I'm puting together a list of what i need to piece together a turbo kit for my 2.4. So far my list consists of this. please add to my list anything i missed, or would be necessary, or change a part to something else.

Exhaust and intake manifold from '03+ Saab 9-3 turbo.
The turbocharger (which i already have)
intercooler
charge pipes
BOV
2.0SS injectors
oil feed/return lines
HPtuners
plugs


i plan on running 6-8psi on a garett T-25, with stock internals. I'm not looking for insane numbers, but i want to try and get close to 200whp.

 

why would u need a 2.0 exhauxt?

 

The 2.4 doesn't have spark plug wires, so you won't have much need of them.

 

the 2.0 exhaust has more air flow does it not?

well i didn't know that. one less buy.

 

we have the same exhaust as the ss/sc. Intake manifold is unnessecary along with the head gasket.

 

i was under the impression the intake manifold on the saab is aluminum, in which case i could port it. but if it's the same plastic piece as the cobalt, then i guess i scratched off another purchase for this kit. i like where this is going. same with the exhaust. i read on another thread somewhere that the sc'd SS had a higher flowing exhaust. my list is getting smaller

 

Not sure what its made of although i know its not plastic, but the stock intake manifold is suffiecient enough especially if your goal is only 200whp. Exhaust is the same.

 

well tc/d youl see more than just 200 whp....youl see probably about 230-240 whp.....

 

well estimated HP gain is a tough call. 6-8 psi through a T-25 isn't much. well, depending how you look at it. i'm thinking 8 psi on pump gas and no internals, will get me slightly over 200whp. if it works out to be more, then i'll be happy, but my goal is 200.

oh and the part number for the exhaust manifold from Saab, is 12794948. jsut in case anyone else is looking to turbocharge. I'm calling tomorrow to get a price.

 

If it doesn't have an internal wastegate, you will need a wastegate, i suggest tial.

 

ya sorry i forgot to mention, the T-25 i have is internally gated.

 

DOES A SAAB EXHAUST MANIFOLD REALLY WORK ON A 2.4???

 

Yes.

To original poster...

Why would you want to use stock turbocharging parts? How much power are you trying to make?

 

not much. as i posted earlier, i'm aiming for 200whp. which i think is easily attainable with this application. I don't want to get to the point of breaking **** everyday, as i need this car every day, lol. i want some more power and it seems like an interesting winter project. the only stock parts i'm going to be using are the manifold, and injectors.

 

You do realize that the stock manifold utilizes a 3 bolt triangular flange style right? I believe the T-25s that garrett uses are a T3 (4 bolt rectangular flange) flange style.

Also, these are very low CFM producing turbocharging units which also results in low efficiency and very little top end power.

Honestly, I would stay away from used and stock parts.

Get a medium sized turbocharger and run a moderate boost level on them and you'll be fine. Also, if your **** breaks, you'd be screwed with that flange style unless you replace the manifold which would result in you spending money twice.

 

Ok cool, i'll definately consider what you're saying. If i trust anyones opinion here, it's yours.

as for the exhaust manifold off the saab. It said on the website the saab 9-3 uses a Garett T-25, which is exactly what i have. maybe i read wrong. or which flange are you refering to? where the exhaust bolts up to the turbo? or the turbo mounting to the manifold?

 

gotta think about tuning too. that's gonna be one hell of a tuning job with the VVT.

 

Thanks.

They use a Mitsubishi TD04 Turbocharger from the factory. What website told you this?

I'm talking about the turbo mounting to the manifold.

 

Can HP help me with that?

ok i was wrong, i got that info crossed with a manifold i found on ebay for a T-25 application, but it's not off the correct Saab. Ok so that gives me an excuse to search for a new turbo then what would you suggest i look for?

 

Look into the New GT Series and buy a manifold with a T3 Flange. It's more universal and popular to find.

www.turbobygarrett.com

 

yes? no?


http://www.turbobygarrett.com/turbob...4_454083_2.htm

 

In my opinion...no...

"Horsepower 100 - 150"

This is total hp #.

Look at the GT30, 35 or 32

 

If your only lookin for 200whp i'd say go with a gt25 or 28 series.

 

I'll wait for the Hahn kit and I'll take 250 at the wheels thanks.

 

The VVT isn't the issue (take it from someone who has tried this). And no one yet has managed to come up with a tune (on the stock computer or using a piggy-back) that is what I would consider drivable. WOT isn't an issue, but mid-range boost is. I don't expect Haan to solve this either - I asume this is why their kit made a big splash a year ago and then disappeared - it probably didn't work in the mid-range.