I'm gathering parts right now. I've already bought:

2 newly rebuilt and synced dellortos
intakes
two new (square) air filters.

I now need linkage, and am thinking about this:
http://cbperformance.com/catalog.asp?ProductID=536

and since I'd like square filters, I think I want this model:
3134 Porsche Style Linkage - fits DRLA & IDF Carbs on upright engines w/large air cleaners

Am I forgetting anything else I need to get these guys going? I currently have a single weber, so I'm hoping to reuse my fuel pump (with a T in it).

What kind of fuel pump do you have?

If ya don't know the name.... Do you have a pic of it?

AS far as linkages are concerned.

The best is probably a bell crank linkage as opposed to a CB style Hex bar linkage.

They are MUCH more expensive. And much more accurate. And they don't need much adjustment from wear.

If you buy the CB style Hex bar setup... Coat the inside of the hex bar joints with wheel bearing grease. This will keep the linkage from wearing so fast and help keep the carbs in sync.

I found a belll crank setup at Jake's site.
Bell Crank

Someone here also knows another place to buy a similar setup...

Thats my .0002 worth.

Regards,

C

Hey Terry - I run Dellortos and found out that the right fuel pump is really critical. If your running a "Facet" dump it quick and use either the Carter (my preference) or the CB Performance. You won't need a high PSI pump (3 to 4 lbs is fine) but what you want is a high volume pump (50 - 60 GPH). That is why I like the Carter. I don't need a pressure regulator and my carbs seem to never starve!

You will also need a Uni-Syn tool to set up the carb's for the correct air flow.
Your local parts store should be able to get you one, Edelbrock Corp. makes one
thats what I use.

The Sync of choice

Get em at Evilbay or at any ACVW parts store.

This is the only one I have used that is worth buying. The rest is junk. IMnonHO.

C

OK, i've picked up the sync tool. Does anyone have a link to the pump that I should pickup?

If you haven't already, get Bob Tomlinson's Dellorto Tech Book. CB has them.

Also, before you start make absolutely sure of the following:

-car is properly timed
-valves are properly set
-beware of exhaust and intake leaks (they will haunt you)

I went through this same process early last year. The biggest improvement in my carb tuning came from upgrading my ignition. I dump my 050 dizzy and went with a 009 stock dizzy and upgraded it with a Crane Cam Fireball system.

After installing the Dells, I had alot of off idle sluggishness. The stock 009 with the vac advance connected solved everything. As far as stock dizzies go, I was told by long time Porsche mechanic Wes Heldreth that the best stock dizzy for carbs was the one the came on the 74 1.8L L-jet car. Took awhile but I eventually found one. I am sure that it is not as good as the more modern Mallory's and such, but it was alot cheaper.

good luck.

JR

Here is one of the many that work well with Dells or webers

C

what they said

BTW - how are the carbs synced without being on a motor?

Yeah... I forgot to ask that....

They might be flow matched.... If Art Thraen did the work.

Yet I B doubting Art did these....

C

AA. Phone is on now...!!!!!! I B Charged up.

I bought the cb performance Linkage and found that the arms that go from the hex bar linkage to thr carbs are to long and hit the top of the engine lid, The empi manifolds and linkage fit perfectly.

no way - were the arms pointing toward the front of teh car????

and which pivot position were you using?

i find that way hard to believe, and am 99 percent sure you installed them wrong

Bought my carbs from this guy:
http://stores.ebay.com/ALFA1750S-CARBURETORS-PARTS-STORE

He claimed that all four barrels were synced before shipping.

synced on HIS motor..... not yours....

you get to do it on your motor.... too

Hey JR,
What is the part number of the Fireball System that you used? There are several listed on their site.

for the price of an 009 or an 050 + a pertronix or a crane...

you could almost buy a MALLORY... which btw is the shizzle... and be MILES ahead...

I got the XR3000-0226 ignition sytems and the 730-0091 coil.

since you live by magic mountain......

you need some help?

C

I paid ~$170 for the Crane Cam stuff at Summit Racing. And Britt did made me deal for the 009.


But I hear the Mallory rocks.

Thanks for the offer. My biggest battle right now is getting my hydraulic lifters dialed in (not my choice the PO installed, see my thread this PM). I've also heard a rumor that Joe Sharp may have another team NARP BBQ around the new year. If he does that I'm brining my teener and the tri-tip.

Aaron and i were just talking about you on da`phone...

If ya need some help..

we are idiots and don't know much...

But we will help if we can schedule it right.

PM me or Aaron.......

C

You're also going to need to move somewhere with some very patient neighbors or do like I used to do and drive over to a friend's house to sync the carbs every so often. I'd drive over, have dinner and then we'd get around to looking at the car. Well, 3000-3500 RPMs at 10:30PM at night is not the best way to win friends.

That's why I always drove over to my friend's house.

I run my linkage on the backside away from the firewall closer to the rear. I like the way the throttle cable works in this position. If you have the CB Manifolds they are really tall and create problems with clearance when you set your carbs up the way I have mine. The short manifolds from empi work perfectly with plenty of clearance, And the empi throttle arms are shorter than the cb performance ones. Any of you ever check out pierce manifolds? I buy alot of my weber stuff from them, And they have some great exploded diagrams of all the different weber carbs.

By the way... How stock is this engine?

If it's built. We need to know all the specs BEFORE we come up......

Thats supposes you need me and Aaron...

