Try to blow air through every port and leave a piece of paper on every other port for comarrison, that's the most simple DIY flow test. If what you are explaining is correct, you should see results, it would be a nice video to watch.
well, these M52 welded ones are welded inside so You have to weld those pipes outside, then You can grind off welding inside so they will be totally fine comparing M50 ones...
Yes, we smoothend the welds inside and didn't reinforce it from outside little crack appeared but after little reinforcement welding it is all good. I think the m52 route is better after this small mod. And also you have to plug the lambda sensor holes.
I have euro manifold. I don't remember if the size is different but when I compared them I came to conclusion that m52 is better. One different is that there isn't that connecting port between the cylinders 2 and 3 in the euro model.
One question that might sounds dumb. But I ordered a manifold and I wanna make sure it’s right. But does it make a huh difference if I put an m50 exhaust manifold on an s52 engine? I realized the engine is bigger on the s52 so I’m not sure if it’s gonna go great when I crank it. Any help?
You must not understand air flow. I have a porting degree and a degree in air flow design and I can tell you everything this guy said is true. They flow better and they deal with the heat and have much better efficiency.
@@dissolverussia4842 I'm a Certified Industrial Hygienist with a specialty in ventilation (air flow). Without measuring volume and velocity this is just someone's opinion. Show me the $$$.
@@masscomnet ever heard of Joe mondelo? The godfather of of cylinder head porting. That's is who I was trained by and have a degree from him specifically In cylinder air flow and port design. He is no longer with us but I can tell you that dude is correct about the m50 manifold and the advantages it has over the m52 header. Sorry I don't have any money for you but I have straight up facts. Also I just got back from my local pick and pull and saw both and will be pulling that m50 manifold tomorrow as and will be installing a n52 exhaust I built from all stock parts.
@@masscomnet for example the m52 manifold has the major issue of the air fighting against each other vs the m50 that don't have that issue. Second the m50 exhaust will transfer the heat better then the m52 manifold which affects the way the air flows out of the cylinder head. 3rd the exhaust cast manifold has enough material to remove for a good port shape that will also help with flow. The only disadvantage the m50 manifold has is its ugly compared to the m52.
@@masscomnet The main difference between the M50 intake and the M52 intake is that the M50 intake holes are each 10mm larger than the M52’s. That is about .39 inches for each bore. Because of this difference, the air flow from the air filter to the intake will be better, which results in more power.
It would be great to see some dyno results of each on an M50.
Try to blow air through every port and leave a piece of paper on every other port for comarrison, that's the most simple DIY flow test. If what you are explaining is correct, you should see results, it would be a nice video to watch.
well, these M52 welded ones are welded inside so You have to weld those pipes outside, then You can grind off welding inside so they will be totally fine comparing M50 ones...
Agree
Yes, we smoothend the welds inside and didn't reinforce it from outside little crack appeared but after little reinforcement welding it is all good. I think the m52 route is better after this small mod. And also you have to plug the lambda sensor holes.
I have euro manifold. I don't remember if the size is different but when I compared them I came to conclusion that m52 is better. One different is that there isn't that connecting port between the cylinders 2 and 3 in the euro model.
very helpful information! thank you for doing the research rather just following the internet hype
what is the width of m50 exhaust port
In M50 engine headers from M52 gain more low rpm power. Flow is faster cus compression gases ale restricted a Little SO they Flow faster
One question that might sounds dumb. But I ordered a manifold and I wanna make sure it’s right. But does it make a huh difference if I put an m50 exhaust manifold on an s52 engine? I realized the engine is bigger on the s52 so I’m not sure if it’s gonna go great when I crank it. Any help?
Interesting!
This doesn't show that either one flows better.
You must not understand air flow. I have a porting degree and a degree in air flow design and I can tell you everything this guy said is true. They flow better and they deal with the heat and have much better efficiency.
@@dissolverussia4842 I'm a Certified Industrial Hygienist with a specialty in ventilation (air flow). Without measuring volume and velocity this is just someone's opinion. Show me the $$$.
@@masscomnet ever heard of Joe mondelo? The godfather of of cylinder head porting. That's is who I was trained by and have a degree from him specifically In cylinder air flow and port design. He is no longer with us but I can tell you that dude is correct about the m50 manifold and the advantages it has over the m52 header. Sorry I don't have any money for you but I have straight up facts. Also I just got back from my local pick and pull and saw both and will be pulling that m50 manifold tomorrow as and will be installing a n52 exhaust I built from all stock parts.
@@masscomnet for example the m52 manifold has the major issue of the air fighting against each other vs the m50 that don't have that issue. Second the m50 exhaust will transfer the heat better then the m52 manifold which affects the way the air flows out of the cylinder head. 3rd the exhaust cast manifold has enough material to remove for a good port shape that will also help with flow. The only disadvantage the m50 manifold has is its ugly compared to the m52.
@@masscomnet The main difference between the M50 intake and the M52 intake is that the M50 intake holes are each 10mm larger than the M52’s. That is about .39 inches for each bore. Because of this difference, the air flow from the air filter to the intake will be better, which results in more power.
Do anyone fitted a m50 exhaust header on a m52? I'm curious to check if the sound difference from m50 325 to the m52 328 is due to the cast headers.
They are p&p
I wonder why they changed the design then?
likely because of emissions as well. The obd 2 had to run a total of 4 o2 sensors (pre and post cat) vs obd 1.
idk how active you are responding. i got some questions regarding n55 swap you did. thanks
do it
@@HakenE30 That's plan either end of this summer or next. But I have questions on making electronics work and cluster