Dual height inlet stacks

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   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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greenman1966 Members Profile Send Private Message Find Members Posts Add to Buddy List Moto2 racer Joined: 06 Jul 2016 Location: New Zealand Status: Offline Points: 146	Post Options Post Reply Quote greenman1966 Report Post Thanks(0) Quote Reply 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

426hemi Members Profile Send Private Message Find Members Posts Add to Buddy List Premium Member owner of the big bore! Joined: 30 Mar 2012 Location: cannock Status: Offline Points: 5795	Post Options Post Reply Quote 426hemi Report Post Thanks(0) Quote Reply 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.

redratbike Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16331	Post Options Post Reply Quote redratbike Report Post Thanks(0) Quote Reply 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


redratbike Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group The Collector Messiah Joined: 07 May 2008 Status: Offline Points: 16331	Post Options Post Reply Quote redratbike Report Post Thanks(0) Quote Reply Posted: 01 Dec 2020 at 08:50
	Oh and they work too!!!


Colly Members Profile Send Private Message Find Members Posts Add to Buddy List Moto3 racer Joined: 26 Nov 2017 Location: St Helens Status: Offline Points: 55	Post Options Post Reply Quote Colly Report Post Thanks(0) Quote Reply Posted: 01 Dec 2020 at 11:51
	Mate of mine took is stacks out,wheelie machine

tfcoulson Members Profile Send Private Message Find Members Posts Add to Buddy List Moto2 racer Joined: 23 Oct 2016 Location: Ireland Status: Offline Points: 165	Post Options Post Reply Quote tfcoulson Report Post Thanks(0) Quote Reply Posted: 01 Dec 2020 at 16:28
	https://www.thingiverse.com/thing:3742217

camngetit Members Profile Send Private Message Find Members Posts Add to Buddy List Premium Member Joined: 28 May 2009 Location: nottingham uk Status: Offline Points: 1447	Post Options Post Reply Quote camngetit Report Post Thanks(0) Quote Reply Posted: 09 Dec 2020 at 21:27
	Why does it make it all bottom end power
	its twins for me !!!! www.apriliaperformance.co.uk www.apriliaforum.co.uk www.apriliaownersclub.co.uk

Colly Members Profile Send Private Message Find Members Posts Add to Buddy List Moto3 racer Joined: 26 Nov 2017 Location: St Helens Status: Offline Points: 55	Post Options Post Reply Quote Colly Report Post Thanks(0) Quote Reply 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

Hangry Members Profile Send Private Message Find Members Posts Add to Buddy List Moto GP Alien Joined: 22 Feb 2018 Location: Cornwall Status: Offline Points: 670	Post Options Post Reply Quote Hangry Report Post Thanks(0) Quote Reply 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

greenman1966 Members Profile Send Private Message Find Members Posts Add to Buddy List Moto2 racer Joined: 06 Jul 2016 Location: New Zealand Status: Offline Points: 146	Post Options Post Reply Quote greenman1966 Report Post Thanks(0) Quote Reply 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.