head work [guide] Page 3
111 posts • Page 3 of 4 • 1, 2, 3, 4
Re: head work
dangerousdave wrote:i can use a cnc but its only a small ( 1m bed) 4 axis one, so would prob be unsuitable!... im on it next week making my inlet adaptor ive spent the last 2 nights drawing up
you would need to hand port the fist one then progarm the cnc
- crazycage
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Re: head work
As caged said you can just stick one in a CNC and do the work
A head is ported by hand
Then tested on a flow bench to get the desired flow
Head is placed in a 5 axis CNC machine were a probe scans the port and combustion chamber and the information is kept in the CNC memory
A unmodified head is mounted in the CNC and copy's the hand ported head
CNC head are good for the people that are selling ported heads as a great time saver
You really need to Lean and understand air flow within a cylinder head and lean how to port a head and then get/make a flow bench to see how good your work is
A head is ported by hand
Then tested on a flow bench to get the desired flow
Head is placed in a 5 axis CNC machine were a probe scans the port and combustion chamber and the information is kept in the CNC memory
A unmodified head is mounted in the CNC and copy's the hand ported head
CNC head are good for the people that are selling ported heads as a great time saver
You really need to Lean and understand air flow within a cylinder head and lean how to port a head and then get/make a flow bench to see how good your work is
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
yeah i program it easy enough, could prob do it on the 4 axis one but it will prob take a little time to setup 'conquering device' on!
but ive seen a video of a six axis miller (or machining centre there sometimes called now) porting a head sweet
but ive seen a video of a six axis miller (or machining centre there sometimes called now) porting a head sweet
- dangerousdave
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Re: head work
Any progress CC?
If you lived near me then i would stick it on my flowbench for free just to see what it would do
If you lived near me then i would stick it on my flowbench for free just to see what it would do
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
freak power wrote:Any progress CC?
If you lived near me then i would stick it on my flowbench for free just to see what it would do
tbh i havent been near it for the last two weeks im going to take the head into work and cut it in half to see the wall thickness of the ports ,i need to get hold of a standard head to start on for my car.
where do you live in in the north west, what kind of flow bench is it ?
- crazycage
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Re: head work
Leeds and i will soon have a PTS/68 hybrid flowbench capable of 600cfm's if i get the right motors
Superflow's are just to much to buy brand new or even second hand
Superflow's are just to much to buy brand new or even second hand
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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- Joined: Tue Jan 08, 2002 12:00 am
- Location: Leeds
Re: head work
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
- Elite Post Master
- Posts: 1748
- Joined: Tue Jan 08, 2002 12:00 am
- Location: Leeds
Re: head work
Any news on the head?
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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- Joined: Tue Jan 08, 2002 12:00 am
- Location: Leeds
Re: head work
Ok here is a BASIC guide for you
-------------------------------------------------------------------------------------WARNING-----------------------------------------------------------------------------------------
THIS IS A GUIDE ONLY, I WILL NOT BE HELD RESPONSIBLE FOR PERSONAL INJERY OR DAMAGE TO ANY CYLINDER HEADS DONE BY FOLLOWING THIS GUIDE, IF YOU ARE UNSURE THEN PLEASE SEND THE HEAD TO A SPECIALIST FOR THE WORK TO BE DONE.
Right lets get started
Health and safety is very important so get yourself some eye protection and a dust mask at least. You don't want aluminium swarf in your eyes or in your lungs from the dust produced by the emery cloth from the finishing.
The tools
Over the many years of doing head work you pick up you own ways of doing things and you make your own tools also but the the main tool you need is a air die grinder or a electrical one thats capable of 25,000 rpms, the one you will see I'm using is a electrical one. Don't even bother with a drill with a flex shaft as at the most it will run about few thousands rpm's and is only able to run at less than a hour before it starts to over heat if your lucky.
