terzo007

Hi all i have a wrx terzo can anyone tell me what it is safe to take the bhp to and the max safe boost pressure i can run.

TNE

What car do you have?

A Terzo and WRX are 2 different models.

wrx-kris

dont use an MBC either....

terzo007

i have a terzo but always thought it was same as wrx.
Car is decatted upratted fuel pump and air filter

terzo007

Whats a MBC

wrx-kris

manual boost controller AKA bleed valve

terzo007

I have it booked in at a place called mikemachanics closest place to me with a four wheel rolling road. Last time the car was there being tuned he told me he would need to put a defender on the ecu so he could up the boost setting if i wanted to increase the performance anymore

wrx-kris

does "mike" know his impreza's?

i'd be more tempted to take it to a place with a good rep for working on them
terzo's a ltd edition isnt it?

wrx-kris

Terzo

1997 saw Subaru win the WRC manufacturers title for a third time in succession. Even before the official announcement to the UK Subaru dealers, rumours were circulating over the inevitable release of a third special edition, with the possible specification suggested being very close to the final car. Available from April 1998 onwards, at an on the road price of £22,995, a total of 333 "Terzo" special editions have been produced (numbered 1 to 334, omitting 13). Terzo is Italian for third. This is to celebrate the third WRC championship victory in a row, and hence the third special edition. Specification for the Terzo is as follows:

* Special mica blue paintwork (similar but not identical to the current WRC cars)
* Current style 16 inch alloys, but painted gold
* Air conditioning
* Alacantra + suede effect interior trim (Same front seats as fitted to recent STi models, but without embroidered STi logo, and red shoulder flashes)
* Interior number Terzo plaque
* Cobra 6422 Thatcham Category 1 alarm with remote central locking
* Side and rear Terzo decals
* Special Terzo floor mats
* Non folding rear seat

BLACK V5

A terzo is a uk car. 208bhp standard. A WRX is a jap import. One the same year is 276bhp standard.

wrx-kris

thougt so, saw it here Subaru Impreza FAQ

terzo007

I know all about the things you get with a terzo and why its a ltd edition but i thought terzo was a ltd edition wrx its not a sti so must have the same angine as wrx

New_scooby_04

iTrader: (4)

Mike's plan will most likely result in you needing an engine rebuild! Did he suggest you get the fueling checked with a wideband AFR and someone with Det cans to listen to the car before going any further?

The fuel cut is there to stop your engine going pop!

If you want more power, you're looking at a replacement ECU and a remap. This will safely make the most of your decat.

Boost is just one part of the equation: fueling and ignition need to be adjusted to suit!

Speak to someone like Andy Forrest if you're in the North, or Simon, AKA Jolly Green Monster if you're in the South.

It won't be cheap, but it WILL be reliable. You play, you pay!

Ns04

davej

Hi all
Been reading with interest what is being written.I know mike personally as he is mainly into full grp A Rally car prerperation whether it be from old mk2 escorts thru to scoobys, evos or cossies.
He tuned and looked after my cossie for a long time with no mishaps at all and ran a genuine proven 414bhp turned on the key and went every time no matter how i drove it.

The work you are thinking of means mike will link a fuel/air ratio monitor linked with a set of det cans and the car will be gradually mapped to suit the fuel/mix.For the purpose of reliability he will also fit a cut defender to make sure there is no over boost and therefore no engine damage.

Mikes big thing is reliability, as he used to say with my cossie could run more to get more but will sacrifice something else.

I recommend him mate and now i've got an evo will take that there without hesitation.

New_scooby_04

iTrader: (4)

relieved to hear about the use of Det cans and a wideband AFR.

What will he be using to map the car?

Not Ecutek, as that's MY99 onwards.

Ns04

davej

Not to sure about the what he will be using as i'm not that clued up as yet on japanese performance cars, still at the learning stage, i've been rs turbo 1st then cossie for the last ten yrs.

I know his methods and before he does anything he gives the car full diagnostic check to make sure his starting point is right before he considers doing anything else, and he will tell you if it ain't right.

Last time out on the cossie he actually reduced the boost and changed the set up to make the car far better on the road rather than untractable and power figures.