Base model Head question.
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From: Silver Spring, MD, USA
Base model Head question.
Ok i know that the base k20 head only runs v tec on one cam, and it runs 12 valves untill 2200 rpms. I wanted to know If i swap out my cams, run a different ecu, get head ported and poleshed, and changed valve terain. Would it be just as good as a type s head?? Can some one tell me all the differences of the Base head with the type S head. Also whats the differences in the block besides pistons?? Gimme a little help im thinkin about what to do with this head...
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From: University of Massachusetts, Amherst, Ma, US of A
Re: Base model Head question. (dixie Normas7)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dixie Normas7 »</TD></TR><TR><TD CLASS="quote">Ok i know that the base k20 head only runs v tec on one cam, and it runs 12 valves untill 2200 rpms. I wanted to know If i swap out my cams, run a different ecu, get head ported and poleshed, and changed valve terain. Would it be just as good as a type s head?? Can some one tell me all the differences of the Base head with the type S head. Also whats the differences in the block besides pistons?? Gimme a little help im thinkin about what to do with this head...</TD></TR></TABLE>
well, the k20a2 and k20z1 are better internally built than our pathetic excuse for k series vtec motors. The compression ratio are a bit higher in the S motors and you prolly know that the S head has 3 cam lobes for both intake and exhaust sides making a more noticable vtec crossover. I believe with a good set of cams, Kpro, good I/H/E combo and maybe some s2000 valve springs, you'll be right up near k20a2/z1 territory. No promises. There has been a head swap before on a k20a3. Pretty much like doing an LS-VTEC. The guy that did it had to swap out the rocker arm assembley or something and needed oil squirters and some other mods. He made an extra 40whp I believe from his combo. It cost him about $1,800 in the end. I wish I could find that link.
well, the k20a2 and k20z1 are better internally built than our pathetic excuse for k series vtec motors. The compression ratio are a bit higher in the S motors and you prolly know that the S head has 3 cam lobes for both intake and exhaust sides making a more noticable vtec crossover. I believe with a good set of cams, Kpro, good I/H/E combo and maybe some s2000 valve springs, you'll be right up near k20a2/z1 territory. No promises. There has been a head swap before on a k20a3. Pretty much like doing an LS-VTEC. The guy that did it had to swap out the rocker arm assembley or something and needed oil squirters and some other mods. He made an extra 40whp I believe from his combo. It cost him about $1,800 in the end. I wish I could find that link.
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From: USAF
Re: Base model Head question. (JayDiem_k20_Dc5)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JayDiem_k20_Dc5 »</TD></TR><TR><TD CLASS="quote">
well, the k20a2 and k20z1 are better internally built than our pathetic excuse for k series vtec motors. The compression ratio are a bit higher in the S motors and you prolly know that the S head has 3 cam lobes for both intake and exhaust sides making a more noticable vtec crossover. I believe with a good set of cams, Kpro, good I/H/E combo and maybe some s2000 valve springs, you'll be right up near k20a2/z1 territory. No promises. There has been a head swap before on a k20a3. Pretty much like doing an LS-VTEC. The guy that did it had to swap out the rocker arm assembley or something and needed oil squirters and some other mods. He made an extra 40whp I believe from his combo. It cost him about $1,800 in the end. I wish I could find that link.</TD></TR></TABLE>i remember that thread too...only thing is with the a2 cams its like having an a2 head...and the 5 spd combo just doesnt matter that u have the power u cant use it effectively....better off talking to the one guy on ep hatch thats suposed to make a3 cams the powerband of the a2 and the a3 is different and the 6 spd tranny and 5 spd tranny take advantage of the powerband they are designed for....Skunk2 also now makes cams for the a3 stage one and 2 dont know much about it but researching
well, the k20a2 and k20z1 are better internally built than our pathetic excuse for k series vtec motors. The compression ratio are a bit higher in the S motors and you prolly know that the S head has 3 cam lobes for both intake and exhaust sides making a more noticable vtec crossover. I believe with a good set of cams, Kpro, good I/H/E combo and maybe some s2000 valve springs, you'll be right up near k20a2/z1 territory. No promises. There has been a head swap before on a k20a3. Pretty much like doing an LS-VTEC. The guy that did it had to swap out the rocker arm assembley or something and needed oil squirters and some other mods. He made an extra 40whp I believe from his combo. It cost him about $1,800 in the end. I wish I could find that link.</TD></TR></TABLE>i remember that thread too...only thing is with the a2 cams its like having an a2 head...and the 5 spd combo just doesnt matter that u have the power u cant use it effectively....better off talking to the one guy on ep hatch thats suposed to make a3 cams the powerband of the a2 and the a3 is different and the 6 spd tranny and 5 spd tranny take advantage of the powerband they are designed for....Skunk2 also now makes cams for the a3 stage one and 2 dont know much about it but researching
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From: University of Massachusetts, Amherst, Ma, US of A
Re: Base model Head question. (JdMK20Ahatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JdMK20Ahatch »</TD></TR><TR><TD CLASS="quote">i remember that thread too...only thing is with the a2 cams its like having an a2 head...and the 5 spd combo just doesnt matter that u have the power u cant use it effectively....better off talking to the one guy on ep hatch thats suposed to make a3 cams the powerband of the a2 and the a3 is different and the 6 spd tranny and 5 spd tranny take advantage of the powerband they are designed for....Skunk2 also now makes cams for the a3 stage one and 2 dont know much about it but researching</TD></TR></TABLE>
nice, I'll be looking into skunk2 for my valvetrain now. I'd recommend Crower too, but not too sure if they are for the a3.
A 6spd tranny swap would be a great investment if you drive back and forth on the highway like me or like going fast and having the luxury of another gear in your top end.
nice, I'll be looking into skunk2 for my valvetrain now. I'd recommend Crower too, but not too sure if they are for the a3.
A 6spd tranny swap would be a great investment if you drive back and forth on the highway like me or like going fast and having the luxury of another gear in your top end.
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