Head Porting Results
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Head Porting Results
We just finished up a set of V6 heads and since the ports and combustion chambers are virtually identical, I figured I'd share the results:
Here are the flow numbers:
Stock:
.100" I:88.7 E:65.7
.200" I:167.5 E:118.6
.300" I:218.2 E:159.4
.400" I:217.8 E:177.6
.500" I:224.8 E:184.3
Modified:
.100" I:101.1 E:71.6
.200" I:195.3 E:117.8
.300" I:256.9 E:164.0
.400" I:296.0 E:192.3
.500" I:318.9 E:199.1
Gains:
.100" I:12.4 E:5.9
.200" I:27.8 E:-.8
.300" I:38.7 E:4.6
.400" I:78.2 E:14.7
.500" I:94.1 E:14.8
Here are the flow numbers:
Stock:
.100" I:88.7 E:65.7
.200" I:167.5 E:118.6
.300" I:218.2 E:159.4
.400" I:217.8 E:177.6
.500" I:224.8 E:184.3
Modified:
.100" I:101.1 E:71.6
.200" I:195.3 E:117.8
.300" I:256.9 E:164.0
.400" I:296.0 E:192.3
.500" I:318.9 E:199.1
Gains:
.100" I:12.4 E:5.9
.200" I:27.8 E:-.8
.300" I:38.7 E:4.6
.400" I:78.2 E:14.7
.500" I:94.1 E:14.8
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From: Texas
2003 CL55
My heads are being worked on right now but our local famous porters are backed up 5 months! 
8 months behind on this project already..
Heads should net us the largest gains yet, since not much room for real cams..
Thanks for posting the results! Nice work and good gains!
8 months behind on this project already..Heads should net us the largest gains yet, since not much room for real cams..
Thanks for posting the results! Nice work and good gains!
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
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From: Texas
2003 CL55
Being that our engines are boost enhanced, hitting the magic velocity number is going to take the right key to open the door. I alot of engines formats that just start being ported for the first time, can show poor results. At least until the right porter figures out the combination of flow verses shear velocity efficiency..
Some porters will post high flow numbers (flow makes sales) but net poor hp gains. Others may have less flow but more velocity and show huge gains. The porters we have in Houston, have my confidence to get good gains..
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From: Tempe, Az
CLS55 AMG 030
Well I will have a extra set of head sitting around , to bad this engine swap is costing a lot of $. I would try and find a place in PHX that could do this. Has anyone seen actual dyno gains with this mod?
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Same thing I have noticed from the 2-3 people that have ported heads..
Being that our engines are boost enhanced, hitting the magic velocity number is going to take the right key to open the door. I alot of engines formats that just start being ported for the first time, can show poor results. At least until the right porter figures out the combination of flow verses shear velocity efficiency..
Some porters will post high flow numbers (flow makes sales) but net poor hp gains. Others may have less flow but more velocity and show huge gains. The porters we have in Houston, have my confidence to get good gains..
Being that our engines are boost enhanced, hitting the magic velocity number is going to take the right key to open the door. I alot of engines formats that just start being ported for the first time, can show poor results. At least until the right porter figures out the combination of flow verses shear velocity efficiency..
Some porters will post high flow numbers (flow makes sales) but net poor hp gains. Others may have less flow but more velocity and show huge gains. The porters we have in Houston, have my confidence to get good gains..
MBWorld Fanatic!
Joined: Jun 2006
Posts: 6,649
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
Same thing I have noticed from the 2-3 people that have ported heads..
Being that our engines are boost enhanced, hitting the magic velocity number is going to take the right key to open the door. I alot of engines formats that just start being ported for the first time, can show poor results. At least until the right porter figures out the combination of flow verses shear velocity efficiency..
Some porters will post high flow numbers (flow makes sales) but net poor hp gains. Others may have less flow but more velocity and show huge gains. The porters we have in Houston, have my confidence to get good gains..
Being that our engines are boost enhanced, hitting the magic velocity number is going to take the right key to open the door. I alot of engines formats that just start being ported for the first time, can show poor results. At least until the right porter figures out the combination of flow verses shear velocity efficiency..
Some porters will post high flow numbers (flow makes sales) but net poor hp gains. Others may have less flow but more velocity and show huge gains. The porters we have in Houston, have my confidence to get good gains..
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+1! If I recall correctly jakpro had his ported and I dont remember any significant gains. Also, member Bleek had his ported and said he did see good gains 
Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?
Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?
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From: Sin City
2005 E55 AMG - - 2005 SL55 AMG - - - - - - 2006 SLK55 AMG - - - - - - 2013 Ducati Diavel AMG -
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+1! If I recall correctly jakpro had his ported and I dont remember any significant gains. Also, member Bleek had his ported and said he did see good gains Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?
Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?Our goal for these heads was to maintain max velocity, while still improving flow. I'll post the pics of the stock and ported ones soon, and you can see that there is a ton of material left to be taken out, but just didn't seem necessary given our past experience with these.
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From: Texas
2003 CL55
+1! If I recall correctly jakpro had his ported and I dont remember any significant gains. Also, member Bleek had his ported and said he did see good gains Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?
Last time I checked it was going for about $5k for this work and I wouldn't dump that kind of money on something I wasn't sure of gains. Are the AMG heads the same as non AMG heads with some port/polish work?
