like topic says...on a stock gsr with ITR cams/cai/h/e rest remain stock...

well regarless certain upgrade what the minimum expected hp again from port and polish work...

 

ttt...any general info or just a noob question...

 

stress about the valve job more when dealing with NA.
port and polish only makes a considerable difference on a hardcore drag race NA setup or forced induction.

 

Definately a newb question.

Try: https://honda-tech.com/zerothread?id=996667

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BryanPendleton &raquo;</TD></TR><TR><TD CLASS="quote">Definately a newb question.

Try: https://honda-tech.com/zerothread?id=996667</TD></TR></TABLE>

yup noob want to learn too...

 

Why is this a noob question? I have seen 20+whp from a port and polish, with supporting mods and a good tune.

 

yay, link to my thread

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Waachback &raquo;</TD></TR><TR><TD CLASS="quote">Why is this a noob question? I have seen 20+whp from a port and polish, with supporting mods and a good tune.</TD></TR></TABLE>

Because if you have to ask how much power from a P&P, you have no concept of what is done or the capacity of what can be done, or why it alters engine output and the fact that the possbilities are INFINITE.

Its equavilent to asking how much power from turbo.

 

Hmm I guess thats why hes asking?...

 

noobs of america, UNITE!

 

Yea, teach the man so he doesnt go hang himself. Learn the boy'

 

lol~~it is possible to get an average of a port and polish hp gain on an all motor vehicle with basic mods..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spaceman &raquo;</TD></TR><TR><TD CLASS="quote">lol~~it is possible to get an average of a port and polish hp gain on an all motor vehicle with basic mods..</TD></TR></TABLE>
You hit the nail on the head there....Thats all this guys is asking for and all these smart *** kids can do is call him a noob...

 

well technically you really don't want to polish anything port wise, however there is some pretty big holes in your question like displacement, and tuning done after, setup, how much and how far and in what shape it's all done. I've seen between 8-40 depending on all of this N/A.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FF lotus &raquo;</TD></TR><TR><TD CLASS="quote">well technically you really don't want to polish anything port wise, however there is some pretty big holes in your question like displacement, and tuning done after, setup, how much and how far and in what shape it's all done. I've seen between 8-40 depending on all of this N/A.</TD></TR></TABLE>

These are Honda PGMFI engines, not your pops 69 Chevelle. Smooth surface means faster speed; faster speed = velocity = key ingredient to NA power.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Waachback &raquo;</TD></TR><TR><TD CLASS="quote">
....and all these smart *** kids can do is call him a noob... </TD></TR></TABLE>

Actually, I believe he called himself a noob. I just agreed.

My recommendation is find a head shop to do your work. Then explain your application and what you would like done, and if they are experienced with the Honda head, they should be able to provide some ballpark figures.

 

i dont think anything are noob or newbie...there are so many stuffs that we want to know....want to know by asking a general questions...but general questions tend to **** people off becuase they think that they are superior, they think they know alot and doesnt take the time to explain...

WHO'S NOT A NOOB BEFORE, RISE YOUR HAND...

 

1-3hp on that setup, from big name head guys that do hondas all day

-2-(-)6hp from a local port guy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nathan atwell &raquo;</TD></TR><TR><TD CLASS="quote">

These are Honda PGMFI engines, not your pops 69 Chevelle. Smooth surface means faster speed; faster speed = velocity = key ingredient to NA power.</TD></TR></TABLE>

Typical response... Typical WRONG response. You do not want mirror-smooth surfaces throughout. Smoother is not always faster. Don't argue, just accept. It will make you sound less dumb.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yeegsr &raquo;</TD></TR><TR><TD CLASS="quote">i dont think anything are noob or newbie...there are so many stuffs that we want to know....want to know by asking a general questions...but general questions tend to **** people off becuase they think that they are superior, they think they know alot and doesnt take the time to explain...

WHO'S NOT A NOOB BEFORE, RISE YOUR HAND... </TD></TR></TABLE>

Nothing wrong with being a noob. Yes we were all there once. If I recall correctly I forwarded him to a link to that would provide him some good general knowledge.

 

There are very few Honda O.G's on this board so calling someone a newb is laughable

I've been invovled with them since 95 and I know plenty of people doing it considerably longer

"These are Honda PGMFI engines, not your pops 69 Chevelle. Smooth surface means faster speed; faster speed = velocity = key ingredient to NA power."

No dipshit the key ingredient is fuel. Air is only the catalyst to burn it. Porting is not to increase velocity on the intake but to stuff as much air into the combustion chamber as possible and then having the engine tuned to add the approriate amount of fuel.

Exhaust ports are done to increase velocity

I've done cleanup work a few times myself but after seeing some 2k race heads and some far more exotci F1 CNC work I feel my efforts are infantile at best.

 

Smooth surface means faster speed; faster speed = velocity = key ingredient to NA power. This is not true You actuall want a smaller port to keep up velocity And a smooth surface will actuall hurt you

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ludesleep &raquo;</TD></TR><TR><TD CLASS="quote">Smooth surface means faster speed; faster speed = velocity = key ingredient to NA power. This is not true You actuall want a smaller port to keep up velocity And a smooth surface will actuall hurt you</TD></TR></TABLE>

A: your making a very general statement - Generally all you can really do with out a windtunnel with a moving road surface which only formula teams can afford is to remove restrictions. How the restrictions are removed or dealt with comes down to experience and that's why people pay big money. A bigger port may actually benefit you if that's the restriction (however on many Honda heads except the newer ITR's and RSXR which have CNC head designs most of what's being done is port matching the IM and Intake ports to basically the same size allthough some head experts use stepping methods ect and to clean up the casting flash from the original sand casting). Uusually when you jump beyond 1K in price you get into rewelded compustion chambers ect, also the valvetrain is hopefully upgraded as well depending on the level of work

B: By saying smooth it's kind of misleading. What you should be saying is polished which I think most head places think makes less power as it does not mix the air and fuel as well as a lightly textured port which is still pretty smooth

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ludesleep &raquo;</TD></TR><TR><TD CLASS="quote"> And a smooth surface will actuall hurt you</TD></TR></TABLE>

Air speed and Velocity are two differant things,

smooth ports will speed up air speeds, this is a good thing if you keep your velocity up.

a good smooth port with Velocity is what you want

 

Smooth surface will hurt you? Damm I guess all these years of researching various sites was a waste of time...