cmed

is there anything i can do to my new turbo before its fitted like porting or anything to do with the actuator any ideas that can improve it while im collecting parts for my remap please

Jolly Green Monster

iTrader: (4)

porting wastegate area helps.. occasionally see the vf35 boost creaping..

Simon

cmed

oh yes boost creeping


whats that mate

Jolly Green Monster

iTrader: (4)

ecu or boost controller asking for say 1.2bar and unable to keep it to 1.2bar usually at the top of the rev range as the wastegate is fully open but not flowing enough exhaust gas away from the turbine.. so turbine spins faster and produces more boost than required..

usually on the newage sti's the boost creaps to 1.4barish which is not overly a problem as you want it to be running that etc.. but means you cannot say have a lower boost setting because asking it for 1bar sees 1bar to 5500rpm where it then boost creaps to 1.4bar..

Simon

cmed

well i aint fitting a boost controller so itll be full boost all the way thanks for the info what about the actuator can nothing be done with that ?

Jolly Green Monster

iTrader: (4)

no need..

finchyboy

I had my wastegate ported and had an uprated acu fitted it really is a little peach of a turbo !!

New_scooby_04

iTrader: (4)

Yep, agree completely, I think it is the turbo of choice if you're happy with the 320-350 range, certainly as far as boost threshold and lag is concerned

JohnD

iTrader: (5)

May have a low mileage VF35 for sale soon, if anyone's interested?
JohnD

Butty

iTrader: (2)

The ECU will still be controlling the boost even without an additional controller and 1.4 bar at high revs is a little risky on a hot day unless you have other mods planned for your WRX.

Your choice of exhaust will also dictate how bad the creep can get.
I can't see a different actuator helping help out with creep though.

If you've got the opportunity now, port the hot side by making the wastegate hole bigger and open out the lower part of the mouth going into it.



Nick

cmed

hoe do you do that butty can i do it myself or do you know sum 1 wholl do it up north east yorks area

Butty

iTrader: (2)

You'll need a die ginder, followed up with a dremel.
Not aware of anyone in your area who could do that - perhaps try Harvey?
Or if you have enough time then post it down to me and I'll do it. I just need the exhaust side of the turbo.

nick

Benny2097

when i had a vf35 on my rb5 i got harvey to port the wastegate for me

GONZO01

iTrader: (6)

What does porting the wastegate do?

cmed

exhaust will flow better faster spool up

Jolly Green Monster

iTrader: (4)

porting the wastegate won't alter spool.. it just ensures the boost can be controlled properly with no boost creap

Simon

cmed

yes now im understanding it better when desired boost is reached the wastgate opens so as to control the boost or stop it climbing higher

porting helps even more more by helping to flow faster so as when fully open it is enough to stop the boost getting higher

Jolly Green Monster

iTrader: (4)

yes

Welloilbeefhooked

iTrader: (3)

Where in East Yorkshire are you? Just wondering as I could help with the porting of the wastegate. Need the turbo apart though.

silent running

You could smooth out the turbine entry, match it to your up-pipe, or at least make sure it's not smaller. I did that job on my TD05 with some cutting bits and an electric drill.

cmed

the headers and up pipe have been ported by harvey before i bought and the up pipe matches the turbo at about 47mm
aet turbos offered to port the turbine housing what does this mean ?

raj_kemp

I've got a VF35, waiting for fitting with other mods on MY05.
Where can I get it ported.

I live in Bedford, any suggestions.

Thanks.

Butty

iTrader: (2)

You have a PM

Floyd

iTrader: (9)

I did this to my VF35. Ported entry, exit and wastegate.

Pictures and how to do it here:
https://www.scoobynet.com/projects-4...stage-iii.html

I'm in MK Raj.

jasonius

iTrader: (1)

It was Floyds excellent thread that walked me through doing mine..

You don't need to take much off, just to smooth things out a little..

cmed

id let a profesional do it whats 30-50 pound compared to a new turbo

silent running

And some people just like doing stuff themselves. There are many places around the country where finding someone to port a turbo for £50 is much harder than having a crack at it yourself, if you have the confidence and tools to give it a go.

WRX_Rich

iTrader: (5)

or you could fit a p18 exhaust housing and forget the porting and add a few bhp may be a few extra £££

jasonius

iTrader: (1)

Nah, he'd loose the early spool..

In fact it would be worse that a VF34 as it wouldn't have the roller bearings to compensate..!

Now, if you could fit a ported P15 hot side to a VF34 roller bearing core/compressor that might be interesting. Anyone know if this is possible..? Surely the spool would be even better with this combination, 1.5bar <3k should be possible ..?

typeRv4

Im not sure it is possible but sounds like a recipe for surge...