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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 08-01-2007, 03:23 PM   #1
Nick Taliaferro
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Throttle Body Upgrade

I have been wanting for a while to make a larger throttle. Stock is 65 we were able to go to 70mm, roughly a 16% increase in throttle area. This should make it a little touchy at low rpm but I am hoping it will make a difference everywhere else.


The problem is that saab of course used a metric (2mm) plate thickness and unique hole spacing which is unsupported in the available upgrade parts. (kinsler) Called my metal supplier and they had a pice of the exact material. talk about lucky. I had Ryan bore the stock throttle to the limit, it was found.. The coolant passage is no longer usable, no problem since it was one of the first things we deleted. We solved this with some 3m structural adhesive.


Here you can see the drastic difference in area


And mostly assembled.



Hopefully I can have it installed and tested before the weekend.
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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 08-01-2007, 03:25 PM   #2
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Looks awesome Nick would this be a option we can send in to have done to our stock TB?
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Old 08-01-2007, 03:32 PM   #3
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About being a production item... Certainly possible as a one off. This was a very labor intensive project. Took at least 6 hrs.. Now maybe if we make some special tooling and can do them in the cnc it might reduce it some. Need to see what the gains are fist though don't you think
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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 08-01-2007, 07:23 PM   #4
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Is this T7 cars or can be done on all Saabs? Deffinitely will be a better flow for high output cars with 3 inch plumbing from intercooler.



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Old 08-01-2007, 08:46 PM   #5
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Quote:
Originally Posted by GenuineSaab View Post
About being a production item... Certainly possible as a one off. This was a very labor intensive project.
I can machine my throttle body. What would be the cost for just the plate?

Looks nice
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Old 08-01-2007, 09:02 PM   #6
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Wow, that looks like the 900 TB I messed around with:



I have not ground on it or anything, but wow, it looks similar...
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Old 08-01-2007, 09:20 PM   #7
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Very cool Nick..... Can't wait to see the difference
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Old 08-01-2007, 09:22 PM   #8
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What bevel did you use on the butterfly edges?


Was it 2 degrees?
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Old 08-02-2007, 04:40 AM   #9
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I have a few spares if you need cores!
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can be prone to failure due to increased localized stresses in the hole penetrations
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Old 08-02-2007, 06:22 AM   #10
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Interestingly the factory plate has a 90deg edge so I tossed the idea of 5-14deg, ended up going 0 till we prove the concept.
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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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