Cause Aaron and I have screwed up more Weber / Dell combos that you can imagine.....

That makes the perfect choice..... I think... Errr, wellll......

whatever.... If ya need us... we will help U... And it might even work after we are done with it... If you are very lucky.........

And the short manifolds DO work well for throttle response. Even that Kinda depends on the combo..... (intake valve closer to throttle blades)

C

ahh... thats why. the cb is DESIGNED to run the other way around... all you need to do is fab a simple throttle cable bracket. pics in myblog... and pics of triad setup at www.triadwestperformance.com

tall manifolds gain you some torque.....

ill even fab you a simple throttle cable bracket if you promise to use the nicer cb setup

pierce is kinda expensive. i use the alfaguy on ebay or cb performance for my weber needs.

i got weber books for diagrams.

got the weberbooks/syncrometer/and a few jets packed

just say the word.... LOL

clayton and i are conjoined twins... just only he is passing the kidney stone

Sad....but true

C

I don't mean to hijack, but can I be invited to that party? I want to play with Webers too!!!

Hijack? It's my thread, and I'm not even invited!

The way I read it, you are the GUEST OF HONOR!!!!

and we are all going to virginia!

How the hell did Vigina get in this thread... AA... we gotta talk....

C

Terry-

I've been running Dells on my car for around 20 years--and I'm here in VA (near Williamsburg). I have some articles on how to set up the carbs--IIRC, they were pretty useful at the time. I could make copies and send them if you're interested. I think I also have some specs on what venturis, jets, and e-tubes came on which carbs--it may give you a good place to work from.

I also added a picture of the throttle cable set-up on my car. I'm using the CB hex-bar linkage and manifolds that came with the kit. No clearance issues, even with the rain tray in place.

Is Centreville VA near Dulles airport? I need to make a run up there on PM 20 DEC . . . but I won't be in the 914.

PM me if you have any questions.

Best,

Steve A-

I seem to have hit a couple of snags while installing my new dells this weekend:

My linkage bar appears to be too long, and they don't make one short enought (the one I have is 19", and I need one 16":




My second problem is that my carb rod linkage is alittle off. I believe that I have a heim joint on the cb linkage, but my carb doesn't appear compatible with that. Could someone shed some light on what I need to buy / know? It looks like I should be able to unscrew the bottom heim joint, and just screw on some sort of snap connector.

OK, yet another tech question - my dellorto superperformance book tells me that I don't need a T, and that one carb feeds the other. I don't see how it works, and there are no illustrations in the book about how to hook the fuel lines up. Does anyone have a photo of the fuel line routing, and the exit port on the master carb?

On one carb, you should have an IN and an OUT hose fitting. The other should just have an IN. Thus you run the fuel to the carbs "in series". These simply bolt on and off so you can swap them to fit your fuel set up (i.e. the IN/OUT fitting should be first in line, then the IN only fitting). I suppose it is possible that you have (2) IN only fittings. If so, you can probably get a replacement from either aircoolednet or CB Performance.

good luck

Here is a pic of my setup - I have been running dells for 18 years on this car -have have no problems with the CB linkage.

facing the arms toward the rear simplifies the cable hook up.

My carb linkage brackets had two mounting holes on the carb plates for the cross linkage -one high up and one lower which I used. Doing this clears the rain tray. I trimmed off the portion of the post not used.

The cross bar is longer than needed- you have to trim it.

I made a simple cable bracket that mounts to right side carb- no problems with side loading of the linkage or sync of the carbs.

DH

makes sense, but I dont' see it on my carbs - do you happen to have a picture of yours?

That's a really nice looking setup, I'm going to redo mine tomorrow and face the arms backwards also.

How did you cut the crossbar? I'm thinking I'll have to get someong else to do it. I have a grinder, but I'm not sure how the finished product would be if I tried to use that. I'd also have to drill a new hole in the center of the cross bar for the spring and ball to go into.


Do you guys have any input on the other issue I have - mating the linkage from my cb kit to my dells? I'm wondering if I can replace the plate mounted on my dells to make it work

Terry,
I believe the crossbar is rifle drilled- that is, there will be a hole remaining after you cut it to length. Or, check to see how deep the hole is drilled on each side and cut both ends to fit. The bar is made longer than needed to fit different applications.

Cut it straight with a hack saw and file it to final size. Better to cut it long and keep trimming it to size.
DH

By the way...

I love Dells.......

I have a set of 45s for sale.. if ya ever build a BIG engine.......

Hijack.......

C

I will try and get a couple of pics for you. In the meantime, check out this link and see p/n 7229, 7230, and 7231. I am not sure about the early vs late designation though.


DRLA parts diagram

Here is a blury pic of the fuel fitting.

Here a pic of my linkage setup. I put mine in front. Note on this pic (and the one above) I put in some spacers to ensure that the drop down links were exactly vertical for both carbs. This is necessary to ensure that both carbs are opening at the same rate.

Honestly, every carb linkage I have seen is a little different. Its kind of like a custom jigsaw puzzle.

The spacers came from a general hardware store (not Home Depot) but a real life hardware store.

good luck.

If the carbs were rebuilt by AirCooled Enterprises in Utah Art Thraen syncs them on a test engine. This means they are close but will probably run very well on your motor. They will still benefit from a good sync. (Aaron that is the only explaination I can think of why they could be synced).

yeah - i just like ribbing people

art is the dell man...

AA