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Search: Posts Made By: rv6ejguy
Forum: Fuel Injection Systems 04-15-2021, 08:38 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
I can't sweat it any more, it's just a fact of...

I can't sweat it any more, it's just a fact of life now. When orders triple over a period of 6 months or so, it becomes impossible to produce that many kits on the same timeline while retaining QC...
Forum: Alternative Engines 04-15-2021, 12:46 PM
Replies: 9
Views: 655
Posted By rv6ejguy
Mark at AM has had delivery trouble with his gear...

Mark at AM has had delivery trouble with his gear suppliers lately and is behind on filling orders. That may not be important if you haven't started your build yet though.

AM has the best offerings...
Forum: Fuel Injection Systems 04-15-2021, 11:12 AM
Replies: 12
Views: 2,591
Posted By rv6ejguy
Update

Barry has devoted a lot of time lately to new software destined for the EM-6. He knocked down one of the major projects on that front yesterday and will start on the last major software project next...
Forum: RV-9/9A 04-11-2021, 07:09 AM
Replies: 8
Views: 568
Posted By rv6ejguy
Lots of folks running mogas in Lycomings here on...

Lots of folks running mogas in Lycomings here on VAF...
Forum: Traditional Aircraft Engines 04-06-2021, 06:32 PM
Replies: 2
Views: 303
Posted By rv6ejguy
Best BSFC usually occurs at a composite of...

Best BSFC usually occurs at a composite of highest VE (torque peak rpm) and lowest frictional losses (somewhat lower than TP rpm usually) at WOT.

O-360 torque peak is around 1800 rpm, IO-360 at...
Forum: RV-14 04-05-2021, 05:38 AM
Replies: 32
Views: 3,743
Posted By rv6ejguy
Lots of folks running Mogas in Lycs and you can...

Lots of folks running Mogas in Lycs and you can retrofit EFI and EI easily on a 390. We're done a number of them now.
Forum: Electrical Systems 03-25-2021, 12:26 PM
Replies: 61
Views: 6,136
Posted By rv6ejguy
The OE auto sealed connectors work well. They...

The OE auto sealed connectors work well. They were designed for high salt/water environments- FAR worse than anything RVs will ever see. We've used them in marine applications. Never see corrosion...
Forum: Electrical Systems 03-24-2021, 07:39 AM
Replies: 61
Views: 6,136
Posted By rv6ejguy
Many Molex connectors commonly used are not...

Many Molex connectors commonly used are not weatherproof and are not designed for FWF in our application. If that's where you're making connections, I agree, they should be Deutsch or Weatherpack...
Forum: Electrical Systems 03-22-2021, 05:54 AM
Replies: 61
Views: 6,136
Posted By rv6ejguy
I'm surprised to see the hate on apparently all...

I'm surprised to see the hate on apparently all Molex connectors here.

We've been using them in various forms on all our EFI and EI products for 27 years and closing in on 11,000 controllers now....
Forum: Alternative Engines 03-21-2021, 08:01 AM
Replies: 11
Views: 4,753
Posted By rv6ejguy
If you're looking at putting this in a -10, it...

If you're looking at putting this in a -10, it will weigh at least 100 pounds more than a 540 with cooling system and gearbox.

Reliable gearboxes with provisions for hydraulic C/S props are...
Forum: RV General Discussion/News 03-20-2021, 08:05 PM
Replies: 14
Views: 1,595
Posted By rv6ejguy
You got me beat by a bit. I had an 847 knot GS...

You got me beat by a bit. I had an 847 knot GS reading one day when I forgot to flip the hinged antenna over on my Skymap GPS. I was fairly certain I didn't have a 700 knot tailwind. ;)
Forum: Fuel Injection Systems 03-19-2021, 04:56 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
Update

I just wanted to let people know that our order backlog continues to increase, putting back system deliveries to 3-4 weeks now. If you'll be needing your system within the next month, best to get in...
Forum: Traditional Aircraft Engines 03-16-2021, 05:33 AM
Replies: 22
Views: 2,685
Posted By rv6ejguy
I always enjoy your posts Pete. If anyone needs...

