In Soviet Russia car build YOU!
#1443
Stop being a bitch and embrace the whine.
Jokes aside though the e85 bullshit is nothing but a scheme to get more money out of people. The natural rubber in the 70s couldnt handle e85.. all the new rubber thats part synthetic handles e85 just fine. That said the stock fuel pump and the rest of the miata fuel system handles e85 just fine.
Jokes aside though the e85 bullshit is nothing but a scheme to get more money out of people. The natural rubber in the 70s couldnt handle e85.. all the new rubber thats part synthetic handles e85 just fine. That said the stock fuel pump and the rest of the miata fuel system handles e85 just fine.
#1446
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Do you have any actual numbers to back this statement up? All the data I have says the exact opposite - the Walbro pumps are the ones that lose flow at high pressure (80psi+). In fact, the data I have shows that the Walbro 400lph 39/50 pump flows the same as a DW200 does at 100psi of output pressure.
#1448
Do you have any actual numbers to back this statement up? All the data I have says the exact opposite - the Walbro pumps are the ones that lose flow at high pressure (80psi+). In fact, the data I have shows that the Walbro 400lph 39/50 pump flows the same as a DW200 does at 100psi of output pressure.
#1449
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What? DW got me an RMA # in like, an hour. They have a 3-year no fault warranty, at least on DW300.
I don't get the hate. Especially about the fuel pumps. When DW300 was released it was the best pump. Now that Walbro 400/416 are out, they are best.
I don't get the hate. Especially about the fuel pumps. When DW300 was released it was the best pump. Now that Walbro 400/416 are out, they are best.
#1452
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I still don't see data backing up your earlier statement ("the DW300 loses flow at higher pressure worse than the other options"). From what I can see, the DW300 does a better job maintaining flow than the Walbro 255 does, and a similar job to what a Walbro 400 39/50 pump does.
except aeromotive might stand behind their products better.
But the 240 liter/hour that you'll get driving an EV14 injector with a pressure differential it likes is not going to be enough to run ALLOFIT with a 6758 on e85.
Are you just trolling? Nothing you've said about this topic is true.
#1453
The math looks a lot better for 1300s, but depending on exactly what fuel pressure and boost you end up with maxing out the 6758 you are right on the bubble. And when fuel pump flow required = actual fuel pump flow you dont have enough fuel pump. Soviet already put it over 400whp on 93, e85 should put it near 450whp, 240lph really isnt enough fuel pump flow for 500 crank hp
#1454
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You want it mathematically proved to you? 88.1%DC on ID1000s at 60psi base pressure is ~950cc/min per injector, or 228lph of fuel.
If he did ID1300s, he could drop the base pressure 15psi AND run 10% less duty cycle, and the pressure drop would give him another 10-15% of headroom on the fuel pump.
You're confusing me by posting things which are obviously incorrect.
#1457
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As you can see its 229 lph @ 85psi/13.9V which is what I recall it was in datalog.
My fuel pressure sensor is at the fuel pressure regulator and I expect that's where it would also be in testing scenario - so loss of pressure due to fuel system restriction can be neglected.
229lph is 954cc/min, so I was running ALLOFIT for that pump.
#1459
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Read my post.
"My fuel pressure sensor is at the fuel pressure regulator and I expect that's where it would also be in testing scenario - so loss of pressure due to fuel system restriction can be neglected."