S2000 Naturally Aspirated Forum Discussions about N/A motor projects, builds and technology.

increasing hp

 
Old 09-03-2010, 08:13 AM
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i like FI as well, but i will probably keep my s2k n/a. it is generally more reliable on a honda, but that can be subjective.
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Old 09-03-2010, 08:23 AM
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Originally Posted by boy blue11,Aug 30 2010, 12:32 AM
I want to slowly start building up my motor so I was curious if anybody has any input?
I was thinking starting with the basics, air flow, flywheel, cams, ecu. Then go from there. any ideas?


without going into the internals....

you can expect 20-25 hp increase at most typically with all the bolt ons and tuning....

you will need some sort of EMS to make the most out of it.....with the right parts you can lower VTEC to about 3500 and pick up a large chunk of mid range
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Old 09-03-2010, 08:47 AM
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would you be able to use a vafc for tuning, or would you recommend something else?
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Old 09-03-2010, 10:58 AM
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Originally Posted by XtianDobbZockOn,Sep 3 2010, 08:47 AM
would you be able to use a vafc for tuning, or would you recommend something else?
you could...but it is no where near as effective....it doesn't allow for ignition timing changes
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Old 09-03-2010, 11:45 AM
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Originally Posted by camuman,Aug 31 2010, 11:12 AM
man this answer is so simple.

1. walk over to car
2. remove wallet from pocket, some use back pocket, i prefer front pocket
3. remove money from wallet
4. throw it at the car
5. walk away.
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Old 09-03-2010, 01:17 PM
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Hytech Header
SOS BB throttle body
HKS 75mm single
AEM V2
Okada Coils
AEM EMS

end of story.
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Old 09-03-2010, 04:52 PM
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If you have to go NA...

Fast Forward/PLM header
FIPK/CAI + Snorkel
70-75mm exhaust
70-75mm test pipe
Tune

And what makes probably the most dramatic difference is gears. 4.56's or 4.77's will make an NA S2000 much faster. Loses top end but increases your 0-100~ runs.
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Old 09-03-2010, 11:36 PM
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My bolt on plan's

FIPK intake, BPI stack, AUT cooling plate(might try a custom 3.5" pipe)
Big throttle body
Hytech or J's header
75mm test-pipe
HKS 75mm single exhaust
AEM EMS

I'm still looking into intake manifolds.
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Old 09-04-2010, 08:24 AM
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No expert, but trying to improve on the factory IM wont get you very far. I think it has good enough flow characteristics. I would get your exhaust, tp/HFC, header, and EMS, and then spare yourself the cash on getting a SOS TB, Okada coils, and working on the IM and putting the money towards I-vtec or ITBs.

SOS TB and the coils will yield benefits, but after the basic bolt ons, the money you spend to get those benefits wont be nearly as significant as they will be getting ITBs. Assuming you have access to a good tuner.

Of course, it just depends how long you intend to have the car, and what kind of NA monster you really want.

Happy modding!
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Old 09-04-2010, 03:22 PM
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Originally Posted by H22toF20,Aug 31 2010, 02:58 AM
You F/I guys go back to your own section.
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