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Search: Posts Made By: rv6ejguy
Forum: Alternative Engines Today, 09:19 PM
Replies: 196
Views: 47,436
Posted By rv6ejguy
Exciting stuff Dave. Thanks for the update. Hope...

Exciting stuff Dave. Thanks for the update. Hope the testing go smoothly with no big surprises- except good ones!
Forum: Fuel Injection Systems Today, 07:12 AM
Replies: 9
Views: 1,170
Posted By rv6ejguy
We received our new batch of EM-5 ECU boards...

We received our new batch of EM-5 ECU boards yesterday afternoon from the loading facility.

More 60mm throttle bodies are out of the machine shop and anodizing now too and we got a new shipment of...
Forum: Electrical Systems Yesterday, 06:51 PM
Replies: 295
Views: 31,139
Posted By rv6ejguy
I am referring to post #251 with this schematic:...

I am referring to post #251 with this schematic: https://dms.ntsb.gov/public/61000-61499/61262/615998.pdf

Single 10A breaker protecting 2 coils and 4 injectors is a bad idea.
Forum: Electrical Systems Yesterday, 05:02 PM
Replies: 295
Views: 31,139
Posted By rv6ejguy
Breaker Sizes!!!

I've gone back a ways in this discussion to the schematic in the links posted by Dan of the accident aircraft.

The 10A fuse recommended in the schematic for the 2 coil packs and 4 injectors is plain...
Forum: Fuel Injection Systems 01-21-2020, 08:25 PM
Replies: 102
Views: 18,514
Posted By rv6ejguy
Good stuff. Thanks Nick. I'm still gathering your...

Good stuff. Thanks Nick. I'm still gathering your parts together. Sorry for the wait.
Forum: Rocket 01-18-2020, 06:57 AM
Replies: 42
Views: 10,656
Posted By rv6ejguy
John, still not seeing the photo here.

John, still not seeing the photo here.
Forum: Fuel Injection Systems 01-16-2020, 06:57 PM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Website

One of my customers said he was unable to see our Home Page for the last couple of days. Sure enough, I tried to view it today and there was nothing there at all, not even a 404.

Was my fault after...
Forum: Fuel Injection Systems 01-13-2020, 09:08 PM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Design2 Programmer and Engine Temp Sensors

Given the amazing positive response for the slim, rectangular Design1 programmer, we've decided to delay the design process on the 3 1/8 round type replacement (Design2) until after the EM-6 ECU...
Forum: Electronic Ignition Systems 01-13-2020, 12:16 PM
Replies: 22
Views: 2,136
Posted By rv6ejguy
Amen Dan. The OP is posting about his...

Amen Dan.

The OP is posting about his experiences here. Let's keep this thread focused on that.
Forum: Electronic Ignition Systems 01-12-2020, 07:44 PM
Replies: 22
Views: 2,136
Posted By rv6ejguy
Thanks for posting your pix and experiences here...

Thanks for posting your pix and experiences here Mike. Installation looks good and easy to get to the ECU.
Forum: Electronic Ignition Systems 01-10-2020, 08:08 PM
Replies: 15
Views: 949
Posted By rv6ejguy
Test Vid Uploaded

https://youtu.be/U6QVzTjKKmc
Forum: Electronic Ignition Systems 01-10-2020, 01:36 PM
Replies: 15
Views: 949
Posted By rv6ejguy
I'd expect current draw on a CPI would be...

I'd expect current draw on a CPI would be slightly lower than the CPI-2 values as the controller draws a bit less current itself. The coil hardware and standard charging strategies are the same...
Forum: Electronic Ignition Systems 01-10-2020, 01:33 PM
Replies: 15
Views: 949
Posted By rv6ejguy
In bench testing, looking at the wave form as the...

In bench testing, looking at the wave form as the coil charges, peak current can reach around 10-12 amps. We typically charge the 4 cylinder coils for 3.6 ms on naturally aspirated...
Forum: Electronic Ignition Systems 01-10-2020, 09:05 AM
Replies: 15
Views: 949
Posted By rv6ejguy
Thank you Steve. Every customer is important to...

Thank you Steve. Every customer is important to us. Customers are the ones who sign our paychecks effectively and allow us to continue improving our products which make them more functional,...
Forum: Electronic Ignition Systems 01-09-2020, 10:35 PM
Replies: 15
Views: 949
Posted By rv6ejguy
Current Draw Numbers

Ok here are some numbers from the testing today:

4 Cylinder, single coil pack and controller

1000 rpm- .76 amps
1500- 1.04
2000- 1.31
2500- 2.09
3000- 1.82
Forum: Electrical Systems 01-09-2020, 06:37 PM
Replies: 26
Views: 1,440
Posted By rv6ejguy
With CPI-2, you'll know right away if you should...

