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Old Oct 20, 2011 | 11:09 PM
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Is it really recommended to change my fuel pump if am going wht 150 shot of Nos. Thanks guys.
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Old Oct 20, 2011 | 11:13 PM
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Yes!!!

My car leaned out on a 100 shot.... I didn't have any damage done to my car but the sec I found out I stop running the car until I got a new one...


I went this route

http://www.racetronix.biz/customkiti...RFPK%2D001&eq=

Last edited by SSHAWK; Oct 20, 2011 at 11:29 PM.
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Old Oct 21, 2011 | 08:49 AM
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Personally on a 150 shot I would swap it out. Once you truly hook a 150 shot you are only going to want more. Buy a minimum of a racetronix 255 with hotwire kit. Many of us are spraying over 300 with this setup.
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Old Oct 21, 2011 | 04:53 PM
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What all is done to your car? Regaurdless with a150 shot you need to upgrade the fuel system but the question left open is how much power total?

The racetronix is good for up to about 650 rear wheel on most applications.

Dave
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Old Oct 21, 2011 | 09:08 PM
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I'll disagree with the 650...
I'm 525 to the wheels... And on a 100 shot, the racetronix kit couldn't keep up...
I was ok on the drivers side, and lean on the passenger side by 2 whole points...
Enough power to get to my drivers side, just not enough to keep up with both sides of the stock fuel rail...
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Old Oct 22, 2011 | 10:00 AM
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is there a bigger in-tank pump out there that keep up with a 300 shot?
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Old Oct 22, 2011 | 10:15 AM
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Check out nasty performance...
Stage 3 street kit...
Double in tank fuel pump...
Good to well over 1000 rwhp.
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Old Oct 22, 2011 | 10:57 AM
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thanks!
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Old Oct 24, 2011 | 10:36 AM
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Originally Posted by n2ols1cam
is there a bigger in-tank pump out there that keep up with a 300 shot?
Depends on how much your base HP is.

Our DW301 should be able to get you well into the 700s at 4 bar base fuel pressure. ...and more than that if you are using a 3 bar base.
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Old Oct 24, 2011 | 11:31 AM
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Originally Posted by deatschwerks
Depends on how much your base HP is.

Our DW301 should be able to get you well into the 700s at 4 bar base fuel pressure. ...and more than that if you are using a 3 bar base.
300 Liters per hour should be enough to get most NA people up to a 50lb-55lb injector...ish...
and should get most people into the 750 crank horsepower range safely...

sounds like a good option to me for most application...
might be a little on the Low side for a 300 shot on an already modded motor though.
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Old Oct 24, 2011 | 12:08 PM
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That's with the fuel pump seeing 13.5V, too.

Bump it up to 16V or 18V, and you'll get quite a bit more.
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Old Oct 24, 2011 | 03:25 PM
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I have DW pumps on my car great pumps..
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Old Oct 25, 2011 | 01:18 AM
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Originally Posted by soundengineer
I'll disagree with the 650...
I'm 525 to the wheels... And on a 100 shot, the racetronix kit couldn't keep up...
I was ok on the drivers side, and lean on the passenger side by 2 whole points...
Enough power to get to my drivers side, just not enough to keep up with both sides of the stock fuel rail...
So should I go with a racetronix? All probably be pushing the same amount of power with n20.
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Old Oct 25, 2011 | 10:11 AM
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Originally Posted by soundengineer
300 Liters per hour should be enough to get most NA people up to a 50lb-55lb injector...ish...
and should get most people into the 750 crank horsepower range safely...

sounds like a good option to me for most application...
might be a little on the Low side for a 300 shot on an already modded motor though.


Originally Posted by deatschwerks
That's with the fuel pump seeing 13.5V, too.

Bump it up to 16V or 18V, and you'll get quite a bit more.


i have a aeromotive 340 stealth with a hot-wire kit, how many volts will it put out with a hot-wire kit? and will it support a 300 shot? thanks guys!
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Old Oct 25, 2011 | 03:21 PM
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The hotwire kit is intended to supply the electric system's voltage to the fuel pump. So it should be able to provide around 13.5-14V to the fuel pump.
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Old Oct 25, 2011 | 03:36 PM
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Originally Posted by deatschwerks
The hotwire kit is intended to supply the electric system's voltage to the fuel pump. So it should be able to provide around 13.5-14V to the fuel pump.
so with my pump and 13.5-14 volts will that support a 300 shot?
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Old Oct 25, 2011 | 03:41 PM
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What is your base HP before the N2O?
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Old Oct 25, 2011 | 04:16 PM
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Originally Posted by deatschwerks
What is your base HP before the N2O?
453 rwhp
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Old Oct 25, 2011 | 04:33 PM
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You are going to be pretty close to the edge, I would imagine. Be careful when tuning, and make sure you are where you need to be AFR-wise.

Your 300 shot a whp or crank estimate?
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Old Oct 25, 2011 | 04:58 PM
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Originally Posted by deatschwerks
You are going to be pretty close to the edge, I would imagine. Be careful when tuning, and make sure you are where you need to be AFR-wise.

Your 300 shot a whp or crank estimate?
im hoping between 700-730 rwhp
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