Fallen Victim to Head Lift
Joined: Dec 2005
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From: On a forum dedicated to Boost
Originally Posted by Audible Mayhem
i think more of you need to gut out the thermostat and run 100% distilled water plus some water wetter during the warmer months, with everything i have done, my coolant level NEVER gets over 185F. luckily i am in florida and can run this setup all year long....
I couldn't have said it better myself. Water Wetter works great! Got it in my car and my bike. Coolant is obsolete.
L19 Head Studs trqed to 90ft/lbs, and a new headgasket (either cometic/hks) is all you will need to forever solve that head lift issue. Also check the heads and block for straightness, just to be certain.
http://www.forgedperformance.com/sto...cat=264&page=1
http://www.forgedperformance.com/sto...cat=264&page=1
http://www.forgedperformance.com/sto...cat=264&page=1
http://www.forgedperformance.com/sto...cat=264&page=1
http://www.forgedperformance.com/sto...cat=264&page=1
http://www.forgedperformance.com/sto...cat=264&page=1
Originally Posted by Audible Mayhem
i think more of you need to gut out the thermostat and run 100% distilled water plus some water wetter during the warmer months, with everything i have done, my coolant level NEVER gets over 185F. luckily i am in florida and can run this setup all year long....
Sharif, I'm really curious though, as to whether the L19s are really necessary or not, based on using a good headgasket such as the HKS that is ringed.........
It'd be interesting to have someone check it out that way.
It'd be interesting to have someone check it out that way.
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Well, I spoke with Sharif today And we feel that L19's and HkS, or cosworths will handle the load I am going to put on it.
Lets keep this going and see what we can all come up with to further the solution for other guys down the road.
Ryan
Lets keep this going and see what we can all come up with to further the solution for other guys down the road.
Ryan
Originally Posted by chimmike
Sharif, I'm really curious though, as to whether the L19s are really necessary or not, based on using a good headgasket such as the HKS that is ringed.........
It'd be interesting to have someone check it out that way.
It'd be interesting to have someone check it out that way.
^^^correct^^^
ARP L19 studs are the same size 7/16inch, and they drop right in. The difference, is they are made from a L19 steel, which has a 262,000psi tensile strength, vs. 192,000 for standard ARP steel. More strength, means you can trq them down to greater loads, without yielding (breaking) the stud.
ARP L19 studs are the same size 7/16inch, and they drop right in. The difference, is they are made from a L19 steel, which has a 262,000psi tensile strength, vs. 192,000 for standard ARP steel. More strength, means you can trq them down to greater loads, without yielding (breaking) the stud.
Originally Posted by ryan350z
this is getting to be a great conversation here.
I do have an upgraded Rad from Koyo, w/o double checking i can't remember if it is 32mm or 36mm. On Evos and LS-1s they also experience headlift. I do not think a Evo has an open deck, and on the Ls-1's does anyone know if they have an open deck? I know on the older chevys (350lt-1) they have 5 studs surrounding the piston and a solid deck and on our motors we have 4 studs. And when I was a kid kid we raced mustangs and blew head gaskets all the time with FI due to only having 4 studs that surrounding the piston. Most of the time we went to O-ring heads to solve it. I do feel tuning has a large role in this. I am going to be interested to have this solved. But all in all everyone has a valid point. I am leaning towards the l19's and Hks Gaskets.
Ryan
I do have an upgraded Rad from Koyo, w/o double checking i can't remember if it is 32mm or 36mm. On Evos and LS-1s they also experience headlift. I do not think a Evo has an open deck, and on the Ls-1's does anyone know if they have an open deck? I know on the older chevys (350lt-1) they have 5 studs surrounding the piston and a solid deck and on our motors we have 4 studs. And when I was a kid kid we raced mustangs and blew head gaskets all the time with FI due to only having 4 studs that surrounding the piston. Most of the time we went to O-ring heads to solve it. I do feel tuning has a large role in this. I am going to be interested to have this solved. But all in all everyone has a valid point. I am leaning towards the l19's and Hks Gaskets. Ryan
Originally Posted by booger
So far it has , along with the HKS gasket . The HKS has a stopper ring , where the edge of the gasket is folded over to make it stronger . The L19's you trq. down to 90ft lb's . Thats 30 ft lb's more than stock . The Pathfinder cooling mod will help keep the motor cooler when boosting it .
standard size ARP studs are recommended to be torqued to 80 ft lbs... L19 is 90lbs, ARP 1/2" head studs is 100lbs+ (we don't like to go much further for fear of distorting the aluminum heads)
personally, any motor that is going to be pushed over 500whp, we recommend 1/2" head studs, any other forced induction, we recommend L19, if someone is going N/A or under 400whp, standard ARP head studs wil suffice
-TODD
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do a google on the evos, I just go by what the internet tells me because it is god
I was doing some homework and found some along with some LS1's. I am at the point where I am gonna risk it at 600rwhp with the L19's, Cosworth or Hks head gaskets? I am still debating this. If I had to do this over I buy a Porsche Twin Turbo But really If i could I would do the 1/2 studs but I am at the point where this is getting overly fun to tear this apart!!! NOT And for my goals I feel the L19's should be more than enough. 
I was doing some homework and found some along with some LS1's. I am at the point where I am gonna risk it at 600rwhp with the L19's, Cosworth or Hks head gaskets? I am still debating this. If I had to do this over I buy a Porsche Twin Turbo But really If i could I would do the 1/2 studs but I am at the point where this is getting overly fun to tear this apart!!! NOT And for my goals I feel the L19's should be more than enough.
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From: jeddah
Originally Posted by ryan350z
I understand the cosworths are rebadge cometic's. What makes you feel it is not the studs? I also have the SVR Tech Head strengthing mod as well, guess it did not make it strong enough. lol.
Ryan
Ryan
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From: ATL-What U Know About That???
Originally Posted by ryan350z
On Evos and LS-1s they also experience headlift. I do not think a Evo has an open deck, and on the Ls-1's does anyone know if they have an open deck?
Ryan
Ryan
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