Roughly what bhp is the standard fuel pump good for?

[appletree]

just wondered roughly what bhp level the fuel pump needs to be upgraded on a 325.

are 325 pumps and 318is the same? seam to remeber all facelift pumps are the same but not sure

what lph walbro pump do you upgrade to? part number?

[fuzzy]

i know mine struggled at 263bhp. you could feel it holding back at high revs. a walbro escort cosworth pump was the job at £100 and a direct replacement for the e30 pump and was good for up to 500 bhp allegedly.

[appletree]

do you know what LPH the escort pump is fuzzy

[fuzzy]

244 iirc.

[Gunni]

I have seen a stock pump squeeze a tad over 300hp.
but it´s very pressure based as well.

300hp @ 3bar pressure may not and very likely not mean 300hp for a car running 1bar boost, so 4bar pressure.

[appletree]

Think mine will be running 14-16psi and hopefully will be making 280-300bhp so if one comes up cheap on ebay, i'll probaly invest
there seams to be alot of 255lph ones on there listed as e30 325 replacement ones

[billgatese30]

I think I have a spare walbro pump in the back of the garage. If I remember I'll have a look in the morning and dig it out before I go to bed.

[fuzzy]

theres quite a few different cars that use the same pump, nissan 200 lists the same walbro pump as the cosworth and the e30.