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E46 Engine Swaps
Replacing your motor? From direct replacements to more exoctic engines, if it's going under the hood of an E46 3 Series this is the forum to discuss it.

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Old 05-02-2018, 03:22 AM   #1
Aussigazza
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Join Date: Oct 2017
Location: Bungendore NSW Aus
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My Ride: E46 330i and M3
Year: 1999
Model: Now 330i
Transmission: 6 Speed M3
2.8l Cable Carb vs 3.0l fly by wire - Compared.

Have both on hand so thought I would document their bolt hole and intake dimensions for you all.

The 2.8l can be bored out to about 69.5mm, so you can stay with cable and ms42 if you move to the M54b30 intake on older Cars and get maximum flow rates. A common upgrade.

You can also buy adaptors. Pics and dimensions:



Garry

Last edited by Aussigazza; 05-02-2018 at 10:45 AM.
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Old 05-04-2018, 05:46 AM   #2
Aussigazza
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Join Date: Oct 2017
Location: Bungendore NSW Aus
Posts: 761
My Ride: E46 330i and M3
Year: 1999
Model: Now 330i
Transmission: 6 Speed M3
Received the 330 intake pipes today and they are a slight slip fit on the 2.8l cable carb. I have no doubt that they will seal ok with the hose clamp.

So leaving the 2.8l as is and upgrading everything else, or boring out the throttle is a viable option to get bigger manifold. Need a tune if course.
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