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I have a K&B 3.5 inboard engine for sale. Never run. $110 US, shipped in the lower 48 states. Can ship it next Wednesday (up North fishing till then) PayPal only at: [email protected]

Have you ever wondered exactly how much of an effect changes in air density and humidity have on engine power? Here is a link to a calculator that you might find interesting. It assumes you have 100% power at a reference condition of: 77 degrees F, 29.235" Hg barometric pressure, 0 feet...

This is a new carbon fiber cowl manufactured by Brad Nichols. We ordered it for a JAE 21 GT but never used it. We paid $60. For sale for $50 shipped in the lower 48 of the US. PayPal only for payment. Note that there is a manufacturing defect at the aft end of the cowl. This is the...

I have one of each of these 2 carbs for Nova 21 DD engines for sale. Each is $75 shipped in the lower 48 US states. (The Zoom has been deleted because it has been sold) PayPal only for payment.

This engine is stock with a new piston and sleeve installed last Fall. It was then raced one time last year by my son Greg. This one has a turbo head at 0.008" clearance. The head volume is 0.18 cc. Like the previous one that Matt bought it has a 0.360' bore Albitton carb with an integral...

SOLD This Engine has a new piston and sleeve, with 2 break-in tanks and maybe 2 tanks on the water through it. The outside of the case has been milled at the fins and between the mounting holes to take off a little weight. It has dished piston, head clearance is at 0.009", stock turbo button...

I have some engines in which plugs last a long time and other seemingly identical engines, set up exactly that same, with the same needle setting, same pipe, same prop, that eat glow plugs. They usually look fine, but the wire breaks down inside the plug. It seems like a major contributor to...

We have been running our Bouchie 21 pipes at about 8 to 8-1/4" as measured from the center of the engine to the center of the flat band. I am just curious where others run theirs and how they measure. It seems like measuring to the rear weld at the converging cone instead of to the center of...

We recently attempted to build a lighter JAE 21, but have not been able to test it since the water got hard here. I wanted to build a light boat but still be able to paint it with PPG Concept single stage car paint even though that adds a few ounces of weight. It came out fairly good at 3.40...

I have 5 new cans of Max 2K Clear Glamour catalyzed urethane clear spray paint. $50 for the 5 cans shipped in the US for the lower 48 states. PayPal only please. Watch the video to see how it is used as a clear coat over a cheap Rustoleum base coat. Safety Note: As with all 2 part car...

THIS ENGINE IS SOLD This is a 9 port, dished piston engine with a 28011 turbo plug head button. I ran it for about 20 minutes in break-in mode. It includes a 50040 21 nitro pipe and Nova 180 degree header. The pipe telescopes on the header. Retail of this combination is $474. Price is $300...

I have 11 Castle 10 Amp voltage regulators for sale. These are programable with the Castle Link Programming tool ($19.95 at Tower). You can program the output voltage to be anything from 4.8 to 9.0 volts. Five of these have Futaba female connectors spliced on to the inputs. The other 6 just...

I have a 4 (sold 2 already) Futaba R603FS dual antenna (diversity) receivers for sale as a single lot. In other words I want to sell all 4 to one person. These each have longer 400 mm antennas. Price is $210 shipped for the lot of 4 shipped in the lower 48 US states. PayPal only for payment.

THESE ARE SOLD I have a 7 Futaba R603FS dual antenna (diversity) receivers for sale as a single lot. In other words I want to sell all 7 to one person. These each have a standard length antenna. (I will post separately to sell a lot of 6 of the same receiver with 400mm antennas for a...

Does anyone know where to get a 1/4-28 nitro engine collet for 0.078" wire? Thanks.

We have added a K&B 3.5 only racing class in the Twin Cities. Any hull type is allowed, but it must use a K&B 3.5 engine. In my case I put my 3.5 K&B into an old JAE G2 hull. It weighs 4 lbs. and uses a 45 Zipp strut with ball bearings. So far the best prop has been a 1715-17-45. Today I...

I have always wondered if a wire drive really has an advantage over a flex cable so I did an experiment. I made both a 0.062 wire drive and a 0.150 flex cable for my JAE 12 rigger. This boat has an OS T1202 engine and weighs 2.0 lbs. The strut runs 4 ball bearings with each shaft type and the...

I have a new Dynamite GPS unit for sale. This meter is new and never been used. (It is the second one I bought so the following comments are from the first one). It can update 10 times per second, which means at 70 mph (103 feet per second) you are getting a data point every 10.3 feet. It...

I am looking for 4 new Futaba 400 mm RX antennas. I used to buy them from Futaba but I called and they now refuse to sell them. Anyone know who might be selling them?

The Twin Cites club has decided to run a new fun class. The idea is to have a class for 21 K&B engines only independent of hull type. It is the "K&B 21 Open" class. If boaters show up with any hull (mono, hydro, tunnel, etc.) with a 21 K&B engine (inboard or outboard), we will run the class...