Is your LSx overheating?? HERES WHY..[PICS]
03-09-2008, 03:01 AM
#42
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I agree with you 100%.
If your building an all out race motor, then I could see polishing the valley. But were not talking about 25K dollar motors here. If I had you build me a 25+ thousand dollar motor, i'd expect nothing less.
But were talking about 600-1300hp motors. I'm willing to bet, 1 out of 100 take those precautions. Gawd I'd hate to see the bill if I asked my engine builder to polish the valley of my motor..
But honestly, when an average buy drops 2 grand on the BLOCK she he really have to clean up GMPP's mess??
I COMPLETELY disagree about the cooling issue.. WILL/Could it get cought up in the coolant passages around the cylinders? Probably not. But multiple 1"x1" pieces of powdercoat is NOT gonna make it through the radiator every time. All it takes 1 blocked passage in the head, 1 blocked coolant row in the radiator, or one of those pieces to get caught up in the rear passages of the head, and your chasing your tail..
If your building an all out race motor, then I could see polishing the valley. But were not talking about 25K dollar motors here. If I had you build me a 25+ thousand dollar motor, i'd expect nothing less.
But were talking about 600-1300hp motors. I'm willing to bet, 1 out of 100 take those precautions. Gawd I'd hate to see the bill if I asked my engine builder to polish the valley of my motor..
But honestly, when an average buy drops 2 grand on the BLOCK she he really have to clean up GMPP's mess??
I COMPLETELY disagree about the cooling issue.. WILL/Could it get cought up in the coolant passages around the cylinders? Probably not. But multiple 1"x1" pieces of powdercoat is NOT gonna make it through the radiator every time. All it takes 1 blocked passage in the head, 1 blocked coolant row in the radiator, or one of those pieces to get caught up in the rear passages of the head, and your chasing your tail..
We grind/polish the valley area to remove the powdercoat in the engines we have built and smooth oil return to the pan. The LSX is a foundation for many different type of builds right up to 2000+hp power adder builds, but the engine builder needs to prepare the block for its intended purpose/use. GM has provided a serious foundation for the custom builders to work with and with the help of sites like tech we can stay informed of preperation that will help all. Maybe a sticky with "Things to check" at different power levels would be cool?
Kurt
PS: I don't think the powder coat in the water jacket will do any damage, but removing it can't hurt either!
Kurt
PS: I don't think the powder coat in the water jacket will do any damage, but removing it can't hurt either!
03-09-2008, 07:11 AM
#43
A wire wheel and about 15 min would probably clean all the coating off the valley. The water jackets, I suspect only the first bit of them have any coating in them, a small wire wheel would probably fit in there as well.
You're not talking about 20 hours of work, this is about an hour fo cleanup/prep, guy that built my motor ( not an lsx, ls2, but it's irrevelant at this point) went thru every single opening/crevase/nook/cranny wi9th a wire brush I watched him do it, to make sure there was no loose debris on any of the surfaces, it was explained that one little tiny nub of casting is all it takes to eat a bearing, so that being said he takes the time. I would expect all good builders to be on the same page with stuff like that.
You're not talking about 20 hours of work, this is about an hour fo cleanup/prep, guy that built my motor ( not an lsx, ls2, but it's irrevelant at this point) went thru every single opening/crevase/nook/cranny wi9th a wire brush I watched him do it, to make sure there was no loose debris on any of the surfaces, it was explained that one little tiny nub of casting is all it takes to eat a bearing, so that being said he takes the time. I would expect all good builders to be on the same page with stuff like that.
03-09-2008, 07:18 AM
#44
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I might be more afraid of a wire coming off the brush and ending up somewhere in the motor than a little bit of casting flash. It takes a small cup brush to do water passages and it would be very easy for wire to end up in the coolant passages.
03-09-2008, 09:25 AM
#46
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Bottom line is that the blocks should have been masked off during the powdercoat process.
Keep in mind, too, that friction can temporarily magnetize anything with iron in it and make some of this stuff almost impossible to move.
Keep in mind, too, that friction can temporarily magnetize anything with iron in it and make some of this stuff almost impossible to move.
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