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haters crazy
Where are you getting is info from?
Yea I think so too.
Cant wait for pics/results!
Really? I guess I got the MB rapage price! Let me know how your project goes, this has always been on my list of things to do but I just cant justify dropping the mone on it right now. I will live vicariously through others for now lol
The M112 and M112K heads are identicalm not sure on the M113/M113k, but I really can't see where a change could be made that couldn't be duplicated with porting.
Our goal for these heads was to maintain max velocity, while still improving flow. I'll post the pics of the stock and ported ones soon, and you can see that there is a ton of material left to be taken out, but just didn't seem necessary given our past experience with these.
Our goal for these heads was to maintain max velocity, while still improving flow. I'll post the pics of the stock and ported ones soon, and you can see that there is a ton of material left to be taken out, but just didn't seem necessary given our past experience with these.
Cant wait for pics/results!
You can get heads ported by reputable shops/porters for under 2K. If you start changing valves out,, then it can get pretty crazy. The larger valve debate has been endless on this forum. I plan to stick with stock valves so far but may change if potential power/$ ratio is there.
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From: Sin City
2005 E55 AMG - - 2005 SL55 AMG - - - - - - 2006 SLK55 AMG - - - - - - 2013 Ducati Diavel AMG -
I had ported 500 series non-AMG heads and ported 55K AMG heads and I saw the differences between them through pictures. The main difference between the two is that the AMG head is stronger because of extra material in their castings and they can dissipate heat better through the difference in water passages. The runners are also slightly different and if both heads are ported there will still be a slight difference. Bleek confirmed this as well. I'm not sure if there are differences with the sparkplug and valve angles between the two, but this should be looked into. I also don't know how your 55 non-AMG heads differ from the 500 series non-AMG heads and the 55k AMG heads.
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I had ported 500 series non-AMG heads and ported 55K AMG heads and I saw the differences between them through pictures. The main difference between the two is that the AMG head is stronger because of extra material in their castings and they can dissipate heat better through the difference in water passages. The runners are also slightly different and if both heads are ported there will still be a slight difference. Bleek confirmed this as well. I'm not sure if there are differences with the sparkplug and valve angles between the two, but this should be looked into. I also don't know how your 55 non-AMG heads differ from the 500 series non-AMG heads and the 55k AMG heads.
FYI- they never made a non AMG 55, that includes my CLK55
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From: Sin City
2005 E55 AMG - - 2005 SL55 AMG - - - - - - 2006 SLK55 AMG - - - - - - 2013 Ducati Diavel AMG -
I think it would be in your best interest to port your own heads and not to buy non-AMG heads and port them, if that's what you were thinking.
Dude, you have so many mods that I truely believe you'll see gains from porting your heads. But I understand that you would like to see proof in porting before you make that decision. The problem is that your set up is unique and unless someone with your exact set up ports their heads and test them you may never really know.
Just do it!!!
Last edited by Havoc; Sep 9, 2009 at 04:28 PM.
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Oh right, you have the earlier casting 55 AMG heads. I ment non-K heads. I'm not sure if there is a difference between the two.
I think it would be in your best interest to port your own heads and not to buy non-AMG heads and port them, if that's what you were thinking.
Dude, you have so many mods that I truely believe you'll see gains from porting your heads. But I understand that you would like to see proof in porting before you make that decision. The problem is that your set up is unique and unless someone with your exact set up ports their heads and test them you may never really know.
Just do it!!!
I think it would be in your best interest to port your own heads and not to buy non-AMG heads and port them, if that's what you were thinking.
Dude, you have so many mods that I truely believe you'll see gains from porting your heads. But I understand that you would like to see proof in porting before you make that decision. The problem is that your set up is unique and unless someone with your exact set up ports their heads and test them you may never really know.
Just do it!!!
I would like to do this but I am currently in the process of purchasing a new property and dont have the spending money to do it. Nor do I know who to trust with a project like this. There are a couple things I have on the list before I get to the head porting. It may be a while lol. Thanks for your help/input
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Our V6 heads run 1500.00 for P&P, valve job, and shaving a few thousandths off the bottom for a slight boost in compression (N/A). We reuse your springs and valves but replace the seals.
We can do the V8s for 2000.00 including the above services.
We looked into larger valves and titanium retainers and its a bit pricey unless a large amount are ordered. For 99% of the cars a stock valved ported head will be more then enough.
We can do the V8s for 2000.00 including the above services.
We looked into larger valves and titanium retainers and its a bit pricey unless a large amount are ordered. For 99% of the cars a stock valved ported head will be more then enough.
Out Of Control!!
Joined: Feb 2003
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haters crazy
Our V6 heads run 1500.00 for P&P, valve job, and shaving a few thousandths off the bottom for a slight boost in compression (N/A). We reuse your springs and valves but replace the seals.
We can do the V8s for 2000.00 including the above services.
We looked into larger valves and titanium retainers and its a bit pricey unless a large amount are ordered. For 99% of the cars a stock valved ported head will be more then enough.
We can do the V8s for 2000.00 including the above services.
We looked into larger valves and titanium retainers and its a bit pricey unless a large amount are ordered. For 99% of the cars a stock valved ported head will be more then enough.
I wouldn't want my compression raised though since mine is already at 10.5:1
Last edited by blackbenzz; Sep 9, 2009 at 11:01 PM.
