83mm Turbine to small for Compounds?

TRUBBS · Nov 28, 2016

Just like the title asks, would running a 80+mm turbo as the LP turbo in compounds have to much back pressure/be over sped if it only have an 83mm turbine wheel?
Would you be able to gate enough around it to make it survive or would it still be to small and choke the flow to much?

Jonnydime · Nov 28, 2016

How much fuel?

TRUBBS · Nov 28, 2016

Jonnydime said:
How much fuel?

dual fullers and anywhere from stock to say 60% overs.

Jonnydime · Nov 28, 2016

I think my 82mm has an 85mm turbine and does just fine with 60's and I have no gate on that side I only have a gate bypassing the high pressure turbo feeding the low pressure.

TRUBBS · Nov 28, 2016

Have you ever hooked up a BP gauge to see what the ratio it? What are you running for a HP turbo?

White_monster · Nov 28, 2016

What A/R exhaust housing you planning to use. It should be fine with an 83mm turbine.

TRUBBS · Nov 28, 2016

White_monster said:
What A/R exhaust housing you planning to use. It should be fine with an 83mm turbine.

.96 T4 Housing.

Hoping it would still be able to spool quick for towing and still move a ton of air, as long as the hot side wasn't chocking itself out

Jonnydime · Nov 28, 2016

TRUBBS said:
Have you ever hooked up a BP gauge to see what the ratio it? What are you running for a HP turbo?

It's always 1:1 on the low pressure side. Wot ebp is 10 to 15 psi higher then boost. I'm running a GT4088R for a high pressure turbo. I still need to play with my gate some more.