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7 Posts Member #: 11510 Junior Member |
24th Jan, 2017 at 10:54:34am
Good morning
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 2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
24th Jan, 2017 at 11:28:15am
I would use the 40 over the 25 personally, the 25 could cause a restriction, with the 40 the restriction will be the turbo (which is what you want) any "lag" from filling the bigger runners just wont be noticable imho.
turbo 16v k-series 11.9@118.9 :)
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7 Posts Member #: 11510 Junior Member |
25th Jan, 2017 at 02:52:31pm
Got some 1-1/4 looks like 28mm internal |
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2909 Posts Member #: 83 Post Whore Glasgow, Scotland |
26th Jan, 2017 at 11:32:06am
sch10 1-1/4 pipe has an ID around 35mm turbo 16v k-series 11.9@118.9 :)
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 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
26th Jan, 2017 at 03:13:55pm
On 25th Jan, 2017 redherring666 said:
Got some 1-1/4 looks like 28mm internal Then it is not 1 1/4 shedule 10 Google "ASTM pipe schedule" and look at the tables. ASTM is quite confusing unless you are used to it. For everything 12" and below the bore is "NOMINAL", it is the OUTSIDE diameter that is fixed and the wall thickness varies with the schedule number. Especially with the smaller diameters this means the bore size is nowhere near what you might expect it to be. The lower schedule numbers will be bigger than you expect and the higher numbers smaller. To know what you have, you need to measure the outside diameter and the wall thickness, do not think the bore measurement means anything unless you have the tables in front of you. Schrödinger's cat - so which one am I ??? |
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 8604 Posts Member #: 573 Formerly Axel Podland |
26th Jan, 2017 at 03:24:43pm
I use 1" Sch 10. That is 28mm internal.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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7 Posts Member #: 11510 Junior Member |
26th Jan, 2017 at 09:19:07pm
On 26th Jan, 2017 Paul S said:
I use 1" Sch 10. That is 28mm internal. Do not use this if you are just building a log manifold. It will produce poor pulse tuning. What is best for log manifold? |
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Forum Mod 10980 Posts Member #: 17 ***16*** SouthPark, Colorado |
26th Jan, 2017 at 10:52:45pm
On 26th Jan, 2017 redherring666 said:
What is best for log manifold? A bulkhead box and different manifold... 
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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 9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
27th Jan, 2017 at 09:07:22am
If it was me, I'd use what I had, bodge something up that will fit and work.
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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 52 Posts Member #: 11169 AKA: Smegmium Derby, ish |
6th Mar, 2017 at 03:58:17pm
Must say ive never seen a square-section exhaust... "If its not broke, whack a turbo on it"
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9258 Posts Member #: 123 Post Whore Betwix Harrogate and York |
6th Mar, 2017 at 04:54:08pm
a quick google........
Fastest 998 mini in the world? 13.05 1/4 mile 106mph
On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination, talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry. |
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3588 Posts Member #: 655 Post Whore Northern Ireland |
6th Mar, 2017 at 05:28:18pm
On 6th Mar, 2017 Smegmium said:
Must say ive never seen a square-section exhaust... Some 40+ years ago, a friend used to make his from box section. Not too many people DIY'ing turbo's then though. Not too many turbos about either ! lol Cheap and nasty, basic hand tools, and an arc welder. 9.85 @ 145mph
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52 Posts Member #: 11169 AKA: Smegmium Derby, ish |
7th Mar, 2017 at 12:42:15pm
Well! that's different "If its not broke, whack a turbo on it"
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Site Admin  15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
7th Mar, 2017 at 03:01:23pm
Its no worse than many OE log manifolds!
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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 6549 Posts Member #: 1149 #1 Basshunter Fan Force Racing ICT Dept Manager Miglia Turbo Am frum Yokshyer tha noes! |
7th Mar, 2017 at 03:48:03pm
Looks very naaaice. 1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.
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166 Posts Member #: 8952 Advanced Member Athens Greece |
10th Mar, 2017 at 08:09:54pm
Noiceee
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