TTownEP
03-24-2012, 11:05 AM
Well, not in the usual meaning.
My speedometer and tachometer have been slightly off ever since my eBay fogs fried a circuit in the instrument cluster. I never got the needles back on in the exact same place. Since I am selling the car soon, I decided to get it recalibrated for the next owner. I figured the safest way to do that would be to put it on the dyno at work and replace the needles at speed without getting out on the open road. I found the chart of k-series transmissions over in the sticky, and using a calculator I found, came up with a chart of rpms versus selected gear to find the mph, based on the stock tire size (which I will soon be putting back on the wheels).
We input the transmission data into the dyno, and in 4th gear, it does the math and holds the engine at a given rpm that we specified.
Then it was just a matter of pulling the needles, and placing them back at the correct positions according to the chart. Everything seems to have worked flawlessly. I'll have to wait on tires to see if the calculations were correct, but it looks right to me so far, and the GPS backs up the speed, at least to a reasonable degree since I still have smaller-than-stock tires.
While it was up there, might as well make a few pulls!
On the first three runs, I was using a K&N style oiled filter attached to the stock air inlet tube. You can see it on top of the fan unit in the first pic. It made a lot of noise, and 122 hp. Since I am putting everything back to stock for the sale, on goes the airbox.
Bone stock (well, Hondata airbox mod) it made 130hp. Apparently that cooler air down by the battery is worth 8hp, haha.
http://youtu.be/D3Q-YmfWNv0
http://i22.photobucket.com/albums/b329/gryanholland/23f484b3.jpg
http://i22.photobucket.com/albums/b329/gryanholland/8dbad6db.jpg
http://i22.photobucket.com/albums/b329/gryanholland/77d8c085.jpg
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My speedometer and tachometer have been slightly off ever since my eBay fogs fried a circuit in the instrument cluster. I never got the needles back on in the exact same place. Since I am selling the car soon, I decided to get it recalibrated for the next owner. I figured the safest way to do that would be to put it on the dyno at work and replace the needles at speed without getting out on the open road. I found the chart of k-series transmissions over in the sticky, and using a calculator I found, came up with a chart of rpms versus selected gear to find the mph, based on the stock tire size (which I will soon be putting back on the wheels).
We input the transmission data into the dyno, and in 4th gear, it does the math and holds the engine at a given rpm that we specified.
Then it was just a matter of pulling the needles, and placing them back at the correct positions according to the chart. Everything seems to have worked flawlessly. I'll have to wait on tires to see if the calculations were correct, but it looks right to me so far, and the GPS backs up the speed, at least to a reasonable degree since I still have smaller-than-stock tires.
While it was up there, might as well make a few pulls!
On the first three runs, I was using a K&N style oiled filter attached to the stock air inlet tube. You can see it on top of the fan unit in the first pic. It made a lot of noise, and 122 hp. Since I am putting everything back to stock for the sale, on goes the airbox.
Bone stock (well, Hondata airbox mod) it made 130hp. Apparently that cooler air down by the battery is worth 8hp, haha.
http://youtu.be/D3Q-YmfWNv0
http://i22.photobucket.com/albums/b329/gryanholland/23f484b3.jpg
http://i22.photobucket.com/albums/b329/gryanholland/8dbad6db.jpg
http://i22.photobucket.com/albums/b329/gryanholland/77d8c085.jpg
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