Delorto carbs

[glowz]

I know most dont like the tripple set up, but Im currently interested with tripple delorto 40's, on the short intake necks. Does anyone have some advice for me? I dont know much about delortos are webers any better? Thanks for the help.?

[Dan]

You might want to PM HS30-H he knows a good bit about triples.

[HS30-H]

Please don't.

I happen to think that Dell'orto carbs are so ugly that only their mother could love them!

They have no advantages ( or disadvantages ) to speak of in comparison to all the other dual-choke side-draught carbs that you might choose - apart from the very important one mentioned above. Okay, I give in - they work just fine.

In a nutshell, don't bother putting triple side-draughts on an otherwise stock or stockish L-series Nissan / Datsun engine. If you DO, make sure that they have quite "small" chokes ( venturis ) so that the incoming air does not stall as you open the throttle. Small chokes lead to better driveability for a street engine, and the most common mistake is to install carbs that are too big or have chokes that are too large. Leave the big carbs and big chokes to the racers...........

There are plenty of good books out there on the subject that give much better advice than I can give here.

Mind you, they don't usually mention anything about the Dell'ortos being the Bride of Wildenstein of the carb world........

Of course, if Mr Dell'orto's lawyer is looking in - I don't mean it really, sir.

Alan T.

[Ivan]

The tripple carbs won't do much on standard cams, you would probably want to bore them out another 2mm as well

[glowz]

thanks for the info, I undrstand that bolting tripples onto a stock non cammed l24 or l28 wont do much, probably decrease performance. As for the application on my question, the tripples will be going onto to an L28 which has a rally cam and 14:1 comp, as well as no accessories, everything will be electric. etc.. Just wanted to get some dirt on the brad delorto. Thanks again....

[HS30-H]

Hi Glowz,

I can see why you were enquiring now. A hottish L28 with a decent cam would certainly benefit from a set of triple side-draughts. Maybe you could go up to 45's on the L28 as long as the chokes are not too crazily large.

However, one thing that I noticed in your post has worried me; a compression ratio of 14:1 is never going to work on normal or even race type gasoline. That's the kind of compression ratio that would need to run on nitro methane or methanol!!!!

I would check that out if I were you, as 10.5 or 11:1 are just about the highest you could go without running into serious detonation problems without running "funny" fuel.

Alan T.

[shock96]

I have a buddy running 14:1 on his GT-2 Z. Works fine on 110.

330hp at the rear wheels.

Mike

[HS30-H]

As far as I could tell, the original question from "glowz" did not seem to be about using the Dell'orto carbs on a race car. I don't know about where you live, but where I live its difficult to find "pump gas" any higher than 98 RON.

Alan.