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Which means "Evil Twin". Lets see your projects where you change boring into fun or create the fun from scratch.
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 Post subject: Re: ITB's on 550
PostPosted: Sat Sep 19, 2015 5:27 pm 
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I got going on the intake today. John wanted a 3" extension on the runners so I cut 12 spacers, bored them to match the runner ID then added a big weld prep. These are ready to go I think.

Next up is through the manifold on the mill and straighten up the bandsaw cut.


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 Post subject: Re: ITB's on 550
PostPosted: Wed Sep 23, 2015 4:38 am 
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I got the manifold setup but the light on my readout is dead making the numbers very hard to read so I'm going to see if I can replace it......I suspect however that as buried inside as it was its not a part I can just buy.


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 Post subject: Re: ITB's on 550
PostPosted: Wed Sep 23, 2015 8:52 am 
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oooooh, nice


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 Post subject: Re: ITB's on 550
PostPosted: Thu Sep 24, 2015 7:24 pm 
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I milled the bandsaw cuts straight tonight....it was under 1/4" out totalwhich isn't too bad for a pair or bandsaw cuts. Now I need to figure out how to hold everything straight for welding and hopefully get it finished this weekend.


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 Post subject: Re: ITB's on 550
PostPosted: Thu Sep 24, 2015 7:32 pm 
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I guess it would be too easy to weld flanges on the manifold and bolt up aftermarket throttles :P


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 Post subject: Re: ITB's on 550
PostPosted: Fri Sep 25, 2015 7:57 am 
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TheDarkSideOfWill wrote:
I guess it would be too easy to weld flanges on the manifold and bolt up aftermarket throttles :P


While this may look like one of my ideas I'm just the welder. This is John's project and design so clearly I'm not the only one with bad ideas :lol:

Seriously though, motorcyle TBs are just SOOOO cheap and easy to get it's really hard to not want to use them if possible.


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 Post subject: Re: ITB's on 550
PostPosted: Sat Sep 26, 2015 8:15 am 
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Woohoo, I've been out in the Sahara for about two weeks and completely missed these updates! Looks like things are really moving Mark, thanks!

Will, the idea is that I'm going to use 'Busa TB's for a "proof of concept" and engine dyno breakin, and they'll be spigoted in with hose clamps on these extensions that Mark is welding up. Assuming the engine dyno goes OK, I'll then mock it all up in the engine bay, get the measurements trimmed down a bit, lop the excess lengths off the extensions, weld flanges on and mount up some Jenveys.

I already had quite a collection of 'Busa TB's here, so the cost for my proof of concept setup was next to nothing, vs having to buy 12 Jenvey's for about $2500, and not knowing how well they'd work out......


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 Post subject: Re: ITB's on 550
PostPosted: Sat Sep 26, 2015 7:21 pm 
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Who knew there were tiny little florencent lights? The mill readout works again


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 Post subject: Re: ITB's on 550
PostPosted: Sat Sep 26, 2015 7:24 pm 
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first up was to fill in the machining ferrari did on the ends of the runners.


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 Post subject: Re: ITB's on 550
PostPosted: Sat Sep 26, 2015 7:25 pm 
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Then some welding


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