Still pushing water.
06-28-2007, 12:28 AM
#41
8 SEC SLOPPY SHOT!!!
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Originally Posted by NA$TY-TA
That sucks man....... 
Well either BBC time or LSX... id say wait and see what some do with the LSX stuff with the 6 bolt heads and you have almost all the parts except the heads and some bolts.........
Kyle
Well either BBC time or LSX... id say wait and see what some do with the LSX stuff with the 6 bolt heads and you have almost all the parts except the heads and some bolts.........
Kyle
06-28-2007, 10:32 AM
#43
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Originally Posted by tuff
Well after steping a little on the tuneup im staring to push water again.As some know im on a copper o ring reciver groove setup.I would like to know how much power can you make before i shoud be pushing water?Seems like my power level is no were close enough to were im pushing water.Right now i push about a quart per pass and i get a little messy under the hood because it fills my reserve all the way up.My heads are torque to 100ft pounds but i belive i may have hurt a gasket due to not torquing them down tight enough on the fresh gaskets (85ft pounds) thinking about putting new gaskets in and trying it again.What do you guys think. BTW i did do the heat cycle and retorque after full cool down but were only torque at 85ft pounds.At that point we were leaking water pretty bad in the cylinders and we pulled the haeds cleaned it all up and did the 100ft pound torque.Can copper gaskets just get messed up on a inproper torque install.
06-28-2007, 10:41 AM
#44
Originally Posted by tuff
Yea that is what ive been thinking.If not im going to lean towards a SBC im thinking like a SP2 setup with efi on the gun!!!
I would disagree with the ls not being able to hold it. I just think your head gasket type is no good with what your doing. I have hit mine pretty hard and the most water we saw was less than 1/2 a quart on the over flow. a little water is going to happen. My compression is less than yours though. I guess your heads are machines for those gaskets and you can't use a regular cometic any more right?
Also It would help to not fill the coolant all the way up leave it 1/2 qt low that way theres some room in the system and when it pushes its just steam at first.
06-28-2007, 10:45 PM
#45
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Originally Posted by ShiznityZ28
I would disagree with the ls not being able to hold it. I just think your head gasket type is no good with what your doing. I have hit mine pretty hard and the most water we saw was less than 1/2 a quart on the over flow. a little water is going to happen. My compression is less than yours though. I guess your heads are machines for those gaskets and you can't use a regular cometic any more right?
Also It would help to not fill the coolant all the way up leave it 1/2 qt low that way theres some room in the system and when it pushes its just steam at first.
Also It would help to not fill the coolant all the way up leave it 1/2 qt low that way theres some room in the system and when it pushes its just steam at first.
06-29-2007, 07:17 AM
#46
Originally Posted by tuff
Yea i leave the coolant a little low for expanion.What shot are you hitting it with and what compression.
good luck man. I hope your heads or block are not stuck with the setup you have now. it does not seem to be right.
06-29-2007, 07:33 AM
#47
Originally Posted by tuff
Yea i leave the coolant a little low for expanion.What shot are you hitting it with and what compression.
Think it was 350 shot at the PGD's and 375 shot when it went 8.9
Its broken up in 2 stages.
are you using a progressor?
06-29-2007, 08:59 AM
#48
Originally Posted by ATVracr
Think it was 350 shot at the PGD's and 375 shot when it went 8.9
Its broken up in 2 stages.
are you using a progressor?
Its broken up in 2 stages.
are you using a progressor?
Bingo. but we did hit it with the 400 on the dyno at jeffs. we just backed it down some for the friday night runs. as soon as my stuffs back were gona hit it with the 450 and see what she's got. I had eric send 4 extra pistons incase
06-29-2007, 09:09 AM
#49
Originally Posted by ShiznityZ28
Bingo. but we did hit it with the 400 on the dyno at jeffs. we just backed it down some for the friday night runs. as soon as my stuffs back were gona hit it with the 450 and see what she's got. I had eric send 4 extra pistons incase
You have a very efficent N20 kit too.
225 shot makes 230 or so to the wheels
450 DAMN ! Maybe it will bump the front wheels
06-29-2007, 05:02 PM
#51
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Originally Posted by ShiznityZ28
I read about some cool new copper gaskets with orings around the coolant holes and gas filled rings to help seal compression. Might want to look into something like that.
06-30-2007, 01:21 AM
#54
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Originally Posted by ShiznityZ28
I read about some cool new copper gaskets with orings around the coolant holes and gas filled rings to help seal compression. Might want to look into something like that.
