White Lightning's new engine break in on the engine dyno/turbo testing!

[N2BRK]

Good man :thumb:

 

[PureHybrid]

I'm guessing you are about the 65mm Stg2LLy versus the BMW3794Stg2? To answer that it is the exducer of the compressor being 4mm bigger on the 3794va. I think on a stock motor with normal sized injectors the differences would be more pronounced but my 15.5:1Comp with big cam and heads and fuel is definitely messing with the numbers some!

Correct. But for the price difference even the 2.5 stg2 LLY turbo isn't far behind. How much of an increase could one expect going to the high flow vanes? Or is there no advantage on a single turbo?

 

[MarkBroviak]

Correct. But for the price difference even the 2.5 stg2 LLY turbo isn't far behind. How much of an increase could one expect going to the high flow vanes? Or is there no advantage on a single turbo?

That's definitely on my list of things to test in this situation back to back but it will be at a later date. Yes it's better than stock because of flow vs. angle of attack.

 

[Dozerboy]

DP BMW GT3794Va Stg2 (65x94MM Comp)

Tune1 485hp 845ftlbs 26psi 1460*

Tune2 550hp 950ftlbs 29psi 1650*

Tune3 580hp 102ftlbs 31psi 1700*

Tune4 651hp 1184ftlbs 35psi 1750*

Tune5 682hp 1312ftlbs 36psi 1750*

:

I thought this turbo was good for 40psi? Did you think you have more left in it or its the 36 psi due to your engine build flowing more?


Sent from my SAMSUNG-SM-G900A using Tapatalk

 

[moparkxracer]

Nice videos of getting the kids involved. Can’t wait to see the truck again in person

 

[MarkBroviak]

I thought this turbo was good for 40psi? Did you think you have more left in it or its the 36 psi due to your engine build flowing more?


Sent from my SAMSUNG-SM-G900A using Tapatalk

Yes it is, I didn't change the tuning for the turbo. It was still set up for the stock turbo so vane position was dropping all the way to 0% on it. I have seen as much as 42-45psi with this turbo with the correct setup. Motor setup is definitely changing this info also as all the turbo combos made the most boost at 2,000-2,200rpms and fell off as the rpm went up.

 

[The A Team]

Great info Mark, keep up the good work!