Here is what i use
http://www.axminster.co.uk/product.asp?pf_id=792327&name=die+grinder&user_search=1&sfile=1&jump=48
http://www.axminster.co.uk/product-Axminster-Heavy-Duty-Flexible-Drive-Unit-20091.htm
Here is a few things you will need
As you can see some of the stuff is self explanatory and some not but all of it will be covered as i go though this thread
Carbide burrs
I found that the good ones can last a life time if looked after, i Paid £25+ for each of these but i'm doing this a lot so the cheaper ones will be fine for you
http://www.cromwell.co.uk/quicksearch?search=carbide+burrs&x=0&y=0
Cartridge roll test kit
Used for some of the head to reach places
http://www.cromwell.co.uk/YRK2059800K
Scotchbrite/emery cloth roll, Flap sander, Scotchbrite roll, split rod to use with emery cloth and two of my tools i made for making sure the ports and round, smooth and uniformed and one that i use the most as to replace the emery cloth is easy and cheaper than the flap wheels.
flap wheel and scotchbrites found at www.rdgtools.co.uk
Emery cloth 60 grit, 120 grit, 180 grit and 400 grit
[url=http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&binCount=38&[ERRR]=4294957561&N=4294962344+4294776144]http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&binCount=38&[ERRR]=4294957561&N=4294962344+4294776144[/url]
spring calipers set is used to make sure every port is the same size and that each port is the same diameter run though
Found at any machine mart
Spring compressor, this is a great little one that fits zetec, I4 and even Vag 20v head with small tappets, its light and come with different size fitting
Also found at machine mart
Oil seal removal tool, loads better that a pair of pliers, trust me if you ever come to dismantling a 20v Vag head or motor bike head these are a must
I got these cheap on ebay at £20 they have been modified to get a small bore tappet holes.
When dismantling the head you want to keep every valve component in the right order they came out of as that part is worn matched to the guide, if fitting new valves some time new guides and seats need recutting, if the old parts go back in the wrong order they will wear out faster. This is just a bit of MDF with holes drilled in it marked with what cylinder and valve number
Digital caliper, i will show you what this is used for later in the thread
Also found in machine mart
Magnetic pick up tool for when you remove the collets
Found in most Halfords and motor spares shop
Head stand for disassemble and reassembling the head as this will make things much easier. found very cheap on Ebay
You've now stripped you head and you've keep everything in order what you need to do next is clean the head and inspect it for any damage, seeing most of you will be reading this to do work on there I4 then you will be looking for cracks. You don't want to be doing hours of work on a head to find out its cracked and rendered useless.
When cleaning a head your best getting one of these but if not a old tube with lots of hot soppy water, a jet wash is another or your mother/other half dish washer.
You could also use brick acid or oven cleaner on stubborn dirt
Right your about to start
Its not the easiest to see what your doing so some sort of light is needed the brighter the better, You can also in the picture a vacuum cleaner to keep the dust down
At this point if its a head i've never worked on i will make a mould of the port with silicone rubber to see were the restrictions are but this is something you wont be doing as its one of the advanced side of head portering.
Right what are the bits that can be removed to increase flow, the guide is one but if the guide is short in the first place then you don't want to shorten it as this will increase wear anyway this one is small and fine to flatten and make flush with the port wall.
The next this is the siemese split on this 16v head
Go round the head check the head and see where you could break though into the water jacket, you don't want that to happen, just use a scribe and your finger to get a idea
When starting take a look at were the seat its and don't grind it or the head will be scrap
If you cant see it because of carbon build up then do a bit of valve grinding with some engineering blue
You can now see a light grey line were the seat is
Use a correct size burr for the size of the port, too big of a burr in the port can snag in a sharp corner of a port and break damaging the head or yourself. This is were the best of the performance will come just behind the valve.
