I tried doing a search, but it looks like it’s been disabled.

Anyways, what does a 3 angle valve job entail? I’ve heard that 3 angle valve jobs are better for street driven cars while 5 angle valve jobs are more for race applications.

With a port matched Skunk2 IM, Skunk2 Stage 1’s, Skunk2 springs, Skunk2 retainers, PR3 pistons, GSR rods and a GSR crank, would I benefit from a 3 angle valve job using GSR valves?

 

A performance 3 angle valve job is better then the factory valve job because it eases the transition from the bowl to the chamber,it also usually makes the 45 deg. seat narrower then stock and opens up the area under the valve which unshrouds the back of the valve.There usually isn't room on a stock seat honda for a 5 angle unless the angles were very small.I prefer 4 angles on the int and 3 on the exh.

 

do you really gain that much from having this done or is this something that only helps if you also have the head ported and polished?

thanks man

 

No it's very benefical on it's own.

 

how much does it run ya?

 

valve jobs are between $200-$300 depening on who you go to and if it's a race or street job.

 

ohh ok thanx

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">No it's very benefical on it's own.</TD></TR></TABLE>

I wouldn't say it's 'very' beneficial... I'd say it's somewhat beneficial on an otherwise stock head.

It is $200-$300... but you need to remove the valves, might as well swap out for new valve seals while you're at it... which will increase the cost.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by X2BOARD &raquo;</TD></TR><TR><TD CLASS="quote">

I wouldn't say it's 'very' beneficial... I'd say it's somewhat beneficial on an otherwise stock head.

It is $200-$300... but you need to remove the valves, might as well swap out for new valve seals while you're at it... which will increase the cost.</TD></TR></TABLE>"Somewhat"means little or no gain,which is absolutely wrong.Up to 50% of the flow gains are realized by the correct valve job on a honda head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">"Somewhat"means little or no gain,which is absolutely wrong.Up to 50% of the flow gains are realized by the correct valve job on a honda head.</TD></TR></TABLE>

Explain more by what you mean a correct valve job

 

Some people don't know what they're doing,like a rebuilder shop,and put a valve job that might not flow any better then a stock seat.Don't get me wrong there is no one correct valve job every head and different port configuration will like a set-up all unto it's own.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">Some people don't know what they're doing,like a rebuilder shop,and put a valve job that might not flow any better then a stock seat.Don't get me wrong there is no one correct valve job every head and different port configuration will like a set-up all unto it's own.</TD></TR></TABLE>

Yep, take your head to a head specialist for the perf. valve job.

 

Let's put it another way,the factory always cuts the seats about 1/2 mm smaller then the valve diameter.So just getting a performance valve job is like getting 1/2mm oversize valves for free,it's free power sitting there.Also backcutting the int valves,more free power associated w/valve jobs.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">Let's put it another way,the factory always cuts the seats about 1/2 mm smaller then the valve diameter.So just getting a performance valve job is like getting 1/2mm oversize valves for free,it's free power sitting there.Also backcutting the int valves,more free power associated w/valve jobs. </TD></TR></TABLE>

Yep. I take my 45 to 0.004 of the Valve size on the intake.

 

I still don't see where you get the "50% flow increase" figure from ? Ok, I admit my terming of "somewhat" may be leading people to believe it's negligible (which it's not) But a simple 3 angle 'done properly' as you put it (a 3 angle is not that difficult bud, and doing one on a Honda head is no great feat) is not going to give a stock head (valve seat) some kind of magical increase in flow.... certainly not 50%. But if you have a flowbench test result that could in any way verify this... please post it. (really, I'd like to see it.. )

*I've done my own port work before, but haven't touched the valve seats myself, if anyone that does this for a living could shed some factual light... that'd be great.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by X2BOARD &raquo;</TD></TR><TR><TD CLASS="quote">I still don't see where you get the "50% flow increase" figure from ? Ok, I admit my terming of "somewhat" may be leading people to believe it's negligible (which it's not) But a simple 3 angle 'done properly' as you put it (a 3 angle is not that difficult bud, and doing one on a Honda head is no great feat) is not going to give a stock head (valve seat) some kind of magical increase in flow.... certainly not 50%. But if you have a flowbench test result that could in any way verify this... please post it. (really, I'd like to see it.. )

*I've done my own port work before, but haven't touched the valve seats myself, if anyone that does this for a living could shed some factual light... that'd be great.