I always enjoy your posts Pete. If anyone needs confirmation that LOP and Mogas isn't hard on a Lycoming... here it is.:)
Forum: Alternative Engines 03-11-2021, 12:23 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
Whether we rate power by Kw, HP, or ant pushes is...

Whether we rate power by Kw, HP, or ant pushes is irrelevant, choose your favorite power units, they all quantify RATE of work done.

More torque at a given RPM ALWAYS = more HP. The math is...
Forum: Alternative Engines 03-11-2021, 07:57 AM
Replies: 95
Views: 9,263
Posted By rv6ejguy
Torque doesn't take rpm into account. HP isn't...

Torque doesn't take rpm into account.

HP isn't used by convention, it's used to compare or quantify how much work an engine can perform. You can't do that with torque alone.

HP isn't tangible in...
Forum: Alternative Engines 03-10-2021, 08:56 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
Torque doesn't tell you much which is why all...

Torque doesn't tell you much which is why all aero engines are rated by HP rather than torque. HP is rate of work, torque is force over a distance.

Here's a video I did on the subject:...
Forum: Alternative Engines 03-10-2021, 07:35 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
The 2 stroke should have very high HP compared to...

The 2 stroke should have very high HP compared to a 4 stroke of the same displacement- twice as many power pulses. HP is the quantitative measure of work, not torque.
Forum: Alternative Engines 03-10-2021, 12:13 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
I've looked all over the site and can find no...

I've looked all over the site and can find no information on these engines test running and validating durability and performance running on dynos or in airplanes.

It seems unbelievable to me that...
Forum: Alternative Engines 03-09-2021, 08:59 AM
Replies: 95
Views: 9,263
Posted By rv6ejguy
I was thinking more of Lycoming here but perhaps...

I was thinking more of Lycoming here but perhaps Van's doesn't see enough demand for Jet A engines to be worth it?
Forum: Alternative Engines 03-08-2021, 08:39 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
True, but I don't think everyone will be...

True, but I don't think everyone will be installing one. Aero diesel costs generally far exceed the SI offerings. I'd just like to see some viable/ proven/ different choices out there.
Forum: Alternative Engines 03-08-2021, 08:14 AM
Replies: 95
Views: 9,263
Posted By rv6ejguy
That would be cool if Lycoming would offer the...

That would be cool if Lycoming would offer the DEL-120 (also based on automotive design BTW) for Experimentals, especially working with Van's. Might open a fair market for them and offer some...
Forum: Alternative Engines 03-07-2021, 09:46 AM
Replies: 95
Views: 9,263
Posted By rv6ejguy
My videos featured aircraft from all over the...

My videos featured aircraft from all over the world and several Eggenfellner based conversions which have accumulated several thousand flight hours to date. With some attention to detail, these have...
Forum: Alternative Engines 03-07-2021, 09:24 AM
Replies: 95
Views: 9,263
Posted By rv6ejguy
All it takes to be faster than a Lycoming is more...

All it takes to be faster than a Lycoming is more power and that's easy to come by. Gary Spencer's Long Ez, Russell Sherwood's Glasair, Phillip Johnson's Cozy RG and Shane Getson's RV-7 are all...
Forum: Alternative Engines 03-06-2021, 10:35 PM
Replies: 95
Views: 9,263
Posted By rv6ejguy
Peter had no real world experience in aircraft...

Peter had no real world experience in aircraft design, structures, system design, powerplants, turbocharging or aerodynamics and the results show- the aircraft is double the projected weight from...
Forum: RV Photo/Video URLs 03-05-2021, 06:25 PM
Replies: 15
Views: 1,598
Posted By rv6ejguy
Nice video and appreciate the time it takes to...

Nice video and appreciate the time it takes to edit something like this. Thanks for the snippet of your world. :)
Forum: Fuel Injection Systems 03-05-2021, 11:16 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
No worries, I appreciate your comments and...

