Hi all,

Anyone running the 3-DCOE set up on their Slant?

Wich kind of cam do you think that will work well with them?

I'm planing my next rebuild and already have a MP #4286681 cam (276/276 - .490 lift, Centerline 106 instaled 104) and I'm looking for a very strong runner, but still streetable. So I thought that going any further of this cam will make my car hard to drive on the street, but will this cam still be OK to run the 3-DCOE? will it be small?

I know that larger cams seems to quiet down with the 3-Webers ... but still in the end I want a HOT streetable ride ...

What are your thoughts on this?

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

That is a very nice street/strip cam, and should work very will with DCOE's. You have 45mm carbs?

You could go bigger as the Webers do certainly quiet down a cam.

Lou

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Home of Slant6-powered fun machines since 1988

Right now I do not have the 3-DCOE set up, but I'll certanly buy it in short time from PentastarParts (the Redline Intake + linkage + fuel lines from) and the carbs should be easxy to find in a speed shop in my country.

So mi biggest concern was about my cam being small fo this set up ... but it seems to be a good starting point, with the possibility to go bigger on the future.

yet I'm still in the process to buy the parts for my build-up ... I think that by the end of 2009 I will take my engine out ...

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

A small note about DCOEs, make sure you buy these are same p/n as even the DCOE 40 or 44 could be correct but it does have other characters stamped along with weber type makes them bit different. Best to get them all matched up if you are buying seperately and in GOOD condition.

Second, rebuild them, weber rebuild kits are inexpensive! Shaft wear are not a issue, these use ball bearings in DCOEs.

Thirdly, you need to buy bunch of linkages and such, from weber resellers.

Jets is what you get clobbered for cost. These DCOEs have about 6 jets in each, IIRC.

Engine/intake/ignition systems had to be absolutely A+ and attention to details or you will be chasing all germlins and make tuning DIFFICULT and frustrating.

Air gauge with adapter are a must to balance these multi-carbs. DCOEs have bypass air screws to balance them so all flow same at idle and during small openings. Throttle plates are NOT to be adjusted once they are all adjusted properly via throttle linkages so they are all working in unison.

Oh, being Weber, they will do MPG for daily driver and power. With DCOEs, you will get instant response. Not millisecond delay with one carb, TBI or multiport injection.

Cheers, Wizard

The linkage kit from pentastar parts is a quality item- I would recommend buying that over buying separate pieces elsewhere.

http://www.pentastarparts.com.au/sunsho ... ail&p=2186

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<img src="http://farm4.static.flickr.com/3173/2992308402_5481afb26e_t.jpg">

Yes my plans are to buy these from Pentastar Parts:

The Intake, the linkage and the fuel lines respectively
http://www.pentastarparts.com.au/sunsho ... tail&p=488
http://www.pentastarparts.com.au/sunsho ... ail&p=2186
http://www.pentastarparts.com.au/sunsho ... ail&p=2185

For the carbs I'm going for brand new Weber 45 DCOE and of course will look at the part # to match all of them. I was looking for this dealer, but I think that they should be easy to get in a local Speed shop in Argentina brand new. if not Webercarbdirect.com is my second choice, take a look:
http://www.webercarbsdirect.com/45_DCOE_p/19600.060.htm

Also this item looks very useful for tuning
http://www.webercarbsdirect.com/STE_SK_p/sk.htm
http://www.webercarbsdirect.com/STE_118_p/118.htm

there is also a soft mount kit for the carbs, something that could be a good addition to the set up
http://cgi.ebay.com/ebaymotors/SOFT-MOU ... ccessories


The block will be Overbored to 3,44 (+0,04)using a torque plate, line honed, hot tanked and will use longer connecting rods with forged pistons with ligth-weight pistons pins, al the bottom end fully race balanced.

My biggest concern is about the cylinder head polish and porting ... all the other stuff is already clear for me.

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Take care with this store called:

webercarbsdirect....

Linky:
http://genuineweber.blogspot.com/

The websites I know uses good stuff:

http://www.redlineweber.com/
http://www.carbsonly.com/ <----- I used it few times for parts and jets.

Cheers, Wizard

Wizard thanks for your comments!!!

I can't imagine myself paying 1000++ USD for three counterfit Webers ....

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Wizard are you runing on 3-dcoe?

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Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)

Ya, whats up Wizard we need to pick your brain.
What fuel pump configuration are you using?
Engine Combo?
Performance #'s?

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<img src="http://farm4.static.flickr.com/3173/2992308402_5481afb26e_t.jpg">

Reason I'm bit half-known and half-read so much about webers.

I did lot of research on Weber as I wanted to understand them better to help me tune my stock 2.2L (caravan) with 2 barrel 32/36 DFAV, netted me 20mpg instead of 10mpg on a holley 5220 junk.

Also read lot about DCOE and downdraft Webers. And have bought one book about Weber by HP (it's at home have to check the title) but I have not yet to get a offical Weber book because it is harder to obtain bec it is not ISBN number and my preferred Weber reseller doesn't carry this. :O

Fuel pump is stock mechanical but not ideal configuration but works for me because I used a 3 nipple filter and second filter before the weber for extra filtering as the 3 nipple filter is too corase and Weber is 3.5PSI max and of SUFFICIENT flow at WOT. But this is not ideal, as it is very irregular pulsing flow. Best to have rotary pump and decent regulator is recommended. That is one of these things I have to save up for and it's far off and this is my daily driver.

I have not found a decent low PSI gauge at good price, (not 100 bucks or more). Avoid Mr. Gasket PSI gauge, what a poo!

Cheers, Wizard

Great tips Wizard!!!

I was thinking of keeping my mechanical fuel pump, because I hate the electric pumps buzzing ... but I know that this may feel short for the three DCOE ...

Now I running on 2x1 bbl Holleys 1920 with the mechanical pump and it works perfect ...

I might add an electric pump only for start up and check if it's needed somewhere between idle and WOT ... some trial an error stuff I guess ...

_________________
Martin Zappettini
1974 Dodge Polara RT 318cu.
1965 Valiant III Coronado Slant Six 6-Pack (soon!!)