to weber or not to weber...that is the question

[ENTDOC]

weber carbs direct--44 IDF for 319 each ,plus manifold-500; add fuel lines-200, runs about 1900 bucks. A good carb is 450-500, manifold about 400, lines 100 so about 1100. Stack EFI-4400-6000


http://cgi.ebay.com/ebaymotors/44-ID...spagenameZWDVW

[Full Throttle Al]

There is nothing like a set of Webers and here is a nice starter set for your small block:



Alan Sorkey
CSX4083

[scode]

wow, thank you all for the tips. i was not trying to get the efi vs. weber thing going. just want some good true advice on the webers. i love their look, know that they perform like no other but just want to know if it is worth it especially to someone who does not have much experience with them. i do have a lot of car experience from porsches to land rovers to volvos and of course mustangs, just have never tuned webers before. (always took my 911's in for that).
so are the webersdirect a good system? the 44idf's?
thermostat housing manifold or cobra style?
now what other mods do i need? i know i need to re-calibrate the dist right?
what fuel pressure should i run at? do i need a return line?
what should i do about vacuum lines?
any more advice and help would be great, again thanks.
-hawk

[scode]

full throttle al that is a sweet system but i dare ask...how much?

[Full Throttle Al]

Reduced from current cost new today of $10,000 to $7,500. System is new, complete, polished and chromed.

['65 Cobra]

it's webercarbsdirect.com $1995.00

[G.R.]

Originally Posted by scode

so are the webersdirect a good system? the 44idf's?
thermostat housing manifold or cobra style?
now what other mods do i need? i know i need to re-calibrate the dist right?
what fuel pressure should i run at? do i need a return line?
what should i do about vacuum lines?
any more advice and help would be great, again thanks.
-hawk

Things to keep in mind:
do not go nuts on a lumpy cam--not that Webers can't be tuned to one but it really isn't necessary and you will avoid tuning headaches.

48 IDA's like about 3-3.5lbs of fuel pressure. a pressure regulator is a must. You can use either a mechanical or electric fuel pump

A return line is not needed

Nor are vacumm lines needed

Which choice of manifold Thermostat or Cobra is up to you. The Cobra is period correct. Other than Cobraphiles most folks won't notice the difference.

44 IDF's are easier to tune initially and it is said a more streetable setup, the 48's are a race carb but once tuned correctly are oh so sweet---getting them to that point just requires patientence and perserverance

[tfalk]

After just putting a set of 48IDF's on my 331, a couple of other bits of info...

First, plan on running a mechanical advance dizzy. The only way to run a vacuum advance
dizzy is with a lot of elaborate plumbing under the manifold. Also, forget power brakes
for the same reason...

The 48IDF setups I've seen show them with a small bracket to mount the bellcrank outboard
of the carbs. Unfortunately, NOBODY MAKES THE DAMN THING! You pretty much have
to have a bracket custom made to mount the bellcrank - cost me $100 but he saved the
dimensions in case someone wants another one. Also, whomever designed the manifold should
have actually tried it on a real motor... as is, you can't go to WOT because the accelerator pumps
will hit your valve covers. a BFH took care of that problem, but talk about a piss-poor design.

Tuning - I got them close but it still wasn't quite right. My friend came over, he's had IDA's on
his 427 GT-500 for 20 years... in 10 minutes, he had the car idling perfectly. I've only driven the
car once at an auto-x but the throttle response was unbelievable...

Now I have a new problem... Kumho 710 315's on the back ain't big enough

[JCoop]

I was apprehensive at first, but Webers: really the only way to go. Setting up the manifold was a pain; and so was initial tuning, but once you get there, even 90% there, Mama Mia!

[mtpockets]

Here are a couple of pics of my build in progress. I bought at Keith Craft 408w. The motor made 511 hp and 550 torque. Should be ready for test and tune in the next 7-10 days. I can post how the Webers are jetted if needed.

[traindriver]

I just put a couple of pics in my gallery of the plumbing arrangement

Chuck