No worries, I appreciate your comments and suggestions. We have to prioritize our energies on customer support, work on the new products, production and getting orders out the door. It's a 60 hour...
Forum: Fuel Injection Systems 03-05-2021, 09:48 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Some automotive sequential systems actually...

Some automotive sequential systems actually started spraying on a closed valve under certain low load conditions. Fuel flashes off a hot valve just fine.

In any case, sequential has to spray on a...
Forum: Glass Cockpit 03-03-2021, 09:16 AM
Replies: 134
Views: 29,846
Posted By rv6ejguy
I like what you're doing here Vern. :cool:

I like what you're doing here Vern. :cool:
Forum: Fuel Injection Systems 03-02-2021, 09:37 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
This was just a bench test to shoot the data...

This was just a bench test to shoot the data screen for Dan. We normally recommend 45-50 psi static (pumps running, engine not).
Forum: Fuel Injection Systems 03-01-2021, 09:31 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Code to generate the injector pulse is executed...

Code to generate the injector pulse is executed 120 microseconds after the falling edge of the crank sensor pulse occurs and then the injector windings take around 0.4 to 0.7 milliseconds to saturate...
Forum: Alternative Engines 03-01-2021, 06:04 PM
Replies: 17
Views: 3,397
Posted By rv6ejguy
New Video Up

This features 4 more Sube powered airplanes, one with over 2300 hours on it now and the last one being an RV-7 turbo:

https://youtu.be/EfsaOi07dkk
Forum: Fuel Injection Systems 03-01-2021, 04:37 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Ok, here are couple shots of the data log gauge...

Ok, here are couple shots of the data log gauge screen, first at 2300 rpm and second at 2700 rpm. No O2 sensor hooked up so AFR is invalid here. On most Lycoming maps, we ramp up the rpm fuel values...
Forum: Traditional Aircraft Engines 03-01-2021, 10:33 AM
Replies: 10
Views: 1,058
Posted By rv6ejguy
Vern brings up a good point. If you have EI, rpm...

Vern brings up a good point. If you have EI, rpm and MAP advance could be different and this would skew the EGT numbers with advance generally cooling EGTs.

The observation would depend on how all...
Forum: Fuel Injection Systems 03-01-2021, 08:49 AM
Replies: 12
Views: 2,591
Posted By rv6ejguy
Updates

More FAB mounting plates with new milled reliefs for the aft facing vacuum fittings should be out of anodizing early this week so we can fill waiting orders soon.

I uploaded some new photos supplied...
Forum: Fuel Injection Systems 03-01-2021, 07:40 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Dan, I'll try to find time tonight to look at...

Dan,

I'll try to find time tonight to look at some in-flight logging and grab a couple screenshots showing the injector pulse widths at different MAP/RPMs for you. Not sure I logged much in the...
Forum: Traditional Aircraft Engines 03-01-2021, 05:38 AM
Replies: 10
Views: 1,058
Posted By rv6ejguy
It doesn't get much better than that! It would...

It doesn't get much better than that! It would appear than one lean cylinder isn't creating the roughness. That would seem to leave something with ignition causing it. Strange indeed.
Forum: Fuel Injection Systems 02-28-2021, 02:40 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Yes, your edit is correct. We've been asked many...

Yes, your edit is correct.

We've been asked many dozens of times over the years how injectors are timed to valve opening- short answer, they aren't and it doesn't matter how the injector drive wires...
Forum: Traditional Aircraft Engines 02-28-2021, 10:27 AM
Replies: 10
Views: 1,058
Posted By rv6ejguy
There are several possibilities: Mixture...

There are several possibilities:

Mixture distribution between cylinders may change with rpm due to intake runner length and angle differences, primary exhaust tube length differences and throttle...
Forum: Fuel Injection Systems 02-26-2021, 11:23 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Batch fire doesn't care about where the valve or...

