allout06

iTrader: (11)

Ok, so im building my own twin in-tank fuel pump setup. I have a 99-02 style bucket setup. Well, i bought twin Walbro 450's, like the ones used on the squash performance setup. Come to find out, they will not fit in the stock bucket. Stupid me i guess. I spoke with andy over at squash, and he said that DW300's will fit in the bucket. So my question is, should i cut my bucket and run these, or just return them and use the DW300's. The DW300's are a 320lph pump, so 640lph total. shooting for 1000rwhp on 93/100% meth, twin turbo. The squash setup does not use a bucket, and he said they are coming up with their own bucket that will accommodate the twin 450's. But, it wont be out for at least 60 days.... Should i just wait? Id hate to drop another $4-500 to complete my fuel system..

I used this formula to figure my GPH i would need for my HP goal.. What do you guys think? (using a 25% drivetrain loss with a 4l80e/9")

Optimal GPH = (Max. HP x BSFC) / 6

so (1350fwhp x .75) / 6 = 168.75gph. 168.75gph = 638.7lph

So id be right at the end of the road...

Opinions.....Go.

jjcamaro02

iTrader: (34)

I'm not sure if you should cut the bucket. You could use the smaller pumps because you are also running meth. I would use two meth nozzles two pumps won't be working as hard them.

The Alchemist

iTrader: (19)

Forgive me for asking a stupid question, but in your equation, what does the '6' represent?

Krom

I'm assuming he is converting from lbs to gal

BSFC is usually lbs per hr per hp, and gas weighs about 6 lbs/gal.

allout06

iTrader: (11)

Honestly im not sure brien lol. I pulled it off a website.


Also, another option im considering is a nasty performance fabbed 14 gallon fuel cell with an internally mounted magnafuel 4303 pump. My tuner said he uses those pumps on the high HP cars. So if I go that route, ill return the alky control and go back to E85 as long as my injectors are up to the job. Ill call him on Monday and see what he thinks...

allout06

iTrader: (11)

Theres so much different info that contradicts each other online, im fed up with searching. Cuz one place says e85 is the **** and others say meth, some places say internal pumps, some swear by external. I hate cars lol

DEFYANT

Just give it to me then. If you have E85, run it. I would do an internal MP-4303 if you can.

allout06

iTrader: (11)

^ thats what that nasty performance fuel cell is. It has that pump mounted internally and works with the factory tank straps and it already has feed/return fittings. Also utilizes factory guage.

Cam72aro

iTrader: (28)

If you wanna drive the car and not be annoyed by a loud whine all the time go internal pumps. Do if your exhaust is loud, then it doesn't matter. There are many high powered cats running dual or triple Walbro 255's. I have 2 of them into a -10 feed line.

Cam72aro

iTrader: (28)

I had a nasty tank that was supposedly 15 gallons, more like 10. I got rid of it for a stock tank.

White Fire'99

iTrader: (15)

i completely agree. mind numbing

I8UR4RD

iTrader: (16)

i think the timing speaks volumes for E85 and its cause. The only thing I would personally rather run would be M5. E85 and meth...what could be safer.

allout06

iTrader: (11)

Heres the tank im looking at.

http://www.nastyperformance.com/shop...ing-fuel-tank/

I was prolly going to go ahead and get the extra external pump option as well. The 4303 is internally mounted so I shouldnt be able to hear it. My exhaust is pretty loud so it wont really bother me. I just dont want to have to worry about not having a fuel bucket.

DEFYANT

They can do DUAL in-tank MagnaFuel pumps.

Old Geezer

iTrader: (3)

A BSFC of .75 is way too high...

Cam72aro

iTrader: (28)

That's the tank I had. I ran out of gas, then filled it up and it took around 10.5-11 iirc. It's definitely not 15. I would do a stock tank with dual whatever you can fit in it.

2000RATA

That is the tank I have in my car with the MF 4303. I have a post on YB where I cut that mother f###er apart and added volume and helped the fuel sender that was a mile off, fixed the 2 leaks it had and quieted the loudest fuel pump noise I had ever heard. Here is the link http://www.yellowbullet.com/forum/sh...d.php?t=572083

98Camarod

iTrader: (43)

Mine was right at 13, but atleast they dropped it down to 14 gallons on the site. I got mine from a different source though.

Jax326

To get back to your question about the stock bucket and to cut or not to cut, from all the research I did for my own swap, the reason not to cut is that fuel its returned into the bucket keeping the pumps supplied with fuel especially during turning, cornering etc. The bucket is essentially THE baffle in an un baffled tank. I've read many complaints from people about how they lose fuel around a turn with say 1/4 tank or so with a custom tank with an internal pump because of insufficient baffling.
If you don't give a rat's *** about any of that then by all means cut the bucket and use what you've got, if it concerns you think about using the physically smaller pumps. Lots of guys making it work either way. Just weigh the pros and cons for you.

allout06

iTrader: (11)

Ya i know what its for. I figure as long as i keep fuel in the tank above 1/4, like you should any way, itd be fine. The squash performance dual kit doesnt even come with a bucket. Im going to get in touch with my tuner today and see what he has to say.

Ya, **** that tank. Im not using it after seeing that. Thanks

Ya its out of the question now i suppose. after seein what 2000RATA had to do..

I was just going by the intrawebzzzz... lol whats a good BSFC for a turbo app then ? .6? .65?