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 214 Posts Member #: 1574 Senior Member Malta |
9th Mar, 2008 at 12:58:34pm
Hi,
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 514 Posts Member #: 2169 Post Whore Malta (Ex. Scotland) |
9th Mar, 2008 at 01:27:48pm
Can't see the pics mate.
Warning:Stig in Training
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 4633 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
9th Mar, 2008 at 01:32:37pm
The new disc is totally plain, right ? the old one has a spring/poppet valve, right ? If so, fit the plain one. :) |
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 3692 Posts Member #: 1833 Formally mini_majic Auckland, New Zealand |
9th Mar, 2008 at 01:59:31pm
On 9th Mar, 2008 redwing said:
Hi, I've been rebuilding my HIF44 turbo carb today and the rebuild kit contains a different disc to that fitted in my carb. I have never seen a disc like the existing one. Has anyone ever seen one of these before and if so can you explain the difference? Should I keep the old one or fit the new one? 
 
Edited by James_H on 9th Mar, 2008. |
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Site Admin  15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
9th Mar, 2008 at 02:07:48pm
The poppet in the left hand disc is to prevent turbo turbine stall, as the throttle is closed in a standard car the poppet opens to stop compressor stall.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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214 Posts Member #: 1574 Senior Member Malta |
9th Mar, 2008 at 06:45:23pm
Thanks Tom/Dave - I'll fit the new (plain) disc as I've got a Bailey DV to fit. Thanks Minimagic for getting the pix to work!!
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Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
9th Mar, 2008 at 06:52:59pm
Redwing- all you need to do for them to work is delete the inverted commas.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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214 Posts Member #: 1574 Senior Member Malta |
9th Mar, 2008 at 07:13:17pm
Thanks Tom
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806 Posts Member #: 989 Post Whore North Yorkshire |
9th Mar, 2008 at 09:12:36pm
I read that it was fitted to reduce emissions on over run, and was fitted to many NASP HIFs.
On 9th Mar, 2008 Tom Fenton said:
The poppet in the left hand disc is to prevent turbo turbine stall, as the throttle is closed in a standard car the poppet opens to stop compressor stall. |
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Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
9th Mar, 2008 at 09:47:55pm
I've personally never seen one on a NA SU.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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 3756 Posts Member #: 1709 I like granny porn. LONDONSHIRE |
9th Mar, 2008 at 09:59:20pm
i'l 'pop' mine out tomorrow,
On 2nd Oct, 2009 Vegard said:
On 1st Oct, 2009 Jimster said:
I bet my first wank came quicker than your first mini turbo These new modern turbos with their quick spool up time, would make the competition harder. On 15th Aug, 2011 robert said:
phew!!! thank you brett for smashing in my back doors .( not something i imagined writing... EVER) |
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 1913 Posts Member #: 1392 Pointless Post Whore Liverpool, North west |
9th Mar, 2008 at 11:51:39pm
On 9th Mar, 2008 Tom Fenton said:
I've personally never seen one on a NA SU. Pretty sure ive got one somewhere. Back once again like a renegade master |
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
10th Mar, 2008 at 01:09:44am
You'll find them on the 'economy' metro 998 varianets, which also have the external 'bypass hose'...
On 17th Nov, 2014 Tom Fenton said:
Sorry to say My Herpes are no better Ready to feel Ancient ??? This is 26 years old as of 2022 https://youtu.be/YQQokcoOzeY |
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 1060 Posts Member #: 588 Post Whore Delaware, USA |
10th Mar, 2008 at 01:25:05pm
The poppet valve is pretty common over here, especially on Stromberg carbs starting with emissions tests in the late 60's. I think the idea is that on the overrun a little air is leaked through to help burn any left over fuel.
website:- http://www.terryhunt.co.uk
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 6549 Posts Member #: 1149 #1 Basshunter Fan Force Racing ICT Dept Manager Miglia Turbo Am frum Yokshyer tha noes! |
10th Mar, 2008 at 01:45:38pm
Ive seen another type of carb with a similair looking thing to the poppet except it was fixed and hour glass shaped.
1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.
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