Keep the tool moving, don't stop in one place as you will get a uneven surface
Take it out to the valve seat were the valve sits
DON'T MAKE THE SEAT TO SLIM ON THE I4 AS THEY NEED BIGISH SEATS BECAUSE OF THE HEADS ARE PRONE TO CRACKS BECAUSE OF HEAT
Tapper the port here making it flat will loose you bhp
Use lube to cool the burr as it works best when cool and it will look after the burr
Check your work all the time, stop and blow away all chipping with a blow gun
This is were the caliper comes in
take note of the size of the port and repeat on the rest of the ports
Before you started the head will look like this
Before
And what its looks like after
After
I've opened the port a bit more on this head to match the gasket line
Repeat on the rest of the ports checking port sizes and valve seats as you go
Thats the main cutting done
Right emery cloth time
You can see other restrictions that can be removed with emery cloth or a flap wheel, starting with a 60 grit
As again keep the tool moving and use WD40 to keep its lubricated
Take a look at your work and this is what is should look like
Now i swap tools to the one i made to do the ports, it make it easier to open the ports all the way though and not at the ends. Now with a 120 grit cloth.
You can also use a split rod with emery cloth in it
When doing the exhaust ports i spend more time on them and take out more metal than i would on the inlet ports, There tends to be less work done at the factory on the exhaust ports for economies of scale leaving more scope for gains, its is especially important with turbo engines as this will give better spool up for the turbo.
Here is what the the port should look like
Going over the port with a scotchbrite to finish off the port
I normally finish off the inlet port with 120 grit and the exhaust with 180 grit and depending on the engine i might go over the exhaust port with 400 grit to stop carbon build up
Going back to my own tool again i use it to clean up the manifold face
The same goes for the exhaust side so just repeat the steps above one that side
Next step with be modifying the combustion chamber and removing valve shrouding
Right now we go onto the combustion chamber
Most people that do head work over look the chamber and leave it as standard but not me or some others out there.
Why are we doing this? Valve shrouding.. Whats thats you ask.
Anything thats near the valve head is shrouding
As seen below near the spark plug, also we are smoothing the chamber to stop carbon build up
Right this is what you need to smooth the chamber
Find some old valves and ground the face down
Place them in the head and as you can see the valves sit lower in the head
Using your tools seen on page one start to sand down the chamber
As you can see whats been done now
As before start with a 60 grit and work your way down 80, 120 and then 400
Standard
Modified
Once thats done you need to CC the chambers to make sure there all the same and if not you need to even them up
( no pictures of this as i forgot )
Cleaning the valves
Us a wire wheel to get the worst off
Then stick the valve in a piller drill and lube it up and use some 80 grit emery cloth
When there all done its time to lap the valves in with a grinding stick or if you do loads of head like i do then i use a drill but dont run it to fast and make sure the valve steam is lubed up when in the guide.
Now thats all done its time for a skim
Just to finish off when it comes to the rebuild use some good quality engine assembly lube/paste that can be found on ebay, use loads on the valve before you install them and lots of you cam/cams, tappets/lifter and cam caps
The last thing you need to do is give the head a skim as i bet when you work on your head you will most likely scratch of scuff the face.
Also seeing it is at the machine shop you may want to get the seats recut depending on the head it may also be a good idea to get the seats recut to 3 or 5 angles
The finished this ready to be sent out to the customer
If people like this then i might go on to flow bench work and how to use one and make your own flow bench and design your own software
-------------------------------------------------------------------------------------WARNING-----------------------------------------------------------------------------------------
THIS IS A GUIDE ONLY, I WILL NOT BE HELD RESPONSIBLE FOR PERSONAL INJERY OR DAMAGE TO ANY CYLINDER HEADS DONE BY FOLLOWING THIS GUIDE, IF YOU ARE UNSURE THEN PLEASE SEND THE HEAD TO A SPECIALIST FOR THE WORK TO BE DONE.
Right lets get started
Health and safety is very important so get yourself some eye protection and a dust mask at least. You don't want aluminium swarf in your eyes or in your lungs from the dust produced by the emery cloth from the finishing.
