Too big of a fuel pump??

PeTr0 · 01-08-2001, 11:26 PM

Is there such a thing? Can i put a 255lph pump in my car...or does it matter??

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Red 1993 Gt- flowmasters,BBK Shortie Headers, BBK Hi-Flow H-Pipe, BBK cold air induction w/K&N, Pro 5.0 shifer, 130 amp alt., underdrives,pioneer cd player and kicker component speakers, Kenwood Excelon amp, 2 12" subs in the hatch,firehawk sz50 all around, timing bumped to 13 deg., ADS Superchip, and mobil 1 oil lubing the 302.

01-09-2001, 11:04 AM

Sorry to jump in on your thread here PeTr0 but I'd like to know the answer as well. For instance, if my stock pump should happen to fail tomorrow can I just throw in a 190 lph in anticipation of things to come?

Forcedpower · 01-09-2001, 12:10 PM

Yes you can have to big of a fuel pump. But a 255 isn't going to be to big, well it will be to big but won't hurt anything. and the good thing is when you go to do future mods you will have enough fuel for them.

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'93 LX 425rwhp/410rwtq

LX XLR8R · 01-09-2001, 12:17 PM

exactly..255 is def not to big for a stock application..although if you plan on adding a secondary pump in the future(ie a blower) you should get a 190lph...255 is good for big all motor cars and ones with NOS but 190 is ideal with second pump

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1987 black notch(ex 4 banger)
DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

Unit 5302 · 01-09-2001, 01:45 PM

So you're saying the extra power drain, stress on the fuel lines, FPR, and other components is no big deal. Or perhaps the additional heat caused to the fuel pump motor itself do to the very high running pressure and backpressure on the fuel because of an overworked FPR is no big deal.

Okay that's good, I thought it might lead to premature failure of the FP like articles I've read seem to indicate.

NoSlow5.0 · 01-09-2001, 02:01 PM

So a 190 with a t-rex in line will be just right for an S-trim?

Light Em Up!!!

01-08-2001, 11:26 PM	#1
PeTr0 Registered Member Join Date: Jun 1999 Location: Chicago, IL, USA Posts: 286	Too big of a fuel pump?? Is there such a thing? Can i put a 255lph pump in my car...or does it matter?? ------------------ Red 1993 Gt- flowmasters,BBK Shortie Headers, BBK Hi-Flow H-Pipe, BBK cold air induction w/K&N, Pro 5.0 shifer, 130 amp alt., underdrives,pioneer cd player and kicker component speakers, Kenwood Excelon amp, 2 12" subs in the hatch,firehawk sz50 all around, timing bumped to 13 deg., ADS Superchip, and mobil 1 oil lubing the 302.

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01-09-2001, 11:04 AM	#2
cleangreenmachine Guest Posts: n/a	Sorry to jump in on your thread here PeTr0 but I'd like to know the answer as well. For instance, if my stock pump should happen to fail tomorrow can I just throw in a 190 lph in anticipation of things to come?

01-09-2001, 12:10 PM	#3
Forcedpower Registered Member Join Date: Aug 1999 Location: Charlottesville, Va, USA Posts: 328	Yes you can have to big of a fuel pump. But a 255 isn't going to be to big, well it will be to big but won't hurt anything. and the good thing is when you go to do future mods you will have enough fuel for them. ------------------ '93 LX 425rwhp/410rwtq

01-09-2001, 12:17 PM	#4
LX XLR8R Dirk Diggler Join Date: Feb 1999 Location: SLOATSBURG, NY Posts: 1,931	exactly..255 is def not to big for a stock application..although if you plan on adding a secondary pump in the future(ie a blower) you should get a 190lph...255 is good for big all motor cars and ones with NOS but 190 is ideal with second pump ------------------ 1987 black notch(ex 4 banger) DSS 306 w/ main support...Elderbrock 6028 heads..gt-40 intake..24# injectors...70 mm tb..77 pro-m...accel 300+..mac full legnth..tremec w/ pro5oh...full MAC exhaust,off road h-pipe,long tubes, catback...ron davis radiator..subframes, control arms...CFDF II..o yea holley FPR sucks..dont buy one..

01-09-2001, 01:45 PM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	So you're saying the extra power drain, stress on the fuel lines, FPR, and other components is no big deal. Or perhaps the additional heat caused to the fuel pump motor itself do to the very high running pressure and backpressure on the fuel because of an overworked FPR is no big deal. Okay that's good, I thought it might lead to premature failure of the FP like articles I've read seem to indicate.

01-09-2001, 02:01 PM	#6
NoSlow5.0 YOU HAVE NO MARBLES!!!!!! Join Date: Aug 2000 Location: Jonesboro,Georgia,USA (Providence, Ri) Posts: 868	So a 190 with a t-rex in line will be just right for an S-trim? Light Em Up!!!