Author Topic: AP Wasp C/L venturi (Read 7463 times)

minnesotamodeler · « **on:** November 09, 2009, 04:40:28 PM »

OK someone tell me again from whom to get custom venturis to replace the sorry carb. on an AP Wasp .061.

I know Jan Holuszko makes one but seems like there was another source also? Can't find the right thread now. I need email addresses, request from a customer. TIA

Larry Renger · « **Reply #1 on:** November 09, 2009, 04:48:21 PM »

The other source is me, and Jan's was so much better, and done more easily with CAD/CAM that I dropped the project like a hot stone. I use Jan's units now.

minnesotamodeler · « **Reply #2 on:** November 09, 2009, 05:18:24 PM »

Huh...OK, I never had an email for Jan. Do you have one?

Bill Adair · « **Reply #3 on:** November 09, 2009, 08:12:38 PM »

Ray,

I'll forward Jan's email address.

Just ran a new Wasp with one of his venturi/spray bar sets last week, and it ran great! Only two runs so far with Sig 10 percent nitro, 25 percent Castor oil, and it's turning an APC 5.7 X 3 at 19.3K RPM.

Don't know how he got the original Wasp needle to work so well, because it has none of the mechanical slop that it did on the Wasp carb.

Bill

minnesotamodeler · « **Reply #4 on:** November 10, 2009, 03:52:25 PM »

That's my experience too Bill, I'm real impressed with it. Jan does good work.

Bill Hodges · « **Reply #5 on:** November 11, 2009, 11:48:12 AM »

Bill:

Could you please forward Jan's email address to me also. I, too, need a venturi and spray bar for a Wasp.

Thanks
Bill Hodges

Bill Adair · « **Reply #6 on:** November 11, 2009, 12:35:43 PM »

Bill,

OK, will send it in a minute.

There are no instructions, but it's easy to put together. The parts you need off the original carb are the mounting screws, carb base o-ring, needle valve, needle detent spring, and the detent spring mounting nut.

I used a drop of blue Locktite on each mounting screw, and snugged them very carefully. The screws will shear off if you torque them as much as US made screws!

Another option is to run a 2 X 56 tap all the way through the venturi mounting holes, and use a 2 X 56 stainless screw from ACE Hardware, run all the way through the carb base. Did this on my first Wasp with the Cox venturi, and saw no change in performance.

Bill

Greg Howie · « **Reply #7 on:** November 25, 2009, 08:23:07 PM »

I would like to know more about this as well . Cost of the parts etc. Any contact info ? Thank you

Bill Adair · « **Reply #8 on:** November 25, 2009, 09:43:10 PM »

Greg,

Email sent.

Bill

Bill Barber · « **Reply #9 on:** November 25, 2009, 09:45:55 PM »

One more for Jan's email , buying a Wasp Friday .
Bill Barber

pat king · « **Reply #10 on:** November 28, 2009, 01:45:24 PM »

Would you please send me the contact information for Jan. I ordered a Wasp yesterday.

Thanks, Pat

david beazley · « **Reply #11 on:** November 29, 2009, 06:45:44 AM »

Can I get Jan's contact info, too?

Larry Renger · « **Reply #12 on:** November 29, 2009, 08:49:49 PM »

As an entertaining aside, I set up an engine with a Jan venturi drilled to .125 and a Norvel Pressure Tap backplate. It runs a storm. We discovered that one of the mounting screws for the venturi was missing, so there was air entering below the spraybar, and it ran like always, never missing a beat! Probably gained rpm! Talk about a reliable system!!!

Mack Davis · « **Reply #13 on:** November 30, 2009, 05:49:43 PM »

I also would like information on venturi's for the AP Wasp 061. Can you send me Jan's email also.

Thanks
Mack

Larry Renger · « **Reply #14 on:** November 30, 2009, 06:05:31 PM »

Another aside to Wasp newbies: READ THE INSTRUCTIONS and follow the break-in proceedure specified. It really matters!!! It is not typical of ABC break-in you are used to, but it works.

pat king · « **Reply #15 on:** December 05, 2009, 05:31:45 PM »

I received my Venturi insert and spraybar from Jan today.

I must say they are very good looking parts with workmanship second to none. These are first class parts. You will not be sorry if buy them.

Pat

david beazley · « **Reply #16 on:** December 05, 2009, 09:29:26 PM »

I have to echo Pat's comments, very nice work, Jan!

pat king · « **Reply #17 on:** December 06, 2009, 09:15:26 PM »

Here is the Wasp with Jan's venturi and spraybar installed. The o-ring, spraybar nut, needle setting spring, and needle are the original parts. Note how the venturi and needle are rotated so that the fuel line clears the muffler and the needle is moved further away from the prop.

Pat

Pinecone · « **Reply #18 on:** December 31, 2009, 04:50:06 PM »

Another one for Jan's contact info.

TIA

Warren Allred · « **Reply #19 on:** December 31, 2009, 11:37:05 PM »

Jan's email for me too please!

Jay · « **Reply #20 on:** March 16, 2013, 02:58:10 PM »

Me too. Email please.

James Strickland · « **Reply #21 on:** March 17, 2013, 12:03:44 AM »

OK guys, sorry I duplicated the question in this thread with my post last night, I just posted my request before I looked to see if anyone had already been looking for AP .061 venturi's, I've read this entire post now and seen many people request Jan's contact info to buy the venturi's, but I've still never received his contact info, would someone PLEASE post it in this thread or message it to me directly. Thanks so much in advance.