Batch fire doesn't care about where the valve or piston is at all, any more than that is a concern on Bendix style mechanical injection which is continuous flow.

When the valve opens, fuel and air...
Forum: Fuel Injection Systems 02-25-2021, 09:11 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
All the talk about sequential (can't do on a Lyc....

All the talk about sequential (can't do on a Lyc. without a cam sensor) semi-sequential, or batch fire strategies, or processor types matters little here. MoTec uses MULTIPLE cores and very complex...
Forum: Fuel Injection Systems 02-24-2021, 06:40 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Electronic direct injection so far hasn't proven...

Electronic direct injection so far hasn't proven to be as durable as port injection. Quite a number of early issues with HP pumps and injectors.

Another issue is carboning up of the back sides of...
Forum: Fuel Injection Systems 02-23-2021, 05:19 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
I think it's fair to say that EFI isn't the right...

I think it's fair to say that EFI isn't the right choice for everyone and every mission, it's just another choice.

Lots of folks want one EI but prefer to retain a mag and I understand why and...
Forum: Fuel Injection Systems 02-23-2021, 08:59 AM
Replies: 90
Views: 7,466
Posted By rv6ejguy
Agree and very sound advice. Exactly what we...

Agree and very sound advice. Exactly what we recommend. :)
Forum: Fuel Injection Systems 02-22-2021, 05:06 PM
Replies: 90
Views: 7,466
Posted By rv6ejguy
SDS was the first to introduce individual...

SDS was the first to introduce individual cylinder fuel trim in this market back in Jan. 2016. Over 90% of our Lycoming customers opt for dual ECUs these days. In order to have a mix of redundancy...
Forum: Fuel Injection Systems 02-21-2021, 12:22 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
Update

We are machining more FAB mounts now and have added 2 recesses for the vacuum fittings to clear on the newer gold 60mm throttle bodies.

Note that the standard FAB upper plates won't fit with the...
Forum: Canada 02-20-2021, 08:47 AM
Replies: 3
Views: 623
Posted By rv6ejguy
Only 2 GA airports really close by, Springbank to...

Only 2 GA airports really close by, Springbank to the west and Airdrie to the NE. Springbank is much larger and that's where most of us RV guys are.

Hangar beside me is for sale not sure about how...
Forum: Traditional Aircraft Engines 02-11-2021, 12:01 PM
Replies: 220
Views: 45,905
Posted By rv6ejguy
Hopefully this really solves the issue and is...

Hopefully this really solves the issue and is reliable. Nobody will know for sure until 100 cranks make it to 2000 hours though.
Forum: Fuel Injection Systems 02-05-2021, 08:19 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
FAB Mount Kit

Video is up: https://youtu.be/8Ko7bYJsV0Y
Forum: RV-10 02-04-2021, 08:09 AM
Replies: 11
Views: 1,665
Posted By rv6ejguy
Adept

The most well developed alternative is the Adept V6 which has been under development and testing for over 15 years. https://flyadept.co.za/

It doesn't have the track record or support of Lycomings...
Forum: Traditional Aircraft Engines 02-04-2021, 05:33 AM
Replies: 13
Views: 1,382
Posted By rv6ejguy
By limiting timing at high MAP, you can safely...

By limiting timing at high MAP, you can safely run Mogas in any naturally aspirated Lycoming with standard compression ratios. You may have a loss in maximum power at higher manifold pressures but...
Forum: Fuel Injection Systems 02-02-2021, 03:08 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
New FAB Mount Bits

Howard turned these out last week. These will allow the FAB to be mounted solidly on vertical induction SDS EFI setups. Also has provision to mount a throttle cable bracket. Will come as a kit with...
Forum: Fuel Injection Systems 02-02-2021, 08:29 AM
Replies: 12
Views: 2,591
Posted By rv6ejguy
Email Migration, Odd TB Pattern

