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Dual height inlet stacks

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greenman1966 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote greenman1966 Quote  Post ReplyReply Direct Link To This Post Topic: Dual height inlet stacks
    Posted: 01 Dec 2020 at 08:20
Has anyone tried making these. https://www.thingiverse.com/thing:3742217

I printed some today  in pla+, they're for 51 mm  throttle bodies. They came out ok, so I've got some petg on order to make a proper set to trial.
Dennis
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426hemi View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 426hemi Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2020 at 08:28
The link doesn’t work but stepicenti has been making dual height stacks for quite a while now.
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redratbike View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote redratbike Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2020 at 08:40
Yes lots of people jumped on the back of stepisenti although people were making theses with standard parts a long time before 

Ensure your plastic is petrol resistant as some spray back make determinate them and could fail and get sucked in the motor 


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Post Options Post Options   Thanks (0) Thanks(0)   Quote redratbike Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2020 at 08:50
Oh and they work too!!!


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Colly View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Colly Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2020 at 11:51
Mate of mine took is stacks out,wheelie machine Big smile
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tfcoulson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tfcoulson Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2020 at 16:28
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camngetit Quote  Post ReplyReply Direct Link To This Post Posted: 09 Dec 2020 at 21:27
Why does it make it all bottom end power 
its twins for me !!!!
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Colly View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Colly Quote  Post ReplyReply Direct Link To This Post Posted: 10 Dec 2020 at 01:13
After seeing my mates bike go when were both out together on the same bikes,im defo taking mine out Big smile
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangry Quote  Post ReplyReply Direct Link To This Post Posted: 10 Dec 2020 at 17:12
Always thought that shorter stacks more top end longer more bottom or mid range.iv got the carbon dual stacks and can say they are very good in both areas Thumbs Up
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greenman1966 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote greenman1966 Quote  Post ReplyReply Direct Link To This Post Posted: 16 Dec 2020 at 19:35
I went for a good test ride last night and now it will pull a higher gear. 6th is good to go from 4000 rpm onwards, sometimes even as low as 3500, whereas before 6th was more of an overdrive gear and I never used it. Now I'm riding a wave of torque in any gear, it doesn't bog or suddenly come on the power, it just pulls. Very linear. Great improvement.
Yes, I've already got a modified collector, mille air boot, standard filter and airbox, Gabro chip.
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