DHLA 45D vs 45P

[LotusMonkey]

Hi folks,

Does anyone know whether the Dellorto DHLA 45P and D share the same body? They are both tri-jets with six pregression holes (and the cross head, rather than flat progression cover screw). I know they will be jetted and setup differently, really just need to know if it is the same body.

I did a search of the forum before posting, but the one piece I found containing info about the differences is wrong, as it says the 45D and P have 5 progression holes, when then actually have 6.

Thanks,

Duncs

[Lotus-e-Clan]

If yours is a 90SE then you will have tha later 'vacuum-based engine managemnt system' which requires 2 vacuum take offs per carb. The D apparently has only one vac take off per carb (I don't have a D (mine's an 89Se with P carbs) but I did a forum search to find that a member who had both D and P pass through his hands pointed out this difference).

The later vacuum engine management really works well so I wouldn't compromise the system with D carbs if it were my car.

[LotusMonkey]

If yours is a 90SE then you will have tha later 'vacuum-based engine managemnt system' which requires 2 vacuum take offs per carb. The D apparently has only one vac take off per carb (I don't have a D (mine's an 89Se with P carbs) but I did a forum search to find that a member who had both D and P pass through his hands pointed out this difference).

The later vacuum engine management really works well so I wouldn't compromise the system with D carbs if it were my car.

Hi and a big thanks, you've helped me figure out something that was causing some head scratching!! I just assumed they were D's as this is all I have seen mentioned - just gone at the degreaser on the other carb and can clearly see it is a P, where I could not on the other. Having looked at my copy of the service notes the TDA sheet listing the carb specs is stamped "APR 1987" so only includes Ds on the Spec 10 columns, and hence pre- the changeover you mention.

I definitely intend to keep the 4-port vacuum. Thanks again!