| [ Total Views: 585 | Total Replies: 18 | Thread Id: 26928 ] |
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 Kruizin_76
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 posted on August 6th, 2004 at 10:43 AM |
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empi 48mm question from a newbie
hello again,
i have a 2ltr twin solex carbed bus,
my carbies are worn, in a few months i wanted to upgrade to empi/webbers, i have been told that i should upgrade to a single carb twin barrel 48mm
carb with webber, would this be a good upgrade? i thought that twin carb upgrade would be the only option rather than losing a carb? if i sound stupid
please let me know, this just confused me
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 Bizarre
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| posted on August 6th, 2004 at 11:10 AM |
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Dont go single - let alone a 48mm single
jetting that sucker up would be a pig!
Best option for a 2L bus is a set of twin Weber 40 or 44 IDF's.
Stay away from the cheap Empi kits out of the states - the accessories (linkage, filters etc ) are crap! As well as that they are jetted/vented
nothing like what you will need.
New IDFs are Spanish.
Old IDF's are Italian - i reckon the quality is a bit better.
IF buying new buy from some one who will change the stock carb to somewhere near where you want to be (32mm vents instead of the 28's)
Either that or buy 2nd hand and do it your self
Futue te ipsum!!!
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Kruizin_76
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| posted on August 6th, 2004 at 02:45 PM |
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thats what i thought,
i said that a single would be a bit funny,
this would be a new kit installed, twin 44's maybe?
any guidance would be great
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NigeType3
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| posted on August 6th, 2004 at 03:05 PM |
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Just go to CB peformance website and order your carb kit from them as well as the weber tuning book. This is very informative and will help you learn
how to setup and tune your carbs for your needs. Also Aircooled.net sells kits and for extra dosh will set up your carbs for you. To easy.
Cheers Nige
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Kruizin_76
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| posted on August 11th, 2004 at 11:04 AM |
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just found out its a twin barrel 48mm, this should be the same as 2 single barrell carbies shouldnt it???????
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Bizarre
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| posted on August 11th, 2004 at 12:24 PM |
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http://www.redlineweber.com/html/Tech/Table_of_contents.htm
Have a click around here
A 48IDF is a twin barrel carb
They are NORMALLY installed as a set - ie 2 off. So 1 barrell per cylinder. This would feed a big ass motor.
You CAN run single 40's or 44's on Type 1 motors
NEVER seen a single IDF48 on a Type 1 - let alone a Type 4 motor.
NEVER heard of a Type 4 single carb manifold
Here is a link to aircooled.net selling the IDF 40 or 44 Type 1 kit
http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=FSK0019&c...
No mention of a single 48
Good luck - but i think you are going into unchartered waters
Futue te ipsum!!!
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Kruizin_76
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| posted on August 11th, 2004 at 02:20 PM |
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thanks i have been 100% assured that a single dual barrel 48mm will give the bus a right royal boot up the arse? advantages/disadvantages over a
single or dual 44 or 40? power or economy?
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Bizarre
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| posted on August 11th, 2004 at 03:46 PM |
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IF you can get it going it may well perform well
In a normal worls 48's are over kill for a 2.0L
I have NEVER seen a manifold for a single carb
Advantages???
Webers are better than Solex
Disadvantages???
Never seen it done before
Never seen single IDF's (40,44 or 48) on a Type 4 before
Singles are bitches to work on Type 4 because of lack of manifold heat but some people can get a 32/36 DFEV Progressive Weber to work
Unless jetted right it will drink juice
Jetting will be have to be done yourself because IF you can get a manifold and set this sucker up it will be a one of a kind.
Personally
Save some $$$ and buy duals
People put duals on cause they work
Futue te ipsum!!!
