sinistermotoZ28

Wondering if a Walbro 255 will support 500hp plus pulling fuel off the rail for 200 shot.

HCI2000SS

iTrader: (2)

Are we talking rwhp or fwhp?

sinistermotoZ28

Talking RWHP

HCI2000SS

iTrader: (2)

So roughly 700 rwhp then. Probably not

sinistermotoZ28

Yeah that's what I figured. What would be the best option? Bigger fuel pump or stand alone

dlandsvZ28

Since you have a 2000 the upgraded Racetronix 340 with wire harness along with the c5 filter/external fuel regular will handle up to about 750 rwhp.

http://www.ws6project.com/user_stor/catalog/product_info.php?cPath=235_84_396&products_id=8399

Do a search - lots of conversions using the single Racetronix RXP341 pump. This pump size (dimensions) isnt any bigger than the stock pump. You will have to remove the in tank regulator.

I'm in the process of installing it now in my Procharged LQ9 TSP 370. It's a nice kit - about as easy to install as my original Racetronix 255 kit with hot wire kit.

The WS6 can help you with both of these items. IMO it is cheapest solution for your needs compared to a dual pump setup - plus one less pump to contend with.

NHRATA01

iTrader: (10)

The 255 is good to 550-600rwhp, so you'll need to go bigger.

No expert but my suggestion having run nitrous (only a 150), either go with a standalone or convert it to a return setup from the rails with a rail mounted FPR. With a returnless and a 200+ shot I'd be worried about the fuel pressure drop when the fuel solenoid opens and getting an excessive lean spike.

Might be worth asking this in the N2O section for better advice.

dckmn52

Remove stock pump. Insert Walbro 450 for 110 dollars. Get the hotwire kit from Racetronix.

Problem solved.
Also I recommend not using the stock lines anymore. No point in forcing your pump to work harder than it needs to.