SCE Titans? I ran them on my 347 after popping the cometics at E-town....... The next time I lifted a head, the gaskets held, but the piston/head did not. VERY strong gaskets....... but if you have issues, you will have damage...LOL
I went back to cometics for my new motor, as I would rather lose a gasket, than damage the motor
06-30-2007, 09:30 AM
#55
You guys are chasing the wrong gremlin... I assume that you think the heads are lifting, pressurizing the cooling system with combustion gasses, causing a coolant dump, is that correct? I seriously doubt this is happening with the gaskets and torque you are using. The head gaskets are not leaking.
The problem is an extreme and rapid transfer of heat to the cooling system causing a rapid expansion of the coolant and a pressure spike... This, coupled with a high pressure cap means that when the cap does release, it does so with an explosive eruption (liquid to steam) of coolant.
Try improving your cooling system using a lower pressure cap (12 psi) and a large diameter (1 inch) overflow line to a large catch can. Also make sure there is no flow restriction through the thermostat or other components. Verify that your coolant bleeds at the front and rear of the heads are clear and large to eliminate any posibility of trapped air in the heads. Verify that your radiator is large and well cooled with electric fans... Also, install a coolant system pressure guage and log the data for analysis.
Do this and your problem will be solved...
Shirl Dickey
SDRE
The problem is an extreme and rapid transfer of heat to the cooling system causing a rapid expansion of the coolant and a pressure spike... This, coupled with a high pressure cap means that when the cap does release, it does so with an explosive eruption (liquid to steam) of coolant.
Try improving your cooling system using a lower pressure cap (12 psi) and a large diameter (1 inch) overflow line to a large catch can. Also make sure there is no flow restriction through the thermostat or other components. Verify that your coolant bleeds at the front and rear of the heads are clear and large to eliminate any posibility of trapped air in the heads. Verify that your radiator is large and well cooled with electric fans... Also, install a coolant system pressure guage and log the data for analysis.
Do this and your problem will be solved...
Shirl Dickey
SDRE
06-30-2007, 10:26 AM
#56
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I have had similar problems on buicks and SBF with copper gasket. 1/2 head studs and lifting at this power level. Its not rapid heating from his description. We need pictures of the gaskets and plugs to go further with this.
Originally Posted by MrEracer
You guys are chasing the wrong gremlin... I assume that you think the heads are lifting, pressurizing the cooling system with combustion gasses, causing a coolant dump, is that correct? I seriously doubt this is happening with the gaskets and torque you are using. The head gaskets are not leaking.
The problem is an extreme and rapid transfer of heat to the cooling system causing a rapid expansion of the coolant and a pressure spike... This, coupled with a high pressure cap means that when the cap does release, it does so with an explosive eruption (liquid to steam) of coolant.
Try improving your cooling system using a lower pressure cap (12 psi) and a large diameter (1 inch) overflow line to a large catch can. Also make sure there is no flow restriction through the thermostat or other components. Verify that your coolant bleeds at the front and rear of the heads are clear and large to eliminate any posibility of trapped air in the heads. Verify that your radiator is large and well cooled with electric fans... Also, install a coolant system pressure guage and log the data for analysis.
Do this and your problem will be solved...
Shirl Dickey
SDRE
The problem is an extreme and rapid transfer of heat to the cooling system causing a rapid expansion of the coolant and a pressure spike... This, coupled with a high pressure cap means that when the cap does release, it does so with an explosive eruption (liquid to steam) of coolant.
Try improving your cooling system using a lower pressure cap (12 psi) and a large diameter (1 inch) overflow line to a large catch can. Also make sure there is no flow restriction through the thermostat or other components. Verify that your coolant bleeds at the front and rear of the heads are clear and large to eliminate any posibility of trapped air in the heads. Verify that your radiator is large and well cooled with electric fans... Also, install a coolant system pressure guage and log the data for analysis.
Do this and your problem will be solved...
Shirl Dickey
SDRE
07-09-2007, 01:05 PM
#58
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I'm just a newb at this ultra high HP stuff, but if the heads were lifting, wouldn't there be some kind of fuel residue in the coolant? Of course not enough to see or smell, but its not something a lab couldnt detect.
07-09-2007, 04:56 PM
#59
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Originally Posted by 1BadAction
I'm just a newb at this ultra high HP stuff, but if the heads were lifting, wouldn't there be some kind of fuel residue in the coolant? Of course not enough to see or smell, but its not something a lab couldnt detect.
