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Old 26th August 2009, 21:56   #1
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Default Points to consider while modding a Naturally Aspirated engine.

We have a separate thread on how to "turbo/supercharge" an engine. Thought it would be better to have a separate thread to discuss the pros and cons of doing a NA build.

Let us not get into the details of how much power an air filter, spark plugs, wires etc make, for that we have the 25bhp bolt on thread. Let this thread serve us for discussions about:

1. Cams.
2. Porting & Polishing heads.
3. Header design.
4. Compression increase.
5. Gear ratios.
6. Clutches.
7. Suspension setups etc etc.

With reference to the above mentioned points (feel free to add if i have missed any) what are the things one must keep in mind while modding their cars. I shall try adding to the list as and when I can.
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Old 26th August 2009, 22:48   #2
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I would also suggest to give the drawbacks each one of these mods have on the car.

For example, header design. headers tuned for top end will completely kill the low down torque due to reduction in back pressure. headers built for street use will improve mid range but top end will not change much.
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Old 27th August 2009, 00:24   #3
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Maybe a FFE? cat back? Details regarding this ? And 4x2x1 or 4x1 ?
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