# What to expect $$ wise for some head work **URL:** \ **Category:** NYSpeed Automotive\ **Created:** [September 27, 2005, 10:21pm UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797 "2005-09-27T22:21:39Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\ **Post date:** [September 28, 2005, 7:16am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/21 "2005-09-28T07:16:44Z")
> [@catalyst](#): > > This is not the answer to everything. > > When I did a P & P on my head I just cleaned up the casting, knife edged a little and rounded a little. After reading about it and what not I felt confident doing that little bit of work. Not counting the air compressor (which someone already had) I spent less that $100 on tools, and the small stand I built to hold the head at a nice angle. While I agree, That’s about all that can / should be done @ home. IMO, cleaning up casting flash and shit isn’t equivalant to porting a head. Much as I hate to say it JnJ is making sense :crap:, Unless the time and money is spent to make a noticable improvement in flow charactoristics and chamber shape - whats the point? Now, if Viper just wants to waste an ‘extra’ head… so be it. It’s his wallet. Let him waste his winter. :gotme: ---
**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\ **Post date:** [September 28, 2005, 7:17am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/22 "2005-09-28T07:17:54Z")
damnit, zero beat me while replying. ---
**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\ **Post date:** [September 28, 2005, 7:19am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/23 "2005-09-28T07:19:53Z")
> [@catalyst](#): > > You guys make it sound like this stuff is rocket science which it is not. A simple homemade flow bench, basic measurement equipment and his tools can turn out a decent head. It’s not like there is a porting god that only bestows the gift to certain people. What’s the point in doing it if You’re not going to do it properly? Improving flow numbers by 30-40% \> then making a “decent” head. ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 7:22am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/24 "2005-09-28T07:22:01Z")
> [@Zer0DazE](#): > > you put your backyard head up against an Endyn head and we will see which one flows better. Mine would be sufficient for street and track use. Plus, mine would be significantly cheaper. ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 7:23am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/25 "2005-09-28T07:23:16Z")
> [@Nikuk](#): > > What’s the point in doing it if You’re not going to do it properly? Improving flow numbers by 30-40% \> then making a “decent” head. I didn’t put any numbers in my post so how do you know what I consider a “decent” head? ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [September 28, 2005, 7:25am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/26 "2005-09-28T07:25:01Z")
> [@catalyst](#): > > You guys make it sound like this stuff is rocket science which it is not. A simple homemade flow bench, basic measurement equipment and his tools can turn out a decent head. It’s not like there is a porting god that only bestows the gift to certain people. ive heard enough about “xyz ported my head and said it flows 457cfm @.050” and when the head was actualy tsted by that person at a local shop, it flowed WORSE then stock overall head porting isnt rocket sciences, its ART … art is way fucking harder then rocket science and a homemade flow bech has to be about as accurate as a homemade micrometer, and would be worthless at testing the portjob under varying atmospheric loads , or for checking the swirl inthe combustion chambers ---
**Author:** ![Zer0DazE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zer0daze/32/7624_2.png) [@Zer0DazE](https://forums.speedlife.net/u/Zer0DazE)\ **Post date:** [September 28, 2005, 7:27am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/27 "2005-09-28T07:27:00Z")
^ bs, i port heads on the same table i eat my breakfast. 🙂 ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 7:28am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/28 "2005-09-28T07:28:46Z")
With the right knowledge a homemade flow bench can be accurate. Since when does it matter where something is made? The question is how was it made, right? ---
**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\ **Post date:** [September 28, 2005, 7:41am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/29 "2005-09-28T07:41:11Z")
> [@catalyst](#): > > I didn’t put any numbers in my post so how do you know what I consider a “decent” head? I’ve got $100 bill that is Your’s if You can port your own aluminum head, at home, with a homade flowbench and make the thing flow 35% better then stock on a professional bench. -Nick ---
**Author:** ![Zer0DazE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zer0daze/32/7624_2.png) [@Zer0DazE](https://forums.speedlife.net/u/Zer0DazE)\ **Post date:** [September 28, 2005, 7:43am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/30 "2005-09-28T07:43:14Z")
oh, a call out. with money. ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 7:51am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/31 "2005-09-28T07:51:09Z")