With CPI-2, you'll know right away if you should even start the flight regarding the BU battery condition. We have settings for both Lead Acid and LiFePO4 batteries in the controller for charging and...
Forum: Electrical Systems 01-09-2020, 06:34 PM
Replies: 26
Views: 1,440
Posted By rv6ejguy
SDS uses a straight inductive discharge coil...

SDS uses a straight inductive discharge coil setup as the majority of OEM automotive ignition systems use and runs at a nominal 14V. This is not CDI. There is no 400-600V on the primaries.

As I...
Forum: Electronic Ignition Systems 01-09-2020, 01:32 PM
Replies: 15
Views: 949
Posted By rv6ejguy
We managed to run some tests here today so I'll...

We managed to run some tests here today so I'll try to sift the results and put up a vid and some numbers here soon.
Forum: Electrical Systems 01-09-2020, 01:22 PM
Replies: 26
Views: 1,440
Posted By rv6ejguy
CPI-2 Specific Observations

Relating to the SDS CPI-2 with backup battery, you don't need anything else connected to it and in fact, you shouldn't. You just need electrons present.

The controllers have internal OV protection,...
Forum: Electrical Systems 01-09-2020, 09:09 AM
Replies: 26
Views: 1,440
Posted By rv6ejguy
Someone brought up the possibility of creating a...

Someone brought up the possibility of creating a harmonic by adding our triggering magnets to the flywheel. Not sure where this idea came from.

The magnets and set screws weigh around 1 gram per...
Forum: Electronic Ignition Systems 01-08-2020, 05:50 PM
Replies: 15
Views: 949
Posted By rv6ejguy
A couple of general notes here. 4 cylinder coil...

A couple of general notes here.

4 cylinder coil packs draw less current than 6 cylinder ones at a given rpm.

Current draw generally increases with increasing rpm (higher spark frequency). Pulling...
Forum: Temp / Test / Misc. (posts deleted after 2 weeks) 01-07-2020, 07:02 AM
Replies: 11
Views: 1,163
Posted By rv6ejguy
I see a bunch of broken links on the ads on the...

I see a bunch of broken links on the ads on the left margin of the Forums Page today.
Forum: Fuel Injection Systems 01-06-2020, 09:10 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Most any brand of 18AH AGM weighs around 12...

Most any brand of 18AH AGM weighs around 12 pounds, take your pick...
Forum: Fuel Injection Systems 01-06-2020, 09:20 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
2.2 pounds to start your engine is amazing...

2.2 pounds to start your engine is amazing however it doesn't compare in lasting power to a true 16AH AGM at 11 amps draw as the test shows. You can go up to a pair of the "36AH" model at under 5...
Forum: Fuel Injection Systems 01-05-2020, 04:56 PM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Design1 Programmer Upgrades

We've had tremendous response for the Design1 programmer and have had a number of people ask if their older EM-5 ECUs can drive these.

The answer is yes if you send them in to be reflashed.

We have...
Forum: Fuel Injection Systems 01-05-2020, 04:30 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Well if we take my test at face value- around 11...

Well if we take my test at face value- around 11 amps draw for 20 minutes, the AH rating comes out to about 3.7.

Figuring in the degraded performance at the test temp of 8C vs. the usual rating...
Forum: Fuel Injection Systems 01-05-2020, 03:09 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Yes, if you look through this thread, you'll see...

Yes, if you look through this thread, you'll see that these so called 18AH Shorais are closer to 6AH in terms of this sort of current draw over 20ish minutes. Great for starting the engine but...
Forum: Fuel Injection Systems 01-05-2020, 01:36 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Video

Here is the video I put together on the test: https://www.youtube.com/watch?v=FPBaAil4dNg

This kind of thing is like watching paint dry so I really shortened it up just showing the essentials.
Forum: Fuel Injection Systems 01-04-2020, 12:41 PM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Krea, I have your dyno test harness done now....

Krea, I have your dyno test harness done now. Just wanted to be sure you have the proper drilling jig for the AFS flywheel. Yours should have 3/16 holes. Let me know before I ship this other stuff.
Forum: Fuel Injection Systems 01-04-2020, 09:45 AM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Airflow Systems A/C Flywheel Drilling for SDS Magnets

Adrian Port from Tasmania was kind enough to put this page together on how he did his install here: http://tasrv10.com/?p=2822

We have a special drilling jig for these to compensate for the slight...
Forum: Electrical Systems 01-04-2020, 09:40 AM
Replies: 2
Views: 248
Posted By rv6ejguy
https://www.recreationalflying.com/forums/topic/62...

https://www.recreationalflying.com/forums/topic/62391-ssb-lithium-iron-batteries/page/4/ Posts #80 and 83.

