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Location:
Geelong.Vic.Au
Registered:
August 2002
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High flow downdraught carby for my 4AFC
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Thu, 15 August 2002 09:52
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Yo all,
I would like to replace the standard carby on my 4AFC with a high flow downdraught carby, or a set of webbers. Please don't suggest any engine conversions like everywhere else i've asked  I can't afford an engine conversion yet!, and i'm smart enough to know if the cost of a carby out weighs the worthwhileness(lol not a word). Anyway I also want to get a set of extractors.
Could anybody suggest some brands, models, prices and places where i could pick up high flow carbys, webbers and extractors to suit my engine.
Thanks alot 
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Location:
Melbourne
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Thu, 15 August 2002 23:43
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Dude,
I know how you feel with the 4afc, I have one  .
I wanted to modify mine, but in the end it would not be worth it without throwing serious cash at it, and even then...
One thing to consider is, there isn't a lot of room for an air filter to sit ontop of the carb as it is, so you would need to fabricate one off to the side over the transmission, or move the washer bottle over there, and put a filter where the washer bottle is, and direct cold air to that, there is a hole down under the original snorkel, I have not physically seen to where it leads... You may be able to use it for something.
Test the noisyness of the engine by removing the top of the air filter housing, and screwing the nut back down over the filter, to hold it in place, go for a drive and rev it out. Your ears will buzz hhehe. sounds good at lowish revs.
I'll make some sounds soon and put them up for y'all to laugh at, err listen to. You'll possibly be able to tell me how many problems my 4afc has!
By the way dude. How does your 4AFC handle in the cold mornings? Like a dog?
[Updated on: Fri, 16 August 2002 03:19]
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Fri, 16 August 2002 08:35
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My 4afc is reliable as, in warm or cold mornings, I'm thinking along the lines of 2 twin 40mm sidedraft dellorto's on a 4age/custom intake, and a set of extactors.
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Location:
Melbourne
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Fri, 16 August 2002 15:24
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I believe the 4age intake won't bolt onto the 4AF head mate, So a custom jobby would be needed.
Mine is still reliable, just, but I gave it hell for 2 years when first on my P's and it is starting to show... Auto trans went with a bang and crunch... Got tappet noises, and in the mornings it is a complete dog, accellerates, then bogs down, almost in a state of suspended animation, then continues revving to 3000rpm, where i back off and let the auto change. In 2nd gear it bogs down more... Ahh Well.
Good to see if ya get good results from webers/intake and exhaust mods.
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 03:08
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yer, plus mines a 5spd manual
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Club Member
Location:
sydney
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 05:21
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custom intake manifold with 36/36 IDF Weber should do the trick nicely
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 05:25
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ok thanks,
2 lots of twin webers would look sweet, i know it would cost double. But would it perform better, same, worse?
cheers
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Location:
Melbourne
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 06:47
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Unless you can get twins secondhand, from someone who doesn't know what they're worth an engine swap will work out comparable in price. Twin side draughts go for around 800-1000, add the manifold 200 minimum, which will have to be custom, as i've never seen anything availible for a 4afc. you're up for a grand already, and you haven't begun to tune the things yet, which will cost an arm and a leg, unless you know someone who deals with them all the time. Does the 4afc have a electric fuel pump? if not thats another hundred.
I don't want to put you off your goal, but get quotes on everything and compare the difference in costs, it may only cost a bit more, and if you have to save a month or two longer then save. Cos two months is just two months waiting for cash, regret will stay with you till you sell the car. Or spend more money doing it how you really wanted in the first place.
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Club Member
Location:
sydney
Registered:
May 2002
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 07:50
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$1000+ is a bit out there. IRA11Y, What sort of cond. is your weber in? and what is the name of this wreckers (do you know if they will ship?) Thanks for all your help, on the note about the manifold i was told a 4age one will do, but i will have to re drill holes hear and there.
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Club Member
Location:
sydney
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 07:57
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my weber is in excellent condition, cant remeber the wreckers name exactly...its a european wrecker in north parra
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Location:
Camden
Registered:
July 2002
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 Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 08:10
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hey IRA11Y will these webbers fit a 4AC out of a sprinter?
thanks for any info
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Location:
Melbourne
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 08:11
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hey IRALLY, what are the chances of a weber like yours fitting on the stock intake manifold?
Maybe my suspended animation problem is the carb...
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 08:12
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GRRrRrRrRrRrRrR!!!!
stay away from those webers 
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Location:
Melbourne
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 08:16
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I didn't say HIS weber dude, I said one like it lol.
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Club Member
Location:
sydney
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Sat, 17 August 2002 08:20
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Are you guys reading what is being written???? 
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custom intake manifold with 36/36 IDF Weber should do the trick nicely
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you need a custom manifold to do this sort of conversion 
yes you can make them fit a 4AC if you modify the manifold
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Location:
Geelong.Vic.Au
Registered:
August 2002
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Mon, 19 August 2002 09:11
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Well,
I have made my mind, not going to do anything to it atm 
I'll save save save for a 4agze - ditch blower and replace with a t25-8 turbo.
In the long run that'll be the best and cheapest option
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: High flow downdraught carby for my 4AFC
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Mon, 19 August 2002 09:14
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dude thats gunna cost ya big $$$$
aint that simple as ditching the blower
u then have to fit a 86kw head and lots of other crap
talk to yogi8u about it he will tell ya!
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Location:
Geelong.Vic.Au
Registered:
August 2002
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Re: High flow downdraught carby for my 4AFC
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Mon, 19 August 2002 09:33
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i saw a dato ute somewhere that had done this conversion, and no engine internals need be played with
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: High flow downdraught carby for my 4AFC
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Thu, 22 August 2002 04:05
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Irally.. you seem to be the king of webers... do u know how much a twin-side draught set-up for an 18RGU would be worth (inc 2 x 45DCOE 45mm side-webers, manifold etc?)
cos thats what i have and im wondering what its worth in case i wanna ditch it for efi?
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Club Member
Location:
sydney
Registered:
May 2002
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