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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 04-04-2005, 11:27 PM   #1
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viggen turbo on gm900

Is it a direct bolt up, oil lines and all?
Is there an estimated hp increase?
Is it worth the money?
I know its been done and ive searched for earlier thread but didnt find exactly what I was looking for.. any input would help, I already have the nordic stage 3 and its just not enough
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Old 04-05-2005, 08:37 AM   #2
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Yes it bolts up.
No the oil lines dont match, you will need some fabricated.
Its worth the money, but you will want to have your ECU re-staged to a 3+ or a 4.
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Old 04-05-2005, 08:51 AM   #3
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yes I would plan on getting the ECU remapped soon after the turbo install.
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Old 04-05-2005, 09:15 AM   #4
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Quote:
Originally Posted by slabr900
its just not enough
http://www.maptun.com/webshop/produc...20&produkt=205

go stage 6!
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1990 900 turbo vert
2004 9-5 aero sedan
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Old 04-05-2005, 09:48 AM   #5
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8,788 US dollars for the stage 6.....would be cool but waaaay too expensive
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Old 04-05-2005, 10:18 AM   #6
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Just finished a similar upgrade...using a 99 Viggen turbo to upgrade with..

The banjo bolts are smaller on the turbo for the coolant lines. I went with a different style and some stainless braided lines to connect up with.

I'll take some pics if anyone might be interested...
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Old 04-05-2005, 11:54 AM   #7
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Yes please I would love to see them ! How much more did you like it compared to the T25?
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Old 04-05-2005, 11:58 AM   #8
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That 7K euro includes all hardware. Subtract from that what you already have then you will have the cost for you.
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Old 04-07-2005, 06:51 PM   #9
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Quote:
Originally Posted by slabr900
Yes please I would love to see them ! How much more did you like it compared to the T25?
sorry it took so long..but check these out.. turbo should have vacuum lines on wastegate actuator and at the on the bottom of the turbo; has 2 oil lines and 2 coolant lines both opposite of each other on the inner housing between the compressor and the turbine housing.

but here's the general synopsis...
but first, use some liquid wrench on all bolts to be removed
1. jack up the car, and support on jack stands, using a wheel block
2. drain oil and coolant
3. remove the intake filter, and pipe up to the inlet pipe on turbo
3. loosen the fan belt
4. remove the power steering pump, and bracket
5. remove the vacuum lines
6. remove downpipe from turbo exhaust housing
7. remove coolant and oil lines
8. remove oil filter, turbo oil return, and support bracket
9. remove the exhaust manifold with turbo...(a good time to wrap exhaust manifold with some heat wrap)
10. remove the bolts securing the turbo to the exhaust housing...

You'll need to obtain either smaller banjo bolts and coolant line connections that match the Viggen turbo or fabricate your own.

Connect the coolant & oil lines loosely so it will be easy to line up the holes on the block. Fill the turbo up with oil before reinstalling.

Install everything else in reverse...and should be good to go taking your time.

hope this helps...a little
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Old 04-07-2005, 07:30 PM   #10
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That helps alot !!! The heat wraps look great btw
What is tapped into your intake piping ?
Oh and also do you know the exact size of the smaller banjo bolts needed ?
Thanks for taking your time to write that up, Im sure when I get and install the turbo that will help alot!
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Old 04-07-2005, 07:50 PM   #11
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that stage six is nuts!

very good write up DC and nice pics... i like what youve done!
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Old 04-07-2005, 08:24 PM   #12
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Quote:
Originally Posted by slabr900
That helps alot !!! The heat wraps look great btw
What is tapped into your intake piping ?
Oh and also do you know the exact size of the smaller banjo bolts needed ?
Thanks for taking your time to write that up, Im sure when I get and install the turbo that will help alot!
your welcome,
...and I believe a very simple bolt-on procedure once you figure out the proper connections. I forgot to add that you'll need the TD04 inlet pipe with a new rubber O ring, because the opening is slightly larger. The banjo bolt on your smaller end of the oil line connection is the same size on the coolant line, and you can purchase them from a performance shop or the same place you get your turbo..or the dealership. The metal lines were hard to come by so once I was able to match up the right fit thru some minor trial and error using the turbo as my guide....everything went together well.

The tap is my PCV line off my oil tank, and I also used a freeze plug to close off the bypass entry on the inlet pipe. I use a blow-off valve...but you can also make this usable with some minor modifications for your bypass valve, ...should you still choose to use it.

good luck
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