I read it fast this morning so this appears to be only a new regulator, not alternator. My...
Forum: Electrical Systems 01-04-2020, 08:20 AM
Replies: 2
Views: 248
Posted By rv6ejguy
New Rotax Alternator

I was on an Australian aviation forum this morning and was interested to see some posts about development of a new regulator for Rotax 912 engines. Seems they have a prototype running on the bench...
Forum: Fuel Injection Systems 01-03-2020, 10:30 AM
Replies: 9
Views: 1,170
Posted By rv6ejguy
Service Bulletin

We've seen a couple instances where temp sensor wiring has been tie wrapped to spark plug wires. This should NEVER be done and has led to ECUs being damaged. No EFI/ EI wires should ever be touching...
Forum: Fuel Injection Systems 01-02-2020, 10:35 AM
Replies: 9
Views: 1,170
Posted By rv6ejguy
SDS EFI in 2020

Many thanks to all the VAF members who placed orders with us last year and I hope everyone on VAF has a healthy and happy 2020.

So far this year, we have an order backlog of around 14 days...
Forum: Fuel Injection Systems 12-28-2019, 08:33 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
From some of the research other posters did here,...

From some of the research other posters did here, it seems that the Shorai 18AH rated battery that I am using would have a rating closer to 6AH in terms of the slow draw specs generally used to rate...
Forum: Fuel Injection Systems 12-28-2019, 08:25 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Good stuff Vic. An engineer who worked on...

Good stuff Vic.

An engineer who worked on lithium battery development and testing for 10 years sent me an email a couple of days ago with a lot of useful information and observations. One paragraph...
Forum: Fuel Injection Systems 12-27-2019, 12:00 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
The Odyssey was my main battery for 6 years in my...

The Odyssey was my main battery for 6 years in my RV and was starting to show signs of slightly slower cranking on a cold engine. It already had hundreds of cycles on it. The Shorai was new back in...
Forum: Fuel Injection Systems 12-27-2019, 09:39 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Both components are important but this thread...

Both components are important but this thread just deals with with the battery discussion. For clarity, let's keep it confined to that topic please.

There have been plenty of other threads already...
Forum: Fuel Injection Systems 12-27-2019, 07:04 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Valid point so you can do your own test on...

Valid point so you can do your own test on whatever gear you will be running on your backup battery- lighting, glass panel, coils and injectors, fuel pumps etc.

I just opened the door on the matter...
Forum: Fuel Injection Systems 12-26-2019, 10:52 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Agreed. I only tested Shorai. Results on other...

Agreed. I only tested Shorai. Results on other brands are likely to vary.

There are a few different criteria used in ratings and they are not strictly comparable. In light of this, best to do actual...
Forum: Fuel Injection Systems 12-26-2019, 10:46 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
One of those Reno aircraft was owned by a friend...

One of those Reno aircraft was owned by a friend and he was not aware the battery wasn't being charged. As I learned many years ago, have aural voltage warning, not just visual. Visual indications...
Forum: Fuel Injection Systems 12-25-2019, 01:27 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Remember the ratings are established at 25C. At...

Remember the ratings are established at 25C. At 11 amps draw, I'd expect it would warm up in a couple of minutes since these are very low mass. This battery weighs only 2.2 pounds.

Experiments often...
Forum: Fuel Injection Systems 12-25-2019, 11:14 AM
Replies: 57
Views: 3,379
Posted By rv6ejguy
In the last few minutes, the lithium voltage...

In the last few minutes, the lithium voltage dropped quite rapidly. At 12.9V, there is only 20% remaining so it might have run for another 3-4 minutes at most. You can see the rapid drop off on the...
Forum: Fuel Injection Systems 12-24-2019, 07:40 PM
Replies: 57
Views: 3,379
Posted By rv6ejguy
Backup Battery Testing LiFePO4 vs. AGM

I spent most of the day making up a test rig to load test my fairly new backup Shorai LiFePO4 battery and for comparison, a 6 year old PC680 AGM.

I made up an array of seven 20 watt Halogen bulbs,...
Forum: RV Building Tips/Techniques 12-22-2019, 10:06 AM
Replies: 9
Views: 586
Posted By rv6ejguy
I looked this up about a year ago and some...

I looked this up about a year ago and some manufacturers had cautions about their products in proximity to acrylics. There were some similar products with different formulations specifically for use...
Forum: Fuel Injection Systems 12-22-2019, 09:59 AM
Replies: 144
Views: 34,409
Posted By rv6ejguy
Unfortunately my ace welder friend retired last...

Unfortunately my ace welder friend retired last year so I don't have an economical alternative who can do top quality work.

