Any 8474 dyno results out there? interested to see how the powerband looked like on Evo 8 or 9.

 

If you go back a few pages, R/TErnie's results were posted.

 

@letsgetthisdone thanks, found it! i am interested in this 8474 setup even more, hoping to get full spool at about 4000 with the Turbosource variable AR turbine housing.

 

Bringing this back from the dead. Has anyone gotten the Turbosource variable AR turbine housing and done any testing?

 

The new Borg-Warner EFR 8370 was just released. It's the 8374 compressor wheel with the 7670 turbine, which is a bit shocking, considering a few people said the 7670 turbine was tapped. This looks like the same idea as BW reducing the turbine size on the 9280 to make the 9274; while it was done for turbine safety purposes, if the 7670 turbine can support it, it's basically a faster spooling 8374.
https://www.full-race.com/store/borg...efr-8370-turbo

 

A EFR8370 would be similar wheel sizing to a GTX3582; 82mm compressor exducer and 68mm compressor inducer. Everyone knows the GTX3582 is quite capable. The EFR 70mm inducer turbine is not as efficient as the 68mm GT(X) inducer turbine, but it should still be a decent pairing.