TSE EFR NB2 Build Thread
#302
SADFab Destructive Testing Engineer
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1. Set up your wheel size so we can tell what gear you are in in the log.
2. In the second log your biggest spikes of noise are happening in areas of the map that you never hit in your first log.
4800rpm, max boost in 4th. In your first log you aren't at max load in 4th until 5400rpm.
The other spike is at 5600rpm in 5th. Which you don't hit in the first log.
That being said i've never played with the knock sensor and I don't know what your noise threshold values are set to, or even what percentage is considered actual knock.
2. In the second log your biggest spikes of noise are happening in areas of the map that you never hit in your first log.
4800rpm, max boost in 4th. In your first log you aren't at max load in 4th until 5400rpm.
The other spike is at 5600rpm in 5th. Which you don't hit in the first log.
That being said i've never played with the knock sensor and I don't know what your noise threshold values are set to, or even what percentage is considered actual knock.
#303
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1. Set up your wheel size so we can tell what gear you are in in the log.
2. In the second log your biggest spikes of noise are happening in areas of the map that you never hit in your first log.
4800rpm, max boost in 4th. In your first log you aren't at max load in 4th until 5400rpm.
The other spike is at 5600rpm in 5th. Which you don't hit in the first log.
That being said i've never played with the knock sensor and I don't know what your noise threshold values are set to, or even what percentage is considered actual knock.
2. In the second log your biggest spikes of noise are happening in areas of the map that you never hit in your first log.
4800rpm, max boost in 4th. In your first log you aren't at max load in 4th until 5400rpm.
The other spike is at 5600rpm in 5th. Which you don't hit in the first log.
That being said i've never played with the knock sensor and I don't know what your noise threshold values are set to, or even what percentage is considered actual knock.
#304
SADFab Destructive Testing Engineer
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You need to set that up so that we can tell what gear you are in. I don't know how it is hooked up on an MS3Basic.
Don't know, never played with the knock sensor on MS. My board is in the mail. Andrew might be more helpful.
#306
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Mine looks like this:
![](http://www.codrus.com/misc/vss-config.mid.png)
The "1.9" value is empirical, I have no idea why I need to tell it that the wheels are 6 feet in diameter in order to get the VSS to register something that's approximately correct, but that's what it took. I dug into the source code to try to figure out WTF it's doing and OMG the VSS-related calculations are a heap of undecipherable spaghetti.
(edit): Maybe it's lying about the units and it means "feet" when it says "meters"? Wouldn't be the first time TS/MS3 have gotten their units totally confused. That would actually make sense, 1.9 feet is pretty close to the ~23 inch nominal tire diameter.
--Ian
![](http://www.codrus.com/misc/vss-config.mid.png)
The "1.9" value is empirical, I have no idea why I need to tell it that the wheels are 6 feet in diameter in order to get the VSS to register something that's approximately correct, but that's what it took. I dug into the source code to try to figure out WTF it's doing and OMG the VSS-related calculations are a heap of undecipherable spaghetti.
(edit): Maybe it's lying about the units and it means "feet" when it says "meters"? Wouldn't be the first time TS/MS3 have gotten their units totally confused. That would actually make sense, 1.9 feet is pretty close to the ~23 inch nominal tire diameter.
--Ian
#318
Former Vendor
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I look for knock by analyzing all four individual cylinder graphs at the same time. If all four rise and fall at once, it's engine noise. On my built motor which is a bit noisier, I can actually see the center two cylinders rise and fall (closest to the knock sensor). If one cylinder jumps to 2-3x the others, that's a pretty clear indication of knock.
From "morning3":
![Name: qpMogpT.png
Views: 19
Size: 34.8 KB](https://www.miataturbo.net/attachments/build-threads-57/231124d1683052641-tse-efr-nb2-build-thread-qpmogpt.png)
That's knock on cyl#2. Not a lot, not very bad, but a tiny bit. You can also see a little on cyl around the 2sec mark. Could be as simple as running the car too lean there (12.4:1 in that range). I would fatten it up to 11.8 and pull 2deg of timing at that boost level. There's also a little puff of knock at 9.413s in the same log.
From "morning3":
![Name: qpMogpT.png
Views: 19
Size: 34.8 KB](https://www.miataturbo.net/attachments/build-threads-57/231124d1683052641-tse-efr-nb2-build-thread-qpmogpt.png)
That's knock on cyl#2. Not a lot, not very bad, but a tiny bit. You can also see a little on cyl around the 2sec mark. Could be as simple as running the car too lean there (12.4:1 in that range). I would fatten it up to 11.8 and pull 2deg of timing at that boost level. There's also a little puff of knock at 9.413s in the same log.
#319
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Your Gear detection values are still incorrect.
Use Flyin' Miatas' Gear Calculator, https://www.flyinmiata.com/tech/gearing.php, to get/set the correct values.
You need to define your Transmission, Rear End and Tyre Size as a minimum to get the correct values.
Use Flyin' Miatas' Gear Calculator, https://www.flyinmiata.com/tech/gearing.php, to get/set the correct values.
You need to define your Transmission, Rear End and Tyre Size as a minimum to get the correct values.