12SecZ

I need the exact number for a direct swap on the 350Z. I am having trouble finding it or a vendor that carries it.

By the way I found some great specs for the Walbro's including the 255l.

http://www.autoperformanceengineerin...l/fpspecs.html

great link, check it out!

7 eleven

I'm guessing you going to try the 190 to see if it can support more hp with out over powering the stock FPR. I was wondering about this but didn't want to shell out 90 bucks if it didn't work. Best of luck I hope it works than we could have a cheap fix for up to 420-450 hp worth of fuel.

You can find them on ebay all day long. It doesn't matter which car you get one for it's all the same pump just different mounting kits, that don't help us much anyway. Here's a link to the ones currently on Ebay

http://search.ebay.com/walbro-190_W0...sortpropertyZ1

Best of luck
Gary

12SecZ

Exactly the reason, I am not lean just want a buffer. The highest I have seen is 12.1 the 190 is perfect and it also doesn't need modifying of it's physical structure (plastic) it pops right in.

I did do an EBay search yesterday and only saw one and it was a DSM version for a Talon so I was hesitant.

I'll keep looking for the universal version?

Thanks

12SecZ

missed your link. See that buy it now for $85.00 for the Eagle? That would work?

Thanks. I heards stock is about 145l

7 eleven

Ya there are two versions of both the 190 and 255. a "normal" and a high pressure version. the only real difference is the bypass on the "high pressure" is set to lift at a higher pressure. For our uses (60psi and less) they both flow the same rates so it doesn't matter unless you use a high rising rate regulator.

So yes the Eagle one will work as good as any other 190. I saw the 140l ish numbers being tossed around for the stocker, but could not find a source for the information.
Gary

spazpilot

iTrader: (2)

I think the part number is the Walbro GSS250 here is also a link about flow rates on these pump.


http://www.autoperformanceengineerin.../fuelpump.html


Spaz

12SecZ

Ordered,

I'll advice when all is said and done.

Thanks

Sharif@Forged

iTrader: (92)

Yeah...let us know how it works. Thanks!

350Now

If the 190LPH works then we have an alternative and can run this using the factory FPR. Keep us updated Max. Thanks in advance.

12SecZ

No problem, it was only 5 bucks UPS ground so it will be next week or so but I will share my experience, Nissan will do the install since they already know about fitment and other issues that arose when I tried the SARD 290L.

ether

12SecZ, do you have a fuel pressure gauge, interested to see if the 190l will work with the stock FRP and maintain a constant FP across the board..

12SecZ

Hi Ether,

I don't really want to stay at say 11.5 "across the board" I don't understand why others due either. I have stayed out of that debate.

It rises as I go higher in open loop which gives me more power as the rmps increase. Wouldn't I lose power if the rpm's kept going up while I stayed that fat?

ATI specifies in the manual that 11.5 to 12.5 while staying under 800C in your exhaust temps is suggested. Of course I wouldn't want to be at 12.5 but 12.0 is fine with me I think some here are running too rich out of fear of the big bang theory hear last year

I want to be at about 11.5 to 12.0 at about 800 degrees max and right now I am 11.4 to 12.1 and I think it is just fine if kept cool and your timing is perfect which mine is via a reflashed ECU.

Perhaps someone can explain why I would benefit during racing by staying at 11.5 throught the race? As long as I am always under 12.0 I am ok and the highest I have ever hit was 12.1 at 9 PSI. I do have larger 380cc injectors and new fuel maps for open loop.

I was told the stock pump flows 145l and I think 190l might just be a sweet spot for me without major modifications like a new FPR etc. that is needed for the 255l. It can't hurt anyway but I will post results.

Thanks.

Max

booger

iTrader: (6)

Hey Max.....The guy that tuned my car....said that F/I cars should run A/F between 11.8 to 12.2 and thats what he tried to keep mine at .He has been around for ever and knows his $hit . Does any one think thats to high ?

12SecZ

Sorry,

I noticed you are talking about fuel pressure not fuel flow right?

Yeah I am interested in that too. Let's hope!

I typed all that for nothing. You are talking about the pressure right so what number would be good around 50?

12SecZ

Booger,

I would feel comfortable with those numbers with an oil and tranny cooler and the correct timing but that is just me.

I have been running 12.1 for thousand of miles and trips to LA and racing and my engine is fine.

Sharif@Forged

iTrader: (92)

Lot of people like 11.5:1 becuase it give just a little added margin for safety...in case you get a bad tank of gas...or its hot outside...or whatever. It is really personal preference.... As long as I am under 12:1, I feel pretty comfortable near redline.

ether

yup.. fuel pressure.. should have spelled it out, hopefully it works for you.. the only other one that might work is the nismo 160l unit.. wondering if that one does not over power the stock FRP.. from some fuel calcs, if the frp maintains a stock 54 psi the Nismo pump should flow enough fuel for a FI engine that is not targeting to make ridiculous amount of power

12SecZ

I'll keep that Nismo in mind and try it if this 190l causes issues. Let's hope this 90 dollar solution goes well huh? I am so close as it is 160 is like perfect but with larger injectors and my fuel maps it's all trial and error I think. I know that Danny at TS told me that I wouldn't need to reflash my ecu for a simple fuel pump swap it will just flow more fuel so this might be a good month in the end for my car.

Thanks ether.

350Now

bump

Hey Max, have you gotten your 190LPH fuel pump? If so, how are they?

12SecZ

I think I bought from the worst EBay dude ever. I paid on the 15th and after 3 emails he sent it out on the 21st.

It will be here Thursday, I have tracking. I will update after install!

1Z Y05 2A4 03 4014 825 9

EBay sucks.