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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 11-26-2007, 10:23 AM   #1
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searched this topic but couldnt really find what i was looking for, how much more power would i get from a mp performance ic vs the viggen ic, on a stage 3 tune with stage 3+ hardware, anyone have maps of this ?

car-99 t5 9-3
hardware- jsp 3" dp, td04-15hl, viggen ic, viggen cat back
software- jsp stage 3 ecu
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Old 11-26-2007, 10:25 AM   #2
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i think first off a td04 is stg.4
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Old 11-26-2007, 10:25 AM   #3
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Power - not a whole lot, the ability to hold more boost at cooler temps for longer periods of time however will be night and day.

And Saab 9-3 you can run a lower stage on a hardware setup for more power...
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Old 11-26-2007, 10:30 AM   #4
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yeah td04 is stage 4 and the only reason im not stage 4 is becasue i dont have full 3" turbo back i like the stock look and sound of the viggen exhaust and i think injectors are needed as well as a crushed fuel regulator?
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Old 11-26-2007, 10:34 AM   #5
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i seem to be getting different performance results and im not sure why im thinking its the ic, for instance some times it will boost strong and i will spin my tires at 40mph in 2nd and then ill drive normal and try to do the same again at the same rpm and speed and they wont, so im not sure what it is? possibilities its the ic ? leaking or just heat soaking or what?
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Old 11-26-2007, 10:35 AM   #6
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i know you can run lower why thou a DP is really all that is needed the stock exhaust flows well
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Old 11-26-2007, 10:40 AM   #7
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thats what i thought saab9-3usa so i just bought the stock viggen exhaust glad to see someone has similar sentiments
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Old 11-26-2007, 10:48 AM   #8
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searched this topic but couldnt really find what i was looking for, how much more power would i get from a mp performance ic vs the viggen ic, on a stage 3 tune with stage 3+ hardware, anyone have maps of this ?

car-99 t5 9-3
hardware- jsp 3" dp, td04-15hl, viggen ic, viggen cat back
software- jsp stage 3 ecu
I think this a common thing to have happen where the boost and power is not always consistant. I have played around with some different things and what I noticed was a larger ic helps, but also a lower t-stat helps some too and I have to say what helped the most besides a large ic was putting my cooling fan on a switch and running it all the time when I am doing performance driving.

By keeping the airflow across the ic and radiator, the intake air charge temps stay lower and this allows for more consistant boost levels.

The reason we do larger ic's is not so much for the hp gains, but the ability to have the boost and power available for a longer period of time or like you stated, having more consistancy. For me a viggen ic was good for 1-2 pulls and if I wind out second, its already heat-soaked and would pull boost immediately in third gear. With a mp ic size I could get maybe 3 wot pulls before that would happen and with my larger ets core I can get maybe 5 wot pulls before it heat-soaks.

W/M injection also works very well to lower intake air temps and I did notice much more consistant boost levels off the line or in traffic with my w/m system. Its a chemical ic that does not need airflow to work well!

John
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Old 11-26-2007, 11:03 AM   #9
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thanks alot jzw that helped aolt! , i wasnt sure if i was the only one getting varied performance, but would you recomend an upgrade to the mp from the viggen since im on a college limited budget lol or do you think i wont see much improvemnt ?
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Old 11-26-2007, 11:06 AM   #10
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You will definitely notice a difference.

I ran the stock ic on my 9000 Aero for about a year w/Stage 4, yeah its a bit different of a setup but same general principle applies. I noticed a big change when I went to the ets/g9 ic...mostly the car pulled harder, longer and the boost didn't taper back at all and heat soak all but disappeared.
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Old 11-26-2007, 11:08 AM   #11
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you will see imporovment with the mp over the viggen as the mp is better overall design and bigger.
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Old 11-26-2007, 11:18 AM   #12
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A quick look at the intercooler options and I see a lot of pressure drop no matter what you have unless its a custom unit.The MP unit as well as both of the stock ones stink.If I was going to put a intercooler on one of these cars at this point I would put a precision turbo intercooler on the car.They are just as cheap as the MP unit and will kick the crap out of it in performance.

http://boostfactory.net/product_info...products_id=65

If I was going to build them as a batch I would get some garrett cores that match these specs and build custom tanks and brackets as to make this a true bolt on cooler.We could also use bell cores for these.
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Old 11-26-2007, 11:31 AM   #13
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Really... On my Vig at 350whp I have .5psi drop between the compressor outlet and the intake manifold. Pretty decent to me seeing as the main restrictor is not the intercooler..

But I am sure your extensive testing will show the same.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 11-26-2007, 12:11 PM   #14
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Really... On my Vig at 350whp I have .5psi drop between the compressor outlet and the intake manifold. Pretty decent to me seeing as the main restrictor is not the intercooler..

But I am sure your extensive testing will show the same.
Are there any flow #s for the core for the MP cooler?
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Old 11-26-2007, 12:26 PM   #15
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I have some testing that I did here on the 4 main brands.. Only relative flow. I use a KJ on my car but have built higher hp cars with Forge and Ets too. The biggest difference was the abbott on Eds Monster.. It was almost like a stock one.
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2.0 GOOSE 500whp + 8500rpm = 11.06 @125 E85
Viggen 439whp / 447tq 12.43 @114 on Gt2871.64, (Now 511whp Gt3076)
Nordic E85 9-3 SS Aero 320hp / 350ftlbs
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Old 11-26-2007, 12:30 PM   #16
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This may not be exactly what you are looking for chuck but could give you a good idea:

http://www.saabcentral.com/forums/sh...2&postcount=11
http://www.saabcentral.com/forums/sh...=pressure+drop

These are two good threads on SC.
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Old 11-26-2007, 12:50 PM   #17
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Update: Chuck your PM inbox is to full! Time for a clean-up and stop being so damn popular
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Old 11-26-2007, 12:55 PM   #18
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This may not be exactly what you are looking for chuck but could give you a good idea:

http://www.saabcentral.com/forums/sh...2&postcount=11
http://www.saabcentral.com/forums/sh...=pressure+drop

These are two good threads on SC.
Be very skeptical of people claiming intercooler efficiencys over 85%.Its usually BS.
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Old 11-26-2007, 01:00 PM   #19
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I have some testing that I did here on the 4 main brands.. Only relative flow. I use a KJ on my car but have built higher hp cars with Forge and Ets too. The biggest difference was the abbott on Eds Monster.. It was almost like a stock one.
How does the KJ work for you?

The normal K&J 9-3 core looks like this

and worked like this in a <400bhp GT3071 solution during a "short" 3rd gear pull (the blue curve)


i.e IC is complete inadequate for the solution and will not survive a single longer WOT pull without heat-soaking sevearly.
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Old 11-26-2007, 01:02 PM   #20
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Be very skeptical of people claiming intercooler efficiencys over 85%.Its usually BS.

I dont claim I measure all the datalogs are visible, or did you miss them?
Temp sensors have all been calibrated and they read correct.
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