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I just picked up a set of Dellorto 40 Carbs for my GTV 2000. The car will have Motronic pistons and Euro carbs. Could someone recommend needle sizes for this set up? The car will be used for street only.
Thanks!
John
 

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Hi John
I guess you meant euro CAMS, are these carbs classic (no letter after DHLA40) or later type with letter such as N or H?

Makes quite a difference to jets/holders/correctors.

Paul
 

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Ok look like classics John and I'll assume they have 32mm chokes (check!)

Should be something near 135 main, with 200 air corrector and .7 emulsion.

Idle should be 50-60 with .3 holder (standard is 50)

Accel pump should be 30-40 (standard is 33)

If you are rebuilding them I'll point you to all the settings.

Cheers Paul
 

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Discussion Starter #5
Wow, great info. I will dive into this soon (too much work the next few days). Thanks very much, Paul!

John
 
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