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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 04-18-2006, 06:50 PM   #1
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Turbo Upgrade Possibilities

I have a feeling my turbo is going....soon.

I have a warranty on my car that would most likely replace it for free (not sure tho because of my mods--hope i didnt void anything


So what are my options if I want to upgrade? I want something that will bolt right up.

All I know about is the Aero turbo with the 6cm housing compared to my 5cm housing, but is that even worth the money to upgrade if i can get a 5cm for free?

The other one i heard of is the Garrett GT series turbos. Do these bolt right up?

I know I will need new software which wont be a problem because Jak would be able to set me up nicely i hope, but anything else I would need? (I'm thinking im gonna need injectors with a bigger turbo)


So what are my options? Anyone have either the Aero or GT series turbo on their car?
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Old 04-18-2006, 06:57 PM   #2
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I bet you could take advantage of the new TD04 and have someone put an 18t compressor wheel on it...not sure what that will run you $$$ wise
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Old 04-18-2006, 06:59 PM   #3
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yeah ive heard good things about the 18t being used. basically no mods to the engine to make it work, you get to keep the same exhaust, intake, oil and water lines. that would probably be enough to keep you happy for a while.
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Old 04-18-2006, 06:59 PM   #4
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Quote:
Originally Posted by JK9000s
I bet you could take advantage of the new TD04 and have someone put an 18t compressor wheel on it...not sure what that will run you $$$ wise

yea Jak was saying something about the 18t...will that just be my TdO4 with a bigger turbine wheel? Because i asked him about the t25/t28 hybrid and he said not to because it wont bolt right but i should do a 18t...both for about $800
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Old 04-18-2006, 07:02 PM   #5
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im thinking the same thing, but i dont have a warranty.

my 1st choice this: buy a used T25, send it to Deadbolt Enterprises (www.boostplanet.com) which is VERY close to where i live and have them do a rebuild, larger compressor wheel, ceramic coating, and port/polish it for less than $500.

or: upgrade to a TD04...

what to do?
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Old 04-18-2006, 07:20 PM   #6
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o yea, would the infamous disco potato bolt up? lol
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Old 04-18-2006, 07:22 PM   #7
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i dont think so. it requires some work so i hear.
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Old 04-18-2006, 07:25 PM   #8
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Disco potato isnt a direct bolt up turbo and an 18t wheel will be unbalanced on a TD-04 w/5cm exhaust housing - you would need the 6cm housing from an aero.
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Old 04-18-2006, 07:31 PM   #9
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unless you a swapping with the same unit turbo upgrades are never "bolt on" you will always run into issues. Even the td04 which is supposedly "bolt on" is far from it.
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Old 04-18-2006, 07:33 PM   #10
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Quote:
Originally Posted by jrbrangi
unless you a swapping with the same unit turbo upgrades are never "bolt on" you will always run into issues. Even the td04 which is supposedly "bolt on" is far from it.
i have the TD04 right now..why would a different TD04 be any different?
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Old 04-18-2006, 07:34 PM   #11
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I think whay im going to end up doing is getting a new TD04 and converting it to an 18T
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Old 04-18-2006, 07:36 PM   #12
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I was just talking in terms of upgrading from the garrett base model turbo to the mitsu td04.
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Old 04-18-2006, 07:38 PM   #13
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o ok...yea, i think thats a good amount of work and why im not going to go from a mitsu. to a Garret... I was thinking about the t25/t28 hybrid that Jak has
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Old 04-18-2006, 07:56 PM   #14
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has anyone upgraded to the 18t? how much was it and how hard, and what kind of performance can be expected?
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Old 04-18-2006, 08:03 PM   #15
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I will be doing this, probably 90%. You can get pretty good gains. Nick uses this turbo on his Viggen with some good results. I have heard that in terms of the 2.0 engine, it is the optimum turbo in terms of power and driveability.

I have been told this turbo is good for 350 hp and 400 ft-lb at the crank. Sounds good to me, as this is probably a good realistic point of our cars.

My suggestion for you. Do whatever it takes to get the turbo covered by warranty. I mean spend a day switching parts back to stock, anything! Its a $650 part or something from Saab.

Now, once you get that, start looking for the 9000 aero turbo to rebuild, rebuild it, and swap with your new turbo. Now you can sell your almost brand new turbo to the many guys looking for that upgrade on their t25 equipped cars. Brilliant, eh??
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Old 04-18-2006, 08:06 PM   #16
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Quote:
Originally Posted by stromer
I will be doing this, probably 90%. You can get pretty good gains. Nick uses this turbo on his Viggen with some good results. I have heard that in terms of the 2.0 engine, it is the optimum turbo in terms of power and driveability.

I have been told this turbo is good for 350 hp and 400 ft-lb at the crank. Sounds good to me, as this is probably a good realistic point of our cars.

My suggestion for you. Do whatever it takes to get the turbo covered by warranty. I mean spend a day switching parts back to stock, anything! Its a $650 part or something from Saab.

Now, once you get that, start looking for the 9000 aero turbo to rebuild, rebuild it, and swap with your new turbo. Now you can sell your almost brand new turbo to the many guys looking for that upgrade on their t25 equipped cars. Brilliant, eh??
So I would work on aero turbo to convert to 18t....why not just used my new TD04 to convert to the 18t? seems like a lot less work, and how much will i gain from the 6cm housing?
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Old 04-18-2006, 08:10 PM   #17
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Well your exhaust gas temps will be very high with an 18t/5cm2. Now this is where I usually get mixed up, so don't beleive everything I say to be 100% accurate. But basically the exhaust side will cork the flow of the 18t, if that makes sense.
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Old 04-18-2006, 08:12 PM   #18
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Quote:
Originally Posted by stromer
Well your exhaust gas temps will be very high with an 18t/5cm2. Now this is where I usually get mixed up, so don't beleive everything I say to be 100% accurate. But basically the exhaust side will cork the flow of the 18t, if that makes sense.
lol ok, still better than my knowledge tho...so if i want to upgrade to 18t i basically have to upgrade to the aero turbo as well? Anything else i can do turbo wise? I dont want this to be uber expensive, and i want everyting to fit up decently
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Old 04-18-2006, 09:48 PM   #19
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Quote:
Originally Posted by stromer
Well your exhaust gas temps will be very high with an 18t/5cm2. Now this is where I usually get mixed up, so don't beleive everything I say to be 100% accurate. But basically the exhaust side will cork the flow of the 18t, if that makes sense.
you got it. 18t will feel like a stock turbo with a 5cm housing because its waaay to small and wont be able to move all the air...as it is if you ran an 18t wheel with the 5cm housing egt's would be off the chart and do damage to something most likely. You can get an 18t upgrade (the wheel has to be clipped to fit the housing and to prevent boost creep) for about $500.



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Old 04-19-2006, 05:13 PM   #20
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as well if you go to the td04 with 6cm housing i think you will need to port out the exhaust manifold to accomodate. looks like a fun little project but will require removing the manifold from the car?
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