buying bigger jets for your NOS fogger set ups - Honda Prelude Forum

slp mode · 08-25-2003, 11:44 PM

Tried a search and came up empty, has anyone here bought bigger jets for there 51320 NOS kit. I think that's the number.
I am using the biggest pill right now, and am unhappy with the amount of power it's giving me, and I don't want to change kit's.

laughin2.2 · 08-25-2003, 11:54 PM

What is your question? You can buy any size jets that you'd like. Any good performance shop should have them.

slp mode · 08-26-2003, 12:00 AM

What's the biggest shot you could run safely without fuel upgrades on a dry fogger system?? Sorry.

axion68 · 08-26-2003, 01:41 AM

you might be able to get away with a 100 shot, but distribution would be my main concern on a single fogger shot.

laughin2.2 · 08-26-2003, 06:36 AM

I wouldn't go past a 75 shot without a larger fuel pump.

slp mode · 08-26-2003, 08:28 AM

a 75 shot to the wheels or the crank?

eu4ik · 08-26-2003, 10:30 AM

ive got an 80 shot, which dynoed at 55whp and its workin out fine. im not going any larger till fuel pump arrives.

laughin2.2 · 08-26-2003, 12:16 PM

Quote:

Originally posted by slp mode
a 75 shot to the wheels or the crank?

I mean an actual 75 shot, not hp. If your fuel pump is on its last leg then you could have some serious issues. If you want to run a 100 shot then you could get a WBO2 and see if teh fuel pump is keeping up. However, dyno time is pretty expensive and a walboro intank pump is under $100. It's pretty much a no brainer.

eu4ik · 08-26-2003, 02:45 PM

cheapest walbro 255 i found was 109. free shipping too. its too cheap not to go ahead and get
http://www.lightningmotorsports.com/walbro.htm

laughin2.2 · 08-26-2003, 03:24 PM

lightning sells the 255 for 89 shipped if you are an H-T member.

slp mode · 08-26-2003, 07:49 PM

How would just getting a fuel pump help, I mean is it just ensuring that you have a good pump or does it actually pump more fuel, but the ecu will only let the injectors give so much right? I'm a little sketchy on this area so bare with me.

axion68 · 08-26-2003, 07:52 PM

eu4ik is looking at a higher output pump. The stock fuel pump might not be able to pump out enough fuel that is needed, causing the fuel pressure to drop and the motor to run lean. A larger fuel pump will keep the pressure steady and be able to push more fuel at the same pressure.

laughin2.2 · 08-26-2003, 07:54 PM

The dry kits trick the fpr into forcing more fuel through the injectors. Now if there isn't any more fuel to force through the injectors then you have a problem. This is where the larger fuel pump comes into play. It ensures that there is always adequate fuel sitting in the fuel rail.

slp mode · 08-27-2003, 08:01 PM

What does that do to gas mileage? Will I need to have my vafc retuned?

laughin2.2 · 08-27-2003, 08:59 PM

Your fuel pressure will increase with the addition of the fuel pump so you'll need an adj. fpr and your VAFC retuned. I'm running the 255 lph pump @ 40 psi untuned and I can still almost make it to Wichita Falls, TX on one tank of gas(5.5 hour trip via interstate). I didn't notice a decrease in fuel economy.

slp mode · 08-28-2003, 07:42 AM

Great to know thanks bro