The tools
Over the many years of doing head work you pick up you own ways of doing things and you make your own tools also but the the main tool you need is a air die grinder or a electrical one thats capable of 25,000 rpms, the one you will see I'm using is a electrical one. Don't even bother with a drill with a flex shaft as at the most it will run about few thousands rpm's and is only able to run at less than a hour before it starts to over heat if your lucky.
Here is what i use
http://www.axminster.co.uk/product.asp?pf_id=792327&name=die+grinder&user_search=1&sfile=1&jump=48
http://www.axminster.co.uk/product-Axminster-Heavy-Duty-Flexible-Drive-Unit-20091.htm
Here is a few things you will need
As you can see some of the stuff is self explanatory and some not but all of it will be covered as i go though this thread
Carbide burrs
I found that the good ones can last a life time if looked after, i Paid £25+ for each of these but i'm doing this a lot so the cheaper ones will be fine for you
http://www.cromwell.co.uk/quicksearch?search=carbide+burrs&x=0&y=0
Cartridge roll test kit
Used for some of the head to reach places
http://www.cromwell.co.uk/YRK2059800K
Scotchbrite/emery cloth roll, Flap sander, Scotchbrite roll, split rod to use with emery cloth and two of my tools i made for making sure the ports and round, smooth and uniformed and one that i use the most as to replace the emery cloth is easy and cheaper than the flap wheels.
flap wheel and scotchbrites found at www.rdgtools.co.uk
Emery cloth 60 grit, 120 grit, 180 grit and 400 grit
[url=http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&binCount=38&[ERRR]=4294957561&N=4294962344+4294776144]http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&binCount=38&[ERRR]=4294957561&N=4294962344+4294776144[/url]
spring calipers set is used to make sure every port is the same size and that each port is the same diameter run though
Found at any machine mart
Spring compressor, this is a great little one that fits zetec, I4 and even Vag 20v head with small tappets, its light and come with different size fitting
Also found at machine mart
Oil seal removal tool, loads better that a pair of pliers, trust me if you ever come to dismantling a 20v Vag head or motor bike head these are a must
I got these cheap on ebay at £20 they have been modified to get a small bore tappet holes.
When dismantling the head you want to keep every valve component in the right order they came out of as that part is worn matched to the guide, if fitting new valves some time new guides and seats need recutting, if the old parts go back in the wrong order they will wear out faster. This is just a bit of MDF with holes drilled in it marked with what cylinder and valve number
Digital caliper, i will show you what this is used for later in the thread
Also found in machine mart
Magnetic pick up tool for when you remove the collets
Found in most Halfords and motor spares shop
Head stand for disassemble and reassembling the head as this will make things much easier. found very cheap on Ebay
You've now stripped you head and you've keep everything in order what you need to do next is clean the head and inspect it for any damage, seeing most of you will be reading this to do work on there I4 then you will be looking for cracks. You don't want to be doing hours of work on a head to find out its cracked and rendered useless.
When cleaning a head your best getting one of these but if not a old tube with lots of hot soppy water, a jet wash is another or your mother/other half dish washer.
You could also use brick acid or oven cleaner on stubborn dirt
Right your about to start
Its not the easiest to see what your doing so some sort of light is needed the brighter the better, You can also in the picture a vacuum cleaner to keep the dust down
At this point if its a head i've never worked on i will make a mould of the port with silicone rubber to see were the restrictions are but this is something you wont be doing as its one of the advanced side of head portering.
Right what are the bits that can be removed to increase flow, the guide is one but if the guide is short in the first place then you don't want to shorten it as this will increase wear anyway this one is small and fine to flatten and make flush with the port wall.
The next this is the siemese split on this 16v head
Go round the head check the head and see where you could break though into the water jacket, you don't want that to happen, just use a scribe and your finger to get a idea
When starting take a look at were the seat its and don't grind it or the head will be scrap
If you cant see it because of carbon build up then do a bit of valve grinding with some engineering blue
You can now see a light grey line were the seat is
Use a correct size burr for the size of the port, too big of a burr in the port can snag in a sharp corner of a port and break damaging the head or yourself. This is were the best of the performance will come just behind the valve.
