My sleeper

[V6quattro]

I have 600whp on 1300cc ev14@ 3.6bar base pressure (2.3bar boost) and 95% jutycycle on e85.

[diesel des]

Is this e85 or petrol. Seems odd that you need so much fuel. Are the injectors tested to prove flow rate?

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[hammer]

Yes i adjust Bit more because the injectors on the small side. On idle i have ~0.2 vacuum

[diesel des]

Is this pressure measured in the fuel rail?

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[hammer]

It does sound high base pressure. I'm wondering if the vacume hose that runs from the fuel pressure regulator to the intake manifold is missing or blocked or something. Or the regulator is stuck. This would give 4.5 bar fuel pressure at all times and so a 2 bar boost you only have 2.5 bar fuel pressure to force fuel in so the injectors are working hard?

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No, on 2bar boost fuel pressure is 6,5bar or Bit more. I look at it

[diesel des]

It does sound high base pressure. I'm wondering if the vacume hose that runs from the fuel pressure regulator to the intake manifold is missing or blocked or something. Or the regulator is stuck. This would give 4.5 bar fuel pressure at all times and so a 2 bar boost you only have 2.5 bar fuel pressure to force fuel in so the injectors are working hard?

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[Thuppu]

Hmm, quite high idle fuel pressure..? You car makes vacuum under idle I suppose?

Ooh, des had already explained...

[diesel des]

4.5 bar at idle isn't important. Its the pressure on boost that's important. If you inlet vacume at idle is about -0.5 bar and you have 4.5 bar fuel pressure then your base pressure is 5bar. So at 2 bar boost you should have 5 bar base plus 2 bar boost = 7 bar fuel pressure. That's a lot.

You can confirm your base pressure by leaving engine off but running the fuel pumps. As intake pressure is 0 bar then you can accurately read base pressure.

Buts it's pressure on boost at max power that's important. You need to measure that. What's your fuel pump setup.

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[hammer]

Have you measured fuel pressure while sump testing at 2 bar boost? In this case you should have 4.5 bar base pressure plus 2 bar boost so 6.5 bar total. Is this what you found? Your injectors should easily flow enough for that power level so something must be strange.

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Yes 4,5bar fuel pressure at idle.
600hp on the wheel, so on the engine it should be over 700?
But i just now the wheel Power.

[diesel des]

Yesterday i was on the dyno. Take a earlier Meeting.
With some issues, my breather in the downpipe make so a high vacuum that it filled my exhaust with oil. I change it and close the holes in the downpipe.
Also bring the oil to min.
Next prob. wos my China wastgates witch do what they wont. See that the Membran was to big,so it goes to strong for the First 5mm and it lost to much air. Change them to orginal Tial and also test a other Regulation witch works up and down.

Left the Clone and right the original

And my new one
After finished it and make a warmup run it beginns to smell like Petrol. As i look to my catchtank i saw that it have a hairline crack.
So this wos the end of testing.

Only results that i have is 530hp at wheel with 1,6 bar, highest torque at 5300rmp.
600hp at 2bar boost with 80% duty😣 and this1600cc injectors with 4,5bar fuel pressure!
So i dont now what i should do. Dont wont bigger injectors because the cold Start is a Horror.
Thinking about 10 injectors, but this means many work again....

Have you measured fuel pressure while sump testing at 2 bar boost? In this case you should have 4.5 bar base pressure plus 2 bar boost so 6.5 bar total. Is this what you found? Your injectors should easily flow enough for that power level so something must be strange.

Sent from my LG-H955 using Tapatalk

[hammer]

Yesterday i was on the dyno. Take a earlier Meeting.
With some issues, my breather in the downpipe make so a high vacuum that it filled my exhaust with oil. I change it and close the holes in the downpipe.
Also bring the oil to min.
Next prob. wos my China wastgates witch do what they wont. See that the Membran was to big,so it goes to strong for the First 5mm and it lost to much air. Change them to orginal Tial and also test a other Regulation witch works up and down.

Left the Clone and right the original

And my new one
After finished it and make a warmup run it beginns to smell like Petrol. As i look to my catchtank i saw that it have a hairline crack.
So this wos the end of testing.

Only results that i have is 530hp at wheel with 1,6 bar, highest torque at 5300rmp.
600hp at 2bar boost with 80% duty😣 and this1600cc injectors with 4,5bar fuel pressure!
So i dont now what i should do. Dont wont bigger injectors because the cold Start is a Horror.
Thinking about 10 injectors, but this means many work again....

[hammer]

Thanks

[V6quattro]

Good work on the engine and good luck next week!

[hammer]

Today i was on the dyno. But today we not get them ready.
I had some Problems with the Hot downpipe and with tps.
Next saturday we finished them.

[hammer]

i think he said, that rpm is so high because of his aggressive cams..

1. the weight from crankshaft+flywheel+ Front pulley and scondary cams.
Today i adjust idle and have ~1100