Ideally, if Superior would be agreeable, they could install our flanges...
Forum: Electronic Ignition Systems 12-21-2019, 07:01 PM
Replies: 317
Views: 62,535
Posted By rv6ejguy
We've had a flurry of CPI-2 orders in December....

We've had a flurry of CPI-2 orders in December. Thank you to every one who has placed an order. Working to get most of these shipped before the end of the year but some of our suppliers are slow in...
Forum: Fuel Injection Systems 12-21-2019, 06:51 PM
Replies: 144
Views: 34,409
Posted By rv6ejguy
I sent a PM to Pat early this morning.

I sent a PM to Pat early this morning.
Forum: Fuel Injection Systems 12-19-2019, 08:23 AM
Replies: 83
Views: 19,595
Posted By rv6ejguy
Manual Updates

A few days ago I uploaded some revised manuals which have updated information on the new Design1 programmers. See the Aircraft Page under Documentation.

Production is booked up through the first...
Forum: Fuel Injection Systems 12-14-2019, 09:17 AM
Replies: 102
Views: 18,514
Posted By rv6ejguy
The first three Design1 programmers shipped last...

The first three Design1 programmers shipped last week, 2 with new EM-5 orders and one to long time SDS customer and friend Rusty Crawford who is doing a panel upgrade on his 7A. Rusty is our high...
Forum: Northwest 12-14-2019, 09:05 AM
Replies: 19
Views: 2,285
Posted By rv6ejguy
Correct, the rev limiter may be of use with a...

Correct, the rev limiter may be of use with a completely lost prop or a partial governor failure as we've seen a couple times at Reno. Won't do much in this case.
Forum: RV-10 12-13-2019, 06:47 PM
Replies: 49
Views: 19,861
Posted By rv6ejguy
Interesting observations on the seat/ valve...

Interesting observations on the seat/ valve recession. I think I talked to David Brown on this one. I wonder if seat material has changed in newer engines?

What vintage were the cylinders on this...
Forum: Alternative Engines 12-13-2019, 06:39 PM
Replies: 8
Views: 1,331
Posted By rv6ejguy
Jeff, Gen 2. Thanks for catching that, edited.

Jeff, Gen 2. Thanks for catching that, edited.
Forum: Northwest 12-13-2019, 07:31 AM
Replies: 19
Views: 2,285
Posted By rv6ejguy
Keith, where is your real-world data to back up...

Keith, where is your real-world data to back up your theoretical calcs and claims here? How do you calculate failure rates without data?

It seems you think chips, resistors and caps are falling off...
Forum: Northwest 12-12-2019, 11:02 AM
Replies: 19
Views: 2,285
Posted By rv6ejguy
Stats

For transparency and clarity, I dug up my post from 10/11/17 in another EI reliability thread to save people the trouble of searching:

"Well, I'll break the mold here and publish our stats if you...
Forum: Northwest 12-12-2019, 06:19 AM
Replies: 19
Views: 2,285
Posted By rv6ejguy
Sorry, it does seem like your intent was to cast...

Sorry, it does seem like your intent was to cast aspersions on EFI with no admitted real world experience with them. The OP asked people to comment on their experiences and you have stated you have...
Forum: Electronic Ignition Systems 12-11-2019, 09:39 PM
Replies: 6
Views: 425
Posted By rv6ejguy
Sorry DPST.

Sorry DPST.
Forum: RV General Discussion/News 12-11-2019, 09:01 PM
Replies: 10
Views: 1,254
Posted By rv6ejguy
Yup. Sound advice.

Yup. Sound advice.
Forum: Fuel Injection Systems 12-11-2019, 08:59 PM
Replies: 102
Views: 18,514
Posted By rv6ejguy
Design1 Video

Short vid showing the first production Design1 programmer.

https://youtu.be/vucst8RYeWE

I'll do a more in depth one showing the new screens when I get more time. Busy filling as many orders as...
Forum: Northwest 12-11-2019, 08:06 PM
Replies: 19
Views: 2,285
Posted By rv6ejguy
We have something over 1400 single ECU systems...

We have something over 1400 single ECU systems flying including the one in our company RV for 17 years. My guess is these single ECU systems account for about 500,000 of the 700,000 total flight...
Forum: Electronic Ignition Systems 12-11-2019, 01:58 PM
Replies: 6
Views: 425
Posted By rv6ejguy
We found that some electronics leak tiny amount...

We found that some electronics leak tiny amount current onto the bus and this was sometimes enough to keep the CPI from shutting down.
Forum: Northwest 12-11-2019, 01:49 PM
Replies: 19
Views: 2,285
Posted By rv6ejguy
We've offered dual redundant ECUs since 2015 and...

We've offered dual redundant ECUs since 2015 and this is the choice of the majority of aviation buyers now.

Each ECU board has separate power and ground wires and separate sensor suites. Each ECU...
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