We take a look at the differences between an MED Road Competition cylinder head and MED Series 6 race cylinder head. www.med-engineering.co.uk
Жүктеу.....
Пікірлер: 58
@haroldgodwinson8323 жыл бұрын
Absolutely beautiful. I had a fast road 1275 Cooper S back in the day. It was a beaten-up ex-rally machine with straight cut gears, a DCOE Weber, 3 into one exhaust, some head work and a really wild locally produced (NZ) cam. As I recall it developed 92 HP according to the dyno I used. Not that great by todays standards but fabulous back then. It made so much noise it completely drowned-out the outside world. It was amazing.
@duffield55aj4 жыл бұрын
I am retired now, but when I was in my teens I was building Min's and Mini engines, and working the heads myself to, as I started life as an apprentice mechanical engineer. I had a boss that let me do the machining is my time and in those days we was still doing work in imperial and CNC's was a thing of the future. I have built and rebuilt cars for a hobby when I had time from running an engineering company myself. I have been thinking of doing another hot Mini and will consider these heads. Will pay MED a visit if I go ahead with it.
@jonnycsuperplumb7655 жыл бұрын
Great tech vid...showing how much work goes into the race heads 🏁👍🏻
@pasha123435 жыл бұрын
Very interesting guy , I have learnt a lot from these videos ! Great keep up the great work 👍
@Limeayy5 жыл бұрын
I've got a dirty mind and i kept thinking... "Road Head"... LOL
@ma61king
5 жыл бұрын
Came here just to comment that, looks like you beat me to it
@Limeayy
5 жыл бұрын
@@ma61king l0l0l
@Uswesi15273 ай бұрын
Experience is the critical difference between success and failure, … winning and losing, … being untouchable.
@bernardwarr418725 күн бұрын
Fantastic work and standard
@montedaestrada3563 Жыл бұрын
So what is the real power advantages of the 2 heads?
@dfcvda4 жыл бұрын
..This is art
@avivscrewvalla4 жыл бұрын
Still relevant given you've changed your road head process from owner supplied to a pre-made casting? Regardless, would be very useful to know what sort of horsepower increase one can expect from the road head.
@MEDEngineeringTechVideos
4 жыл бұрын
We use standard original Rover castings now for the road heads, simply to save time and keep the cost down, as the used castings can take a day of remedial work before even starting on the modifications.
@bryantear19535 жыл бұрын
Do you have your own heads cast now or is there still plenty about? Amazing to see that the A series is still being developed after so many years and the components you now are manufacturing. I used to come down and have bits done 30 years ago by you guys on my mini engine then on my Kent x flow when I moved up to a mk 2 harrier. I have now subscribed so will be looking forward to more!
@stevewelborn87445 жыл бұрын
Very nice work.
@jasonschagt65275 жыл бұрын
Great video. Have a couple questions though. Have you tried to make the exhaust exit port a D-shape and the intake port a Oval shape ? Right know the intake port looks like a 460ci Big Block Ford head, and to me the intake port and bowl looks a little too smooth. But otherwise a great video with lots of useful information
@MEDEngineeringTechVideos
5 жыл бұрын
Yes we've extensively tested since the 1980s.
@jasonschagt6527
5 жыл бұрын
@@MEDEngineeringTechVideos cool. I know the WD Allis tractor cylinder head has the same intake and exhaust port layout like your cylinder heads and was gonna do some R&D on it by making the exhaust have a D-shape and the intake a oval like the big block chevy Pro Stock intake port. That is why I was wondering if you tried it before. You do great work on your cylinder heads
@chrishedley56674 жыл бұрын
make a crossflow
@alexandertouchdown87373 жыл бұрын
Great video! What does one achieve when offering valve guides? Is it to compensate for oversized valves?
@MEDEngineeringTechVideos
3 жыл бұрын
Yes it means we can install very large valves in the head.
@dustinwolfe95915 жыл бұрын
I had to assume someone else would have beat me to the road head comment
@avivscrewvalla4 жыл бұрын
Are road heads available on your website? Can’t see any but race heads
@MEDEngineeringTechVideos
4 жыл бұрын
We've taken them off temporarily to keep up with demand, as the waiting list is a bit long.
@alchemistoxford5 жыл бұрын
Why better results from a road head for a road engine?
@no66
5 жыл бұрын
Better air speed at at lower revs.
@alchemistoxford
5 жыл бұрын
@@no66 Why?
