A great reference for Bosch distributors which will hopefully help some users on here https://www.vdubcampers.co.uk/bosch-distributor-part-numbers
I just googled for it t'other day - I was actually looking for a much better one but I couldn't find it.
I've used this one in the past - maybe similar/same info as Lasty's link, but with clicky sub-links to more application info? https://oldvolkshome.wetwesties.org/ovhignbo.htm
I also provided the pictures of the advance curves for The Samba https://www.thesamba.com/vw/forum/viewtopic.php?t=617242
I’m looking into fitting 021 905 205N dizzy and wonder if anyone knows info about vacuum provided from twin Weber 34 ict’s
Gusbus had 34 ICT’s and the vacuum was fine for the Bosch dizzy we had fitted. Bosch 0231 168 005 SVDA VW p/n 021-905-205/P It was a type 4, 1915cc & it drove really well.
Mine provide 8 inhg at partial throttle which is just over 200mmhg. That is with the vacuum tee'd to both carbs Sent from my Pixel 7 using Tapatalk
Bosch part number is 0231 170 034 which is the equivalent of a VW 043 905 205 Sent from my Pixel 7 using Tapatalk
As above, it’s similar to a 034 provided your man sticks a 535 vac canister on it instead of the original Adv / Ret canister that the 205N came with. I run a 123+ with my Twin 34 ICT’s, both carbs Tee’d into dizzy with anti pulse device in-line. I can see the Vac (kPA) via the app when on the move. When feathering the pedal at speed I’m seeing 68kPA (510mmHg) so twin Webers are capable of delivering a good steady vacuum. Not sure how that pans out scaling wise when max advance on the 535 can is 200mmHg but i’m sure loads of folk run Twin Webers and 034’s Really pleased with my set up now Sent from my iPhone using Tapatalk
123+ Screenshot of Vac Advance working when on the move (circled red) and feathering the pedal Sent from my iPhone using Tapatalk
Apologies should’ve posted pic in the same thread as the one above. It’s a screenshot from the 123+ app showing the working vacuum in kPA when on the move and being light on pedal. Sent from my iPhone using Tapatalk
Lasty loaned me a 205P when I bought the lumenation stuff so I think it has the proper vacuum can on it. Number shows 581...which seems close enough to the 535...
