Cylinder Head project !!!
May 6, 2007, 01:23 AM
#76
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I am just excited ,, (these are not bullets) come on hehehe. This tuesday I'll pick up the cyl head and will post on some more pics showing the differences.
May 6, 2007, 03:34 PM
#77
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Ok forgot to mention that I ordered on friday the ceramic coatings and lubricants heres the procedure
1- Will coat with heat reflective ceramic the combustion chambers, face of valves ,piston tops and exhaust ports. To reduce the amount of heat transfered to the head therefore to the oil and coolant also to keep the heat in the combustion and not in the alloy of the pistons reducing fatigue on them. The reason to coat also the exhaust ports is to improve gas velocity .
2- Will coat with a special lubricant the intake ports, valve springs, camshaft lobes, retainers, valve seats, valve guides and valve seals.... this lubricant reduces heat and increases movement by reducing friction...
will post pics of the procedure heheh
PS this coating must be oven cured (again my kung fu is getting stronger)
1- Will coat with heat reflective ceramic the combustion chambers, face of valves ,piston tops and exhaust ports. To reduce the amount of heat transfered to the head therefore to the oil and coolant also to keep the heat in the combustion and not in the alloy of the pistons reducing fatigue on them. The reason to coat also the exhaust ports is to improve gas velocity .
2- Will coat with a special lubricant the intake ports, valve springs, camshaft lobes, retainers, valve seats, valve guides and valve seals.... this lubricant reduces heat and increases movement by reducing friction...
will post pics of the procedure heheh
PS this coating must be oven cured (again my kung fu is getting stronger)
May 8, 2007, 05:43 PM
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Ok some pics before I go to pick up the cyl head a 1 hr drive
First of all here are the ceramic coatings and special lubricants. Starting from the left is the Film lubricant for the valve springs , seals retainers camshaft and etc., center ceramic coating for pistons , face of valves, exhaust ports and combustion chambers , and last powder lubricant coat for hard to reach areas like guides cylinder walls and etc.
now i have to drive to pick up the cyl head will post some suculent pictures tonight hehehe
First of all here are the ceramic coatings and special lubricants. Starting from the left is the Film lubricant for the valve springs , seals retainers camshaft and etc., center ceramic coating for pistons , face of valves, exhaust ports and combustion chambers , and last powder lubricant coat for hard to reach areas like guides cylinder walls and etc.
now i have to drive to pick up the cyl head will post some suculent pictures tonight hehehe
Last edited by migueralliart; May 8, 2007 at 11:23 PM.
May 8, 2007, 11:14 PM
#84
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OK so I received the cyl head and did some quick comparisons,
this is the before and after for the intake and exhaust ports
some more photos of the ports
this is the before and after for the intake and exhaust ports
some more photos of the ports
May 9, 2007, 12:52 PM
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Notice some stuff:
intake ports they were enlarged up to the size of the gasket.. their intake plenum divider was also knife edge to enhance flow an eliminate backpressure. They removed material up to the valve seat ..
Exhaust Ports they were enlarge from 1-7/16" to 1-5/8" and the guy said he could go bigger but didn't recommend than since the head has less material there.. so that's an increment of 3/16" in DIAMETER.. also the exhaust plenum divider initially was rounded and now is knife edged so both flows of the exhaust valves encounter faster and this gives a more powerful pulse when it enters the header collector , what this means is that you can use a header as big as 1-3/4" (runners) and still retain the torque, Because the pulse of each exhaust stroke will be stronger ... I didn't want to go technical but sometimes you have to in order for people to not believe stuff blindfolded and buy stuff overpriced without having photos or evidence
intake ports they were enlarged up to the size of the gasket.. their intake plenum divider was also knife edge to enhance flow an eliminate backpressure. They removed material up to the valve seat ..
Exhaust Ports they were enlarge from 1-7/16" to 1-5/8" and the guy said he could go bigger but didn't recommend than since the head has less material there.. so that's an increment of 3/16" in DIAMETER.. also the exhaust plenum divider initially was rounded and now is knife edged so both flows of the exhaust valves encounter faster and this gives a more powerful pulse when it enters the header collector , what this means is that you can use a header as big as 1-3/4" (runners) and still retain the torque, Because the pulse of each exhaust stroke will be stronger ... I didn't want to go technical but sometimes you have to in order for people to not believe stuff blindfolded and buy stuff overpriced without having photos or evidence
Last edited by migueralliart; May 27, 2007 at 06:14 PM.
May 14, 2007, 01:51 PM
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A little update for all of you young padawans.
The head was sent to do some racing valve angle job and replace the valve guides and stem seals. A little milling but not serious enough to pull timing and a complete cleaning. ONce its home will take some more photos and proceed to the finishing touch which will be the ceramic coating.....
PS should arrive this next friday!!!!
The head was sent to do some racing valve angle job and replace the valve guides and stem seals. A little milling but not serious enough to pull timing and a complete cleaning. ONce its home will take some more photos and proceed to the finishing touch which will be the ceramic coating.....
PS should arrive this next friday!!!!
Last edited by migueralliart; May 14, 2007 at 01:54 PM.
May 14, 2007, 02:46 PM
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This friday , also heard some good stuff about the cam regrinding. The shop called me and said it might be ready for this week or the next. They modded the High lobe only ......