For the most part, 35 GPH is just fine for me. Of course my name isn't synonymous with overkill. That may play a small part in that.
i took Mel's advice on how a mechanical pump was just fine for my bull moose and rebuilt factory turbo.
did some reading and asked my old hotrod self what he would do.
my 95 gph pump @ 7 psi did ALOT better than the factory lift pump. like my a$$ dyno really felt a difference.
i will never run anything less than that on these idi's, but of course i dont run without boost.
another reason for the increased flow is that the IP will only use so much fuel, whatever it was intended for.
running them with not enough fuel can cause longevity issues
running them with too much fuel,(flow, not pressure) will do nothing but cool them better, and dump the excess fuel out of the return side..
IMO cooling the IP as well as the injectors more efficiently
THAT SAID....
ive been binge watching engine masters on motortrend through my insomniac times.
they do have mechanical fuel pumps (BBC in this case) that are capable of 170 GPH.
this has been a project on my mind that i would like to do in my "spare time"
convert a chevy style high performance fuel pump with the IDI style arm.
theroetically, one can just swap the pinned arm, but anyone thats done an oddball project like this, knows its never that easy.
