Fuel pump upgrade....

[Dawgz]

Ok so im boosted at 4-5psi...and i need to do a fuel pump upgrade...


i know some of u got it from www.urdusa.com, but i went on and there are none there for the 1mz....

My question is, do i want a 190 Flow? 190HP Flow? a 255Flow or a 255HP Flow?

and where can i buy it so itll fit my 2000 SE V6 Solara?

[Astro]

Call them up, they may still have some or can make you one. All they do is give you a different harness and tell you how to do some slight modifications.

[QuickSEV6]

Here is an idea for you. You can copy Jim@foreignaffairs. he redid his entire fuel system.

Bosch fuel pump: Part#0 580 254 910-390
Golan fuel filter: Part#32-06AN
Aeromotive regulator: Part#13109

Might as well throw in some bigger injectors too.

Hope that helps.

By the way, you can get the pump from any autozone, If they don't have it in stock, they can order it for you.

[Akfahad]

the 190LPH pump works fine for me, again purchased thru URD. You only have to do some slight modification to the pump housing in order for it to fit, nothing major. If you plan on taking the car to the next level, i.e. engine build and more boost down the road, then I'd go with the 255.

In terms of bigger injectors, if you read some old posts, there's been some debate over whether or not bigger injectors are needed. I do have bigger injectors, Jim@FA doesn't. I guess it's ultimately going to be a personal choice. me personally, I'd get some. Always better to run a little rich, but then again, I'm biased since I have bigger injectors.

[Dawgz]

Since uv'e gottn the 190 walbro installed, has it given u any trouble?

[Astro]

Well, I believe every car is different. Hence, Jim can get away with stock injectors. I ran super lean with Supra injectors and 190 pump, so now I'm running RC 370 and 255HO pump, Aeromotive regulator w/boost port, and -6AN fuel feed and return lines. Will see how it goes when I dyno...Either way, I'm not spending any more on this car, I'd rather put money on a RWD with more potential. [/i]

[Dawgz]

What are u boosting at Astro? what psi?

[JavaJoe_2]

A 190 shouldl be fine for you. Works great for me and am currently un-tuned and seem to be running very rich.
I am going to go with the supra (310cc???) injectors i bought from TRD4LIFE.

[Astro]

What are u boosting at Astro? what psi?

I'm still at 5.5 psi.

[Dawgz]

u were leaning out with 5.5psi? and u have bigger injectors and a better pump? WHaat?


what were ur dyno numbers...

[Astro]

220fwhp and hitting max 17.5 a/f We even set the AFC at +50 and took off the Supra MAF. So, these fuel upgrades better fix it because I'm not doing anything else....

[Dawgz]

true, my car is at 5.5 psi and it was running lean at the top end as well, they detuned it to run at 200whp and 208 torque....they told me to go get a fuel pump upgrade so they can safely tune it to higher numbers.



by the way, are u auto? or manual....im thinkn auto since u only got 220whp on 5.5psi....or am i wrong?

[Astro]

Manual. I really hope this 2nd fuel upgrade will fix the problem. I don't want to go spending more to find out it's something else....like a bad or just over-sensitive knock sensor, I'm thinking about relocating. I've never got the knock code, but it doesn't mean my cpu couldn't be pulling timing and not show up. I even did the knock sensor mod too.

[Eye8Pussies]

^ post your previous dynos and let us see if there's a knock sensor problem....

and you're right- the cpu can easily pull timing without you knowing

[Astro]

I'm in Tempe, Arizona right now so I can't scan the dyno sheet. I'll post it up on Friday when I get home.
Man, I wasn't that surprised on the dyno result. I knew there was something wrong when I never could pull as hard as it first did after installing the Supra injectors and the 5.5 pulley.