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The cost of matched inlets
- Thread starter Waitey
- Start date
Waitey
ClioSport Club Member
Alpina D3, AC Cobra
Sure guys. Its not some dodgy back street place. They are very skilled guys.
They made this for my MX-5. Skyline fitment turbo downpipe adaptor. I told them when i wanted and they designed it and made the CAD program and made it for me all for £30!
They made this for my MX-5. Skyline fitment turbo downpipe adaptor. I told them when i wanted and they designed it and made the CAD program and made it for me all for £30!
e92 + E46 M3 + Cup
Fook thats cheap!
"Navy" N17 TWO
That's what I'm thinking too lol
must be very small if they charge £8.33 per hour....
have you actually given them the parts to work? or was it a verbal discussion about matching inlets in general?
either way, get some pics up when its done.
b/g 182, meg tourer
+1
Angel works did mine, was happy with the result :approve:
Before :
After :
Doesnt look like its fully ported to me
So who exactly just machines the opening ??
e92 + E46 M3 + Cup
Doesnt look like its fully ported to me
Its not, hence why there called angelworks matched inlets & not angelworks ported inlets
James
Waitey
ClioSport Club Member
Alpina D3, AC Cobra
Yep they've got them. They're just doing them in down time as i'm not in a hurry for them.
Do they do a drive-in service?
The location is ideal, can't seem to find anyone who do it round are way.
Waitey
ClioSport Club Member
Alpina D3, AC Cobra
I doubt it. They have a lot of big work on. They make huge corn hoppers as well as custom agricultural stuff. The car stuff is just a hobbie of the owner.
F4R
someone can tell me the exactly steps to do it,?I'm very interested maybe my turner can helps me but i need the steps
THANKS
THANKS
M
mini-valver
The size of the runners isn't the issue, so porting the whole thing will make little, if any difference. You may even find it has a negative effect. You still have the same size head ports, making the manifolds equal to those and have no steps/variation in the runner mating (maching them to each other) is where you gain.
RS RIP
the runners on the "RS" manifolds are wider all the way through and when the non "RS" manifolds are matched the bend in the runner is still small/more narrow than the one on a RS one..
M
mini-valver
Yeas but you still get the same results with both.....
As said the runner size is fine, the match is very poor.
Just clean them up, get rid of as many casting faults as possible on the entry to the port and get the sizes correct for a good match. That'll give you as good a result as you're going to get out of the standard manifold.
Cheers
M
Just clean them up, get rid of as many casting faults as possible on the entry to the port and get the sizes correct for a good match. That'll give you as good a result as you're going to get out of the standard manifold.
Cheers
M
This quite simply shows that the internet is a terrible place, but a fantastic example of 'a little knowledge is a dangerous thing'.
The typical attitude to 'porting' is bigger is better, and that is a very 1970's thought process. With airflow management (which is a better term for what we are aiming to do with cylinder heads/induction systems) the aim is to deliver the required air mass at the correct velocity with the least pumping and efficiency loss. Does this mean honk out as much ally as you can? If your a simpleton yes.
Big ports mean one thing.........for the finite level of mass that the stock inlet manifold can deliver, which will be no more than a few percent between variations, you will have a lower air speed index in critical areas......and quite simply put, that means lower cylinder filling.
Why do I not 'port' (god I hate that term) the whole length?
Because it is counter productive and gains nothing. I have done enough of these manifolds and invested enough time into preparing a modification which provides all that is required and converting it to a CNC process. If you wanted the whole runner done, expect higher prices and less torque.......and maybe 1-2bhp peak extra. And as far as I'm concerned.....2bhp peak is of very little use when the ratio of torque change is higher than the ratio at lower rpm in a higher gear......simply put....less m/s2.
The RS manifolds are larger throughout yes.......but they also tend to make the least torque out of all the 'finished' modified manifold combinations, as they lower airspeed around the critical bend in the manifold. So just dont be one of those internet people who's thought process go about as far as 'oooh its shiny all the way through'.
In high level motorsport, your likely to be fired for wasting company time 'cleaning up' a rough cnc finished inlet/cylinder head.
The typical attitude to 'porting' is bigger is better, and that is a very 1970's thought process. With airflow management (which is a better term for what we are aiming to do with cylinder heads/induction systems) the aim is to deliver the required air mass at the correct velocity with the least pumping and efficiency loss. Does this mean honk out as much ally as you can? If your a simpleton yes.
Big ports mean one thing.........for the finite level of mass that the stock inlet manifold can deliver, which will be no more than a few percent between variations, you will have a lower air speed index in critical areas......and quite simply put, that means lower cylinder filling.
Why do I not 'port' (god I hate that term) the whole length?
Because it is counter productive and gains nothing. I have done enough of these manifolds and invested enough time into preparing a modification which provides all that is required and converting it to a CNC process. If you wanted the whole runner done, expect higher prices and less torque.......and maybe 1-2bhp peak extra. And as far as I'm concerned.....2bhp peak is of very little use when the ratio of torque change is higher than the ratio at lower rpm in a higher gear......simply put....less m/s2.
The RS manifolds are larger throughout yes.......but they also tend to make the least torque out of all the 'finished' modified manifold combinations, as they lower airspeed around the critical bend in the manifold. So just dont be one of those internet people who's thought process go about as far as 'oooh its shiny all the way through'.
In high level motorsport, your likely to be fired for wasting company time 'cleaning up' a rough cnc finished inlet/cylinder head.
Airflow management is complex, and the days of just opening out ports and manifolds are gone. If it was still the case then you can get anything extrude honed for pennies.
If people truely understood then they wouldn't complain at £50/hr labour rates for top level 'porters'....its back breaking skilled work......whereas £70-120/hr for a plumber in london or a accountant to fill out basic tax forms for you is fine......
If people truely understood then they wouldn't complain at £50/hr labour rates for top level 'porters'....its back breaking skilled work......whereas £70-120/hr for a plumber in london or a accountant to fill out basic tax forms for you is fine......
so so true!
