E55 Ported Heads
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Joined: Jan 2010
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E552004
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Joined: Aug 2010
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From: Northern Va
Dirt Scooters
N/A heads have the same springs. What engines have you seen push the valves open in a gas application? I know/have had it happen on a diesel but never on a gas engine. We have 90lbs on the seat closed I think if my memory is correct.
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Joined: Dec 2011
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From: new ringgold pa
99 ford lightning
rocket when i had my lightning those 5.4 motors have same springs as na motors and on a magnumpowers supercharger with 18-19psi created a dip in the dyno run up top. so i did 120lb behive valve springs on the intake side only to correct it.
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From: Orlando
1967 Pro Touring turbo LSX Camaro
Itd be a great idea to check the seat and open pressures of your springs while the heads are apart. There's a good chance your springs are fine, but if theyre not, this is the time to find out!
The heads look great BTW!
The heads look great BTW!
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Joined: Dec 2011
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From: new ringgold pa
99 ford lightning
just as a guide when charles at magnumpowers tested the 2v ford head on the lightning I think they started to open up a hair on 10psi. so for higher boost guys it might be a good idea to check your springs.`
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Joined: Feb 2013
Posts: 659
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From: SE MI
2005 Mercedes E55 AMG
m113 - 113 053 0120
I've also seen issues with valve spring seating in LS, 4G63/4, BP based, and L67 engines at high boost
Last edited by rockthemullet; Jan 30, 2014 at 11:58 AM.
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Thread Starter
Junior Member
Joined: Dec 2013
Posts: 27
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From: Lynnwood, WA
03 E55
Copying this from my main build thread, but:
Update:
Found a cracked valve when we were putting the heads back together. Ordered new exhaust valves from Ferrea and heads are being shipped back to me right now.
Update:
Found a cracked valve when we were putting the heads back together. Ordered new exhaust valves from Ferrea and heads are being shipped back to me right now.
Senior Member
Joined: Feb 2011
Posts: 320
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From: Northern VA
2015 CLS63 S AMG
I know this is an old thread but is there an updated thread somewhere else?
A little information I have headers, afe dry flows, Eurocharged tune and a few other mods. From everything else I figure that puts me around 400+ hp and I plan on having a full exhaust built in the future.
I'm just wondering how much power in your opinion would the extra flowing heads make for an NA M113?
A little information I have headers, afe dry flows, Eurocharged tune and a few other mods. From everything else I figure that puts me around 400+ hp and I plan on having a full exhaust built in the future.
I'm just wondering how much power in your opinion would the extra flowing heads make for an NA M113?
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Joined: Sep 2014
Posts: 190
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Subies
Member
Joined: Sep 2014
Posts: 190
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Subies
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Joined: Sep 2014
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From: Worldwide
2007 Mercedes E63 AMG
is this a hand ported or cnc ported job?
cnc ported then hand finished?
mind posting shop info?
cnc ported then hand finished?
mind posting shop info?
Newbie
Joined: Sep 2015
Posts: 4
Likes: 0
From: Renton, WA
Pedal cart
The porting of these heads was done by an individual who specialized in heads at SAM, but he graduated. He still does hand porting as side work, so if anyone is interested in getting in contact with him, let me know. As for the owner of this car, he sold it quite a while ago, and from what I can remember he never made it on a dyno. I'll try and check back in here at some point soon, so feel free to message me if you want the contact info of the guy who did the heads.
Newbie
Joined: Sep 2015
Posts: 4
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From: Renton, WA
Pedal cart
Sent you a PM Cookie.
Hulk, until I pick mine up this spring I don't have a car to test on. So unless some people want to get their heads ported and report back with numbers, we are kind of at a stand still there.
Hulk, until I pick mine up this spring I don't have a car to test on. So unless some people want to get their heads ported and report back with numbers, we are kind of at a stand still there.
