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Search: Posts Made By: MJD
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06-21-2021, 10:51 AM
Replies: 117
Views: 21,124
Posted By MJD

"As I understand it" only owning a recent version...

"As I understand it" only owning a recent version and never having run it on larger than a 5-3:

There are the original Killer Bee then the Estes version. The original had crank web and other mods...
06-21-2021, 04:36 AM
Replies: 686
Views: 58,552
Posted By MJD

Wow, thanks Scott. I'll keep an eye out for the...

Wow, thanks Scott. I'll keep an eye out for the sled dogs.
06-17-2021, 04:41 AM
Replies: 686
Views: 58,552
Posted By MJD

LOL, thanks so much. Since I am the worst...

LOL, thanks so much. Since I am the worst mailer/shipper in the world, as proven last time I made up a bunch of Demon kits, I can empathize.. but do enjoy giving him doo-doo.

Canada has not...
06-09-2021, 10:21 AM
Replies: 10
Views: 1,749
Posted By MJD

And those needles don't do a bad job of metering...

And those needles don't do a bad job of metering pressure flow, in most cases. 049's are definitely not famous for strong suction fuel draw.

I recently decommissioned a Magnum XLS .15 powered...
06-07-2021, 06:13 AM
Replies: 686
Views: 58,552
Posted By MJD

DOH Mike - I typed the message but never hit...

DOH Mike - I typed the message but never hit "submit".. you ought to have something now.
06-06-2021, 03:35 AM
Replies: 686
Views: 58,552
Posted By MJD

Yeah you should have it now.

Yeah you should have it now.
06-04-2021, 11:32 AM
Replies: 686
Views: 58,552
Posted By MJD

Did earlier today. I ran up the OS .91 again...

Did earlier today. I ran up the OS .91 again today, but now with the shortened Rossi header bonded to that 15cc open pipe I ran last. I may have inadvertently shortened the tuning length slightly...
06-04-2021, 06:53 AM
Replies: 10
Views: 1,749
Posted By MJD

I dunno. If you accelerate that mass of fuel...

I dunno. If you accelerate that mass of fuel forward, seems to me it makes no difference whether you have a conventional pickup or that setup - the center of mass of the fuel is in the same place,...
06-03-2021, 08:16 AM
Replies: 686
Views: 58,552
Posted By MJD

I would love those wing tips. Happy to pay you...

I would love those wing tips. Happy to pay you for them. Shawn will owe me of course.. :-). I found the receipt where I sent it LOL.

I spotted a note where I think it was Shawn commenting that he...
05-31-2021, 07:12 AM
Replies: 686
Views: 58,552
Posted By MJD

Since I did not plan to run my OS .77 at full...

Since I did not plan to run my OS .77 at full tilt either (and would thus need to put together a longer pipe package for it anyways), I cut off the integral adapter and mated the pipe to a Rossi 10cc...
05-20-2021, 07:09 AM
Replies: 686
Views: 58,552
Posted By MJD

FYI I compared the carbon pipe to my OS .77 stock...

FYI I compared the carbon pipe to my OS .77 stock pipe - they are remarkably similar in profile,the only difference I could see was that the convergent cone is a bit shorter because it terminates in...
05-11-2021, 11:58 AM
Replies: 686
Views: 58,552
Posted By MJD

Yeah, could be, it was colder on the earlier...

Yeah, could be, it was colder on the earlier runs. Also, saving a few ounces of pipe weight is worth a few rpm.. so obsessing is not likely necessary.
05-10-2021, 11:23 AM
Replies: 686
Views: 58,552
Posted By MJD

I ran up the OS .91 on a slightly smaller pipe,...

I ran up the OS .91 on a slightly smaller pipe, 1.75" OD versus the 2.25" pipe. I think it is a 15cc marine pipe. Tweaked length up and down a bit, but still lost about 200 rpm on the top - was...
04-21-2021, 04:41 AM
Replies: 686
Views: 58,552
Posted By MJD

Thanks Scott. I thought it was you who had...

Thanks Scott. I thought it was you who had written that before, memory is a soluble thing. I'll get hold of Shawn - thx.

My cores are pre-sheeted, the retract bays are in, it has a laminated...
04-20-2021, 09:50 AM
Replies: 686
Views: 58,552
Posted By MJD

LOL, I was toying with mentioning those tips just...

LOL, I was toying with mentioning those tips just for fun! I never did get them, no, but he did have them supposedly ready to ship at one point. I suppose if there was a time to get them it would be...
04-20-2021, 06:03 AM
Replies: 686
Views: 58,552
Posted By MJD

I measured up the pipe, I would say it is a...

I measured up the pipe, I would say it is a .90-.120 muffled marine pipe (came in a goodie box). The inlet is 3/4" ID, max OD is 2.25", and it has a 2" section at full diameter before the converging...
04-19-2021, 04:55 PM
Replies: 686
Views: 58,552
Posted By MJD

Yeah I don't typically run fuel out of the jug in...

Yeah I don't typically run fuel out of the jug in the propped DF engines, I always bring total oil up to 22-23%, and don't need a lot of nitro to go fast enough for _hits and giggles. I use SIG...
04-19-2021, 11:57 AM
Replies: 686
Views: 58,552
Posted By MJD

OK, what am I seeing here and under what...

OK, what am I seeing here and under what conditions? I was advised that keeping the rpm under 20k would do a lot to keep the engine together. Am I wasting my time?

p.s. no wonder your handle is...
04-19-2021, 11:24 AM
Replies: 686
Views: 58,552
Posted By MJD

Yeah, for my OPS .65. Ran like a bear but the...

Yeah, for my OPS .65. Ran like a bear but the first 2-3" got cooked a bit. I'd be happy to send it down for forensics.

I made an executive decision on the engine, decided to use an OS .91 VRDF set...
04-19-2021, 11:16 AM
Replies: 686
Views: 58,552
Posted By MJD

I run the very same prop on my OPS .45 DF...

I run the very same prop on my OPS .45 DF engines. The 85% dia trimmed bench version turns 26.5k static.
04-19-2021, 10:12 AM
Replies: 686
Views: 58,552
Posted By MJD

Speaking of which, I still have not got off my...

Speaking of which, I still have not got off my dead arse and fixed that 10cc open pipe like I said I was going to. I might just have had the pipe length off and ran the header too hot. I think...
04-19-2021, 04:39 AM
Replies: 686
Views: 58,552
Posted By MJD

The West pipe is heavy too. I switched to a MAC's...

The West pipe is heavy too. I switched to a MAC's open pipe on the West .50, and set it up to run about 21 - 21.5k on trimmed APC pylon props. It ran great and it was fast, but it never topped the...
04-08-2021, 05:28 AM
Replies: 120
Views: 23,370
Posted By MJD

.. and to finish my rambling, if the owner wants...

.. and to finish my rambling, if the owner wants the kit built, then perhaps that is ultimately what "should" be done. It is easy to preserve kits for nostalgia until they crumble into dust. But as a...
04-08-2021, 04:59 AM
Replies: 2
Views: 799
Posted By MJD

It is a favorite of mine, it has specific...

It is a favorite of mine, it has specific nostalgic appeal. I currently have a kit, and if I wanted another one I likely would not pay over 40-50 bucks for reference. It's cute and all that, but it...
04-08-2021, 04:53 AM
Replies: 120
Views: 23,370
Posted By MJD

If you are talking about the Sterling Hornet 1/2A...

If you are talking about the Sterling Hornet 1/2A kit - sure they aren't commonplace, but they still would only sell for what someone is willing to pay. It is a '60's 1/2A ukie kit after all. If I...
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