High Flowed -7s Vs -9s

[djvoodoo]

Didn't Motive DVD (A Hawkins) R32 equipped with highflowed -7's (360 odd KW @ 24 psi) do an 11 sec flat?

[Hadouken]

Was that the 32 with hybrid turbos....

[No Crust Racing]

The same turbos that I got offered and started this thread..

We've come full circle

[djvoodoo]

Was that the 32 with hybrid turbos....

Yes, -7 housing with -5 internals. Motor was stock bar Tomei Type B's - Cam gears and a power fc.

[djvoodoo]

The same turbos that I got offered and started this thread..

We've come full circle

just re-read your first post. full circle indeed

[mr skidz]

-9's i reckon

[sneakey pete]

Yes, -7 housing with -5 internals. Motor was stock bar Tomei Type B's - Cam gears and a power fc.

-7 rear turbine -5 compressors.

[mr skidz]

-7 rear wheel is bit small tho to push a 5 wheel to its potential rpm.

Edited October 30, 2015 by mr skidz

[r32-25t]

There is less then 1mm difference between the -7 and -5 turbine wheels and even then it's only the exducer that's different. There won't be that much potential difference between them

[mr skidz]

No not much size difference but trim is smaller hence why it won't RPM enough for a -5 comp wheel.

I wouldn't reduce the exducer of a turbine if I'm looking for more flow from the compressor.

Edited October 30, 2015 by mr skidz

[mr skidz]

-9 is a simple proven thing just doesn't make any sense to play games with the turbo at that power level imo

[r32-25t]

If you want 330 then yes use a -9 but some of us want more but don't want the lag associated with the -5 and don't want a single, hence all these hybrids people are using now

[levinboy]

-9s ftw

[Hadouken]

I concur

[No Crust Racing]

How much further beyond 330 could -9s go on e85?

Head gasket risk territory?

[Hadouken]

Last tune I had 2 years ago was 340kw on stock dumps and skinny front pipe.

On the 14th I will see if it can be slightly stretched with HPI dumps and beffy front pipe. So Ill let you know how it goes with stock motor without raising the boost to "danger to manifold" level

[No Crust Racing]

E85?

[Hadouken]

yes

[mr skidz]

Danger to manifold?

[Hadouken]

FF reference for lols