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tomtom72 · 07-13-2012

I did this "mod" at 17 yrs and about 33k miles. My OE pumps were just a bit tired showing on the low side of the FSM PSI spec spread. I now have 55k miles so figure about 22k miles and 5 yrs worth of use, and the only issue I have had was one of the factory plastic clamps cracked. The holders for the pumps are in great condition as I just looked at them the other day when I pulled it out to check the screw clamps I used to replace the OE plastic clamps.

I know this sounds a bit stupid, but I could actually feel the difference from my original BG pumps and the new ones when I get into the secondaries. My OEM pumps tested right at 46 PSI with the KOEO test, now the Bosch pumps still test at 55 - 54 PSI.

I should mention this as a fwiw. When I bought the Bosch pumps they were over or right around $100.00 each. I looked them up like a year ago and the price is almost 1/2 now...unless I made a mistake with the part numbers because you can't look them up by application. I just wonder why they are less now than back when I bought them?

Tom

07-13-2012	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: New option for fuel pump replacement I did this "mod" at 17 yrs and about 33k miles. My OE pumps were just a bit tired showing on the low side of the FSM PSI spec spread. I now have 55k miles so figure about 22k miles and 5 yrs worth of use, and the only issue I have had was one of the factory plastic clamps cracked. The holders for the pumps are in great condition as I just looked at them the other day when I pulled it out to check the screw clamps I used to replace the OE plastic clamps. I know this sounds a bit stupid, but I could actually feel the difference from my original BG pumps and the new ones when I get into the secondaries. My OEM pumps tested right at 46 PSI with the KOEO test, now the Bosch pumps still test at 55 - 54 PSI. I should mention this as a fwiw. When I bought the Bosch pumps they were over or right around $100.00 each. I looked them up like a year ago and the price is almost 1/2 now...unless I made a mistake with the part numbers because you can't look them up by application. I just wonder why they are less now than back when I bought them? Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member