uvambo

iTrader: (8)

Actually I'm going to have to be a tease here. But it did win highest trap speed on Friday for Sedan class. On what I consider medium boost level at best.
I will give more updates as soon as I can

awhit17

iTrader: (6)

It's not that they overspin easily, it's that the wheels are more susceptible to damage from overspinning compared to most inconel wheels. If you monitor the shaft speed to keep it below BW's prescribed limits or don't try to push the turbo to its HP limits they will last a very, very long time

doncarbone

iTrader: (15)

Good to know, thanks for clarifying

JohnBradley

iTrader: (30)

Any footage takes awhile to get from the camera to the net. We drive to events so in this case it was 20-22 hours each way. Data is coming, motor is fine, dont worry about it.

doncarbone

iTrader: (15)

doncarbone

iTrader: (15)

any updates!?

uvambo

iTrader: (8)

Will post a video next week, car will be on the dyno this Saturday at the English dyno day. Sorry about the delay. Should get a nice comparison with the new 9174EFR that's on the car now.👍

doncarbone

iTrader: (15)

9174, what in god's name!?

thanks for the news!

evoxisking

spools like 8374 and makes more power, and more durable than 9180 at high boost

R/TErnie

iTrader: (32)

Aaron,
Are you guys logging pre-turbine back pressure on his setups? I'm interested to see what the 9180 does compared to the 9174 boost for boost. I would expect it to be worse...

uvambo

iTrader: (8)

Yes logging back pressure , will try post that also. And turbo shaft speed.

JohnBradley

iTrader: (30)

Unless Luke pulled it off the car saturday I dont have anything up to date. I believe I have the internal log from when I retuned the car in the heat a month or so ago however. I will look and see what I have. Shaft speed wont be crazy since its only at 32psi right now. It does make 736whp though, so thats cool

JohnBradley

iTrader: (30)

Spare pressure 1 is the backpressure channel. Knowing how it works though, 23psi at 32psi of boost sounds epic but it can easily exceed (and has) 1:1 by 40psi.

mrfred

iTrader: (50)

Could the headers be contributing to this?

JohnBradley

iTrader: (30)

Headers and downpipe both. Kevin noticed that the samller primaries were better for backpressure at lower P/r but became an issue above 45 or so on his. Normally we see this around 50 on the larger ID manifolds. On the ETS GTR going even larger on the primaries only helped improve power. I havent looked at the datalogs to see what the differential is though.