@@makavelibenzze the fuel pressure regulator on the return line from the fuel distributor sets the fuel pressure. As long as the pump can meet or exceed the flow and pressure of the oem ones, it will work fine,
@@MMWA-DAVE woahh....okey means it does not damage the FD then it is fine enough...btway i messed the HEX key inside the FPR...i turned it all the way Off, i counted how many turns....and Open it back as counted but i messed it a bit turning counter clockwise/clockwise when finding an issue (misfiring, it was the cylinder head) what does the Hole HEX do? return back the fuel?
@MMWA-DAVE hit up an Australian company called "turbosmart" the dealer here set me up with a new pump and their fuel filter; it is working great. I did this after buying 4 bosch pumps in 30 months. Also if you are going to let these cars sit: add some Amsoil fuel conditioner to the tank and keep the fuel tank full (less air in the tank=better)
they are still not ethanol rated- the ones im looking at anyway. But hopefully are better than the bosch ones. They certainly seem better built but wont know till i try them.
its not sold in my state but absolutely would not be surprised if i ended up with some of that crap from the questionable place i bought fuel from once only.
Looking forward to the in car comparison :-)
The 088 type equivalent I used was silent even with the failed in tank lift pump at 1/4 tank (745 Volvo).
I had the same trouble with Bosch replacement pumps for my ‘87 420SEL. I am interested in hearing more about these racing pumps
im by no means recommending them as have not even seen one yet, but considering getting walbro branded universal fit inline pumps.
can does walbro pumps be used for a m102 230e? pressure is same?
@@makavelibenzze the fuel pressure regulator on the return line from the fuel distributor sets the fuel pressure. As long as the pump can meet or exceed the flow and pressure of the oem ones, it will work fine,
@@MMWA-DAVE woahh....okey means it does not damage the FD then it is fine enough...btway i messed the HEX key inside the FPR...i turned it all the way Off, i counted how many turns....and Open it back as counted but i messed it a bit turning counter clockwise/clockwise when finding an issue (misfiring, it was the cylinder head) what does the Hole HEX do? return back the fuel?
@MMWA-DAVE hit up an Australian company called "turbosmart" the dealer here set me up with a new pump and their fuel filter; it is working great. I did this after buying 4 bosch pumps in 30 months. Also if you are going to let these cars sit: add some Amsoil fuel conditioner to the tank and keep the fuel tank full (less air in the tank=better)
I haven't kept up... why do your exhaust manifolds look so good?!
ceramic coated them on both my w124s
I ended up converting my twin fuel pump setup to a single race works one works a treat
I will also probadly end up doing that when sl500 fuel pumps start acting up.
What year is your car please? Is it a 24 Valve Klassik? Good video, as always. Thank you.
both my w124’s are 1990, 24 valve with consecutive sales order numbers
Are the modern racing pumps without seals? Or do they have better quality seals, because of the variety of chemical nasties in various racing fuels?
they are still not ethanol rated- the ones im looking at anyway. But hopefully are better than the bosch ones. They certainly seem better built but wont know till i try them.
Wild they are that bad
Are you using Ethanol fuel?
its not sold in my state but absolutely would not be surprised if i ended up with some of that crap from the questionable place i bought fuel from once only.