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Old 11-11-2020, 09:35 PM   #1
Jack
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Default 50mm readily available side drafts ?

Going to need a massive amount air going into a 16v head
Looking for any recommendations for 50mm side draft carbs that you can get ďcheapĒ


I know harleys have some big carbs but thatís as fas as my knowledge goes

Will make a custom intake etc

Thanks
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Old 11-11-2020, 09:45 PM   #2
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SU HS8 are 2" and used with some pretty big Healey and Jaguar engines. If I recall correctly Mike Jr or Mike Sr in their project 122 thread had aftermarket Weber clones. They may be available in 50mm.
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Old 11-11-2020, 09:53 PM   #3
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The chinese Weber clones are available in 50mm.
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Old 11-11-2020, 10:02 PM   #4
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Quote:
Originally Posted by dl242gt View Post
SU HS8 are 2" and used with some pretty big Healey and Jaguar engines. If I recall correctly Mike Jr or Mike Sr in their project 122 thread had aftermarket Weber clones. They may be available in 50mm.
I thought of those but looking for more modern stuff

Keep the suggestions coming

Found some common mikumis but they’re are 46s I think which still isn’t big enough.
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Old 11-11-2020, 10:02 PM   #5
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Originally Posted by Broke4speed View Post
The chinese Weber clones are available in 50mm.
Yeah but Webers get choked up so itís not really a 50
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Old 11-11-2020, 10:39 PM   #6
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What kind of 16v engine would need more air than a set of quad 50mm DCOEs could provide, even choked down to 46mm? Not trying to be a jerk, genuinely curious .
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Old 11-11-2020, 10:45 PM   #7
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Originally Posted by Broke4speed View Post
What kind of 16v engine would need more air than a set of quad 50mm DCOEs could provide, even choked down to 46mm? Not trying to be a jerk, genuinely curious .
I’ll post specs when it’s all done

Doing port work (especially on intake- sloppy casting and room for better flow) and larger valves on intake and exhaust


There’s got to be something more modern Webers

Last edited by Jack; 11-11-2020 at 10:58 PM..
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Old 11-11-2020, 11:00 PM   #8
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If you're going through all this trouble with a mega-ported head, why not just run EFI? I'm almost certain you could find some 50+mm ITB throttle bodies that won't be as much a restriction as all the internals of a carb.
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Old 11-11-2020, 11:21 PM   #9
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Originally Posted by fatcatbestcat View Post
If you're going through all this trouble with a mega-ported head, why not just run EFI? I'm almost certain you could find some 50+mm ITB throttle bodies that won't be as much a restriction as all the internals of a carb.
Because I really donít want to efi an amazon

50mm TBs are something Iím thinking of for another car
(I have a few 16v and even more Volvos)

Looking at 55 Webers ... ugh

Vergaser 46s are huge money and still a bit too small
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Old 11-12-2020, 01:07 AM   #10
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Go big or go home.

https://classicperformance-parts.com...n-carburetors/

If that's not in the budget you can get FAJS 55 DCOE's cheap.

https://www.alibaba.com/product-deta...346c65cainfm3X
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Old 11-12-2020, 01:14 AM   #11
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Originally Posted by hiperfauto View Post
Go big or go home.

https://classicperformance-parts.com...n-carburetors/

If that's not in the budget you can get FAJS 55 DCOE's cheap.

https://www.alibaba.com/product-deta...346c65cainfm3X
if I start saving now I should be able to buy them in 200 years


whats the deal with solex sidedrafts

volvo used them on their race 16v but they seem to go for cheap?
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Old 11-12-2020, 01:23 AM   #12
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Yes they did. These have a tag that says "VOLVO 16 VALVES " on them but they're only 48's.



Where do find you them cheap? It could be because calibrated parts are hard to find.

Last edited by hiperfauto; 11-12-2020 at 01:38 AM..
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Old 11-12-2020, 01:40 AM   #13
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there's few on ebay


call me and lets talk about those ;)
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Old 11-13-2020, 11:03 AM   #14
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Here in Finland we use those Chinese Fajs carburators in "Folkraces"!
And there are good at least in WOT conditions!
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Old 11-13-2020, 04:50 PM   #15
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Quote:
Originally Posted by Jack View Post

whats the deal with solex sidedrafts
They're similar in function to the Weber DCO/Es, but use many completely different components that don't interchange. I tried to save a few bucks buying a set of DDH 40s, and found out the hard way that replacement parts for the Solexes are hard to come by.

Also I think Solex used zinc bodies, instead of aluminum?
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Old 11-13-2020, 06:41 PM   #16
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If the reason you dont want to go efi is looks, convert a carb to efi? there is some good kits out there for like Su;s and the big ones are usually cheep.
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Old 11-13-2020, 06:49 PM   #17
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Originally Posted by Avtovaz View Post
If the reason you dont want to go efi is looks, convert a carb to efi? there is some good kits out there for like Su;s and the big ones are usually cheep.
EFI is probably going to be cheaper and easier to find than 55-sized DCOE carbs.

You could try a high CFM 4-barrel, but I'm not sure airflow would be your friend with a setup like that.
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Old 11-14-2020, 10:00 AM   #18
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Here is 55mm Fajs, they are good carbs for their price.

https://www.ebay.com/itm/FAJS-55DCOE...AAAOSwPaddEeno
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Old 11-14-2020, 02:18 PM   #19
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Quote:
Originally Posted by Avtovaz View Post
If the reason you dont want to go efi is looks, convert a carb to efi? there is some good kits out there for like Su;s and the big ones are usually cheep.
Not for looks, just something I want to do with a 16v

The Chinese Webers seem nice but arenít that much cheaper than 50/55 Webers

Once the headwork is done Iíll flow the head and find out exactly what I need

Independent throttle efi 16v is going on a different car
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Old 11-17-2020, 02:43 PM   #20
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http://www.forums.turbobricks.com/sh...d.php?t=357576
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