Fire ring / O ring
 

Really tired of researching.. Maybe you guys can help..... I am maybe going twins whc1 14cm Non Wasted with a Bhtb3 26cm or a Good single...DD maybe pull 5 times a year. I would like 2 be around 5-600HP Just enough to pass up most enemies........ lol
Already have Trans Goodies installed >> Triple Disc Valve Body Billet Input All servos and crap...LOL We pulled it Saturday way under weight and hell it didn't even smoke WTF lol
1st time so it was kinda more trial and error pull for us.
I have to check my fuel pressure again I think I'm low....The injectors are supposed to be 370s But who knows. I'm pulling the head and re ringing it soon...Yes there worn. 156000 idling miles..Construction truck ya know....

Fire rings don't hold up well to the many heat cycles you'll see in a truck driven on the street.

I did read that some wheres but is the difference between the 2. I have read and read am I just stupid or what..

O-ring crushes stock firering on the HG into the head to seal

Firering replaces the stock firering on the HG.

ive read dont use multi layer head gasget is the marine gasket copper ? and does it need any modification, its expensive thats for sure. pulled my head today .and looking for the best set up for trouble free 12k towing w/stock boost 40.i would prefer to stick w/ bolts i dont have a cherry picker.

You don't need a cherry picker to do studs, in fact, you have to thread the studs in with the head on. You wouldn't be able to get the head on in the truck if the studs go on first. Bolts should be just fine though for 40 psi. I would recommend getting new ones, as the old ones stretch.

Thank You monster12valve.. Happen to find this today trying to find out where to get the orings..LOL

Fire Ring Versus O-Ring

We frequently get asked the question, what is the difference between O-Ringing or Fire-Ringing my cylinder head.

Here is our best explanation:
O-Ringing:
O-Ringing is cutting or machining a narrow circular groove in your cylinder head surface, then tapping or pressing in a stainless steel wire. The stainless wire protrudes 8-12 thousandths from the surface of the head. When installed on the block, this wire lines up with the steel ring in the head gasket. After torquing your cylinder head down, this wire puts additional pressure on the steel ring, allowing for a better head-to-block combustion seal. These setups work very well for mild builds up to 750HP, with 70PSI or less boost.

Fire Ringing:
Fire ringing is cutting or machining a circular groove in your cylinder head OR block surface, or sometimes both surfaces. The groove is generally machined in the head in most street uses.
Once the groove is cut, a circular mild steel ring is set on the block in the grooves that were cut. In the case of having the head cut, we generally glue the rings to the head to ensure proper positioning with the cylinder when you install the cylinder head. With fire ringing, the stock steel fire ring in the Cummins gasket is removed and instead replaced with the mild steel "fire rings". This allows for a stronger seal than o-ringing. When the head is torqued, the steel rings will crush, allowing a strong seal.
This application will hold upwards of 100PSI of boost when using the correct fasteners. When you machine both the head and block, about half the recommended machining depth is used on the head and block, this way, the rings are set in both the head and the block with even less chance of them shifting when re-installing the head.

On most of our high performance competition builds, we only fire ring the block, then we use either 14mm head studs or H-11 or 625 heavy duty 12mm head studs.


Info Found at site below.
Fire Ring versus O Ring Cylinder Head Dodge Cummins Diesel

thanks daveo i should have thought of that.

so what if your running a 700hp beast with twins everyday oring or fire ring ? lol

My question is can you just get O rings? And where? Is the copper marine gasket the way to go?

ill 2nd that question and add i cant find slainless o rings just the steel fire rings w/ modified marine gasket. my head is at the machine shop they need the specs from manufacturer .

You can't just buy o-rings. Your head has to be machined for it. When I got mine, the machine shop did all the machine work and pressed the wire into the head for the o-rings. Also, there's no problem going with a stock Cummins head gasket.

please were do i get the wire .? machinist needs wire i will b using to set up dept. width

Pure Diesel Power took care of all the machine work for me, including the wire. 715-254-9181 is the number for their "Tech Line." They may be able to point you in the right direction.

they couldnt or woulnt give me answer on were to perchase wire. they did take down my # 3 hrs ago. went to order cummins gasket kit from bbd automated sys. had me leave ph# no call back yet 3hrs.any body want some biz? cummins gasket kit $150,thermostat $32,better than oem head bolts under $100 shipped,4k gsk for good price. i guess sum buisnesses to busy to do buisness.hava nice day.

this copper gasket plz tell me more... thnx

I wish I could give you some more help. Maybe try posting something up in the sponsors section? They might be able to get you what you need.

thanks anyhow,its funny thier is so much writen about the o-ring but no product!its probbaly welding wire or sumthin ill just go get some from home depot w/ a router bit n do it myself:tu: goin 2 the sponsers sec.

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to first gen puller
im gana make 1 on my way 2 home depot & harbor fr. thats were i got my boost elbo :rocking: no info on one i read sumthin one place and sumthin in another and thought may b it was the marine gasket.

0-ring
 

For all you who are curious this is what a o-ringed machined head looks like. I run mine up to 60psi with Twins and hitting 600hp at the rear. Max EGT's I can hit is 1300 on WOT.

I always wondered what that looked like. Now I know Lol!

Yep pretty cool process. Head surface is machined as well which required a .010 over head gasket.

machinist took off .008 off mine close enough 4 .010 over gasket as well .iff i could have got more info on typ/grade/size of stainless wire my head would b groved for 0-rings. if i blow another h/g ill think harder about sending my head 1500mi to get it done.

Yeah once your head is off you might as well o-ring it. Cost me about $600 for the head work which included the rocker mount machine work which they had to take .200" off for the ARP studs. I'd say it'll take 70 psi off boost on the head no problem. However mine is low 60's. Upgraded IC boots is a must.

, k.a.m fire rings,mags for cracks,serfaces for $330 . got the tour of the shop incredible computer controled equipment .but they had never heard of o-ring w/ stainless wire not a problem he will do machine work but needs the wire .o-well got my head back just resurfaced .to install this weekend w/4k gsk and afc mods. 60psi t/d n fire arms 2boot u rock.latter