Jump to content
SAU Community

Recommended Posts

Walbro 400lph E85 Pump good enuff for 450kw on corn?

or this pump still having issues?

What issues do you mean? The early 416L weren't e85 compatible and used to fail quickly, which is why they released the 460L.

I have seen the 460L max out at 430wkw, and 450wkw. (as in afr's started to rise.) But that would be pressure and dyno dependent.

  • Like 1

Currently running 400kwatw on E 85 with a Bosch 044, looking for another 50kw atw but know the 044 must be close to maxed out. Will a walbro 450 in tank handle that ok, or are there better options, don't really want to lose more boot space to a surge tank as the car is my weekender. Running ID 1300's if that is any help. Any advice will be appreciated

I recently did 460rwkw on 98 with an 044 as my surge tank pump. It was maxed out. (24psi).

Jecs 1000cc's x 6

easiest solution without upgrading to a surge tank is to have an auto electrician install a step up transformer and run the pump at 16-20 volts. Bosch support 20 volts.

Running at that kind of voltage and you are going to increase the pumps output quite a bit without too much worry. I just wouldn't run under 1/4 if you're racing or getting up it heaps around corners etc.

Edited by The Mafia
  • 2 weeks later...

Got the car back from the build and had a look at the injectors , Paul suggested they could be the Sard 700cc, had a good look this morning and they look like the Sard 700CC , light blue top with a black body.

Decided to have the ID 1300CC installed before the final tune.

Using the Walbro 460Lt , it should be interesting to see how it tunes , if I ever need more just add another one.

I will ask the builder what Voltage is running the pump at the moment, this seems to be a problem if the set up is not good enough.

Have the Haltech R34GTR Pro , should help with the Haltech Flex fuel sensor should we ever get E85 here, But I can get it in a few places close ish (180Klms) or if I go to Sydney and should not have to worry about the mix.

Never stop learning doing this type of thing, guess there are plenty of mistakes to be made , but reading and listening to you blokes really helps, thanks :)

It really doesn't need to be 45 degree, if the end of the sock sticks out of the fuel it doesn't suck air, not until the inlet hole on the pump is uncovered anyway.

What pump are you running Peter? I have heaps of different socks here.

  • 3 months later...

My setup makes 435kw (I think) on e55 with the oem lift pump which feeds an undercar surge tank with 044...the 044 has become very noisy when it gets warm to the point where I'm not going to drive the car until I change it. Sounds like the ethanol has screwed it.

Now I'm either going to replace the 044 and add a 2nd 044 OR will look at an ethanol compatible pump as I want to run e85 for a final tune.

What are ppls thoughts? I'm tempted to run 2x044s under the car but the lifespan will be short once again I'd say. Maybe I can buy a second walbro 460ltr and run 2 of these under the car?

I was originally going to take out the surge tank and just run the walbro 460ltr in tank but I've been advised that might be risky with surge and also depending on 1 pump is not ideal.

Definitely don't get another 044 - mine has always been really noisy and I wouldn't get another. I can't tell you if an intank Walbro 460 would be enough on E55 but I suspect not. Since you already have the undercar surge tank I would plan on getting a more modern in-line pump (or two).

Definitely don't get another 044 - mine has always been really noisy and I wouldn't get another. I can't tell you if an intank Walbro 460 would be enough on E55 but I suspect not. Since you already have the undercar surge tank I would plan on getting a more modern in-line pump (or two).

You will find that the Bosch pumps are only noisy if they are restricted on the inlet. They have a large inlet hole for a reason and you shouldn't reduce that.

I've been told that feeding them properly makes them as quiet as a mouse.

You will find that the Bosch pumps are only noisy if they are restricted on the inlet. They have a large inlet hole for a reason and you shouldn't reduce that.

I've been told that feeding them properly makes them as quiet as a mouse.

Not really sure about being quiet as a mouse. I suppose everyone's idea of "quiet" may differ.

A single 460L Walbro in a surge tank will do 460wkw at least, as long as the pressure isn't too high. Try a 35psi base pressure before buying 2 pumps is my suggestion, or get a fuelab or similar turbine PWM pump.

Mike - are u running ethanol as well?

Is this why the 044 becomes noisy or are they inherently noisy pumps?

Paul - I might call Mark/Yavus and get their opinion...

Nope no e85, bp98 only.

It really doesn't need to be 45 degree, if the end of the sock sticks out of the fuel it doesn't suck air, not until the inlet hole on the pump is uncovered anyway.

What pump are you running Peter? I have heaps of different socks here.

My issue was that the old strainer (45 degree too) was so blocked up it physically couldn't pull fuel through (think 20+ seconds for the strainer full of fuel to empty out from gravity), so I think with a 90 degree sock it would still have the throughput issues. not to mention the actual elbow itself would raise the intake up by 40mm compared to the 45 degree sock.

Luckily, I found a 45 degree sock. 8 bucks from Global EFI, part number GS-046 (can probably get it form other pump shops also), hopefully that helps out someone in the future and avoids the fun I had tracking one down.

  • Like 1
  • 1 month later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • 15000? ish? Something like that anyway. It wasn;t so much a wear as a tear that then spread. Might have lasted a lot longer if not bothered by just one incident, whatever it was. I took a punt. They are really comfortable and do a good job of holding. My daughter HATED it when I first put them in, and probably still does now. She has sensory issues and hates the way they are all up your business. I'm 197cm and 95kg. Not fat or particularly wide, and the XL size seat is the rigth fit. If I was any fatter it would start to get too snug. Any skinnier and you'd possibly want the smaller width.
    • Mrs rs focus came factory with recaro cs  sportsters in it and they a pain in the ass to get in and out of with the really high bolsters, once you were in them they were one of the most comfortable seats I have ever sat in
    • The NA 2.5 has very little torque. You won't feel much. Those trannies are also a million years old now and it could well be f**ked. First generation electronically controlled autos will often refuse to kick down, ete, etc, depending on what's wrong with them.
    • Yes, but no but yes but no. Those "it's fine up to 500HP" rules and everything else like it were all determined back when the cars were 10 years old. As they are now 30 years old.....what do you reckon the chances of something shitting the bed are? I'd say they are much higher now than they used to be. You might be lucky. You might be unlucky. Spin the wheel and find out. Yeah, nah. It's actually exactly the opposite. Making boost early and having heaps of torque able to be generated right in the middle of the rev range will do more to damage an engine than having to rev it high to make the power. Think about the load on the conrods, bearings, etc, to make 400HP at 4000 rpm, vs 400 HP at 6500 rpm. So someone has already "let the Nissan out" which is how we describe the increased chance of a fiddled with engine to have had something done wrongly. Many more engines that have been opened die than stock ones do - even if you into consideration how they are treated wrt power levels and the like. Again, not saying that yours will definitely have been put back together by a moron. But the possibility does exist. It's still a lottery. Spin the wheel. What weakspots?
    • Sell it and buy a turbo version will make it a lot faster 
×
×
  • Create New...