often you get 3 runs and average them to determine your score. As your car heat soaks, the score will most likely go down a bit.
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02-28-2021, 07:58 PM
#3
Re: 98 F23 Turbo Accord first time at dyno
Nothing to it.
You will roll in, if they are ready for you you probably drive it up onto the dyno. They then spend 15-20 minutes strapping it down to the down so it doesn't fly off.
Then you hook up the laptop and any other diagnostic, grounding straps, etc.
Then you start the car, get it rolling (usually they will want to drive the car at this point), just to get it into the right gear, and to warm it up. So with an auto of these years you would put it into 3rd instead of overdrive, a manual I presume 4th instead of overdrive.
Then they will get it up to maybe 2500-3000RPM....verify it's showing connected on the dyno, and then you floor it up to redline (or wherever you pick if not redline or if beyond redline with your ECU) and then let off.....
it will wind back down slowly until close to idle, and then they will brake.
If you are tuning while there, then you want a wideband connected up, if you don't have one, then they will attach one (either you have a bung or they will have to drill in a bung for it), but this is so they can watch rich/lean trim and then offer suggestions on tuning (if you paid for that) or you can adjust yourself based on what you see.
You should see your score at this point on the dyno screen.
If this is a mustang dyno, it's a little different, they will take off your front wheels to bolt it to the dyno.
Remember, at the end of the day that is Wheel horsepower, not raw engine horsepower.
Often you get 3 runs and average them to determine your score. As your car heat soaks, the score will most likely go down a bit.
You will roll in, if they are ready for you you probably drive it up onto the dyno. They then spend 15-20 minutes strapping it down to the down so it doesn't fly off.
Then you hook up the laptop and any other diagnostic, grounding straps, etc.
Then you start the car, get it rolling (usually they will want to drive the car at this point), just to get it into the right gear, and to warm it up. So with an auto of these years you would put it into 3rd instead of overdrive, a manual I presume 4th instead of overdrive.
Then they will get it up to maybe 2500-3000RPM....verify it's showing connected on the dyno, and then you floor it up to redline (or wherever you pick if not redline or if beyond redline with your ECU) and then let off.....
it will wind back down slowly until close to idle, and then they will brake.
If you are tuning while there, then you want a wideband connected up, if you don't have one, then they will attach one (either you have a bung or they will have to drill in a bung for it), but this is so they can watch rich/lean trim and then offer suggestions on tuning (if you paid for that) or you can adjust yourself based on what you see.
You should see your score at this point on the dyno screen.
If this is a mustang dyno, it's a little different, they will take off your front wheels to bolt it to the dyno.
Remember, at the end of the day that is Wheel horsepower, not raw engine horsepower.
Often you get 3 runs and average them to determine your score. As your car heat soaks, the score will most likely go down a bit.
03-02-2021, 07:59 AM
#5
Re: 98 F23 Turbo Accord first time at dyno
The front lip and rims are off for the winter, but will get put back on in the Spring. Also the second picture was from before my turbo install, so the exhaust has changed since then to a 3” pipe from the downpipe out to the vibrant muffler.
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03-03-2021, 05:26 PM
#8
Re: 98 F23 Turbo Accord first time at dyno
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03-05-2021, 12:39 AM
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