Upgrade For Fuel Pump (KLZE)

lakersfan1 · Post by **lakersfan1** » September 17th, 2005, 10:36 pm

Slammed6 wrote:I always tell everyone, you WILL notice a difference when changing the fuel pump on a N/A car. I noticed on both my MX-6 and MX-3 the car seemed to react better when open her up.

If there were issues with fueling, we'd see lean or at least near stoich conditions when people do wideband readings when they dyno. All I've seen is still all rich readings on everyone's dyno wideband graphs.

Slammed6 · Post by **Slammed6** » September 18th, 2005, 7:49 am

OK, if you think a fuel pump is a waste of money than thats ur decision.

My decision is to upgrade, your car will have better throttle response. Its worth it. :thup:

bmwm3guy · Post by **bmwm3guy** » September 18th, 2005, 9:30 am

theres actually a great discussion on ProbeTalk about this that I was reading the other day...

it seems that many people think that the 255 is way overkill unless you're going Turbo/Super.. The 190 doesnt work as hard, makes less noise, and uses less power from your engine. Technically, the 255 would be taking more power away from your engine than a 190, and since the 190 is already sufficient, the power lost using the 255 is easily avoidable and not necessary.

lakersfan1 · Post by **lakersfan1** » September 18th, 2005, 12:13 pm

They're electrically driven. How do you loose power using a 255 over a 190?

Nd4SpdSe · Post by **Nd4SpdSe** » September 18th, 2005, 12:35 pm

Honnestly John, I don't remember the number, the the pump i ordered was teh 255LPH for an Mx-6, I don't remember the exact number, it's been a few months, but I'll try to find the number on the reciept when I go home tomorrow, but I believe it's GSS317-400-730. I didn't get no installation kit, just the pump itself.

Honnestly, I don't head the pump at all and for morew power, if it's because of current drain, well, I have dual Optima red tops, so that's not an issue

bmwm3guy · Post by **bmwm3guy** » September 18th, 2005, 1:46 pm

Nd4SpdSe wrote: if it's because of current drain, well, I have dual Optima red tops, so that's not an issue

then you need not worry.. thats what I was talking about was current drain from your alternator. MX3's are already notoriously weak for amps.

Nd4SpdSe · Post by **Nd4SpdSe** » September 18th, 2005, 3:25 pm

90amps is weak?

slowmx3 · Post by **slowmx3** » September 20th, 2005, 10:42 pm

i just added a 255 to mine, and can't tell a frickin' differance. I needed one though cause mine was pooped.... i don't replace with stock though thats just me!