SHAVING HEAD

[X2]

DOOD... flow benches are NOT the be all answer to porting... any fewl can get flow bench numbers from hogging out a head !

just a few years ago, we had no dyno to even test real results, so how in the world can anyone make a claim like that ? max flow numbers say nothing about real world driveability.

[havokkk]

DOOD... flow benches are NOT the be all answer to porting... any fewl can get flow bench numbers from hogging out a head !

agreed! not suggesting that flow benches are but science complements any and all of these 'black arts'.

max flow numbers say nothing about real world driveability.

max flow numbers absolutely do not... just as max power and torque numbers don't on dyno-charts. but no one can deny dynos are amazingly useful in the building of quick project cars...

can you build a quick car/port cylinder heads without a chassis dyno/flow bench? sure! we've no awd dyno, for example, yet we've really quick sti's and evos about. that said... most, if not all, sti and evo owner would relish the opportunity to strap their beasts to the dyno's rollers... not withstanding all they've accomplished

being able to quantify results allows for the collection of hard data which, coupled with experience and innovation, can set the bar quite high!

[stephanweaver]

^ well said.

[ziig]

DUDE..............if you took the time to read my posts you would see that in one of my post I mentioned flow bench testing is a static number and is only a guide if your curious about progress.......once you get the number it is going to be different in the car as this becomes a dynamic struture and pulses will change performance drastically.
I have done all kinds of professional racing , including a year in UK building Formula Ford engines with the best builder in the UK and he didnt know anything about porting a toyota head.....I did it for him and he was very impressed..NOT tring to boast........I am mearly stating that even though he was great at one thing he wasnt perfect.....and he had flow testing equipment but no previous experience in porting imports....which I had...so time to do any R&D was useless...........the car was fast by the way.......... :wink:
ANY way you guys all have your strenghts too and there are things we can learn from each other so insteadof tring to knock each other down why dont we all work together and share and learn from each other mistakes...................any way lets not stray from the topic ....as seems to be the case always on these forums.......I may not post any more for sake of my own peace .................but I am always wiling to share and assist and learn when I can..........

[ziig]

DOOD... flow benches are NOT the be all answer to porting... any fewl can get flow bench numbers from hogging out a head !

agreed! not suggesting that flow benches are :D but science complements any and all of these 'black arts'.

max flow numbers say nothing about real world driveability.

max flow numbers absolutely do not... just as max power and torque numbers don't on dyno-charts. :D but no one can deny dynos are amazingly useful in the building of quick project cars...

can you build a quick car/port cylinder heads without a chassis dyno/flow bench? sure! we've no awd dyno, for example, yet we've really quick sti's and evos about. that said... most, if not all, sti and evo owner would relish the opportunity to strap their beasts to the dyno's rollers... not withstanding all they've accomplished :D

being able to quantify results allows for the collection of hard data which, coupled with experience and innovation, can set the bar quite high! :D

WELL SAID!!!!

[X2]

ziig... no need to get all flustered...

you basically said local porters are on par with international talent. I understand you have worked with international pro racing mechanical talent, and you're not the only one. I have worked alongside some tremendously skilled individuals in the US, granted they specialized in USDM manufactured vehicles, their skill translated well to the Honda heads I was working with. These guys I worked with are not dedicated mechanics, they modify heads for a living.... there is a big difference... you cannot expect a performance mechanic to have in depth knowledge of flow characteristics, bowl design, valve angles and so on....

It is my dead honest opinion that there is no way a local porter can compete on the same level as those in other countries... I mean with limited access to materials, tools, experience and theory... not to mention the insanely small professional local racing community (lack of demand)... it sounds like hopes and dreams.

Like I said... anyone can port a head and make top end power.... despite all the fancy talk about flow numbers and quick local cars, there seems to be very little to no solid proof. Maybe 20 years ago, when no one knew wtf to do with a rotary, this assumption would work, but today... if the work was so damn good, I doubt so many people would constantly look abroad for their porting needs.

But I digress... this thread is supposed to be about head milling.... don't do it... unless you need to or want to kill a perfectly good stock head.

[stephanweaver]

^^^ 5 Stars!

[katurbobeast]

bamboo machine on mucarapo.rd do good work....