Alternative Turbos similar to an RS2 ?

[Dan]

So who do we have running Hoffer hybrids at the moment? Are we going to see a couple at the MRC dyno day?

If so, then we can let the numbers do the talking.

[Billman]

The only way a KKK-hybrid turbo can be compared with newer design is if the used new BW wheels from new diesel turbos and not the K26/27 weels that where similar to the SQ turbo.

BTW, who is Hoffer?

[Thuppu]

BTW, who is Hoffer?

hoffer76?

[prj]

So who do we have running Hoffer hybrids at the moment? Are we going to see a couple at the MRC dyno day?

If so, then we can let the numbers do the talking.

Dyno is only half the truth - it's not that easy to get real-life ramp rate of the turbo on the dyno.
If you want real-world ramp rate, you need to use the real world
Meaning MAP vs RPM log on the road, or G-force vs RPM.

Also, gearing is fairly important in real life tests. As can be seen from 700 rpm difference in boost threshold between 3rd gear and 6th gear.
This obviously assumes that engines are in the same state of development, since charge pressure is just resistance...

[Dan]

Dyno is only half the truth - it's not that easy to get real-life ramp rate of the turbo on the dyno.
If you want real-world ramp rate, you need to use the real world

I concur. However, dyno is immensely more accurate than speculation.

[prj]

I concur. However, dyno is immensely more accurate than speculation.

Amen to that.