Thanks. The only thing on the whole car that hasn't been upgraded is the regulator. It's just a stock one, non adjustable or anything fancy. Would that cause me issues with a higher volume or pressure pump? At one time this car was a daily driver and I'd like to use it that way. I might leave the nitrous setup but I don't see myself using it very often.Walbro 255L will do fine. The Carter you're referring to could very well be a rebranded Walbro. Your fuel system style is return style so the extra volume will not be an issue.
If you decide down the road to do any significant upgrades, you'll need that 255L anyway. I would opt for the High-Pressure version. They're slightly more expensive.
I use an OEM, Non-Adjustable fuel regulator too. KB blower and stroker setup. Nothing wrong with it at all.Thanks. The only thing on the whole car that hasn't been upgraded is the regulator. It's just a stock one, non adjustable or anything fancy. Would that cause me issues with a higher volume or pressure pump? At one time this car was a daily driver and I'd like to use it that way. I might leave the nitrous setup but I don't see myself using it very often.
I honestly have no idea if I need it or not. The car was built nearly 10 years ago and the guy said it had a 190lph BBK pump in it. There's really nothing stock on or in the motor. Allegedly it made 284hp to the tires without the nitrous but the previous owner hasn't gave me the dyno sheet yet for proof. It does/did run strong for a 302 until the pump started failing. Then it has a ZEX dry setup with 125 jet. I ordered the 255lph Walbro. The previous owner said anything over 190lph would be better than the car running lean if I used the nitrous. I'm going of him and all of you because I know nothing about efi.Do you actually need a 255 fuel pump? DO your mods support that much fuel? If not, i would use a pump more appropriate for your power level, otherwise all you do is circulate the fuel repeatedly while heating it up, and with stock fuel lines you will increase the pressure in the feed line before the FPR. This can stress all those fuel line connections, and rubber lines, which is an issue if this is all original parts and you aren't upgrading. Last thing you want to do is pop a fuel line off. If you are stock(ish) the most i would get is a 155.
I would only get a walbro, and not off Amazon as many fakes are circulating there
Only downside I can think of is they tend to be a little noisier. This may matter if you're a girl or something.There is no downside to running a 255lph. There is no significant heat from circulating fuel. Keep in mind that the car at idle recirculates almost all the fuel anyway. Saying that the car is going to have a problem with fuel heat is like saying a car that idles gets hot fuel.
Kurt
Haha. This pile has an off road X-pipe and Super 10s dumped before the rear axle. I can't hear anything! When I looked at the car I was wondering why it didn't have a radio. I found my answer driving it home. I'm definitely headed to an exhaust shop after I get the pump back in.Only downside I can think of is they tend to be a little noisier. This may matter if you're a girl or something.
Only downside I can think of is they tend to be a little noisier. This may matter if you're a girl or something.
I thought those were extinct.I have a T-Rex inline pump as well. Talk about noisy.
Kurt
More like obsolete. But I still have one, because back in the day that's how you got 95psi of fuel pressure. When it dies, I can throw a Walbro 340 high pressure in the tank. I'm glad we have options now.I thought those were extinct.
Myth. You can run 600hp through the stock fuel system with a Walbro 340lph, and when the engine is idling, it will be returning almost all the fuel back to the tank.Actually - there can be an issue with running more pump than you really need. Back pressure in the return line (smaller than the supply side) and inconsistent FP due to too much supply side pressure. Which can then lead to fuel aeration at the pump input due to forcing a cubic football field of fuel through a 1/4 return line that exits above the fuel level in the tank.
Don't guess, use this to calculate: https://raceworks.com.au/calculators/fuel-pump-calculator/
I never said that it wouldn't return the fuel. I said you could have inconsistent FP. Big difference. And there is zero benefit for over pumping. none.Myth. You can run 600hp through the stock fuel system with a Walbro 340lph, and when the engine is idling, it will be returning almost all the fuel back to the tank.
Kurt
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