James

pat king · « **Reply #22 on:** March 17, 2013, 06:09:30 AM »

Here is the address I have for him: jan572 at comcast dot net

Pat

david beazley · « **Reply #23 on:** March 17, 2013, 07:34:42 AM »

Pat beat me to it! It's the same address I have.

James Strickland · « **Reply #24 on:** March 17, 2013, 08:18:27 PM »

Hey, thanks very much Pat & David, I hope they work as good as they look in Pat's pics earlier in the thread. Thanks again guys.

Larry Renger · « **Reply #25 on:** March 18, 2013, 09:02:38 AM »

As Yoda would say: "Work well, they do".

James Strickland · « **Reply #26 on:** March 23, 2013, 12:17:03 AM »

Hi all,
I've E-mailed Jan about these venturi's, but I haven't seen anything back from him, likely because I don't know him and have never E-mailed him before, my e-mails are probably going to his "spam" folder & he's not seeing it. Would someone on here that knows Jan Please e-mail him and ask him to e-mail me at kplaneman@aol.com with all the purchasing/ shipping info on these venturi's, it would be GREATLY appreciated. Thanks----James

Rick Bollinger · « **Reply #27 on:** March 27, 2013, 06:59:05 PM »

I need 2 of these set-ups myself if available. New or used.

James Strickland · « **Reply #28 on:** March 31, 2013, 12:45:56 AM »

Well Jan finally was able to get back to me, He doesn't have any venturi's and is not planning on making any in the near future, anyone have any suggestions, or did I just end up with two engines that I won't be able to use?

James

Andrew Tinsley · « **Reply #29 on:** March 31, 2013, 06:07:00 AM »

Oh Dear,
I was planning on getting another couple from Jan. The ones I have are really excellent, looks as if I shall have to swop venturis between planes. I wonder if Jan has a minimum quantity to make it worthwhile running off another batch? Maybe we could start a wants list for the venturis to see how many we would buy collectively? I am in for 4 units, how about other people?

Regards,

Andrew.

kenneth cook · « **Reply #30 on:** March 31, 2013, 06:19:59 AM »

Here is my setup I used. I was able to use Kirn Kraft needles for bladder on combat and a stock Cox spraybar and needles for running on draw. If you can find a local machinist or someone with access to a lathe this is an easy adapter to make. A Cox venturi is a 1/4"-32 just like glow plugs and that's the threads in the center. Dubro wheel collar set screws were used to retain the adapater. I just ran a tap through the case for the set screws.

bob whitney · « **Reply #31 on:** March 31, 2013, 05:23:36 PM »

i can make the inserts that you can screw the TD venture into if made out of delron they can be made a tight fit so the allens dont do all the work

kenneth cook · « **Reply #32 on:** March 31, 2013, 06:08:30 PM »

Although my aluminum adapter was a very snug fit, I'm puzzled as to why you think the allen screws are doing a lot of work. I'm using the stock o-ring under my adapter and I spotted 2 dimples in the adapter for the set screws to lock into. I spotted them slightly high so that under thumb pressure it compresses the o-ring slightly and I snugged in the allen screws with a bit of Loc-tite on them. It's not as if I'm stressing the case with pressure on it, it's just locking the adapter in place. Ken

bob whitney · « **Reply #33 on:** March 31, 2013, 06:45:23 PM »

it sounds like you are doing it right ,it is just a little easier to get a snug fit with the delron because it will give a bit when u push it in

Paul Wescott · « **Reply #34 on:** April 03, 2013, 09:08:57 AM »

Doug Galbreath graciously converted two of my AP Wasp 061's (yes, purchased through the hated auction site). Doug does truly amazing work. Doug has the added benefit of making and stocking 1/2A NVAs. I cleaned and shipped the two motors stock, then Doug fabricated the venturis and installed them with two of his new NVAs. The results are beautiful.

Attached (hopefully) is a picture of the two motors.

Paul W.

Andrew Tinsley · « **Reply #35 on:** April 04, 2013, 05:22:09 AM »

Hello Ken,
I like your Cox 0.49 venturi and spray bar conversion, it has all the right looking stuff. I would be tempted to use the TT assembly with the Kirncraft type spray bar as everything is easily available. Is there any problem that you can see with running such a set up with an ordinary stunt tank?

Regards,

Andrew,

kenneth cook · « **Reply #36 on:** April 04, 2013, 02:35:43 PM »

My original intent was to do just that. The engine however wore out before I was able to try it. The engine had no more than 50 flights on it. The play in the crank was present when new, but after a few runs it wiped out the bushing. This was the same experience that others had on some of the other forums. At the time Global parts had the case but the website wasn't functioning. I had a new bushing installed in the case, but the plug blowing problems were just overwhelming. So, the engine was placed on the backburner and it still resides there today. I surely would like to hear some positive results from those who decide to try my mod. Ken

Larry Renger · « **Reply #37 on:** April 04, 2013, 02:41:50 PM »

I have one engine with the Cox needle setup, and it works just fine. I have so far worn out four crankcases. From here on out, the fuel will have 25% oil!

Larry Renger · « **Reply #38 on:** December 14, 2014, 04:38:01 PM »

I have two AP Wasps with Holusko venturis for sale. Both have polished cranks fitted to new cases. Also Merlin plug setups. PM me if you are interested.