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 stifler001
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| posted on October 29th, 2011 at 09:21 PM |
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Webers
Hi guys,
a mate of mine gave me a set of twin 40mm IDF webers and I was wondering if they would work ok on a 1640 TP with a standard cam???
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 Bizarre
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| posted on October 29th, 2011 at 10:32 PM |
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yes - 40's are good for a 1600
BUT - that said, it all depends on the jetting - and that can be changed.
I reckon they need 32 vents, 135 mains and 50 idles
Others may tell you smaller.
Have a look and tell us what is in there
Futue te ipsum!!!
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vwo60
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| posted on October 30th, 2011 at 10:22 AM |
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I would run 28MM vents other wise you will take away the driveability of the engine, will not pull from down low.
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matberry
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| posted on October 30th, 2011 at 11:48 AM |
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I would go with the carbs too. I agree 28 vents for a otherwise stock 1600. Would really benifit from a good exhaust and then headwork.
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stifler001
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| posted on October 30th, 2011 at 04:06 PM |
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thanks guys, I will check the jets and go from there. One other question, do I need to take out the engine to put the weber manifolds on?
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matberry
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| posted on October 30th, 2011 at 04:36 PM |
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| Quote: | Originally
posted by stifler001
thanks guys, I will check the jets and go from there. One other question, do I need to take out the engine to put the weber manifolds on?
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Nope 
You actually need the carbs off to fit or remove the engine.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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Bizarre
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| posted on October 30th, 2011 at 05:12 PM |
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mmm.............. putting the manifolds on is easy
getting the 34Pict manifold off is the hard part
Shoot me...................... but you also need to think about Weber Windows as well
I happily cut a hole in the side to get to the mixtures and idles.
That is better done with the motor out
The other problem is if you have "short" studs.
I had some manifold studs that were VERY short and I needed to change them
That is better done with the motor out
Futue te ipsum!!!
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stifler001
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| posted on October 30th, 2011 at 05:39 PM |
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thanks again!
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vwo60
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| posted on October 30th, 2011 at 06:44 PM |
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I have 44IDF's in a 36 HP engine bay and have no problems tuning them without cutting holes in my car.
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Sides
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| posted on October 31st, 2011 at 12:02 AM |
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| Quote: | Originally
posted by vwo60
I have 44IDF's in a 36 HP engine bay and have no problems tuning them without cutting holes in my car.
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Really ???
Even with the windows cut in had to be a contortionist to tune my 44 IDF's... I used to get the back of the car up on stands to be able to get me arm
up under the guard easily and reach in. Ditto for when changing plugs.
Am thinkin you must have really tiny hands or somethin....
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HappyDaze
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| posted on October 31st, 2011 at 07:09 AM |
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| Quote: | Originally
posted by vwo60
I have 44IDF's in a 36 HP engine bay and have no problems tuning them without cutting holes in my car.
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Ahaaa!......You have a Kombi, or a Karmann Ghia. [Or are you a gynecologist?].
I'd rather wear a Beetle out by racing it than by polishing it!
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matberry
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| posted on October 31st, 2011 at 08:22 AM |
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You guy's must be a bunch of shiela's....I tune them regularly without holes cut. Mind you it makes for some interesting language.
Certainly easier with access holes, especially for #'s 1 & 3 sparkplug change.
Fit IDA's, heaps easier for access....lol
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Sides
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| posted on October 31st, 2011 at 09:02 AM |
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Hmmm.... must be a thing with different manifolds or something... with IDF's in my '70 engine bay, no way in hell would you get the idle jets out
without the access holes.
But oh well - EFI now, so it's just sit in the driver's seat and play with the laptop for me !!!
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Join a car club - get car peeps
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vwo60
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| posted on October 31st, 2011 at 10:28 AM |
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I have had a 70 model beetle with 44 IDF'S with no body butchery along with the worst example with my 60 model with 44 IDF'S again and have had no
problems tuning them , and my hands are big.
