mattyd

to turbo a sport.

using a turbo manifold intercooler etc,

could you run it at 5psi safely?

just a random wonder i had sitting in work today,

maybe u tech heads can enlighten me?

TonyBurns

iTrader: (3)

There has been about 3 threads over the last 2 weeks about this, in all cases the answer is the same, it will cost too much as you have to replace EVERYTHING except the shell and its cheaper to just buy a turbo.

Hope that answers your question.

Tony

belliott69

iTrader: (3)

as tony said it works out a hell of a lot cheaper just to buy a turbo, for a start the insurance is going to be more than an unmodified turbo and none of the original bits are going to cope with the extra power, ie brakes.

mattyd

i dont mean an engine conv. i mean fitting a wrx header/turbo/6psi w/gate, tmic to a actual sport engine?

sti69

iTrader: (1)

You'll just blow the head gasket due to the sport having a higher compression ratio plus other factors will come into it

Splitpin

Sure, you can bolt it all on, but have you got beyond thinking about doing it to what's going to happen when you turn the key?

How are you going to cope with mass airflow and manifold absolute pressure measurement? How are you going to get the ECU calculating fuel correctly? How are you going to deal with the compression ratio issues? How are you going to get it to pass an MOT emissions test?

It's when you get to those sorts of problems that you start to realise how much of a ballache it'll be to get anything approaching a properly running car out of the idea you're proposing.

mattyd

even at 5psi?int the states they have kits for the 2.5 and 2.2 rs na at 8psi?

Splitpin

You're not going to be able to limit it to 5psi unless you use a custom wastegate actuator with reduced crack pressure. Run it on normal actuator pressure and it'll be 7-8psi like those US kits.

Your 5psi comment illustrates the futility of what you're trying to do. If you used an actuator that ran, say, 2psi, you might get it running stably and in a manner that the engine won't eat itself, but the power hike you'd get wouldn't be worth the hassle or the cost of doing it - either in parts, or in the increased insurance premium you'll be paying on a Sport with a turbo in it.

You're caught between two extremes. If you could get the boost pressure low enough to get it to run properly, it won't be worth bothering with. If you get the boost pressure high enough to make a worthwhile difference to the power, the engine will eat itself shortly thereafter.

If there's some sort of knowledge base on Nasioc etc then it might be worth looking there.