Keep the tool moving, don't stop in one place as you will get a uneven surface
Take it out to the valve seat were the valve sits
DON'T MAKE THE SEAT TO SLIM ON THE I4 AS THEY NEED BIGISH SEATS BECAUSE OF THE HEADS ARE PRONE TO CRACKS BECAUSE OF HEAT
Tapper the port here making it flat will loose you bhp
Use lube to cool the burr as it works best when cool and it will look after the burr
Check your work all the time, stop and blow away all chipping with a blow gun
This is were the caliper comes in
take note of the size of the port and repeat on the rest of the ports
Before you started the head will look like this
Before
And what its looks like after
After
I've opened the port a bit more on this head to match the gasket line
Repeat on the rest of the ports checking port sizes and valve seats as you go
Thats the main cutting done
Right emery cloth time
You can see other restrictions that can be removed with emery cloth or a flap wheel, starting with a 60 grit
As again keep the tool moving and use WD40 to keep its lubricated
Take a look at your work and this is what is should look like
Now i swap tools to the one i made to do the ports, it make it easier to open the ports all the way though and not at the ends. Now with a 120 grit cloth.
You can also use a split rod with emery cloth in it
When doing the exhaust ports i spend more time on them and take out more metal than i would on the inlet ports, There tends to be less work done at the factory on the exhaust ports for economies of scale leaving more scope for gains, its is especially important with turbo engines as this will give better spool up for the turbo.
Here is what the the port should look like
Going over the port with a scotchbrite to finish off the port
I normally finish off the inlet port with 120 grit and the exhaust with 180 grit and depending on the engine i might go over the exhaust port with 400 grit to stop carbon build up
Going back to my own tool again i use it to clean up the manifold face
The same goes for the exhaust side so just repeat the steps above one that side
Next step with be modifying the combustion chamber and removing valve shrouding
Right now we go onto the combustion chamber
Most people that do head work over look the chamber and leave it as standard but not me or some others out there.
Why are we doing this? Valve shrouding.. Whats thats you ask.
Anything thats near the valve head is shrouding
As seen below near the spark plug, also we are smoothing the chamber to stop carbon build up
Right this is what you need to smooth the chamber
Find some old valves and ground the face down
Place them in the head and as you can see the valves sit lower in the head
Using your tools seen on page one start to sand down the chamber
As you can see whats been done now
As before start with a 60 grit and work your way down 80, 120 and then 400
Standard
Modified
Once thats done you need to CC the chambers to make sure there all the same and if not you need to even them up
( no pictures of this as i forgot )
Cleaning the valves
Us a wire wheel to get the worst off
Then stick the valve in a piller drill and lube it up and use some 80 grit emery cloth
When there all done its time to lap the valves in with a grinding stick or if you do loads of head like i do then i use a drill but dont run it to fast and make sure the valve steam is lubed up when in the guide.
Now thats all done its time for a skim
Just to finish off when it comes to the rebuild use some good quality engine assembly lube/paste that can be found on ebay, use loads on the valve before you install them and lots of you cam/cams, tappets/lifter and cam caps
The last thing you need to do is give the head a skim as i bet when you work on your head you will most likely scratch of scuff the face.
Also seeing it is at the machine shop you may want to get the seats recut depending on the head it may also be a good idea to get the seats recut to 3 or 5 angles
The finished this ready to be sent out to the customer
If people like this then i might go on to flow bench work and how to use one and make your own flow bench and design your own software
Last edited by freak power on Thu Jul 08, 2010 10:52 pm, edited 3 times in total.
- freak power
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- Location: Leeds
Re: head work
freak power wrote:Any news on the head?
yes its done and been on the engine for the last 3k doing about 370hp @19psi on my little gt28 pulled a 123mph terminal last month at the pod with a fooked box and really slow gear changes .