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stifler001
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| posted on November 8th, 2011 at 09:18 PM |
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So I checked out the jets on the weekend, it has 140 mains, 45 idle and 32 vents. I should hopefully get the manifolds and linkages on the weekend,
what is the likelyhood that it will run ok with the current jets?
Cheers
Brad
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matberry
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| posted on November 8th, 2011 at 09:22 PM |
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It'll run, but I'd expect larger idles will be needed.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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Bizarre
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| posted on November 9th, 2011 at 05:42 AM |
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you certain they are 40's and not 36's??
Futue te ipsum!!!
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stifler001
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| posted on November 9th, 2011 at 06:17 AM |
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Yeah, they are 40's I checked a few times, I will give it a go then change them later. just trying to get it on the road at the moment.
Do you know anywhere in Sydney where I can buy the jets / Vents?
Thanks for your help
Brad
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matberry
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| posted on November 9th, 2011 at 06:46 AM |
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I have a good selection, most are $8 each. You'll normally pay alot more than that. Feel free to PM me once you know what you need.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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vassy66T1
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| posted on November 9th, 2011 at 08:21 AM |
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Get some 50 and 55 idles off Matt while you are at it.
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Bizarre
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| posted on November 9th, 2011 at 09:19 AM |
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I use to buy my jets from Carbuterror Service Company on Parramatta Road Burwood.
Just near the bus terminus
Futue te ipsum!!!
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stifler001
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| posted on November 9th, 2011 at 12:43 PM |
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Thanks guys, Matt I will come back to you next week if the manifolds and linkages turn up this weekend.
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matberry
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| posted on November 9th, 2011 at 08:35 PM |
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Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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stifler001
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| posted on November 19th, 2011 at 02:46 PM |
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Hi again,
So i finally received the empi inlet manifolds and went to fit them this weekend and had some issues.
firstly the studs were too short and secondly the manifolds need a fair bit pushing to get them past the tin wear, so I decided to pull the engine out
to fit them.
removed the engine replaced the studs with longer ones then fitted the manifolds, all going well so I thought I better check the webers mounted ok
before I put the engine back in. To my surprise the webers hit the fan shroud, I am using 40mm IDF's and I thought they should go straight on. has
anyone had any issues in the past? do i need a different fan shoud?
One thing I need to point out is the the webers are quite old (manual chokes) and were originally off a mates Gemini, I would have thought that 40mm
IDF's are all the same? any thoughts?
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Bizarre
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| posted on November 19th, 2011 at 07:25 PM |
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you need to put block off plates where the chokes are
http://www.cbperformance.com/catalog.asp?ProductID=518
Futue te ipsum!!!
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matberry
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| posted on November 20th, 2011 at 01:13 AM |
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And it'll still be tight, sometimes needing panel beating. Best with a 36hp style fan housing, but then the replacement ones still often need work
for German compatibility
Not all manifolds are created equal.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
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1916baja
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| posted on November 20th, 2011 at 06:53 AM |
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I actually cut the both sides off my fan shroud to get my 40 idfs on my baja, we then patched it up and painted it. looked like balls though.
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stifler001
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| posted on November 20th, 2011 at 07:36 AM |
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ok thanks guys, I have had a look at some photos online of engine bays with the webers and most of them seem to have a seamless fan shroud, mine has a
seam which sticks out, maybe its an old one. I will buy a new dog house one this week and see how I go.
If I block off the chokes does the engine still start ok?
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matberry
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| posted on November 20th, 2011 at 08:42 AM |
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Yep, just remove the assembly and preferebly cover the area with a blanking plate.
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colin
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| posted on November 20th, 2011 at 06:44 PM |
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| Quote: | Originally
posted by stifler001
So I checked out the jets on the weekend, it has 140 mains, 45 idle and 32 vents. I should hopefully get the manifolds and linkages on the weekend,
what is the likelyhood that it will run ok with the current jets?
Cheers
Brad
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Agree with matt, 50idles and maybe 135 mains with a 28mm vent, then with a little head work and exhaust 32mm vents and 140 mains.
Cheers Col
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