nickel/silicon treated cylinder bores
02-04-2002, 11:00 PM
#1
Three Wheelin'
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nickel/silicon treated cylinder bores
Hi,
I am researching the feasibility of rebuilding a 928 S4 engine using the unconventional method of nickel/silicon treated cylinder bores with pistons, which have no coating on them at all (chrome). Have you or do you know of anyone that has rebuilt a 944,968,951,931,924 engine using this method? If so, have you encountered any adverse problems such as piston wear, low compression, excessive oil consumption or cylinder bore wear?
Can you please share any information on this subject?
Thank you very much,
Steve Cattaneo
I am researching the feasibility of rebuilding a 928 S4 engine using the unconventional method of nickel/silicon treated cylinder bores with pistons, which have no coating on them at all (chrome). Have you or do you know of anyone that has rebuilt a 944,968,951,931,924 engine using this method? If so, have you encountered any adverse problems such as piston wear, low compression, excessive oil consumption or cylinder bore wear?
Can you please share any information on this subject?
Thank you very much,
Steve Cattaneo
02-04-2002, 11:17 PM
#2
I will be sending my 89 944S2 block out soon to <a href="http://www.performanceautoworks.net" target="_blank">www.performanceautoworks.net</a> give them a call they will tell you every thing you want to know..
02-05-2002, 02:20 AM
#4
Race Director
BMW had TREMENDOUS problems with their mid-'80s V8s used in the 8- & 5-series cars. That's because of their NikASil (nickel-aluminum-silicon) plated cylinders which got corroded from the higher sulfur content of U.S. gasoline. BMW's ultimate solution was to replace the blocks with AluSil blocks like in our cars (aluminum-silcon 70/30%). Although some cars received 2 or 3 replacement NiKaSil blocks in the meantime while BMW was investigating the problem.
Here's some links of interest:
<a href="http://vista.pca.org/stl/928.htm" target="_blank">http://vista.pca.org/stl/928.htm</a>
<a href="http://vista.pca.org//shn/tech/techeng.htm" target="_blank">http://vista.pca.org//shn/tech/techeng.htm</a>
<a href="http://www.rennsportsystems.com/~porsche/2f.html" target="_blank">http://www.rennsportsystems.com/~porsche/2f.html</a>
<a href="http://www.koalamotorsport.com/tech/misc/v8shortblock.htm" target="_blank">http://www.koalamotorsport.com/tech/misc/v8shortblock.htm</a>
<a href="http://www.mbmw.com/Problems%20with%20early%20production%20V8.html" target="_blank">http://www.mbmw.com/Problems%20with%20early%20production%20V8.html</a>
Here's some links of interest:
<a href="http://vista.pca.org/stl/928.htm" target="_blank">http://vista.pca.org/stl/928.htm</a>
<a href="http://vista.pca.org//shn/tech/techeng.htm" target="_blank">http://vista.pca.org//shn/tech/techeng.htm</a>
<a href="http://www.rennsportsystems.com/~porsche/2f.html" target="_blank">http://www.rennsportsystems.com/~porsche/2f.html</a>
<a href="http://www.koalamotorsport.com/tech/misc/v8shortblock.htm" target="_blank">http://www.koalamotorsport.com/tech/misc/v8shortblock.htm</a>
<a href="http://www.mbmw.com/Problems%20with%20early%20production%20V8.html" target="_blank">http://www.mbmw.com/Problems%20with%20early%20production%20V8.html</a>
