LX to VTEC
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LX to VTEC Hey guys, I am new to the forum and just had a question. I bought an LX civic before I knew how much you need VTEC. So my question is: is it possible to make my 1.7L non-VTEC, VTEC...and if so how much and how hard would it be? Also if it is possible what all is involved?
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Originally posted by cambo
lol "how much you need VTEC" hah!
at least u spelled it right tho.
lol "how much you need VTEC" hah!
at least u spelled it right tho.
Don't worry about it, it's nothing but a name on these engines
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From: Tampa, Florida, US
Rep Power: 0 Originally posted by born2xLr8
Lots of people say that they can't even tell the difference between a SOHC and a VTEC. Like the others said, you don't "need" it. I wouldn't worry about it.
Lots of people say that they can't even tell the difference between a SOHC and a VTEC. Like the others said, you don't "need" it. I wouldn't worry about it.
You guys are just jealous cause you got the black-mirrored LX 
I drove my friends' LXs, and with the VTEC, you can definitely feel it in higher RPMs -- not strong, but nonetheless, still there. It helps save gas to. Every bit helps right? Lets say you LX guys had the ability with the flip of a magic switch on your dashboard to turn on VTEC, you mean to tell me you'd rather leave it off?
I drove my friends' LXs, and with the VTEC, you can definitely feel it in higher RPMs -- not strong, but nonetheless, still there. It helps save gas to. Every bit helps right? Lets say you LX guys had the ability with the flip of a magic switch on your dashboard to turn on VTEC, you mean to tell me you'd rather leave it off? 
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Rep Power: 0 I think VTEC is a must. I just got my head swapped from an LX head to en EX head so I could have it. I also agree with the guy that said that every lil bit helps. If your racing, that extra 13 hp or whatever it is might make the difference in gettin spanked or not.
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The Si VTEC is nothing to cheer about either. The Si makes the 160 HP from the 2.0L displacement. For all intents and purposes, the timing is fixed.... Why you ask?
The i-VTEC in the K20A3 is intake only. And of the variable intake timing, only 1 valve is variable.
One intake valve always follows the primary cam profile, the second one follows a secondary whimpy cam profile until 2300 RPM and then shifts to follow the Primary cam. Exhaust timing is fixed. That's it. Totally useless, no extra power. Some people say the Si bombed for this reason... I'd tend to agree... it's a step back from the B16A beast from 99 and 2000.
Meanwhile EX VTEC is intake only, but it varies the timing of both intake valves and it does so to add extra high end power. Both intake valves follow the lower profile until roughly 4500 RPM (everyone always argues this... so say somewhere between 4100 and 4800) when they both shift to the high cam profile.
You want manly man's VTEC, get a K20A2 from an RSX Type S and swap it... that'll give you the fabled VTEC where both the exhaust and intake are variable, giving it the rediculous redline and high end power that VTEC engines are known for.
The i-VTEC in the K20A3 is intake only. And of the variable intake timing, only 1 valve is variable.
One intake valve always follows the primary cam profile, the second one follows a secondary whimpy cam profile until 2300 RPM and then shifts to follow the Primary cam. Exhaust timing is fixed. That's it. Totally useless, no extra power. Some people say the Si bombed for this reason... I'd tend to agree... it's a step back from the B16A beast from 99 and 2000.
Meanwhile EX VTEC is intake only, but it varies the timing of both intake valves and it does so to add extra high end power. Both intake valves follow the lower profile until roughly 4500 RPM (everyone always argues this... so say somewhere between 4100 and 4800) when they both shift to the high cam profile.
You want manly man's VTEC, get a K20A2 from an RSX Type S and swap it... that'll give you the fabled VTEC where both the exhaust and intake are variable, giving it the rediculous redline and high end power that VTEC engines are known for.
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From: Des Moines, Iowa, US
Rep Power: 0 just changing the head would not change your car to vtec!!!! i hope you are not telling people that!!!! you think you can get aprox 13hp from just a header on out car?
to change it over to vtec its probably better just to go get one with it fromthe factory
to change it over to vtec its probably better just to go get one with it fromthe factory
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Rep Power: 302 Hmm, Just so everyone knows the HX model is VTEC... With the same amount of HP as the LX and DX..
DX- SOHC Engine, with no power. 115 HP Engine
HX- SOHC VTEC Engine, with some power but no sunroof, 115 HP Engine
LX- SOHC Engine, with all power but no sunroof, 115 HP Engine
EX- SOHC VTEC Engine, with all power, sunroof, and 127 HP Engine.
Sorry, but no one was saying the HX, and that is a car they sell, I almost got one, but wanted the power features, and at the time didn't really know or care too much what VTEC meant, and now that I know I like my Non-VTEC civic better.
I heard Non-VTEC's are easier to Turbo than VTECs... just something I heard... No offense to the VTEC owners.
