has anyone on here done this to there scoob if so how hard is it to do i have a blob eye wrx 2005

 

It's a fairly straightforward swap - then you just need to get the TGV related fault codes disabled on the ecu.

 

what sort of cost is involved and what gains are rhere to be had?

 

I run 400 ish BHP on my car with the TGV's still in place............

Shaun

 

A wrx ??

 

Bug WRX with a few mods running methanol injection all mapped by Bob Rawle with Olly Clark in the driving seat .......just never got around to swapping anything inside the engine or the TGV's LOL

Shaun

 

its a fairly easy job take the tgv housing of take the butterflys out n then port n polish the housings then get codes removed

 

do you need a remap when these are removed?What are the advantages of removal?

 

The butterflies can impede flow at high BHP and the little beggers can stick and throw a CEL.......as emissions are very important I think the ECU even sticks the car in limp mode (but I might be wrong)..

Like the air pump idea on hatches and the bright switch............useless !!

Shaun

 

No remap,just disabling of error codes,but i would recommend remap too

Here is good faq about the TGV

http://forums.nasioc.com/forums/show....php?t=1663677


Some people said,TGV delete will extract 10bhp

Jura

 

thanks Jura they say the job takes 6 hours,i think i wil leave them alone.

 

How to say,best if you can source TGV free manifold which is from spec C or JDM STi v8,these are TGV free manifold

I would go with TGV delete if you are planning go above 350bhp,some people running still TGV with 400bhp and are happy.


Jura

 

I have a spare set of Tumblers (2002) which I could port for you to fit?

But as Jura says the Spec-C manifold is a better bet as it frees up space for bigger intake pipes etc. However there are issues with fuel rails!

 

i cant decide if its worth all the hassle for the gains.

 

You don't need to buy a fancy manifold........standard bug/blob STi maifold has no TGV's.

TGV's were a WRX only thing........like a cat in the up-pipe and an EGT sensor

Shaun

 

if i put a sti manifold on would i still need a remap?

 

Not really a re-map just need to diable the CEL for missing TGV's on the ECU....dead simple and about £20.

Shaun