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Old 09-09-2013, 10:34 PM   #1
914forme
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Member#: 110453
Join Date: Mar 2006
Default Porsche 914 Conversion - 3.3L Tranny question

Here is the primary goal of my project. Take a 914, build it into a reliable street car that I can drive to the auto-x or track have fun and drive back home.

To that end, I already have a stiff chassis, I have suspension and brakes. I am working on the body currently to stuff 255 on the rear and 235 up front. I will be lightening the chassis as much as I can using all metal goal is sub 2000 pounds. With me in it and half a tank of fuel.

I will be using a 3.3 from the SVX, I just picked up a donor SVX. I now need to start sourcing a transmission to use with the car. Is there a difference in bell housing bolt patterns. or is it just gear ratios and final drive ratios. I am thinking about 5MT, and there are a ton of variations to work through for an NA car, I was thinking using 2.5RS or even a Forester tranny from a 2002 range car. Or do I really need to track down a 2.0L WRX 5MT unit?

What should I be looking for? And I need to be able to install a limited slip, like an upgraded OBX unit.

Once I get progress going I'll setup a build thread on here and 914world.com
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Old 09-09-2013, 11:16 PM   #2
Baldturbofreak
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Join Date: May 2003
Location: Honeoye, New York
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2002 WRX,95 Tvette
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The 3.3L has only 4 bolts holding it to the trans vs the newer blocks 6 or 8. However they still line up with the holes on either generation so your able to bolt it to virtually any scooby trans. For example I have a 94svx bolted to a 02 V7 RA 6sp thru a tilton twin disc that used to sit behind the original Ej205 in my bugeye. Scoobies=legos
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Old 09-10-2013, 12:43 AM   #3
WoodsWagon
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lots of junkers

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If you use the trans from a turbo car with a pull type clutch your aftermarket clutch selection will be much better.

With an 8 bolt trans on a 4 bolt engine you will need to make the lower starter mount stud. Easy fix.

Look up subaspool for the locking collar to make an awd trans fwd. http://www.subarugears.com/Products.html
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Old 09-10-2013, 05:37 AM   #4
914forme
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Ah thank you for those two answers that clears it all up. More power means Turbo trans just for better clutch choices. Yet I can use any model I want, now to find one with the gear ratios close to what I am looking for.

Last edited by 914forme; 09-10-2013 at 07:58 AM.
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