OverblownZ/28

Just wondering what you guys are running in the 98 to 02 f body camaros with forced induction. I am hoping to make roughly 1000 whp and I would like to find an easy solution. Anyone running twin walbro 480s in the stock pump housing?

ws602

iTrader: (2)

Squash performance

F110Mech

iTrader: (2)

I plan on running twin Walbro 465s in the stock bucket. There's a write up somewhere in this section. That should support 1000rwhp with no problem

Orr89rocz

iTrader: (13)

Overkill

Twin 255's work just fine to 1000
340's give you alittle more room

On gas that is. Alcohol/e85 different story

Kmspeedie

iTrader: (1)

no such thing as overkill.. if youve swapped pumps you know u only wanna do it once, and you always wanna leave room to grow. Plus the price difference in pumps is minimal.. the best on the market which im running and researched about is the squash dual 450 walbro's e85 capable.. build your fuel system to handle more than you wanna make.. and if 1000wheel is your goal you will obviously keep pushing the envelope so go dual 450's

Rise of the Phoenix

iTrader: (27)

I know with the Squash dual 450's setup, or any of the Squash dual pump options, an external fuel pressure regulator is required, but what about the rest of the setup (fuel lines, rails, etc.)? What all does your fuel system consist of?

IronBlocked

Magnafuel 4303! 1000+ on e85

SPRAYED 01

iTrader: (22)

Here is my fuel setup thats been on the car for 5 years and never had any issues. Im at 900whp but if you swap out my old 255s for some 450's you would be all set.

Loonies Dual walbro 255s in stock bowl/sender.

Stock feed line and factory evap line turned into the return.

Aeromotive external boost referenced regulator.

80lbs high impedence injectors

I use 93 octane and meth injection. The meth is not needed to keep up with the power, the fuel system alone is fine with my levels.

Orr89rocz

iTrader: (13)

Guess it depends on budget and size of those pumps. If same price and size then ok get them. If they fit like **** or are hundreds more, then why??? Makes no sense

And fyi i can drop tank and change pumps in less than an hr if i needed to but 5 years of running dual 255, never had to drop. 1000whp on pump gas thru a loose th400.
You dont need a naval gun to kill a deer...

Rise of the Phoenix

iTrader: (27)

This sounds like a very capable and reliable setup, which would not cost very much to do. I like it. Do you have a build thread related to this?

Nasty N8

iTrader: (33)

The stock lines are no where near enough to keep those pumps happy. And the evap system is very good setup please leave it intact. Please give me a call I wi be happy to help spec it out for your needs.

http://www.nastyperformance.com/shop...02-ls1-f-body/

http://www.nastyperformance.com/shop...age3-line-kit/

Atomic

iTrader: (37)

Dual walbro400s and 96lb/hr injectors would support 1050rwhp up to 30psi of boost with a referenced regulator. The 400s are about the same price as the 255s.

You would also have about a 3psi pressure drop if you keep the stock feed line, but you have plenty of pump to overcome this. Moving to a -8an feed you would have about 0.5psi of pressure drop.

You would have to run 80lb injectors up to a 90psi base pressure to be able to support 1000rwhp, not recommended.

01transampower

iTrader: (9)

https://ls1tech.com/forums/forced-induction/1724884-dual-walbro-450s-stock-bucket-complete.html

Here's a right up from a guy on here with two 450's in the stock bucket. I plan on doing something very similar with mine or the same thing.

SPRAYED 01

iTrader: (22)

I dont have a build thread sorry. Im sure larger lines would be good but I have had this setup using the factory feed and factory evap as return for probably 20k miles, a million dyno runs and hundreds of track passes. It seems to work perfectly.

One thing I forgot is a run a hobbs switch that kicks the 2nd fuel pump on after 4psi boost. Every oil change I just switch which pump runs all the time by swapping the jumper in the harness, takes about 3 seconds.

Alex

Rise of the Phoenix

iTrader: (27)

So if you were able to do this, it would save you quite a bit of money over say the Lonnies or Squash dual pump setup?

01transampower

iTrader: (9)

Basically I'll have the costs of just the pumps and hotwire kits. Then your normal fuel line and fittings. I haven't set mine up completely yet but I'm running both my 450's at the same time. I'm not gonna worry about a Hobbs switch not kicking on while getting into boost. Not worth the risk to me. I will utilize the factory outlet in the bucket for one pump and the other 3/8 piece used for a return as my other feed outlet. Cap the center evap port and just tap the tank for a return.

OverblownZ/28

Interesting read. Thanks for the feedback guys. I think I am just gonna bit the bullet and by a squash or lonnies setup. I already have the 1100 cc injectors. Does anyone know if the 02 camaro has a metal tank? If so, then I will just sump the stock.

F110Mech

iTrader: (2)

Only 98 was metal

OverblownZ/28

Thanks!