@no66
5 жыл бұрын
@@alchemistoxford because tve ports and valves are smaller. Bigger isnt allways better on a road car. You want the engine to pull nicely from low revs and up. A race engine is going an at hight revs most of the time
@alchemistoxford
5 жыл бұрын
@@no66 Thanks for this attempt, but your explanation remains obscure. What is a tve port? Why do smaller ports enable better pulling power at low revs?
@MEDEngineeringTechVideos
5 жыл бұрын
Cedric has it spot on. Big ports are only effective when the engine requires it. Typically on a competition A-series, this is at high rpm. The smaller ports will give better results on the majority of road engines.
@philhill79734 жыл бұрын
Could you use a race head on a road engine?
@MEDEngineeringTechVideos
4 жыл бұрын
Yes. But it's not a great idea.
@dfcvda4 жыл бұрын
MED fast road head on my 1991 Mini, opinions pls
@MEDEngineeringTechVideos
4 жыл бұрын
Ideal, if it's a 1275 engine. We do not machine the 998 heads.
@patrickdean97973 жыл бұрын
are these heads for a mini?
@MEDEngineeringTechVideos
3 жыл бұрын
Yes, or MG Midget/Sprite
@patrickdean9797
3 жыл бұрын
@@MEDEngineeringTechVideos thank you for taking the time to answer my question
@killahkay21125 жыл бұрын
do you guys only focus on Mini engines ?
@MEDEngineeringTechVideos
5 жыл бұрын
Yes, A-Series and B-Series engines are our speciality.
@killahkay2112
5 жыл бұрын
@@MEDEngineeringTechVideos I'm looking for someone to do this to and L16 engine .
@richardseales6784 Жыл бұрын
FULL RACE HEADS
@2011metalmaniac5 жыл бұрын
whats the advantage of dry decking?
@MEDEngineeringTechVideos
5 жыл бұрын
More even cooling across the cylinders.
@jimmywim
5 жыл бұрын
Their video that explains how to do it is also explaining the benefits: kzread.info/dash/bejne/mKOT2bGGoNKof8o.html
@LGT9195 жыл бұрын
Damn someone beat me to it
@danielkirk72814 жыл бұрын
You have road head then you have extreme road head
@philipblackmore60284 жыл бұрын
Very interesting but, is that chatter I see.
@MEDEngineeringTechVideos
4 жыл бұрын
Where?
@philipblackmore6028
4 жыл бұрын
@@MEDEngineeringTechVideos The large hole which has been counter-bored to accept the coolant into the head.
@MEDEngineeringTechVideos
4 жыл бұрын
@@philipblackmore6028 no it's the finish from the milling tool.
@philipblackmore6028
4 жыл бұрын
@@MEDEngineeringTechVideos yes, you are correct, it's called chatter. I severed my time as a machinist. I have been retired now for six years. I know chatter when I see it.
@MEDEngineeringTechVideos
4 жыл бұрын
@@philipblackmore6028 ok
@richardcraniumdicksinn39595 жыл бұрын
Race heads are faster but nothing beats road head.
Пікірлер: 58
Absolutely beautiful. I had a fast road 1275 Cooper S back in the day. It was a beaten-up ex-rally machine with straight cut gears, a DCOE Weber, 3 into one exhaust, some head work and a really wild locally produced (NZ) cam. As I recall it developed 92 HP according to the dyno I used. Not that great by todays standards but fabulous back then. It made so much noise it completely drowned-out the outside world. It was amazing.
I am retired now, but when I was in my teens I was building Min's and Mini engines, and working the heads myself to, as I started life as an apprentice mechanical engineer. I had a boss that let me do the machining is my time and in those days we was still doing work in imperial and CNC's was a thing of the future. I have built and rebuilt cars for a hobby when I had time from running an engineering company myself. I have been thinking of doing another hot Mini and will consider these heads. Will pay MED a visit if I go ahead with it.
Great tech vid...showing how much work goes into the race heads 🏁👍🏻
Very interesting guy , I have learnt a lot from these videos ! Great keep up the great work 👍
I've got a dirty mind and i kept thinking... "Road Head"... LOL
@ma61king
5 жыл бұрын
Came here just to comment that, looks like you beat me to it
@Limeayy
5 жыл бұрын
@@ma61king l0l0l
Experience is the critical difference between success and failure, … winning and losing, … being untouchable.
Fantastic work and standard
So what is the real power advantages of the 2 heads?
..This is art
Still relevant given you've changed your road head process from owner supplied to a pre-made casting? Regardless, would be very useful to know what sort of horsepower increase one can expect from the road head.
