fueling questions

[jerzey908]

first of all i got a itr and i just bought skunk2 pro 2 cams with the valve train. just woundering if i should go ahead and up grade my fuel system. I am going to be running hondata s200. i also got rc440 intecjors and walbro 255 fuel pump. just wounder i that is too much for what i am going to be runnung.

[xbn83]

http://www.rceng.com/technical.htm

[xbn83]

From importbuilder

Do not buy a fuel pump for your car unless your car meets these criteria. First, your car is over 300 Wheel Horsepower. Second, your car has an FMU (Fuel management unit) that comes with some turbo kits. It raises the fuel pressure on your car per each pound of boost, and your stock fuel pump won’t work. That’s it. Don’t buy a fuel pump unless you meet these 2 criteria. And if your forced to buy one, always get an in tank one, never an inline one that goes into the engine bay. Those are dangerous and should be avoided. The goal here is we want to keep the fuel system completely stock. Avoid the ridiculous fitting nightmare and the steel braid lines that come undone frequently, leak, and that cost a fortune. They do nothing but create problems. Stock doesn’t have any problems, so take advantage of it.
a. Always upgrade your injectors when you need more power, not your fuel pump. Generally, if you’re under 350 WHP you can get away with RC 550’s, fewer than 300 you can use RC 440’s, and fewer than 220 you can use RC 310’s. Stock Honda injectors from say a GSR or B16A can only make in the high 100’s with a fuel pressure regulator and it’s not recommended. RC 310’s are your best choice with a fuel pressure regulator if you don’t have management. You can turn down the fuel pressure until your air fuel is good again. With management, say Hondata, www.hondata.com it’s smart for any all motor car to get RC 440’s. Not 310’s. The 440’s can handle a turbo later, or can handle a much larger HP number if you go that way. They also have a way better resale demand and price used.

[dickdragon]

very educational

[jerzey908]

i am not turboing my car. just got cams and valve train!!! but nice info

[xbn83]

You don't need to upgrade fuel system, just bigger injectors is fine, no need for fuel pump. You are not pushing that much.

[scttydb411]

if you already have the walbro intank, use it. it's not necessary, but it'll be better than stock. the stock one can flow enough for what you're going to be doing especially since you're upping the injector. the injector is larger than what you need, but will be fine as well.

i'm a hondata tuner/dealer...let me know if you need any help.

[jerzey908]

should i get a fuel pressure regulater

[xbn83]

I think you should, make it easier to tune.

[jerzey908]

which is the best king of fuel pressure regulater that will not kill my pocket.

[scttydb411]

fpr is not nec. it's only really only nec in your situation if you're trying to up the fuel pressure to extend the use of an injector that isn't large enough. if you do end up getting one make sure you get a fuel pressure guage as well.

personally i wouldn't spend the money in your situation. stock fpr is fine.

[jerzey908]

so, if put in my injectors and fuel pump that will be enough for what i am trying to do. so, there is no need for a fpr.

[scttydb411]

that is correct

[Mr2raceworks]

injectors are all that is needed

[jerzey908]

will my stock injectors work with hondata.

[xbn83]

They will but you might max them out.

[USDM CTR]

i would run 310cc

[scttydb411]

for your original posting you need:
fuel pump
larger injectors
socketed/chipped ecu and tuning on hondata or crome

stock injectors will max out especially if you don't run the walbro intank 255. you need to run the intank so if you're hitting 190+ to the wheels the pump doesn't max out. the larger injectors will compensate some, but you'll still be maxing out the pump and starving the flow to the injectors.

[Turbodude06]

Wouldn't it depend on what car its in??? Like a type R would have a bigger pump then a dx civic, right?????

[scttydb411]

if i remember correctly the type r pump is 190 or smaller. why risk it when he already has the walbro and also if the pump can't flow enough while tuning you're out $$ and still have to retune when the new pump get's put in.

always build beyond what you think you are going to need.