RiceRocketeer
DX- SOHC Engine, with no power. 115 HP Engine
HX- SOHC VTEC Engine, with some power but no sunroof, 115 HP Engine
LX- SOHC Engine, with all power but no sunroof, 115 HP Engine
EX- SOHC VTEC Engine, with all power, sunroof, and 127 HP Engine.
Sorry, but no one was saying the HX, and that is a car they sell, I almost got one, but wanted the power features, and at the time didn't really know or care too much what VTEC meant, and now that I know I like my Non-VTEC civic better.
I heard Non-VTEC's are easier to Turbo than VTECs... just something I heard... No offense to the VTEC owners.
RiceRocketeer
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Rep Power: 0 so if you are saying that both the HX and the EX have vtec, then what gets the extra 13 on the EX? better vtec or what? or maybe your confused? how come the vtec didnt make the HX have more hp???
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by born2xLr8
Lots of people say that they can't even tell the difference between a SOHC and a VTEC. Like the others said, you don't "need" it. I wouldn't worry about it.
Lots of people say that they can't even tell the difference between a SOHC and a VTEC. Like the others said, you don't "need" it. I wouldn't worry about it.
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by Drew2k1Civ
I think VTEC is a must. I just got my head swapped from an LX head to en EX head so I could have it. I also agree with the guy that said that every lil bit helps. If your racing, that extra 13 hp or whatever it is might make the difference in gettin spanked or not.
I think VTEC is a must. I just got my head swapped from an LX head to en EX head so I could have it. I also agree with the guy that said that every lil bit helps. If your racing, that extra 13 hp or whatever it is might make the difference in gettin spanked or not.
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by jwsisme
Which 7thGen LX model doesn't have VTEC?
Which 7thGen LX model doesn't have VTEC?
Last edited by greatcasa; Apr 8, 2003 at 12:39 PM.
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by RiceRocketeer
Hmm, Just so everyone knows the HX model is VTEC... With the same amount of HP as the LX and DX..
DX- SOHC Engine, with no power. 115 HP Engine
HX- SOHC VTEC Engine, with some power but no sunroof, 115 HP Engine
LX- SOHC Engine, with all power but no sunroof, 115 HP Engine
EX- SOHC VTEC Engine, with all power, sunroof, and 127 HP Engine.
Sorry, but no one was saying the HX, and that is a car they sell, I almost got one, but wanted the power features, and at the time didn't really know or care too much what VTEC meant, and now that I know I like my Non-VTEC civic better.
I heard Non-VTEC's are easier to Turbo than VTECs... just something I heard... No offense to the VTEC owners.
RiceRocketeer
Hmm, Just so everyone knows the HX model is VTEC... With the same amount of HP as the LX and DX..
DX- SOHC Engine, with no power. 115 HP Engine
HX- SOHC VTEC Engine, with some power but no sunroof, 115 HP Engine
LX- SOHC Engine, with all power but no sunroof, 115 HP Engine
EX- SOHC VTEC Engine, with all power, sunroof, and 127 HP Engine.
Sorry, but no one was saying the HX, and that is a car they sell, I almost got one, but wanted the power features, and at the time didn't really know or care too much what VTEC meant, and now that I know I like my Non-VTEC civic better.
I heard Non-VTEC's are easier to Turbo than VTECs... just something I heard... No offense to the VTEC owners.
RiceRocketeer
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From: sacramento, California, US
Rep Power: 0 WHO CARES VTEC SUCKS
i still dont know why people make a big deal about it like its a turbo or supercharger. if you want a fast car why buy a honda. LS1 ownes i cant wait to get my hands on a firebird formula
i still dont know why people make a big deal about it like its a turbo or supercharger. if you want a fast car why buy a honda. LS1 ownes i cant wait to get my hands on a firebird formula
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by c1v1c
i have a lx nonvtec i want to make my civic vtec, is it possible, if you can how much will the vtec head cost me . and is it worth it.
i have a lx nonvtec i want to make my civic vtec, is it possible, if you can how much will the vtec head cost me . and is it worth it.
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 I didn't say the cost because one I don't know (read an estimate in another thread: close to or over the cost of a K20 swap), and two I didn't bother to find out because like I said its completely worthless to even consider that project. You might as well buy a used EX engine, exhaust system, and ECU from Japan.
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Rep Power: 0 you can get a ex engine for like $600. i say go for it and report back to use on how much you like your new "performance" engine lol lol lol lol lol lol muhahahahahahahahahaha
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From: Secane, PA (3 miles outside Philly)
Rep Power: 0 Originally posted by Southpaw7883
yo does anyone even know what they talkin bout? lol, i mean seriously...peace...southpaw...o and for the non math dudes and dudettes, its 12 hp difference...
yo does anyone even know what they talkin bout? lol, i mean seriously...peace...southpaw...o and for the non math dudes and dudettes, its 12 hp difference...