Lol, Well I would need more than $100 to do this, and I wouldn’t do it to mine own head cause it flows enough for 500hp stock and I will never be near 500hp. ---
**Author:** ![Nikuk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nikuk/32/7254_2.png) [@Nikuk](https://forums.speedlife.net/u/Nikuk)\ **Post date:** [September 28, 2005, 7:53am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/32 "2005-09-28T07:53:17Z")
Why?? I thought it was soooo easy? ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 8:33am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/33 "2005-09-28T08:33:33Z")
Set me up with a garage, compressor, money to build the flow bench, a head, and pay for the before and after tests and I will take a shot at this. I never said it would be easy, I am just pointing out that it can be done without having to pay a shitload of money. ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [September 28, 2005, 8:57am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/34 "2005-09-28T08:57:13Z")
i consider " a shitload of money" to be: “spending more to do it yourself then to pay to have a shop do it” i consider “a great price” to be: “paying less to do it yourself then to pay a shop to do it” sounds like you building a flowbench would be option A ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 9:12am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/35 "2005-09-28T09:12:42Z")
Well in this case it wouldn’t be worth it to do all this work to win $100 dollars. I am pretty sure an accurate flow bench would be less than $500. You can build an injector flow bench for around the same money as well. ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [September 28, 2005, 9:21am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/36 "2005-09-28T09:21:21Z")
> [@Nikuk](#): > > Much as I hate to say it JnJ is making sense :crap: Why do you hate to say it, my advice is pretty sound in the performance dept. Also in regards to the homemade flow bench, what do you plan on using a Shopvac and maybe some water and vinyl tubing. You know there is a reason something like this cost good money I would say the chances of someone reading a book and producing a good head that out flows stock and every port and is the same on every port is 1:10,000 if not more ---
**Author:** ![catalyst](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/catalyst/32/7279_2.png) [@catalyst](https://forums.speedlife.net/u/catalyst)\ **Post date:** [September 28, 2005, 9:22am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/37 "2005-09-28T09:22:55Z")
> [@JnJSpdShop](#): > > I would say the chances of someone reading a book and producing a good head that out flows stock and every port and is the same on every port is 1:10,000 if not more Yeah if they don’t take any measurments of what they are doing. ---
**Author:** ![Viper966](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/viper966/32/7268_2.png) [@Viper966](https://forums.speedlife.net/u/Viper966)\ **Post date:** [September 28, 2005, 9:36am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/38 "2005-09-28T09:36:57Z")
yea inever really said iw as gonna start shaping ports and shit, just clean it up, the stock hyundai castings are horrible ---
**Author:** ![HotRodKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/hotrodkid/32/7609_2.png) [@HotRodKid](https://forums.speedlife.net/u/HotRodKid)\ **Post date:** [September 28, 2005, 10:37am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/39 "2005-09-28T10:37:07Z")
> [@catalyst](#): > > Well in this case it wouldn’t be worth it to do all this work to win $100 dollars. I am pretty sure an accurate flow bench would be less than $500. You can build an injector flow bench for around the same money as well. injectors flow liquid, and liquid is easy to collect in viles … making it easy to pick out which injectors match which by letting them spray for a set amount of time flowing air is much more complex then liquid shooting out of an orifice ---
**Author:** ![Zer0DazE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zer0daze/32/7624_2.png) [@Zer0DazE](https://forums.speedlife.net/u/Zer0DazE)\ **Post date:** [September 28, 2005, 10:39am UTC](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797/40 "2005-09-28T10:39:51Z")
> [@Viper966](#): > > yea inever really said iw as gonna start shaping ports and shit, just clean it up, the stock hyundai castings are horrible > [@Viper966](#): > > i want to cut a stock cyl head in half to have a look inside to see just how much material i can take off it during the porting process sounds to me like you want to get crazy on a head. if you are thinking of removing so much material that you might get into a water passage, then you are in over your head for a first time / one time project. [Previous page](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797.md?page=1) [Next page](https://forums.speedlife.net/t/what-to-expect-wise-for-some-head-work/2797.md?page=3)