Dynoed 1170hp/1180ft/lbs today.
10-02-2008, 07:09 AM
#22
I donīt run mls gaskets. I have done what we do on all euro engines to make the head seal. We mill down a ring around the cylinder with a cutting edge that cuts into the head. Also known as "pyramid rings" and "fire rings". Then you can boost as much as you want
Some pics:
I think itīs good with stock block/crank/853 heads
Some pics:
I think itīs good with stock block/crank/853 heads
10-02-2008, 07:32 AM
#23
WOW. Can't believe so many guys in the FI section have never hear of o-ringing a block or heads.
Very common on the big high HP high cylinder pressure motors. A common practice is to o-ring the head, and machine a receiver groove in the block, and use a copper head gasket.
BTW, great results out of that 6.0
Is the car a Chevy 2, or European version? Cool lookin ride either way.
Very common on the big high HP high cylinder pressure motors. A common practice is to o-ring the head, and machine a receiver groove in the block, and use a copper head gasket.
BTW, great results out of that 6.0
Is the car a Chevy 2, or European version? Cool lookin ride either way.
10-02-2008, 07:34 AM
#24
The way he explained it, it doesn't sound like its O ringed. he made it sound more like they machine the deck down except for a ring around each cylinder that is raised, the opposite of O ringing. Actually it makes even more sense to do it that way.
Sean
Sean
10-02-2008, 09:04 AM
#25
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Itīs not oringed.
We machine the block and have a ring in very hard steel with a cutting edge that cuts into the head. And then we use a modified stock gasket around these rings.
You can se how we do in the attached picture.
We machine the block and have a ring in very hard steel with a cutting edge that cuts into the head. And then we use a modified stock gasket around these rings.
You can se how we do in the attached picture.
10-02-2008, 09:05 AM
#26
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To me its just different styles of o ringing. I did it the same way he did on my GN about 10-12 years ago. I cut a groove in the block, carefully installed, stainless wire .039 dia(may be copper depending) then ran a copper head gasket for the stainless wire to cut into. It never blew again on my alum headed gn, but it would occasionally push water.
I thnk its a better design to machine the receiver groove, but thats a very hard process. If you make a mistake the wire doesnt seat inside the receiver groove.
and I just bought a 62 chevy II because of that car......
I thnk its a better design to machine the receiver groove, but thats a very hard process. If you make a mistake the wire doesnt seat inside the receiver groove.
and I just bought a 62 chevy II because of that car......
10-02-2008, 11:11 AM
#29
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What kind of wire? copper or stainless?
I ve thought about trying it with no gasket and copper (aluminum heads) with a cut gasket behind the ring. Is that pretty much what you did? Can you give the the groove cut width and depth and wire used?
Im guessing you de have to shoot for a nearly identical compressed thickness between the wire and gasket, with maybe a .001-.004 more on the wire to insure seal to the head?
BTW, good stuff, and nice work.
10-02-2008, 11:46 AM
#30
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i ran an oringed 6.0 block for ages and i swear by it! i just had the block oringed and not the heads and it worked flawless ly ( also used both mls and graphite gaskets with great results). if i remember correctly it only costs about $150 to 200 to do the oring in the block .
now camaroandreas, can you please post more pics of how you setup the deck if possible?? and what is that slot cut in the side of the cylinder across the deck surface?
and is it just me or are you not running a BOV ??
your car makes me want an older body style nova sooooo bad
now camaroandreas, can you please post more pics of how you setup the deck if possible?? and what is that slot cut in the side of the cylinder across the deck surface?
and is it just me or are you not running a BOV ??
your car makes me want an older body style nova sooooo bad
10-02-2008, 12:31 PM
#32
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looks like a Cooper ring set-up. Filled with nitrogen and expand with heat to increase size.
10-02-2008, 01:12 PM
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10-02-2008, 08:30 PM
#36
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I know all about O ringed blocks but just what he did was new to me
10-03-2008, 03:02 AM
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10-03-2008, 07:56 PM
#40
Looking good man... the engine dyno throws alot of people off on here wheo just read the title and not the whole thead......
Looks like with the above she would be between 850-1000rwhp.....
DEpending on Trans....
Quite a few people swear by O-Ringing....... I have a buddy who does it a different way also.
Ill be posting pic's of it when its done.
Kyle
Looks like with the above she would be between 850-1000rwhp.....
DEpending on Trans....
Quite a few people swear by O-Ringing....... I have a buddy who does it a different way also.
Ill be posting pic's of it when its done.
Kyle