</TD></TR></TABLE>You must not read very well,go back and see where it says"Up to 50% of the flow gains are realized by the correct valve job on a honda head."1/2 of the gain in flow NOT 50% more then stock. Look at my signature and tell me what I do for a living??My valve jobs are on 2 8sec Hod Rod class cars in NHRA I think I know how to do one.



Modified by fkned at 8:42 AM 1/14/2004

 

Just because you listed phone numbers in your sig doesn't tip me off that it's what you do for a living... but since you seem to be in the industry, do you have any flow bench readings to back up this statement of "Up to 50% increase" in flow ?

I mean, I would really like to see the outcome of a properly done job....

 

I guess the Ed's Racing Heads wasn't big enough for you to read.....but whatever.And you still don't get it do you,it's not 50% increase it's up to 50% of the gain from porting,for example if I picked the port up 30 cfm up to 15 cfm might be attributable to the valve job.I've already given you 2 ways even a stock size valve job is benefical here's a 3rd,the factory seat is about .100 wide.If you narrow that down to around .035-.040 that leaves enough room for a good bottom angle to better ease the transition to the seat.Since you are only able to tell me you don't believe me w/o any given reason thus far,please tell me what of the 3 things I said about valve jobs was wrong and why it doesn't help flow.


Modified by fkned at 2:25 PM 1/14/2004

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">I guess the Ed's Racing Heads wasn't big enough for you to read.....but whatever.</TD></TR></TABLE>

So because you have a business name and phone number in your sig, I must assume you work there ?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">....Since you are only able to tell me you don't believe me w/o any given reason thus far,please tell me what of the 3 things I said about valve jobs was wrong and why it doesn't help flow.</TD></TR></TABLE>

I didn't say you were wrong at any point... or do you not read well either ?

Listen guy, I asked you to provide a flow bench result and you couldn't, just say so ! Any good shop that performs porting and valve seat work would flow-test at least one of the heads they have done for hard evidence, not guesswork.

You claim you can get up to 50% of flow from the valve seat work ? GREAT.... I asked you to prove it with bench results (which I would actually be interested in seeing) but you give me attitude. I guess I'll just believe you do great headwork because you say so too ? Ok...

This: <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote"> I've already given you 2 ways even a stock size valve job is benefical here's a 3rd,the factory seat is about .100 wide.If you narrow that down to around .035-.040 that leaves enough room for a good bottom angle to better ease the transition to the seat.</TD></TR></TABLE>

This is basic information any tech school dropout could give you, bro... you still leave me with nothing... but w/e... it's all good... back OT.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by X2BOARD &raquo;</TD></TR><TR><TD CLASS="quote">I guess I'll just believe you do great headwork because you say so too ? Ok... </TD></TR></TABLE>
No this is why
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fkned &raquo;</TD></TR><TR><TD CLASS="quote">My valve jobs are on 2 8sec Hod Rod class cars in NHRA</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by X2BOARD &raquo;</TD></TR><TR><TD CLASS="quote">Listen guy, I asked you to provide a flow bench result and you couldn't, just say so ! </TD></TR></TABLE>
When you pay me is when you'll get flow sheets,do you think I just post them for whoever??
And when you make comments like this
"(a 3 angle is not that difficult bud, and doing one on a Honda head is no great feat)
Don't tell me I came with the attitude


Modified by fkned at 8:22 PM 1/14/2004

 

should you use 1mm oversized valves when you port and polish?

 

stock is fine

 

I heard you got into this industry because your name rimes with racing heads.
is this true?

 

Ed's heads....lol...funny.

Seriously guy... you don't have flow bench results to show your customers ? I know it's not cheap, but I'd think it's a testament to the great work you supposedly do.

But I don't want to pay to see expected results, so I guess you get business off of hopes and dreams. Good luck with your NHRA Hot Rods.

 

Oh don't worry ,everyone will know my name in the import secne soon enough don't worry for me pal.And take your work someplace else if it makes you sleep better at night at least I wont have to talk to you on the phone.Just so you know it's not only my opinion here's a quote from Mike Kojima's book Honda/Acura Performance.
Ed


Modified by fkned at 10:47 AM 1/15/2004