its a 360 the compression ratio is hard to tell without knowing what pistons you have in it. even with stock style .060 pistons you should be around 9.3:1 Here is the formula to determine a given engines compression ratio. It is quite extensive but it's the only way to know exactly unless your best guess is close enough. 1. Determine the displacement of your engine. Displacement formula is:
BORE X BORE X STROKE X .0031416 = DISPLACEMENT
Example: 92 x 92 x 82 x .0031416 = 2180cc
2. Determine the swept volume of one cylinder:
Example: 2180cc divided by 4 = 545cc
3. Determine the deck volume of each cylinder. The deck volume is the distance from the top center of the piston to the top of the cylinder when the piston is at top dead center. Measurement is made in thousandths.
Example: on cylinder #1 you measure and find you have .020" deck height.
BORE X BORE X DECK HEIGHT X .01996 = CC"s
Example: 92 x 92 x .020" x .01996 = 3.378cc's
Measure each cylinder.
4. Measure the volume in each cylinder head. To do this, use a piece of plexiglass cut to fit in the cylinder head to cylinder mating area. Drill a 1/4" hole in the center of the plexiglass. Lightly grease the edge of the plexiglass and install in the head. (Spark plug and valves have to be installed) with a syringe graduated in cc's fill the cylinder head chamber up with a light weight oil. Record the measurements. Repeat for other three chambers. Average cc volume of a new head chamber is between 47 and 51 cc's.
5. You now have all the measurements to determine your compression ratio.
one cylinder swept volume + deck cc + head cc
deck cc + head cc
Example: 545 + 3.378 + 48 = 596.378
3.378 + 48 = 51.378 = 11.6:1
In this example, 11.6:1 is the actual unadjusted compression ratio for one cylinder. Add cylinder shim thickness which will increase the deck cc volume and refigure compression ratio. This must be done for all cylinders. Average deck height shim for use on a 2180cc engine will be between .150" and .185". We use a .177" shim for AVGAS and a .216" or .256" shim for unleaded premium auto fuel. Lower is better for increased engine life and fewer valve related problems.
A smooth, flat surface seals better, and the head gaskets last longer. Also, a smaller combustion chamber would increase the compression ratio.
Head gaskets do not go bad on these. You need to replace the plastic upper intake manifold as it is leaking coolant into the combustion chamber. Common problem for this engine.
That means you have WATER leaking into the combustion chamber. BAD head gasket, Intake gasket leaking into the cylinder heads ( NOT COMMON ) Head cracked in are around the valves / from overheating. More then likely you will find your problem in in the head gaskets are heads.
These engines do not blow head gaskets. You need to replace the black plastic intake or plenum. They will leak coolant into the combustion chamber. Some roge mechanics will tell you it's head gaskets to get you to pay more money. Remove upper intake, remove spark plugs to get coolant out and replace and fill with coolant.
fualty gaskett, or installed incorrctly most likely you have coolant in your combustion chamber, check your oil for coolant.
White smoke (steam) usually is the result of coolant getting into the combustion chamber probably through a bad head gasket or a cracked head.
head gaskets??? warped heads? did you have them milled?
No the turbo runs off of exhaust, then forces the compressed air through the engine.
Nothing cheap. White smoke is a sign of steam. Most likely the engine is mixing antifreeze into the combustion chamber from a bad intake gasket, head gasket, or warped head. Its gonna need a teardown to replace the head gaskets. Think of spending over $700 in labor and about $200 in parts. You should've flushed the coolant before it turned acidic and ate away the gaskets.
The head gasket creates a seal between the engine block/cylinder and the cylinder head. Since the pressures and temperatures are so great, the head gasket must be more substantial than other gaskets. It will also go bad much easier, especially if the engine overheats and the head warps, even a slight amount.It is placed in between the gas compression chamber .A head gasket is a gasket that sits between the engine block and cylinder head(s) in an internal combustion engine.
water in the engine oil or a large amount of water in the exhaust also a compression test
there can be a leak from the intake manifold without any antifreeze mixing with your oil, i personally experienced this problem on a 1986 sentra after a changed the head gasket, i apparently had scaped a little to hard on the intake when cleaning it for new gaskets. if its a small leak it would probably just be evaporating in the combustion chamber, but it can and probably will become a problem that needs attention quickly. have a trusted mechanic take a look at it as soon as possible, maybe have them do a compression check to see if there are any possible leaks. well good luck