Port N Polish
20-Jul-2005, 10:56 AM
#1
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Port N Polish
Hey everyone....I've been reading the forums for a while now and everyone seems pretty knowledgable about hondas...so I wanted to ask if me doing a port n polish on a SOHC Vtec would be a good idea? A friend of mine said it has the greatest HP increase, besides turbo, or swapping the engine...what do you guys think I should do?
20-Jul-2005, 04:02 PM
#7
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Originally posted by Nova_Dust
What you can do is have a separate head and work on that little by little then swap it over. If you don't want to spend too much money at once.
What you can do is have a separate head and work on that little by little then swap it over. If you don't want to spend too much money at once.
20-Jul-2005, 04:19 PM
#8
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well while its at the machine shop get 'em to do a 3 or 5 angle valve job and maybe mill it a bit to get the compression up and hot tank it to clean 'er up good.
What Nova said about having a spare head is a must if your car is daily driven to avoid lots of down time on the car....this is how i did it and how i am currently doing it with my bottem end.
What Nova said about having a spare head is a must if your car is daily driven to avoid lots of down time on the car....this is how i did it and how i am currently doing it with my bottem end.
20-Jul-2005, 05:17 PM
#9
it's not a good idea. not for you anyways. otherwise it's a great idea.
it's not a good idea for you because your car is stock.
as to what you should do... that depends on how much power you need, how much money you got, and how you use your car.
it's not a good idea for you because your car is stock.
as to what you should do... that depends on how much power you need, how much money you got, and how you use your car.
20-Jul-2005, 06:52 PM
#11
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well granted you already have an intake, header and a free flowing exhaust, i'd say get yourself a good cam and some stiffer valve springs and titanium retainers (i'm not really sure which brand to recommend, i am more of a b-series guy) and an adjustable cam gear.
Then take your spare head to the machine shop have them hot tank it, mill it (however much a d-series needs to raise the CR 1 full point) get a valve job (3 angle or 5 angle) and if you don't feel confident enough to assemble the head have your machine shop do it.
Then get a new head gasket. I'd also recommend using a new intake manifold gasket as well. Grab some ARP headstuds while you are at it, if not, at least get new head bolts from honda.
Then there's the matter of tuning, can't forget that...uberdata, crome, hondata, vafc....whatever you decide.
Mind you this will not be cheap, at all, and for what you would pay you could have easily swapped a b-series in there and started with a stronger platform....but this isn't a "screw the d-series the b-series' are better" thread.
Then take your spare head to the machine shop have them hot tank it, mill it (however much a d-series needs to raise the CR 1 full point) get a valve job (3 angle or 5 angle) and if you don't feel confident enough to assemble the head have your machine shop do it.
Then get a new head gasket. I'd also recommend using a new intake manifold gasket as well. Grab some ARP headstuds while you are at it, if not, at least get new head bolts from honda.
Then there's the matter of tuning, can't forget that...uberdata, crome, hondata, vafc....whatever you decide.
Mind you this will not be cheap, at all, and for what you would pay you could have easily swapped a b-series in there and started with a stronger platform....but this isn't a "screw the d-series the b-series' are better" thread.
20-Jul-2005, 06:58 PM
#12
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Join Date: May 2003
Location: Ontario
Posts: 18,367
Head work can get very expensive. Afterall, if the head doesn't flow, nothing else matters.
d-series.org is your friend when it comes to SOHC tunning. They talk nothing but D series all day long. The amount of archive and information is overwhelming. Have a look.
d-series.org is your friend when it comes to SOHC tunning. They talk nothing but D series all day long. The amount of archive and information is overwhelming. Have a look.
20-Jul-2005, 11:38 PM
#14
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hey guys...just came back from work....thanks for all the replies..I want to get some good pep from my car...not into the whole street racing thing exactly...sometimes I'd go out for a blast but I dont know...do you think I should do basic stuff like intake, and headers, and intake manifold? oh and BTW...stupid question, but is it normal that I dont hear my vtec hit when im over 5000 rpm? or is it cause i have SOHC?
21-Jul-2005, 07:04 AM
#15
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as i was saying, porting is a part of the equation. if you havent done the air intake and throttle body then do them same as a header, this is manditory stuff to be done first. porting is making the head breath better, but if the other stuff is restrictive (intake and exhaust) then porting is a waste.
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
i have never heard vtec on a single cam. i know its there but i can never hear it.
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
i have never heard vtec on a single cam. i know its there but i can never hear it.
21-Jul-2005, 10:08 AM
#16
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Join Date: May 2003
Location: Ontario
Posts: 18,367
Originally posted by Steve_Leitner
as i was saying, porting is a part of the equation. if you havent done the air intake and throttle body then do them same as a header, this is manditory stuff to be done first. porting is making the head breath better, but if the other stuff is restrictive (intake and exhaust) then porting is a waste.
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
i have never heard vtec on a single cam. i know its there but i can never hear it.
as i was saying, porting is a part of the equation. if you havent done the air intake and throttle body then do them same as a header, this is manditory stuff to be done first. porting is making the head breath better, but if the other stuff is restrictive (intake and exhaust) then porting is a waste.
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
i have never heard vtec on a single cam. i know its there but i can never hear it.
23-Jul-2005, 01:55 PM
#19
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Join Date: Feb 2005
Location: Scarborough
Posts: 548
Originally posted by Steve_Leitner
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
im doing Good port jobs for $800 plus parts and thats a job i was chargeing $1200 for when i was at the shop. that includes a 3 angle valve job (dont let people talk you into a 5 angle cause you will never feel the difference) and resurfacing. a cam will be about $400 for a stg 2 Crower (new core) and springs and retainers run about $550 (made for the cam) also if we whack .033" (increasing compression about a point)off the head you will need a cam gear which is about $250. with all these mods you should notice quite a bit of difference(especially the cam).
