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-   -   port and polish (http://www.azht.net/forum/showthread.php?t=115881)

mr.lsvtec 12-25-2009 07:02 PM

port and polish
 

honduh_head 12-26-2009 09:57 AM

yes use it. then start building the block for more displacement,and more compression to utilize that head.

king06 12-27-2009 11:19 AM

X2

Don't forget some good all motor cams.

I Hate Import Cars 12-31-2009 01:32 AM

Okay, first of all, try using punctuation... Just a suggestion, it makes it easier to understand what you're saying...

Secondly, porting for boosted motors is different than for n/a motors. Reason being that with a forced induction motor, you have air being FORCED into the cylinders, so how it will flow in under vacuum is relatively inconsequential. On the other hand, with an n/a motor, vacuum is the only thing pulling air into the cylinders, so ya, you want it to go into those cylinders as quickly and as smoothly as possible.

Just remember, when porting for n/a applications, bigger isn't nessicerily (sp?) better, and in most cases, hogging the shit out of the bowls and ports will KILL your airflow.

But in any case, BALANCE is the name of the game, which is why porting should always be done by an experienced porter with a flow bench to check their work.

Charlee 12-31-2009 02:30 AM

it really comes down to what YOU need the car to do.(where do you want your torque??) if you want a port that can only live above 5k and have a na horsepower mill, go for it, just in the street it will not work. its all where you want your torque. whats usable on the street or whatever you intend. ports will do diddly nothing if they are not matched with he correct cam either. people think that by getting "bigger" cams they will get more power (same with he ports), thats not always the case. while they may see some increases in peak power, other rpm get affect because too much compression is bleeding out and engine efficiency goes south. sure you can throw a big port head with a big cam and a fat turbo and make tons of peak power, but it will suck as a daily.your gas mileage will suck. FI ports are usually smaller if they are intended for street. good low end and more efficient combustion events. you can defiantly shift up your torque up if you want little more power, but boost is almost always gives a good powerband on the street, specially on a fwd honda. they breathe amazing for a production engine. poor flow charateristics and velocity will lead to detonation. thats a BIG nono for a snailed engine.
a lot of people dont realize how well engineered honda motors are. no pun intended to the op.

honduh_head 12-31-2009 09:57 AM

good post charlee. guys make crazy power on stock ports and boost...so the stock heads are def badass

that one guy 12-31-2009 10:39 AM

The head is only ported on the intake side. There is a LOT of material taken away, it goes all the way around the valve stems and down... def a professional port job the head isn't stamped but lots of good info here, I wasn't aware of the differences between PnP for all motor vs. boost. But I'll try to take some pics for you I forgot to last night.

I Hate Import Cars 12-31-2009 05:31 PM

Well said. Basically what I was getting at, I was just too lazy to type all that. But very well said.

Awesome, but pictures aren't going to do much good. You can't really look at a port job and tell anything about it. You need to have it flowed on a flow bench by someone who knows what they're doing.

mr.lsvtec 12-31-2009 08:36 PM

Where can I get that. Done

honduh_head 01-04-2010 01:27 PM

machine shop's that do port and polishing usually have a flow bench.

Charlee 01-04-2010 04:41 PM

endyn yo shit!!!

gunsup0331 01-06-2010 09:07 AM

i think i saw a flowbench at CBA in chandler, we have one at school but we dont have the shit for a 4 valve head apparently

that one guy 01-07-2010 03:59 PM

dam v8's

honduh_head 01-08-2010 10:20 AM

v8's have 4 valves too.... :idiot:

that one guy 01-08-2010 01:41 PM

oh snap, sorry Im a noob when it comes to v8s. the heads I've seen at machine shops and such usually have 2 valves. but never ripped one apart personally, guess I should just =x

honduh_head 01-08-2010 01:56 PM

all mach1's, cobras, ford gt's from 98 - up have 4 valve heads. ferraris have them as well. usually are found in OHC heads and not push rod motors.

Dead Bird 01-08-2010 01:57 PM

Fucking mustangs

honduh_head 01-08-2010 02:01 PM

yup, the technology is there, but none of the balls to make it work correctly.

Dead Bird 01-08-2010 02:07 PM

they needs vtex

that one guy 01-08-2010 03:10 PM

my buddy has a mustang with vtec


honduh_head 01-08-2010 03:52 PM

:facepalm:

Dead Bird 01-08-2010 05:50 PM

:facepalm:
:facepalm:

adam 01-08-2010 08:44 PM

They had to point out that it was staged. Wow.

:facepalm:
:facepalm:
:facepalm:

EFfective 01-08-2010 09:26 PM

:facepalm:
:facepalm:
:facepalm:
:facepalm:

Charlee 01-09-2010 11:09 AM

lol dammit

mr.lsvtec 01-12-2010 05:26 PM

not very good pics but the best i could get

BDD 01-13-2010 09:47 AM

I personally wouln't use that head. It look's like an "square port" or someone tried to copy it, hard to tell from the pics. I dought that is a Portflow head I've never seen him put out a square port before.

honduh_head 01-13-2010 12:59 PM

try again with better light and no flash.

mr.lsvtec 01-13-2010 06:12 PM

how bout these pics

gunsup0331 01-13-2010 07:22 PM

call around and have someone put it one a flowbench. Good luck finding someone who can accurately do a little honda head


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