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 barls
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| posted on August 11th, 2004 at 03:51 PM |
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you could go a 2 barrel progressive weber. these have the best of both worlds i.e. economy and performance
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Kruizin_76
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| posted on August 11th, 2004 at 04:07 PM |
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could this be what i am explaining?
a single 48mm twin barrel progressive webber?
excuse my ignorance as i am only new to the game 
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barls
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| posted on August 11th, 2004 at 04:12 PM |
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its a twin barrel carb that has one barrel smaller in diameter than the other so it runs on the smaller for economy but opens the second for power. im
not sure what size it is for the 2L but for the 1600 its a 32/ 36
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Kruizin_76
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| posted on August 17th, 2004 at 11:02 AM |
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thanks guys,
can you get a progressive 44/48 mm webber?
would you get a heap more power out of a twin barrell 48 over dual 44's anyway? thanks again i just dont want this to be a pointless exercise
KEEPING UP WITH TRAFFIC IS OVER RATED!!!!!!!!!!
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barls
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| posted on August 17th, 2004 at 02:38 PM |
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i think the size of a twin progressive for a 2L is like 36/38 or some thing like that.
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mnsKmobi
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| posted on August 19th, 2004 at 11:47 AM |
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| Quote: | Originally
posted by barls
i think the size of a twin progressive for a 2L is like 36/38 or some thing like that.
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No, it's 32/36 which AFAIK is the only progressive weber make.
I haven't tried twin carbs of any sort, but they would have to be better than the progressive! After lots of stuffing around I am just getting to the
point where the progressive is just crap rather than a complete load of crap!
The major problems have been to do with cold weather so this is not an issue if it doesn't get <10C where you are. However, the other problem is
that once the engine is warmed up the carb is sucking in hot air b/c it's away from the vents. This results in a noticeable power loss. I have put on
an air cleaner from an early mazda 323 (mainly to help with cold running) and will be running a piece of pipe from it over to above the battery to
suck in cold air when the hot air flap closes. Unfortunately all kombi projects are on hold b/c I was "spending too much time on it"!! Hopefully
I'll be able to sneak back soon and report how this goes.:thumb:thumb
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barls
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| posted on August 19th, 2004 at 12:24 PM |
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thanks for the correction ive only was one on a 1700 and a 1600 type 1 so i have know idea how they go on a 2L but i have heard rumors that they are
better than the stock twins
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Kruizin_76
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| posted on August 19th, 2004 at 01:33 PM |
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bugger it i will have a go,
i will rip out the old pieces of crap and get a single twin barrel 48mm webber instead, i have heard this is a great conversion, a big boot up the
arse
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70AutoStik
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| posted on August 26th, 2004 at 01:21 AM |
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I think someone has been pulling your leg - the 48IDF was a recent addition to the family, originally to fill the gap whil 48IDA's weren't being
made. No-one has made a manifold that would use it effectively as a single carb (and I don't know of anyone who sells a single carb, unless you've
bought a pair off them previously - the left and right versions are different, of course.)
It would be a silly idea if someone did, as it would give inferior performance to the original dual carbs...
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Kruizin_76
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| posted on August 26th, 2004 at 10:38 AM |
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thanks guys, i appreciate it immensly,
i have followed up again..... EMPI would be the supplier,
i have about 700-900 to spend, i have a fresh rebuilt 2ltr twin carb bus,
my carbies are worn so i thought id seize the day and get new ones..... im now lost 
KEEPING UP WITH TRAFFIC IS OVER RATED!!!!!!!!!!
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Kruizin_76
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| posted on August 30th, 2004 at 10:20 AM |
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just to reboot this post, if you had 700-900 to spend and worn carbies what would you do? i would like some more power if available?
KEEPING UP WITH TRAFFIC IS OVER RATED!!!!!!!!!!
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Bizarre
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| posted on August 30th, 2004 at 10:58 AM |
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Are you going to set them up your self???
Learn how to jet???
IF yes -
Twin 40 or 44 IDF Webers.
IF no -
get your solexes over hauled
Futue te ipsum!!!
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68AutoBug
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| posted on August 30th, 2004 at 01:55 PM |
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I don't know a lot about Webers etc.. but I Do KNOW that You will be much better off using twin carbies...
Ask all the VW shops that handle 2 L Kombi engines...
and what I have heard about EMPI....
Many people are copying EMPI Stuff since EMPI disappeared.
The EMPI brand is now owned by an Australian Company.. so if You buy EMPI from the US... its probably a copy... and could be crap..
Best of Luck
Lee
- [size=4]Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY--- [/size]
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