blow-thru dells

69bug4me · Post by **69bug4me** » Wed Feb 06, 2002 3:45 am

hello can anyone tell me what needs to be done to blow thru a set of dells also will 36 downdrafts fit the idf manifolds or will i need to get a maifold just for the little dells?

MagOO · Post by **MagOO** » Thu Feb 07, 2002 11:40 pm

The carbs need special seals to avoid leakage on boost...Cb did this mod at one time but last time I spoke w/ them theybno longer performed this service for the Dell...Understand they now do the Weber IDF series tho....Also the jets needle and seat and e tubes are next in line for a change ...now look into the Booster rings...Get the CB book!!! 22.00 ....

MagOO · Post by **MagOO** » Thu Feb 07, 2002 11:42 pm

The carbs fit the manis but the car needs to be punched about a bit for them to fit often....The Dells with the funky manifolds are a no body pumelling deal....

moggy · Post by **moggy** » Mon Feb 11, 2002 6:47 am

John Maher converted my DRLA's to blow thru spec using a kit from
www.dellorto.co.uk

Here a link to John's site, in the works section
http://www.johnmaherracing.co.uk/intheworks.htm

Hope this helps

rozbug · Post by **rozbug** » Tue Feb 12, 2002 9:41 am

www.dellorto.uk.co of whatever it is, I eamiled them and they said that the a kit to do a pair of DRLA carbs is about $60 but you have to do some machining on the throttle shafts. I think I ll stick to a pull thru for now. I figure the cost of machining them is going to be crazy anyway. I guess I can always switch later.

martin · Post by **martin** » Tue Feb 12, 2002 10:51 am

www.dellorto.co.uk are they eurocarb?
Eurocarb can supply drla 40 dells, turbo ready for £450 (+ VAT which you guys in the US don't pay) this is the carbs only no linkage or manifolds.

moggy · Post by **moggy** » Tue Feb 12, 2002 2:27 pm

That's true Martin....... Might be a cheaper option in the long run.

Duneman111 · Post by **Duneman111** » Thu Mar 07, 2002 8:56 am

I've turbod over 25 VW's using both sealed and unsealed Delortos in both single and dual applications. You WILL get some throttle shaft seepage of fuel on standard carbs, but, close attention with carb cleaner after each use will prevent stickyness and dirt & grime collecting. I've seen a couple of guys using Webers, but, in talking to them....any modifications were "secret". I say, run what you have and use it as a learning experience.
Ryan

MagOO · Post by **MagOO** » Thu Mar 07, 2002 10:48 am

Seeing as Both Maser and Lotus used the blow through Dell in OEM ,it seems that it can be made to work...Does anyone have a schematic needed to do the machine work needed on the shaft/seal mod? Thank you

Boneshaker · Post by **Boneshaker** » Thu Mar 07, 2002 11:42 pm

Magoo, I am currently machining the shaft for my dell, as soon as i get it back from the machine shop i will post some pics and dimentions for all to apply to thier setup. The machining will not cost the earth and it seems to be a safe insurance against fuel leaks. You mentioned the needles in an earlier post, what type of mods are needed? I thought that the shafts where the main concern. The cb book says nothing about the needles.

Patrick

rozbug · Post by **rozbug** » Fri Mar 08, 2002 12:45 am

Boneshaker- About how much did the machining end up costing? Cost is my main factor right now. Let me know how it turns out.-Brian

MagOO · Post by **MagOO** » Fri Mar 08, 2002 1:08 pm

Boneshaker..I was refering to the needle and seat,make sure you read all the info on jetting and the mod rings in the book ...The number one reason for turbo mishaps is improper jetting and the engine going lean,, even one or two seconds of lean condition under full boost can fry your motor ... work up to big boost slowly .. a melted engine is a distinct and unplewasant possibilt ..., Good luck

Boneshaker · Post by **Boneshaker** » Fri Mar 08, 2002 11:56 pm

Brian, I will let you know as soon as the shafts are ready.

Did you get the CB book yet?

Patrick

krems · Post by **krems** » Wed May 24, 2006 1:19 pm

dellorto 36's.........i hear they flow like Weber 40's...but would they be decent enough to feed a 1.8 Type 4 under boost?

krems · Post by **krems** » Sat Jun 03, 2006 10:05 am

...anyone at all running dells?