1999 civic si: how to get 200 hp?

xXDeathMaliCeXx

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Quickest way to breaking the 200 mark without boost is a block swap. You need a bigger bottom end. Either a b18 or b20 short block with some mild upgrade work to the hardware, like bearings and rod bolts. After that, intake, headers, exhaust, and tune should get you at/near 200. If you change out pistons and rods for higher compression you can guarantee 200

Or go the badass route, and boost the b16. 200 is easy-peasy with boost. You'll start shooting for 300 real quick.
What's the difference between b20 long block and short block?


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Alec95

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i dont really have a budget, just dont want to go over board.
 


Billy.

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What's the difference between b20 long block and short block?


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Short block is just the block, no head or tranny. Long block includes the head. B16 head is better than b18/ls head and b20 head
 


xXDeathMaliCeXx

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Short block is just the block, no head or tranny. Long block includes the head. B16 head is better than b18/ls head and b20 head
Ooh ok. Yeah I'm looking at the whole engine probably without tranny for $650 picked up I believe. Then I can sell the head. I'm thinking about throwing on a GSR head though instead of the b16a2. Any gains from GSR as opposed to b16a2 head? Sorry to thread jack just curious.


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CJ89

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Ooh ok. Yeah I'm looking at the whole engine probably without tranny for $650 picked up I believe. Then I can sell the head. I'm thinking about throwing on a GSR head though instead of the b16a2. Any gains from GSR as opposed to b16a2 head? Sorry to thread jack just curious.


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THREAD JACKER!!!!!!!!!!!


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R3dline

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i wouldnt do anything to it, its a unmolested si, leave it that way
 

HonDaReal

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If ur gonna boost dont use cheap ebay s**t. 200 isnt hard for a na motor to hit. In my opinion if u gotta ask how to hit 200hp boost may be a little much for u to maintain. N/a will be much easier to maintain and more reliable. Good bolt ons. Cams and piston set ups will get ur goal and can be kept lowkey from cops.
 

Billy.

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Ooh ok. Yeah I'm looking at the whole engine probably without tranny for $650 picked up I believe. Then I can sell the head. I'm thinking about throwing on a GSR head though instead of the b16a2. Any gains from GSR as opposed to b16a2 head? Sorry to thread jack just curious.


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It's been dyno proven that the b16 head will make more power than the GSR head for high compression N/A builds, all other things being equal. It flows air better.
i wouldnt do anything to it, its a unmolested si, leave it that way
How many times have we told this to virgin Si owners, and how many times has it worked? :lol:
 

xXDeathMaliCeXx

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It's been dyno proven that the b16 head will make more power than the GSR head for high compression N/A builds, all other things being equal. It flows air better.

How many times have we told this to virgin Si owners, and how many times has it worked? :lol:
Good to know! And it didn't work on me lol :P
 

anfrey

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i'm still wanting to hear what OP has to say about his plans, budget, etc.
 

JohnS.

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While I do enjoy the idea of boost, I also would absolutely love a high rev'ing N/A motor. B20VTEC would make for an awesome fun DD. Once you boost, you're going to want more and more and it can get pretty pricey to start building it.
 

anfrey

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honestly, once you hit about 300whp you're hitting the limits of usable cornering power in real world situations and tighter low speed tracks (<90mph straights between corners). in autoX the extra power is pracitcally useless due to turbo lag anyway.
 

xXDeathMaliCeXx

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While I do enjoy the idea of boost, I also would absolutely love a high rev'ing N/A motor. B20VTEC would make for an awesome fun DD. Once you boost, you're going to want more and more and it can get pretty pricey to start building it.
That's what I plan to do, NA B20V :D

But yeah, waiting for OP plans as well.
 

Billy.

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honestly, once you hit about 300whp you're hitting the limits of usable cornering power in real world situations and tighter low speed tracks (<90mph straights between corners). in autoX the extra power is pracitcally useless due to turbo lag anyway.
This is truth. 300hp turbo setup on FWD civic is sloppy for auto-x. Stick with N/A
That's what I plan to do, NA B20V :D

But yeah, waiting for OP plans as well.
crvtec is a really fun motor. Just don't do what I did, and slap a bone stock b20z block to a b16 head and expect it to last. It will need some mild-moderate hardware upgrades to guarantee some reliability.
 

anfrey

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crvtec is a really fun motor. Just don't do what I did, and slap a bone stock b20z block to a b16 head and expect it to last. It will need some mild-moderate hardware upgrades to guarantee some reliability.
why do people always underestimate the necessity for supporting mods?
 


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