Got The Sti On The Rollers

[timmy2take]

It got 297bhp. He wasn't able to stick the sensor up the magnex oval backbox so couldn't get an air/fuel reading.

He also only managed one decent reading as he took the first two boost readings off the actuator I think it was and it only reached 10psi of boost. I was outside then taking a phone call it wasn't until he came back in and asked if I had a boost controller and I said no, he may have been getting mixed up with the Blitz turbo timer/boost gauge.

The last run though seemed to be a good boost curve etc, just a little annoyed I didn't get my 3 proper runs.

My friend took a video of it, will see if I can post it when he sends it to me.

Edited October 15, 2008 by timmy2take

[prodrive tony]

Look forward to it

[timmy2take]

Does anyone know the transmission losses on Imprezas? as I made 241.6 & 237 at the wheels

I think I remember reading something along the line at the place was either 17% or 19% adjustment.

[granby]

Does anyone know the transmission losses on Imprezas? as I made 241.6 & 237 at the wheels

I think I remember reading something along the line at the place was either 17% or 19% adjustment.

When we were at TDi for the dyno day they said it could be anywhere between 20 to 25%

[emoe]

That sounds about right to be honest. Mine is 300 and makes 246 wheels. but then i dont have the DCCI box.

What have you done to the STI then? if nothing you have got a good standard car there,

[timmy2take]

That sounds about right to be honest. Mine is 300 and makes 246 wheels. but then i dont have the DCCI box.

What have you done to the STI then? if nothing you have got a good standard car there,

Its got a Magnex back box and 3" downpipe along with a vf34 turbo and airfilter. Would like to get a boost controller fitted, not sure whats safe boost to run, and I think i've read i'd need to get it mapped as cylinder 3 suffers from fuel starvation if you up the boost?

[emoe]

Its got a Magnex back box and 3" downpipe along with a vf34 turbo and airfilter. Would like to get a boost controller fitted, not sure whats safe boost to run, and I think i've read i'd need to get it mapped as cylinder 3 suffers from fuel starvation if you up the boost?

Youre right, i wouldnt go with just a boost controller unless its capable of adjusting the fueling to go with it.

You should be running about 1.1 bar unless im mistaken, which is about 15.7psi. You may be able to bump that up to about 1.3 bar which is about 18.5 psi

I know that doesnt sound a lot but it will make a huge difference.

Boost is always safe as long as the parameters of the engine are observed.

1: can the bottom end of the engine handle the added pressure.

2: can the head gasket and ancillaries handle the extra pressure.

3: is the engines cooling devices able to cope with the added heat?

4: are you able to supply a positive amount of fuel throughout the rev range?

5: do you have any device in which to measure the Knock (detonation)

The first two are a yes on the car you have if wanting just a touch more,

the third will be a bit iffy once you start going up above 350Bhp, as the top mount wont cope.

and number 4 will require a Walbro uprated pump, and a remap to check the fueling and ignition values.

lastly number 5, you really ought to have a KnockLink or other kind of VISUAL device to show the amount of Knock. Larger values are indications that Detonation is oocouring, and thats an engine killer.

[timmy2take]

Just uploaded the video, nothing exciting, and the sounds not fantastic as it was recorded using a camera.

http://uk.youtube.com/watch?v=0wCdFr3GzrI