We'll be migrating our email to a new server with more capacity on Thursday morning. The email address will remain the same and it's supposed to be seamless- that's what they tell me anyway. The old...
Forum: Fuel Injection Systems 01-29-2021, 10:14 AM
Replies: 113
Views: 37,649
Posted By rv6ejguy
AFR offsets

For AFR there is an offset you can adjust. Power up SDS, press right arrow 5 times, find the window showing "SETUP MODE ENTRY"

Press +1, the scroll right arrow until you see "SETUP AFR OFFSET" It...
Forum: Electronic Ignition Systems 01-20-2021, 08:37 AM
Replies: 218
Views: 51,186
Posted By rv6ejguy
Nice data Dan. Thanks for posting.

Nice data Dan. Thanks for posting.
Forum: Alternative Engines 01-18-2021, 05:05 PM
Replies: 34
Views: 5,021
Posted By rv6ejguy
Lycomings routinely burn 91 Mogas. Lots of folks...

Lycomings routinely burn 91 Mogas. Lots of folks doing it here on VAF...
Forum: Fuel Injection Systems 01-17-2021, 01:28 PM
Replies: 12
Views: 2,591
Posted By rv6ejguy
SDS EFI in 2021

Update for the middle of Jan. 2021.

We were inundated with orders in late 2020 and that continued in early January. I've hired another part time worker to try to keep to reasonable delivery...
Forum: Alternative Engines 01-11-2021, 02:50 PM
Replies: 34
Views: 5,021
Posted By rv6ejguy
Works our to around .45 lbs./hp/hr. at 100 hp....

Works our to around .45 lbs./hp/hr. at 100 hp. Nothing impressive for a modern design. A Lycoming can do around .40-.42 with fuel injection running LOP.
Forum: Alternative Engines 01-01-2021, 08:54 AM
Replies: 749
Views: 165,092
Posted By rv6ejguy
Glad the flight went well and you are at your new...

Glad the flight went well and you are at your new home Charlie. You did a good job putting it all together and making it work well. There's a ton of satisfaction in that.:)
Forum: Electronic Ignition Systems 12-31-2020, 04:18 PM
Replies: 51
Views: 3,342
Posted By rv6ejguy
Mike makes a very important point here. With SDS...

Mike makes a very important point here. With SDS CPI, CPI-2 or EM-5 systems, ALWAYS use resistor plugs and suppression wires.

I've seen even OEM auto ECUs scrambled by using non-resistor plugs and...
Forum: Fuel Injection Systems 12-30-2020, 01:05 PM
Replies: 113
Views: 37,649
Posted By rv6ejguy
Happy New Years to everyone and thank you for...

Happy New Years to everyone and thank you for your support in 2020.:)

We are booked up through to the 3rd week in Jan. now so please be patient if you've recently ordered.

Closed on the 31st for...
Forum: Electronic Ignition Systems 12-30-2020, 11:02 AM
Replies: 51
Views: 3,342
Posted By rv6ejguy
Be sure you torque the plug into the adapter...

Be sure you torque the plug into the adapter before torquing the adapter into the head.
Forum: Alternative Engines 12-29-2020, 04:55 PM
Replies: 17
Views: 3,397
Posted By rv6ejguy
My Sube engine didn't require much extra...

My Sube engine didn't require much extra attention for the first 350 hours, just oil changes and a couple plug changes. The gearbox was never off the engine in that time. Kudos to Marcotte for...
Forum: RV-6/6A 12-29-2020, 01:00 PM
Replies: 44
Views: 10,282
Posted By rv6ejguy
Yes, the Shorai dealer I purchased mine from...

Yes, the Shorai dealer I purchased mine from warned me about fully discharging them saying that would usually permanently damage them and I've mentioned this before.

I have a light that stays on on...
Forum: RV Ongoing Maintenance Issues 12-29-2020, 07:10 AM
Replies: 63
Views: 8,717
Posted By rv6ejguy
Thanks for posting the photos Scott. Interesting...

Thanks for posting the photos Scott. Interesting to see what's inside these things.
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