LRP SXX StockSpec V2 ESC
03-16-2011, 02:32 AM
#166
We use thick copper boards, in order to minimse losses and get maximum performance, but that indeed results in the fact that power wires are a bit harder to solder if a "weak" soldering-station/-iron is used.
Also there is a reason why we don't use solder posts, which is the fact that solderposts increase losses, direct connection to the PCB like it is realised on the SXX is best for performance.
Out of curiosity, would you trade a little bit of performance for easier solderabilty (right word?)?
Also there is a reason why we don't use solder posts, which is the fact that solderposts increase losses, direct connection to the PCB like it is realised on the SXX is best for performance.
Out of curiosity, would you trade a little bit of performance for easier solderabilty (right word?)?
like what loss are we talking about?
1 millionth of an ohm?
PS, yeah your response sounded good, but we are not all idiots.
This BS that LRP seems to churn out, make me not want an LRP again.
03-16-2011, 02:55 AM
#167
Mr.hacker: I don't understand why you are so aggressive in most of your posts, there really is no reason for that in my opinion.
Believe me, I know what I'm saying and I don't try to fool anyone here!
We have done testing/measurements with/without solder posts of course and the difference is easily noticable on the bench and dyno. It may not be noticable on the track for certain low power classes, but at the end every little thing can matter and usually you guys are also looking for every little 0.1% advantage...
The difference of with/without solderpost is about as big as the difference of one less fet per phase.
Believe me, I know what I'm saying and I don't try to fool anyone here!
We have done testing/measurements with/without solder posts of course and the difference is easily noticable on the bench and dyno. It may not be noticable on the track for certain low power classes, but at the end every little thing can matter and usually you guys are also looking for every little 0.1% advantage...
The difference of with/without solderpost is about as big as the difference of one less fet per phase.
03-16-2011, 03:08 AM
#168
Mr.hacker: I don't understand why you are so aggressive in most of your posts, there really is no reason for that in my opinion.
Believe me, I know what I'm saying and I don't try to fool anyone here!
We have done testing/measurements with/without solder posts of course and the difference is easily noticable on the bench and dyno. It may not be noticable on the track for certain low power classes, but at the end every little thing can matter and usually you guys are also looking for every little 0.1% advantage...
The difference of with/without solderpost is about as big as the difference of one less fet per phase.
Believe me, I know what I'm saying and I don't try to fool anyone here!
We have done testing/measurements with/without solder posts of course and the difference is easily noticable on the bench and dyno. It may not be noticable on the track for certain low power classes, but at the end every little thing can matter and usually you guys are also looking for every little 0.1% advantage...
The difference of with/without solderpost is about as big as the difference of one less fet per phase.
so whats the resistance of a gold plated solder post?
if it makes 1mm of a difference in performance, it wouldnt matter anyway as my GM/tekin/HW will already be 2 metres ahead of it to begin with......
03-16-2011, 03:42 AM
#169
Thanks for the info, Reto. That does seem like a pretty big difference, at least on paper. I think you guys are the last manufacturer to use this style of soldering, so perhaps the others have decided the difference isn't worth the inconvenience? Either way, I appreciate you taking suggestions into consideration.
03-16-2011, 01:38 PM
#173
Tech Apprentice
I'm going to run my sxx stockspec v2 (up dated to 4.4) and lrp13.5 x12 tomorrow at maritime, I'v set gearing to 6 overall, set mode 2 at 4, and mode 3 at 5. The motor out of the box had the 4 dot timing block fitted for some reason, so fitted the 2 dot block. Lets see how it go's
03-16-2011, 02:44 PM
#175
I'm going to run my sxx stockspec v2 (up dated to 4.4) and lrp13.5 x12 tomorrow at maritime, I'v set gearing to 6 overall, set mode 2 at 4, and mode 3 at 5. The motor out of the box had the 4 dot timing block fitted for some reason, so fitted the 2 dot block. Lets see how it go's
03-16-2011, 05:13 PM
#176
I'm going to run my sxx stockspec v2 (up dated to 4.4) and lrp13.5 x12 tomorrow at maritime, I'v set gearing to 6 overall, set mode 2 at 4, and mode 3 at 5. The motor out of the box had the 4 dot timing block fitted for some reason, so fitted the 2 dot block. Lets see how it go's
Totally agree with Sean in that I would run the 0000 insert. It's early days yet with setup, I was looking to start with an FDR of 7 because the X12's like to rev, agree with you on mode 2 @ 4 but was looking to start mode 3 @ 8 or 9, check temps after 2 mins (very important). Depending on how it felt and temps, would consider going up from a FDR of 7 to 7.5 and compare, then work from there.
I might not make it tomorrow because its the last 1/12th National this weekend and leaving Friday to go oop north. Good luck with it, like to hear how you get on.
Terry
03-17-2011, 01:44 AM
#180
Tech Apprentice