134 replies to this topic

[Mini Manannán]

Hallelujah!  Was it a PITA to fit Alex?  Looks the monkey's apart from being a bit rough.

[Alex_B]

Bolted straight on and the hole Dia was perfect for the bolts to cut a small thread in there, I think it would be strong enough to run at least for a short amount of time, (would imagine as the engine gets hot the tension on the bolts would reduce and it will come off) 

[mingy]

Looks good mate, could the ram pipe be secured onto the solid backplate of a filter, say an ITG suitable for Hif 44 and then use the normal fixing points of the filter backplate to secure both to the carb ?

[Alex_B]

Now that sounds like a good solution! I would have to see what they look like but theoretically that could be designed in 

[GraemeC]

The filter backplates normally secure by the same holes, if you use a ram pipe the backplate gets sandwiched between it and the carb.

[Mini Manannán]

This is the filter sock I'm using on my HIF44 right now: http://www.demon-tweeks.co.uk/motorsport/ram-pipes-filter-socks/pipercross-ram-pipe-single-socks  I fairly certain it'll squeeze around this concept bellmouth.  

[Mini Manannán]

I'd always assumed they were 44mm on the intake, how wrong I was!  46.4mm is the magic number.  After a lot of midnight oil, measuring, consultation and reading of literature we've come to the conclusion that a little more trumpet might be the way forward in the real world rather than on a  flow bench and so version 35 has been drawn.    It's been drawn with a full radius from base to lip:

 

 

 

The full-circle lip is hollow apart from the support structures, this is to keep the weight down as far as poss.

   My mate's brother has broken a bit of his printer but fortunately he'd already printed the replacement part in anticipation , so it's just a matter of taking the whole thing apart to fix it.  Hopefully it'll be printed this week

 

Alex, if you want the .stl drop me a PM.

[Spider]

You guys are amazing!     I can just - and I really do mean just - do 2D CAD stuff. I did click on the 3D option years ago but that really did my head in, though I did notice that you're using alternative softwear to that.

 

Good work and well done.

[Mini Manannán]

It's not straightforward Chris, but I've only been seriously playing with the Sketchup program since xmas, the chaps on the Sketchucation forum have been very helpful and patient.  I've never done any CAD stuff so you're ahead of me there

[Mini Manannán]

Ding!  After mucho grief with the printer the first 3D print has landed in Colby  

 

 

 

Areas for improvement have been noted, on to version 37.

[Alex_B]

Version 37? Crikey, but that looks good 

[Spider]

Awesome work and well done. Suitably impressed is the Spider!

 

Mate, if you need a holiday, I could put you to work here for a few months.

[Alex_B]

Now all you need is a 3d modelled carb to showcase your velocity stack!
In true blue peter style, here's one I made earlier. 

[mingy]

Version 37? Crikey, but that looks good 

Well, it took 40 attempts for WD40 to get where it is today, the chap who invented WD40 has just sold the rights to another company and he is now producing something similar called " Pocket Rocket ",it,s cheaper than WD40 and we use it at work and it seems ok.

[Mini Manannán]

Awesome work and well done. Suitably impressed is the Spider!

 

Mate, if you need a holiday, I could put you to work here for a few months.

 

Sounds interesting Chris!  A few months eh? 

Now all you need is a 3d modelled carb to showcase your velocity stack!
In true blue peter style, here's one I made earlier. 

 

That is stylish Alex, verrry nice.  Version 36 is OK but the printer needs a tiny bit of calibration, the throat is 45.6 instead of the 46.4mm I was aiming for but my mate's bro reckons he can dial that in.  Version 37 with more flare and the weak areas beefed up will be along soon...