@MEDEngineeringTechVideos
4 жыл бұрын
We use standard original Rover castings now for the road heads, simply to save time and keep the cost down, as the used castings can take a day of remedial work before even starting on the modifications.
Do you have your own heads cast now or is there still plenty about? Amazing to see that the A series is still being developed after so many years and the components you now are manufacturing. I used to come down and have bits done 30 years ago by you guys on my mini engine then on my Kent x flow when I moved up to a mk 2 harrier. I have now subscribed so will be looking forward to more!
Very nice work.
Great video. Have a couple questions though. Have you tried to make the exhaust exit port a D-shape and the intake port a Oval shape ? Right know the intake port looks like a 460ci Big Block Ford head, and to me the intake port and bowl looks a little too smooth. But otherwise a great video with lots of useful information
@MEDEngineeringTechVideos
5 жыл бұрын
Yes we've extensively tested since the 1980s.
@jasonschagt6527
5 жыл бұрын
@@MEDEngineeringTechVideos cool. I know the WD Allis tractor cylinder head has the same intake and exhaust port layout like your cylinder heads and was gonna do some R&D on it by making the exhaust have a D-shape and the intake a oval like the big block chevy Pro Stock intake port. That is why I was wondering if you tried it before. You do great work on your cylinder heads
make a crossflow
Great video! What does one achieve when offering valve guides? Is it to compensate for oversized valves?
@MEDEngineeringTechVideos
3 жыл бұрын
Yes it means we can install very large valves in the head.
I had to assume someone else would have beat me to the road head comment
Are road heads available on your website? Can’t see any but race heads
@MEDEngineeringTechVideos
4 жыл бұрын
We've taken them off temporarily to keep up with demand, as the waiting list is a bit long.
Why better results from a road head for a road engine?
@no66
5 жыл бұрын
Better air speed at at lower revs.
@alchemistoxford
5 жыл бұрын
@@no66 Why?
@no66
5 жыл бұрын
@@alchemistoxford because tve ports and valves are smaller. Bigger isnt allways better on a road car. You want the engine to pull nicely from low revs and up. A race engine is going an at hight revs most of the time
@alchemistoxford
5 жыл бұрын
@@no66 Thanks for this attempt, but your explanation remains obscure. What is a tve port? Why do smaller ports enable better pulling power at low revs?
@MEDEngineeringTechVideos
5 жыл бұрын
Cedric has it spot on. Big ports are only effective when the engine requires it. Typically on a competition A-series, this is at high rpm. The smaller ports will give better results on the majority of road engines.
Could you use a race head on a road engine?
@MEDEngineeringTechVideos
4 жыл бұрын
Yes. But it's not a great idea.
MED fast road head on my 1991 Mini, opinions pls
@MEDEngineeringTechVideos
4 жыл бұрын
Ideal, if it's a 1275 engine. We do not machine the 998 heads.
are these heads for a mini?
@MEDEngineeringTechVideos
3 жыл бұрын
Yes, or MG Midget/Sprite
@patrickdean9797
3 жыл бұрын
@@MEDEngineeringTechVideos thank you for taking the time to answer my question
do you guys only focus on Mini engines ?
@MEDEngineeringTechVideos
5 жыл бұрын
Yes, A-Series and B-Series engines are our speciality.
@killahkay2112
5 жыл бұрын
@@MEDEngineeringTechVideos I'm looking for someone to do this to and L16 engine .
FULL RACE HEADS
whats the advantage of dry decking?
@MEDEngineeringTechVideos
5 жыл бұрын
More even cooling across the cylinders.
@jimmywim
5 жыл бұрын
Their video that explains how to do it is also explaining the benefits: kzread.info/dash/bejne/mKOT2bGGoNKof8o.html
Damn someone beat me to it
You have road head then you have extreme road head
Very interesting but, is that chatter I see.
@MEDEngineeringTechVideos
4 жыл бұрын
Where?
@philipblackmore6028
4 жыл бұрын
@@MEDEngineeringTechVideos The large hole which has been counter-bored to accept the coolant into the head.
@MEDEngineeringTechVideos
4 жыл бұрын
@@philipblackmore6028 no it's the finish from the milling tool.
@philipblackmore6028
4 жыл бұрын
@@MEDEngineeringTechVideos yes, you are correct, it's called chatter. I severed my time as a machinist. I have been retired now for six years. I know chatter when I see it.
@MEDEngineeringTechVideos
4 жыл бұрын
@@philipblackmore6028 ok
Race heads are faster but nothing beats road head.