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Ls/vtec engine build, help me guestimate hp, and torque please

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Old Oct 18, 2004 | 07:04 PM
  #1  
KustomCrx's Avatar
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Default Ls/vtec engine build, help me guestimate hp, and torque please

I see alot of people asking for 1/4 times about their engines, but I want to see if anyone has a similar engine as mine to see how much hp, and torque Im make.

My build: 2001 GsR Head, Skunk2 Gears, Skunk2 mani, B18b block, Stock headers, and GsR tranny.

If anyone has the same or close to the same, I know the gears dont make much difference, but what kind of hp am I looking at and torque. Thanks. I would like everyones opinion.
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Old Oct 18, 2004 | 08:28 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

Guessing HP is like predicting the weather in two months, it's just not that easy. Every motor is different, and it's possible that two motors with the same mods could put down totally different numbers. If you want an "idea" of what you may end up with then I suggest searching to see what kind of numbers others have put down with similar setups.

I just got through doing the ls/vtec thing. I went all forged, arp, ect on the bottom with ITR head and sku2 valvetrain. I would suggest at the least, getting the ls rods shotpeened and running a higher compression piston. Revving to 8k on a stock ls bottom will pretty much doom your engine a short life. There's no point in doing lsvtec half-*** b/c you'll end up doing everything over again if your not careful.

Lots of people comment on the reliability of ls/vtec. The main problem is the ls bottom end wasn't meant to rev past 6800 or so. The ls doesn't have a girdle and the less desirable rod stroke (1.54 I believe) puts lots of stress on the rods and rod bolts when you rev high. I'd hate to see your motor project up in smoke in a month or two, so do some research and make sure your doing it right. You will be thanking yourself later
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Old Oct 20, 2004 | 03:21 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (98Itr-0448)

Oh, I dont want a precise number an estimate is perfect, from 160 to 180? or 180 to 200? Something like that, with ls/vtec. Nothing specific, just throw out a number for me. Make me happy.
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Old Oct 20, 2004 | 03:23 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

your making 224 whp and 210 ft lbs of tq
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Old Oct 21, 2004 | 07:53 AM
  #5  
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (pr0honda)

Thank you, very much.
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Old Oct 21, 2004 | 08:02 AM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

lol
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Old Oct 21, 2004 | 08:03 AM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

I think more like 278.998 hp and 215.489 torque. Acutally, with stock bottom end and stock gsr head your probably putting down around 170 hp. Of course this is just a guess. Bump your compression and run some better cams and you'll sneak up on the 190 mark. Stage II cams, hondata = the lovely 200 area.
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Old Oct 21, 2004 | 09:41 AM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

150-160 whp.
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Old Oct 21, 2004 | 06:28 PM
  #9  
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (Phatch99)

So why is the Ls/Vtec so popular if I can just get an ITRengine swap with more Hp? That doesnt make sense....
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Old Oct 21, 2004 | 06:41 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (KustomCrx)

easy, because type-r swaps are pricey.... and back when the ls/vtec craze hit so were gsr swaps...
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Old Oct 21, 2004 | 06:51 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (civicgsr19)

ls vtec is surperior only if you build it right. If you leave everything stock on the bottom, you limit the potential provided by the vtec head. Build the bottom and you'll put down more hp and torque than a vtec motor. The ls has slightly larger displacement and longer rod stroke. This will equal more power, but how much more will depend on how it is built, ect. If you want something all stock, then go vtec motor. If you want a built all motor beast, then go ls/vtec.
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Old Oct 21, 2004 | 08:42 PM
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Default Re: Ls/vtec engine build, help me guestimate hp, and torque please (98Itr-0448)

Thanks that helps alot.
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