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what do you think about this??!! evo ix head without mivec

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Old Mar 2, 2010 | 08:03 PM
  #46  
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From: coatesville, pa
john, was that 4 or 8 1600's? (injectors) that made 1117
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Old Mar 2, 2010 | 08:40 PM
  #47  
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Originally Posted by droppedrx7
and and 800 hp or over honda, is it vtec?? no.
Simply not true. All of Honda's prized engines (B18, B16, K20A(2), F20A..etc) are all VTEC, furthermore you are confusing Honda's i-VTEC with VTEC. You see, Honda's i-VTEC uses VTC (Variable Timing Control), which was the first in the market regarding variable cam phasing, Mitsubishi was well after with MIVEC(roughly the same as Honda's i-VTEC). i-VTEC was first seen on Honda's venerable K20A 2.0L. This engine first made it's debut in 2001 in Honda's JDM Integra Type R(DC5R). The K20A was derated and outfitted with different cams which gave it the K20A2 moniker and came to the states in 2002 in a watered down version of the DC5 (Acura RSX Type S).

Case in point, 99% of your high powered Honda engines are VTEC and only the Honda engines labeled i-VTEC have VTC cam phasing.

Regarding Mitsubishi's MIVEC. It's only really needed when making lower WHP(-700WHP). At a certain point, there is no need to have the MIVEC in place, because if you're making that kind of power, there is no need to utilize cam phasing, mostly due to the fact that the engine is now tailored for a certain duty and you'll most likely have to lock the cam in a static phase and thus making MIVEC useless. It would also be best in this kind of engine set-up, to not have a oil pressure drop from MIVEC and utilize this oil pressure elsewhere. Use a set of adjustable cam gears and call it a day. Of course, you'll probably have to do this on a VIII head. As i'm not sure if MIVEC can effectively be bypassed on the IX head.
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Old Mar 2, 2010 | 09:49 PM
  #48  
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We did the 1117 on x4 1600s and a big pump with a water to air intercooler. The car also had a 4508 on it at the time.
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Old Apr 8, 2010 | 06:16 PM
  #49  
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update on the build, here is photographic proof, evo 9 head. no mivec. what we did was cut down the cam to shorten it and make it fit. removed ALL mivec parts, removed intake cam sensor, removed even the oil lines and fittings, plugged them all. drilled oil holes in head and block to lube the first couple journals and moving parts that the mivec parts used to lube. there was more than that done but that was the basics. i need to make sure my ems will read off of the exhaust sensor to read tdc for ignition reasons and hope that the only reason there was a intake cam sensor is to read where its at for mivec to control the position on it. i hope thats the only reason because its gone now. plugged the hole with a freeze plug. degreed in the cams, only have an exhaust sensor now. my only question is that that exhuast cam sensor has two "lugs" / "teeth" / "arms"?? on it and i need to know if i need to cut one off for the aem to read or leave both arms on the sensor (the curcular part that spins), like does the stock ecu read one pulse from it or is it like a daul signal because there are two arms on the piece that rotate? im lost with that. it didnt come out too bad i dont think. countless amount of time and manhours and money and prototyping and stuff. hope it works, give me your input please. also let me know this is the first time ever done! i would love to have the first of something like this. and if you know anything about the delima im having with the exhaust cam angle sensor let me know, thanks!!




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