How much power can one achieve with NA Engine?

Y

yang xiong

New Member
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As the title stated, this is a two part question even though its a single question.

How much power can one get out of basic bolt on before the internal upgrades and tune with aftermarket ecu?

How much power can one get out of both basic bolt AND internal upgrades AND aftermarket ECU?

Why I'm asking was that I was always a fan of stock turbo charge car, my first compact sport car was a Mitsubishi Eclipse GSX. Love the car so much even during winter. But I wanted to try out the NA and see how much power I can gain without spending more than 3k to 5k out of pocket.

So any tips on power gain just on bolt on and after internal upgrades and ecu retune.
 
squiggy

squiggy

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Super Mod
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Michiana
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'12 Civic Si
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DBP II Coupe
yang xiong said:
As the title stated, this is a two part question even though its a single question.

How much power can one get out of basic bolt on before the internal upgrades and tune with aftermarket ecu?

How much power can one get out of both basic bolt AND internal upgrades AND aftermarket ECU?

Why I'm asking was that I was always a fan of stock turbo charge car, my first compact sport car was a Mitsubishi Eclipse GSX. Love the car so much even during winter. But I wanted to try out the NA and see how much power I can gain without spending more than 3k to 5k out of pocket.

So any tips on power gain just on bolt on and after internal upgrades and ecu retune.
Click to expand...


Any bolt-on that will produce power requires a tune. Full bolt-ons will net you 220-230 whp.

Not really many options for internals yet. So, possibilities aren't known. Biggest roadblock right now is a lack of cams.
 
Y

yang xiong

New Member
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So even if I got turbo, I'm at a deadend road till I get cams for internal then. Just saying hypothetically.
 
Y

yang xiong

New Member
15
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well thats good to know then. But I would need a tune to get 400whp without internal upgrades then correct.
 
Y

yang xiong

New Member
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So check this out my build plan.

Greddy Header Exhaust
Greddy Exhaust System
Greddy or Apexi Cold Air Intake
Performance Spark Plugs and Wire
AEM Fuel Rail
at least 660cc injector
Hondata Ecu

Well this is a start probably run me about 2k atm.

What do you think.
 
squiggy

squiggy

Cartographer
Super Mod
11,183
6,654
Michiana
Vehicle Model
'12 Civic Si
Body Style
DBP II Coupe
yang xiong said:
So check this out my build plan.

Greddy Header Exhaust
Greddy Exhaust System
Greddy or Apexi Cold Air Intake
Performance Spark Plugs and Wire
AEM Fuel Rail
at least 660cc injector
Hondata Ecu

Well this is a start probably run me about 2k atm.

What do you think.
Click to expand...

Fuel rail is unnecessary. Stock can handle 600+whp.
Wires unnecessary.
Plugs unnecessary unless you boost...then you need "colder" ones.
Injectors unnecessary unless you are boosted.
Any intake other than a 3.5" one will not produce power and may even result in a loss of power. You cannot run a 3.5" intake without a tune.
Make sure to get a 3" downpipe (9th gen does not have a traditional exhaust header) and 3" exhaust if you want to get the most power out of the car. The Greddy is only 2.76"
 
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yang xiong

New Member
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oh, so since 9th gen does not have a traditional exhaust header, then who makes a full exhaust system. I like Greddy Brand, I know they have a cat back exhaust system, if its only 2.76" wide then Im kinda loss where which I want to buy.
 
squiggy

squiggy

Cartographer
Super Mod
11,183
6,654
Michiana
Vehicle Model
'12 Civic Si
Body Style
DBP II Coupe
yang xiong said:
oh, so since 9th gen does not have a traditional exhaust header, then who makes a full exhaust system. I like Greddy Brand, I know they have a cat back exhaust system, if its only 2.76" wide then Im kinda loss where which I want to buy.
Click to expand...

Full-Race or Ultimate Racing are generally the top two choices. I believe Junk2 Skunk two makes both the downpipe and exhaust as well.

Some good threads in here that list what is available: http://9thcivic.com/forum/forums/exhaust-downpipes.169/
 
Nix

Nix

Jötunn Moderator
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It's A Fast Pig!
Yea, squiggy is on it. You need a down pipe and exhaust. Most gains on these cars have been on the exhaust side. Get a large 3.5" intake with a large DP and a 3" exhaust. You will need flash pro and a tune. 220 at the wheels is pretty quick and should be a blast to drive with some proper tires and suspension.


From there if you went turbo the only parts you would not reuse would be the intake.
 
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