VF22 turbine modification

[mark1991]

 

[mark1991]

 

[mark1991]

So...

Currently running the standard size p20 housing on my VF22 (modified the same way)

But found on eBay mamba were making 304 P18 housings, these are believed to reduce lag on the Subaru by up to 450/500rpm

I believed the OEM flange would too bulky and the void where the wastegate penny is located to be causing turbulence.

I set out removing the OEM flange, blanking and smoothing the internet wastegate further reducing turbulence and volume of the housing.

Also the lambda sensor boss is placed slightly down stream and is 45° to reduce its protrusion into the exhaust

 

[mark1991]

 

[mark1991]

Also having removed the power steering some years ago, I ordered a new crank pulley from 4efe

From memory it was around a 1kg/1.1kg weight saved

 

[mark1991]

 

[Jay]

Have you not got enough power?

 

[SKINY]

Looks class all blinged up bud

 

[mark1991]

My VF22 shall be heading for a larger compressor wheel soon enough Jay

Hopefully she will push very high 3**bhp, me221 ECU and 2 bar map sensor also to be fitted

Cheers Skiny

 

[mark1991]

 

[mark1991]

She is currently running 1.45bar

Previously it made 350 at 1.5bar on..
Td05, 2.5" system, toyosports intercooler, zisco ram horn, 2.5" intake, standard throttle body and inlet manifold

She now runs 70mm throttle body, customer inlet manifold, customer intercooler, 3" inlet (turbo), 3" turbo back, removed PAS, custom exhaust manifold

 

[Jay]

Good to see those horses are still kicking Mark, must be a hoot when they let loose!

 

[gorganl2000]

oh the good old days of the vf turbos
i once ran a vf35 with p15 exhaust housing, was a very nice daily ride
the p18 on the vf22 should help with improve spool over the p20, but could it affect top end power??

 

[mark1991]

P18 are able to push 400 bhp on its original Subaru platform

On a 1.3 I can't see it being an issue