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I have a 2001 dx, and i swapped the enigine for a vtec! My dad did the swap while i'm stuck here in Iraq! the thing is he said he didnt have to switch my ecu.... is that right? is it even possible? I wanna make sure this wont be a big problem before I install my SF turbo kit! Thanx!

 
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you will need a ex euc. dx ecu won't enangeg vtec.

 
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I think Xproductions (I think that's his username) used a VAFC to control VTEC on an LX ECU/EX head.

 
Rep Power: 285

vtec controller p3wns you

 
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You mean VAFC II???
I don't think VAFC works on our engine.

 
Rep Power: 380

an ex engine will run perfectly on a dx ecu, its just that the low- hi change over won't engage. im running an ex computer on a dx ecu with a vafcII, and the change over works fine.

 
Rep Power: 285

so ur dad did an entire engine swap!? Waste of time IMO when all ya had to do were swap the heads. True Ex have higher compression, but for 12hp, big woot

 
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do you already have the sf kit?

 
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my dad, called honda and they said all 01 up civics are vtec.... that can't be right? (and for your info i bombed my last engine)... and yes I already have my SF kit! So saying it's vtec, but i chose to use my current ecu, will I really lose all that much power considering I'm boosting?

 
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this is just crazy.

DX and LX dont have Vtec. You can use a DX or LX bottom, with an EX head and have Vtec, which dont mean much. You can use your old ECU as long as you get a VAFCII. So you can set the Vtec engagement or something. It is probably like your running the same motor right now, and it wont feel much different after you get a VAFC II. You can get an EX ECU, but have to get your keys reflashed. Hopefully you understand all this.