Any updates?

 

None to report. The only mods that will make more power are bigger cams and a different intake manifold. That wont happen for a few reasons-

1- Car is a road race setup now so balance between response and peak power is more important. Luke races around 23-24psi on E85, 445-450whp nominal.

2- Luke wont be running Q16 at any event (534/514 was on Q) either.

3- Parts cost money even for shops. We put the car together for Luke with all the spares in the shop that we couldnt sell. S1s are smaller than most of our customers want and we have a bunch of stock intake manifolds.

This turbo is definitely capable of more, we just wont be the ones to push it to the limit. I believe Curt Brown made 570+ on it on a large spike though. He uses E85, ER SD tuning, S3s, BR2.3RPM (10:1), Skunk2 Intake, and I want to say a 39psi spike.

Aaron

 

I thought Curt's numbers were on the non BB version?

 

they are.
Going to BB should not change top end power or boost threshold, only transient response and durability.

 

exactly

 

Thank you!

 

Assuming that the BB user does not spin it another 20,000 RPM higher than the journal bearing version

 

Any updates?

 

Luke put 202 track miles on it in one day and its still kicking

 

even considering response, isnt 23-24 psi pretty low? i ran 25psi on the stocker

 

Did you run the stocker at 25psi for 15mins straight in 4/5/6th gears?

 

24psi is 448+whp which is more than enough for a track car on 255s. I know that your 25psi on the stocker wasnt close to that. We still have the traction issue of the 448whp AND the heatload to deal with for a full lapping session.


20 min sessions

I know what you mean though

Aaron

 

Yep, no way you want it even close to max efficiency zone for road-racing.

 

Do you have to run FPs oil line with this new turbo? I know you need it for the red and black

 

We did on this one as well, Robert was very insistent on that.

Aaron