port+polish

General engine questions/issues that aren't specific to the other categories
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port+polish

By Ej2-B16a
- Fri Nov 09, 2007 7:29 am #29196 how much can you mess up on port/polishing intake/exhaust heads.. (if u dont go deep at all?)
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By LowTEC-Derbo
- Fri Nov 09, 2007 7:54 am #29198 if it is not laminar..increases turbulent flow causing slower velocities. =X


but i'm not even sure what your question is..What do you mean MESS UP?

ps. did you read my thread :P
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By teal_dx
- Fri Nov 09, 2007 3:01 pm #29211 From what I've seen you post so far, I would not attempt to do this yourself. Save up and send the head out to a machine shop and upgrade valves & have them throw a cam in while your at it :thumb:

Just don't do THIS :lol:
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By yashep
- Fri Nov 09, 2007 3:30 pm #29217
teal_dx wrote:Just don't do THIS :lol:

:o :shock: :?: :jawdrop: Do you guys think that someone might be so dumb to really do this??? If this is real the Honda dude most really hate his "friend"or is a mediocre tunner. I'll never take my car to his shop.
I think I'm ready to nominate the dumbest person of the year :lol: and Mr. runner-up :lol: :x :lol: .
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By Ej2-B16a
- Fri Nov 09, 2007 7:37 pm #29238 see man.. if you hold back, youl never learn anything.

iv watched many heads get ported. im good with my hands, i know where the limits are not to go over.. i duno, definetly seems like a good weekend project....

all i was askin is. is there any of those common errors that you can make?

that maybe your not even noticing or something?
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By teal_dx
- Fri Nov 09, 2007 8:10 pm #29241 Honda heads flow pretty well as-is. I'd learn on a spare so you can still drive your car. And you'll really need to test the flow as well to see if you made any progress. (instead of assembling, disassembling, draining oil, coolant, and using head gaskets every time to test it on your engine)
So figure you buy a spare head, all the porting tools, pay for before & after testing, and if your time is worth anything to you... it's a lot less of a hassle to just have one built so it is done right the first time. if porting & polishing a head didn't involve any kind of knowledge and experience, we would all be doing it ourselves :hehe:
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By Ej2-B16a
- Fri Nov 09, 2007 8:21 pm #29247 :? so is that a go? or no lol
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By york62
- Fri Nov 09, 2007 9:30 pm #29251
B16nintyfiveCoupe wrote::? so is that a go? or no lol


yes do it its a great idea!! :thumb:
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By ohDirka
- Fri Nov 09, 2007 10:21 pm #29261
york62 wrote:
B16nintyfiveCoupe wrote::? so is that a go? or no lol


yes do it its a great idea!! :thumb:


x2
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By Ej2-B16a
- Fri Nov 09, 2007 10:39 pm #29262 lol watch me ruin my head.. ahhh naw. jk ok well im prolly gonna rip the head off on monday.. wil see.. i gatta replace my timin belt and waterpump anyways.. will keep u guys posted.
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By BAXTER_EJ1
- Fri Nov 09, 2007 10:51 pm #29264 :eekdance:
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By BurqueB16
- Fri Nov 09, 2007 10:54 pm #29265 were u really the "honda friend" Graham!? :lol: :lol:
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By suspendedHatch
- Fri Nov 09, 2007 11:33 pm #29268 Read some of the articles over at Endyn aka The Old One.

If it's N/A, you're much more likely to do more harm than good.

Experiment on a cheap spare heads. Throw away non-VTEC heads would be great.

Do you even have any tools? Books? Plan on this taking you at least a year to learn and many many junked heads along the way.

Better flow doesn't give you more power, and a flowbench can't tell you whether you're gaining power or losing it.
Last edited by suspendedHatch on Sun Nov 11, 2007 6:53 pm, edited 1 time in total.
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