Head work...
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E55
Subscribed!!! I look forward to reading about your results. 
Who is doing the head porting if you don't mind?
For what it is worth, don't worry about boost lost from head porting. Although it sounds like a negative on the surface, it is actually a positive! I would also recommend staying with the 180mm pulley.
Good luck with your project!
Who is doing the head porting if you don't mind?
For what it is worth, don't worry about boost lost from head porting. Although it sounds like a negative on the surface, it is actually a positive! I would also recommend staying with the 180mm pulley.
Good luck with your project!
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From: Houston, TX
2006 E55, 2012 Jeep SRT, 2008 G37s 6MT (The Mrs.), 2005 Explorer
Beauphus you make me want to rip my heads off right now and get to work. haha! Anyone know where I can get a set of take-offs? That way my car would only be down the time it takes the swap the heads.
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From: palm beach
CLS55 & CL CK60
as far as heads it took him approx a week and a half to complete the job
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haters crazy
Nice gains You mind me asking who did the work and how much it cost? I must have missed it in the thread. He opened up the intake side alot but looks like the exhaust side is pretty good from the factory. No oversize valves or anything right? Just port and polish
You mind me asking who did the work and how much it cost? I must have missed it in the thread. He opened up the intake side alot but looks like the exhaust side is pretty good from the factory. No oversize valves or anything right? Just port and polish
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From: palm beach
CLS55 & CL CK60
no valve changes. just port n polish. PM'ed u
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E55
Assuming these are the porting results, do you have a graph of the stock ports?
Thanks again for your contribution.
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From: palm beach
CLS55 & CL CK60
Maybe I'm reading the chart wrong. To me, we are looking at the flow rate at two different pressure levels, not before and after results which are typically posted.
Assuming these are the porting results, do you have a graph of the stock ports?
Thanks again for your contribution.
Assuming these are the porting results, do you have a graph of the stock ports?
Thanks again for your contribution.
"Stock heads flow around 250cfm @ .450lift on the intake side and 153cfm @ .400lift on the exhaust side."
This chart was done by the same guy who did my PnP job...
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From: palm beach
CLS55 & CL CK60
Not really sure and it isnt an isolated mod so dynos will be inconclusive about this one mod. Mixed with the cams it should be a nice increase. The guy who did the head says generally speaking it nets a 5% to 10% increase of hp. 50 hp increase over stock seems hard to believe. Other problem is people who have had this done before dont post results for reasons unkown. I however will gladly post results hopefully by next Friday. stay tuned...
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
typically it's been because the gains have not come close to what was advertised. i'm not trying to be a downer but it certainly is unfortunate that we still won't have any real data on head porting after this build.
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From: palm beach
CLS55 & CL CK60
That's what I'm afraid of. Hopefully the head work ontop of the other mods have made it worthwile.
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From: palm beach
CLS55 & CL CK60
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S600, GL450, GLC 43
It really is a shame we will never see the before and after flow charts
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From: palm beach
CLS55 & CL CK60
updated videos for those curious 
http://www.youtube.com/watch?v=jqRqGux8kII
http://www.youtube.com/watch?v=dgEggcrLz9U
http://www.youtube.com/watch?v=jqRqGux8kII
http://www.youtube.com/watch?v=dgEggcrLz9U
