Author Topic: PVC velocity stacks  (Read 11716 times)

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Offline 750resurrection

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Re: PVC velocity stacks
« Reply #25 on: October 02, 2012, 04:02:09 PM »
lol

Okay well it's good to think what might go wrong so if it does it's not a big surprise.

Can you paint some flames on tubes ?  ;D

haha couldn't resist

Offline davis96

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Re: PVC velocity stacks
« Reply #26 on: October 04, 2012, 11:17:34 AM »
Here they are with finished mounting flanges.

These are the same dimensions as the stock rubber plenum stacks, except for the length, where I added a few millimeters.
'74 CB350F - sold
'71 CB500K

Offline 750resurrection

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Re: PVC velocity stacks
« Reply #27 on: October 04, 2012, 11:29:26 AM »
Oh I don't know about those few extra mm there Davis, have you considered the thrombic response vibrations you might be setting up in the conal surfaces ?
 
  ;D

 They may reverberate in an ever increasing feedback loop and explode off the back, sucking PVC shattered and overheated resin into the then soon to be dead engine...

 ( I hope you get like 20 more HP and achieve the freak scientific breakthrough )

 Good job man. Nice price structure, as in cheap. I really like.

Offline 750resurrection

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Re: PVC velocity stacks
« Reply #28 on: October 04, 2012, 11:33:34 AM »
Yes, and please if you will, explain the attachments - how you did them... what's the deal there, hopefully we can have a nice round of critiques after that so I can screw around some more.  ;D

Offline davis96

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Re: PVC velocity stacks
« Reply #29 on: October 04, 2012, 11:43:10 AM »
Oh I don't know about those few extra mm there Davis, have you considered the thrombic response vibrations you might be setting up in the conal surfaces ?
 
  ;D

 They may reverberate in an ever increasing feedback loop and explode off the back, sucking PVC shattered and overheated resin into the then soon to be dead engine...

 ( I hope you get like 20 more HP and achieve the freak scientific breakthrough )

 Good job man. Nice price structure, as in cheap. I really like.

Of course! I never thought about that possibility... I tried to think of and account for everything that could possibly happen in case it did, which is why I put floaties on them (you know in case I hit a bump, simultaneously popping gas cap and vibrating off a velocity stack, which catches a crosswind and flies forward and drops into my gas tank).

But now that there is a remote possibility something could go wrong I guess its back to the drawing board  ::)
'74 CB350F - sold
'71 CB500K

Offline 750resurrection

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Re: PVC velocity stacks
« Reply #30 on: October 04, 2012, 12:25:59 PM »
So you get stuck in a bit of hot day traffic and the Hondaman (cited) factor kicks in...
Oh man, trouble looming...

That lean cylinder (#1) is hotter so the PVC there starts collapsing first and the top folds down toward the bottom as the rushing air sucks the fold toward the inlet... you detect the strange engine sound and lean down to the left looking which causes your right grip to increase the throttle unexpectedly... the added fuel rush and throttle creates a backfire response from the melting closed clogging stack and a directed supertorch flame shoots through the tiny opening left in the distorted stack !

 "YEEEOOUUCCCCCH!!" a scream is heard as your left leg riding chaps are instantly penetrated and your upper calf will never be the same. Luckily the effort accompanying the painful scream saves your face from crispiness.

 I'm not sure if the cars in front and behind you survive the 700+lb  IED.  :'(

 I cannot go on.
( some, perhaps many, are thankful for that )

LOL

 

Offline NewOldSchool

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Re: PVC velocity stacks
« Reply #31 on: October 04, 2012, 04:46:14 PM »
Looks awesome man! I hope they work great and prove durable for ya too!
Not putting miles on your bike is like not having sex with your Girl Friend so she'll be more desirable to her next Boy Friend.