|
|
|
|
08-20-2020, 02:23 PM
|
#1 |
|
Senior Member
Join Date: Dec 2008
Location: Rainy Washington
Posts: 609
Likes: 12
Liked 223 Times in 73 Posts
|
Re: Wire Shielding EMI or RF Noise?
Bobby yes i am using FAST dual syn dist. As far as my tach goes I dont use the replay on the tach just down load it to my computer via Tach facts software from autometer. I will check on the sample rate of both for a comparison will let you guys know what i find there.
Novadude Fast system datalogger is part the fuel injection ECU. So there is not a way filter it. will double check the schematic. let me know if I am wrong, may learn something new. Signman are you saying David Page is no longer with fast, if so what happened and where did he go?
__________________
James Boyce 6052 K/SA Stock National record holder 2015,2018,2 times in 2022,2023 |
|
|
|
08-21-2020, 09:24 AM
|
#2 | |
|
Senior Member
Join Date: Oct 2003
Location: Lower Slower Delaware
Posts: 535
Likes: 22
Liked 269 Times in 99 Posts
|
Re: Wire Shielding EMI or RF Noise?
Quote:
There was a major announcement last week. Edelbrock bought Compcams a while back. David moved on to a leadership position at Edelbrock believe heading a team that looks at trends and future projects and products.
__________________
Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given" |
|
|
|
|
| Liked |
|
08-24-2020, 11:20 PM
|
#3 |
|
VIP Member
Join Date: Nov 2009
Location: Egg Harbor Township, NJ
Posts: 1,468
Likes: 1,450
Liked 4,365 Times in 501 Posts
|
Re: Wire Shielding EMI or RF Noise?
I’m using copper tape as a shield on the cam signal, crank signal, and their shared signal ground. All 3 wires come out of distributor together along with 12v power and I have the shielding grounded at one end only. I separated the 12v wire right out of distributor as close as I could and put a ferrite bead on it. I also put ferrite beads on water pump 12v, alternator charging wire, and twisted the coil pos/neg wire from ignition box to coil and put one bead on the twist. Am I using them in the right spots? Should I put ferrite beads on the already shielded signal wires also? Thanks.
|
|
|
|
|
08-28-2020, 07:28 PM
|
#4 |
|
Senior Member
Join Date: Dec 2008
Location: Rainy Washington
Posts: 609
Likes: 12
Liked 223 Times in 73 Posts
|
Re: Wire Shielding EMI or RF Noise?
Ok finally got to look at both data loggers samples, The fast system sample is .05 seconds and my tach samples at .01 seconds. I know i can export my fast system to excel, i will check to see if i can export my tachfact software to excel also and the overlay a same run to see what is looks like. My tach down loads look much smoother then the fast system, I could be it is filtered some?
__________________
James Boyce 6052 K/SA Stock National record holder 2015,2018,2 times in 2022,2023 |
|
|
|
|
08-29-2020, 05:54 PM
|
#5 |
|
VIP Member
Join Date: Nov 2009
Location: Egg Harbor Township, NJ
Posts: 1,468
Likes: 1,450
Liked 4,365 Times in 501 Posts
|
Re: Wire Shielding EMI or RF Noise?
Yes I believe the tachfacts is being filtered and you are correct is it actually a better sample rate than the FAST. Mine does look better on tachfact but definitely not as nice as the super stocker looks on there. I went overboard with wire shield and ferrite cores so I will see what happens.
|
|
|
|
 |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
