fuel pumps?

I searched but I didnt find the answer I was looking for. Will a 1g fuel pump fit in a 2g? thanks

well I'm not 100% sure, but vendors do have them listed for sale as 1g or 2g, so I would guess no.

thanks it was a lot of help

Why on earth would you want to put that pussy ass 1g fuel pump into the 2g? The 2g supports 10lb/min more airflow.

so if it supports 10lbs/min more, how much is that total?

I just asked because this guy at work thinks he knows so much about the 2g's. So I just wanted to know if it did or not.

Chances are he doesn't. People that say they know alot about DSM's turn out to know very little.

so if it supports 10lbs/min more, how much is that total?

We'll, using the factory enrichment values over 2.1g/rev, assuming 43.5psi on the stock 2g FPR and a re-wire job done. You're looking at a max of 26.5 GPH of fuel flow on the 1g fuel pump, that caculates out to 26lb/min @ 15psi using thoes values as an example. the 2g fuel pump will push 34GPH and a max of 35lb/min at 15psi, same values.

Of course if you have an safc2 or other air/fuel controling device you can lean the massive 55% enrichment over 4500rpm's out to what ever you want. For example. If you tuned the 1g pump to 11:1 (same past values) you would net a max of 31lb/min airflow & 40lb/min airflow on the 2g pump.

What is the best way to get at our fuel pump\
under the back seat?

www.vfaq.com has a good How-to..

so if the stock pump flows up to 40lbs/min does that mean that with an injector upgrade it will flow enough for a 16g?

No, not really. You won't be able to max the turbo out. But you could use it, I wouldn't recomend it though.

I know that the awd 2g and the fwd 2g have different set ups but will a awd pump fit on a fwd car? I have been searching this question for about 45 minutes and to tell you the truth Im tired of reading. thnaks

I know that the awd 2g and the fwd 2g have different set ups but will a awd pump fit on a fwd car? I have been searching this question for about 45 minutes and to tell you the truth Im tired of reading. thnaks
I don't think so because for some reason the awd nd fwd's have completely different fp set-ups. Did you buy the wrong one or something?

They have diffrent harnes's. http://www.automotivearticles.com/123/AWD_Conversion.shtml

yeah I bought the wrong pump.

255 or 190? I might take it off your hands depending on what you want for it

yeah I bought the wrong pump.
Can you return it? Which did you buy fwd or awd? I have an awd pump sitting here so if you have a fwd we can compare the part numbers.

yeah I bough tthe wrong pump

it is a awd 190 and I have a fwd

I dont have the pump yet its getting shipped to me right now

Wait, wait, wait. IIRC That fuel pump will fit just fine. its the connectons from the pump to the harnesses that are diffrent between models. There shouldn't be any diffrence between the 1g fwd & awd or 2g fwd or awd. Their would be a diffrence between 1g and 2g. Your fine.

so the walbro 190 pump will bolt right in in place of the stock pump?

I just checked ExtreamPSI.com. The 1g have AWD, FWD specific fuel pumps. I don't know the answer to that. The 2g pumps on their website are not drivetrain specific like the 1g. Sorry dude, I've never had a 1g. Can you call the place tell them you think you bought the wrong pump?

We'll, using the factory enrichment values over 2.1g/rev, assuming 43.5psi on the stock 2g FPR and a re-wire job done. You're looking at a max of 26.5 GPH of fuel flow on the 1g fuel pump, that caculates out to 26lb/min @ 15psi using thoes values as an example. the 2g fuel pump will push 34GPH and a max of 35lb/min at 15psi, same values.

Of course if you have an safc2 or other air/fuel controling device you can lean the massive 55% enrichment over 4500rpm's out to what ever you want. For example. If you tuned the 1g pump to 11:1 (same past values) you would net a max of 31lb/min airflow & 40lb/min airflow on the 2g pump.

Wait, i thought 2g's Ran at 33psi fuel pressure, stock... am i wrong? if so, let me know because i have my FPR set @ 33 psi... with a walbro 255hp pump, and a rewire...

2g's run 43.5psi with the vacuum line disconnected. 1g's run a little lower at 37psi. I don't reamber what the fuel pressure is suppose to be with the vac lines connected, though 2HG = 1psi

well, i got the 33psi setting... if you find what its ment to be at, please, let me know...

well, i got the 33psi setting... if you find what its ment to be at, please, let me know... and yes, i have the vac line attached...

scottsee is correct with his base pressure, and the comment about 2"hg being 1 psi. So simply do the math. If you have 14" at idle, and 43 psi base, presure with the hose on should be 36 psi. Etc.

I just got done with a fuel pump re-wire. I makes a huge difference.

There is something wrong. even before the re-wire. when I hit the gas hard to like 5000 rpm and let off the gas the car wants to die. Well it does die but since I rolling the car starts back up like a push start. This started to happen when I put upper and lower intercooler pipes. any ideas? one more thing, when the car is at a dead stop at idle and i hit the gas and let off the engines still revs for about an additional second. is this normal? thanks

HAve you done a boost leak test? That sounds like your problem. As far as the reving, mine does the same thing so I wouldnt be worried

That would have been the last thing I would of thought of. you could be right. Also I think I have a vacuum leak, i can hear air coming from on top of the intake manifold where the two solenoids are. I tried using soap and water but no luck. On my autometer boost gauge reads 16-20 psi on vac.

so stock fuel pump pressure is 36psi with the vac installed right? ...just making sure...

Depends on what your vacuum is. Just do the math. Base pressure minus half of your measured vacuum. Everyones vac will be a little different dependant on mods, mileage, etc.

i can take the vac off my boost gauge right? it reads boost and vac... so vac@ ideal... then set my Fuel pressure to the base of 43.5 and subtract half my vac pressure from the base fuel pressure? and set it to that? right? *its so simple, yet so difficult... i would be so conserned if gas didnt....well... blow up...*

You shouldnt have to "set" the pressure with the hose on. It should go there automatically, after you set it to 43 with the hose off :) Otherwise everything else you said seems to be correct.

I just put in a new Walbro 190 fuel pump yesterday. The car runs better at idle and all around. I can acutally hear the pump working, it sounds like a turbo supra boosting 30psi at full boost. LOL

I was just thinknig, would a rewire burn up the fuel pump? Even though I have a walbro 190 pump, I just dont want the pump to get screwed because of the rewire.

You are not really adding any more voltage to the pump, just allowing it to get what it was designed to recieve. ;)

thanks