So Finally getting round to doing a few jobs.
One of the things I have read for years is regarding how you should get a properly designed kit and anything else is dangerous and blah bla.
My 5 has had a bosch pump for 30 years.
It doesnt have anything fancy just a 580254973 pump which was superseeded by the 910.
It doesnt have a bosch filter just low down in the boot and with the CAV filter and it has done many many miles of hard driving here in the alps without ever missing a beat.
So sorry folks when I read stuff about you will damage your car and stuff I am not very convinced as I am living proof.
The original system was deigned to feed 6.89bar @72,74 Lph.
The Bosch I have feeds 5bar @130 Lph.
Just about every Bosch pump feeds 5b (some 3b) Some of the differences are in the consumption and I have no idea why a 910 pulls 1amp more than a 909.
Now I am not sure how all this converts as it would appear that the Bosch pressure is too low but what can I say, they work.
Maybe someone wiser than me can explain?
Anyway back to the point. due to a layup without fuel my pump seal has gone and its leaking so its time to change.
I have a 580254933 someone gave me and I am going to try it out as I cant find any info regards the specs, worst case either she wont run at all or will not ave power at top end, unlikely its dangerous as I said before in theory its rare to have pumps that are more powerful than the Lucas.
Would be great if someone knows where to find the specs of the 933 (Saab 900 I believe) to see but if not I will try it.
For those interested all the info point to vistually all the pumps we are interested in being standardised to the 909 and 910 which have similar specs so all this talk about you need our kit as its the only safe one has me wondering if its not marketing?
For those of you interested I have also found a Marelli pump with similar specs at about 1/5th of the Bosh price.
Interested to hear from anyone who has actually tried the combinations or knows the effects of changes in Lpm (what most of the Bosch do when specs change)
I have been collecting quite a bit of info so for those of you interested here are some links.
http://www.tr6pi.com/Lucas%20Petrol%20Injection.pdf Page 8 shows lucas fuel specs
http://www.leicestertr.co.uk/Part%20Numbers_files/pumps.pdf Range of pump numbers as published by Peter Winn many years ago.
https://www.auto-doc.it/magneti-marelli/7613355 Marrelli pump 6b @120lpm very cheap......It does look identical to my 973 and at that price I am tempted to get one to try.
https://www.boschfuelpumps.com/B.htm list of bosh specs
Last but not least the 2 lists of Bosch cross reference numbers. Second one is easy to read
If anyone has info on the 933 pump I am interested the last link shows the Saab 900 as a 909 so I am hopeful...So meanwhile I am going of to play
P.s. I have been doing a lot of research on oils and do you know that some very well done test charts showing oil resistance I have found actually point to all the chat about zinc and stuff as not being too relevant and not as worrying as some people might think. Gonna post it now separately.