I run one with a 150 shot becouse of maxed out racetronix pump. The beauty of a standalone is that you wont have the leanspike you have with the intank pump with no return. Def alot easier on parts and tunning.

 

I was thinking of using one on my car for this reason. You guys running bigger cid engines and 150+ shots, do you run into any issues with your fuel pressure dropping a lot, or maxing out your fuel rails/lines? I am running a walbro255, but I have heard that the stock fuel rails and lines from the tank to the rails becomes a restriction at roughly 600 rwhp. I am alreay making 500 rwhp NA, so I was thinking that a standalone would be the best way to add fuel when I am spraying as much as 200.

 

I am making a bit over 500 rwhp N/A and the car would go lean on as little as a 75 shot,I added a NO standalone and now can hit it with as much as I want.

 

Do all intank pumps make that happen? or is it the return line?

 

So then are most of you guys on stock block then?

 

off topic . . do you like the cam you're running? (stats are close to one Im looking into purchasing)

 

Dont know yet lol, car is finished in 5 days I'll know then

 

race gas is cheap insurance as opposed to a new motor. stand alones def have their advantages. especially when you start making some power. and def on a bigger shot. you dont want to suck all that fuel out of the drivers side of the rail. and an in tank 255 pump is only going to support so much power. for what it costs to upgrade the fuel system in the car you can build or buy a dedicated and make life simple. and then run race gas in the cell.

 

agreed but i think his point was that it is just a waste of money and time to be so cautious with such a small shot. i've sprayed a 250 all day long with no issues on a 255 in tank racetronix setup. i also have a dedicated fuel cell that isn't finished for when i go on a big 2 stage setup. when in big power i will agree, why risk it and its a cheap alternative.

 

hes building a 440......he needs a standalone. or a lot more intank pump.

 

I throw a touch of 116 in with pump gas on my 75 and 125 shots. It's just not worth my motor to me. I hear all these local boys bitch and moan around here saying their **** knocks on the "bad" pump gas around here....again its not worth my motor.

 

Sorry for the but yes i definitely need a stand alone.

 

ive got the 255 walbro and the 42 # injectors and spray a 150 shot no problem..pretty sure its about maxed out though

 

My HSW stanalone is damn good insurance, and I dont loose any timing on my NA runs

 

I spray a 150 shot without a dedicated fuel system. I have a 255 intake, and the motor makes around 410 with stock injectors.

 

i would also reccomend a fuel pressure saftey switch just for any reasone pump goes out and the car is still dumping nitrous in

 

You can save some money "making" youre own standalone kit.. as I did if you got some minor fabrication skills..
Basically what you will need is.. Holley low pressure "Black" pump, adj. FPR, low pressure fuel pressure safety switch. a bunch of fittings, 3/8 or 1/2 fuel line.. about 12 feet of it. I dropped the tank, cut a 3/4 hole in the top near the big hole for the sending unit and fuel pump.. flared a tube and connected a 90 to it, rtv'd a rubber washer to seal top and bottom against the tank and tightened the whole assembly.
Basically made my own pickup tube for the holley to feed off of.. piece of cake.. no need to buy big expensive pumps and all this "jazzy" crap.. we've been running nitrous this way for Eons.. Might be tho old way of doing it, but its tryed and true.. Only downside to this setup is that if you want to run racegas through youre nitrous, you have to run it through youre motor as well.. Wich I dont mind at all.. If yall want pics, I got em

 

i like that idea. i wouldnt do it because i run 2 diff types of gas but i like the idea

 

........

 

the money you save on race gas alone is well worth the cost of the stand alone, not to mention you'll save money on your fuel system. 1 gallon - 3+ track outtings, VS 5 gallons for 1 outting and the drive home. and when you SPRAY you know you're getting a good ratio of race gas to 91 or whatever. who knows how well its gonna mix in the tank.