- crazycage
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Re: head work
Bit late with the guide above then lol
Go's better don't you think with that valve set up don't you think
Go's better don't you think with that valve set up don't you think
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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- Location: Leeds
Re: head work
freak power wrote:Bit late with the guide above then lol
Go's better don't you think with that valve set up don't you think
lol no worries ,it makes interesting reading for manny people i would think .
yeah its going well for a home built and home mapped car
but i kept the standard size valves for now but i will be building a drag only engine for next year that will have bigger valves and a much bigger turbo 500hp will be the target
- crazycage
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Re: head work
very nice guide there, very comprehensive.
this needs to be added to the guides section
this needs to be added to the guides section
- Ruishy1
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Re: head work
Ruishy1 wrote:very nice guide there, very comprehensive.
this needs to be added to the guides section
I'm sure a mod or admin will do so
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
yeah a good read! might give it a go one day
- dangerousdave
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Re: head work
if you plan on doing it yourself then be very careful and try on a scrap head
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
would it not be beter to run a reamer through the valve guides after, incase of burrs on the lip after grinding it down
- Ruishy1
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Re: head work
no need for a reamer, the finer cloths normal cleans them up
Thank you excursion
Thank you excursion
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
great guide and lovely work
- FRSJON
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Re: head work
That's a fantastic guide, really enjoyed reading through that
Not sure I'd attempt it myself yet, however I do have a couple of only Zetec heads I could certainly practice with, so possibly!
Definitely needs to go in the guides section
Out of interest, what do you typically charge for that sort of work?
Not sure I'd attempt it myself yet, however I do have a couple of only Zetec heads I could certainly practice with, so possibly!
Definitely needs to go in the guides section
Out of interest, what do you typically charge for that sort of work?
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Re: head work
Smo wrote:what do you typically charge for that sort of work?
As i'm not a trader on here i'm not allowed to say
PM me
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work
FRSJON wrote:great guide and lovely work
All done on a ST170 head too
Now driving a 1999 Audi S3 with 2.1 20v OD HTAGT3582r Turbo
Bring on the 650+Bhp 4x4 monster
Bring on the 650+Bhp 4x4 monster
- freak power
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Re: head work [guide] Page 3
If you have any questions then please post them here or PM me
- freak power
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Re: head work
[quote="freak power"][quote="FRSJON"]great guide and lovely work :Q[/quote]
All done on a ST170 head too[/quote]
keeping that in mind for the future
All done on a ST170 head too[/quote]
keeping that in mind for the future
- FRSJON
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Re: head work [guide] Page 3
I'll have to do a guide on a CVH
- freak power
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Re: head work [guide] Page 3
Will be starting a CVH one next week
- freak power
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Re: head work [guide] Page 3
Could someone have a look at my post as i've edited it and now the picture won't show?
- freak power
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Re: head work [guide] Page 3
[quote="freak power"]I'll have to do a guide on a CVH[/quote]
hey mate, did you do a cvh head atall?
thanks
hey mate, did you do a cvh head atall?
thanks
- soundboy93
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Re: head work [guide] Page 3
Not yet as i'm still waiting for the person to send it to me to be worked on
It will be posted when its done
It will be posted when its done
- freak power
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Re: head work [guide] Page 3
okay mate, thankyou in advance then :]
about the coding problem; it says at the side 'BBcode is OFF' could you/thread starter have possibly disabled it somehow?
about the coding problem; it says at the side 'BBcode is OFF' could you/thread starter have possibly disabled it somehow?
- soundboy93
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Re: head work [guide] Page 3
I was unable to do a CVH head yet sorry
May be some time
May be some time
- freak power
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- freak power
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Re: head work [guide] Page 3
Well it looks like i will be doing a CVH head soon so i'll post a how to on that when done
- freak power
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Re: head work [guide] Page 3
Thats nice!
- Wittmann
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