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Today I had intended to make a few sponsons, but I didn't fancy all the jigsawing. Instead I worked on the engines and milled new ignation plates of the QuickDraws so the redcoil could be mounted in teh normal, zenoah position. As written earlier this allows for much more narrow placement of the...

Here's the interior close-up. Also some nice exotic wood that I will shape to act as fender... Sponson tips I will use teak I think..

For this build I chose to first do the reinforcement deck of teh RCbox and rearcompartment: That would allow for easier access to impregnate with epoxy and reinforce all joints from the inside with a bead of thickened epoxy. Also tried to add some mechanical fitting of plates, so that the...

Other challenge is the motor mounts: The provided aluminium ones are 4 mm thick: 2 mm too thick each to fit inside tube. So laminated an L shaped carbon profile ( Simply us clingfoil and 2 alu L profiles, nice weaved carbon for the outsides and all kind of leftover carbon and glass cloth to...

Some more progress to report: fixed the rear shoes to the boat: normally no big deal, but always a bit tricky to get it to harden in teh right place. So drilled 2 mm holes and inserted toothpicks for guidance: appplied thick coat of epoxy and clamped things in place. A tip for claping: as the...

Thank you Mike, I had read your build-up as well. Good stuff of both of you! Luckily I have a friend who made me custom motor mounts in 3 mm stainless so it would fit rails 4 inch apart: 10 mm rubbers and 82 mm wide mount. \He also adjusted the Zenoah style 3 bolt support to the QD 4 bolt...

I did not Don.. actually it is a very good suggestion as it would have saved me a lot of trouble: just spend a whole day in the shop making a set of CF mounts so all fits.. As the tub is ready now I will see how it will drive: if not ok I can always redo teh tub with a belly pan.... And about...

Mike, SG racing builds the engine. They have no website and you need to have an Italian connection in order to be able to get a hold of them: They only speak Italian.. and don't seem to do any form of electornic communication. I did meet with Sassi the last race I had in Italy. The concept is...

Whilst I'm in the completion stages of building the slingshot with a rear exhaust engine, I gave it a good thought on what to do with some QDP engines that I do not need anymore since changing to BZM for the offshore classes. Several years ago I build world's first twin inline rigger, this time...

Several builds have been presented already on the Blazer Slingshot and by no means can I do better. However this one is with a rear exhaust, reed engine and that poses a few small challenges. Firstly th ekit is great and would have everything needed for a normal build. However my choosen engine...

If you want a strong filler: mix epoxy with cotton fluff and chopped strands. The cotton makes it thick: the chopped strands strong. Use short strands 1/8 inch or so.

Yes, he also won in 2016. Usually he laps the competition in a 6 lap race… So the combo can be very powerful.

In Italy ivano Dellanoche runs a rigger comparable to a slingshot with cmb 27. Very very fast and stable. I will try a rear exhaust SG reed engine.. All I would do with slingshot is new hood and as much flotation as you can put in

no, just run it first: I think you are over complicating things. Unless you cool the engine with liquid nitrogen it will not stall. But elaborate a bit on what you have set your needles at, what carb you use and may be some pictures. You're making this a complicated puzzle, that I think just...

Ok so I will work on the cowl that came with the kit and just chop of the side part as the carby will be at the front of boat, not side. Alternatively let me think of some sort of other cowl that will do the nice lines of the boat justice..

If you can put together an IKEA closet you can build a Blazer kit. Just ensure you set up the jig right, have the right wood working tools and correct epoxy to glue all together. Traditional waterbased woodglue, 5 min epoxy and super glue for large area's and permanent binding are taboo in my...

Nice running boat Troy. I actually meant a real example of a slingshot: I've seen many a rigger with rear exhaust, but was just wondering how folks are redoing the carb area of the hood. This motor will fit either 4 or 5 inch as it doesn't have a coil mounted sideways: the primary coil is a...

that screw you should remove, otherwise you can not stop the engine and it will continue running (also moving, unless you have a clutch). You need to adjust the idle with your radio... in such way that you can kill the engine in an emergency or on demand.

This winter's build will be a slingshot I have over a year, but only recently have decided for a rear exhaust engine. Anyone any pictures of such an article for inspiration?

I think issue with your engine is not the coils, but the mixture setting. If it runs FT then there is nothing wrong with them.. What engine do you have and what do you mean with turning the idle screw completely in?