Is it a crap shoot if cylinders get scored?
08-27-2011 | 02:02 AM
#17
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From: long gone.....
08-27-2011 | 02:04 AM
#18
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No they do not all score, but they all do wear out over time..
Proper maintenance will extend the usable life, but EVERYTHING wears out!
The origional blocks, while revolutionary (sort of) for their time, were also so prone to wear that Porsche quit using the Alusil bores, in preference for Nicasil plated bores in an Alusil block / cylinder...
Prevention requires proper maintenance over time...
Proper maintenance will extend the usable life, but EVERYTHING wears out!
The origional blocks, while revolutionary (sort of) for their time, were also so prone to wear that Porsche quit using the Alusil bores, in preference for Nicasil plated bores in an Alusil block / cylinder...
Prevention requires proper maintenance over time...
I hate you john!
08-27-2011 | 08:31 AM
#19
Three Wheelin'
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From: Tennesee
I guess I did not make my point so thgat every one understood. I am not wondering what to do about a block that currently has scored bores. I am wondering if scoring is inevitable on these motors. If I do a complete rebuild or buy a good stock bore engine is it inevitable that the bores will get scored? I see so many posts with scored cylinders. What can prevent this from happening?
Good luck with Irene!
08-27-2011 | 10:50 PM
#20
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Drifting
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From: Massachusetts
Well I guess I should have mentioned in my original post what if I track the car too because that is what I did with the original motor and hope to get back again. Oh yeah and what if I pump it up to 315... 325 rwhp?
Last edited by Alpine951; 08-27-2011 at 11:12 PM. Reason: forgot
08-30-2011 | 02:14 AM
#21
Three Wheelin'
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From: St Louis, Missouri, USA
What can prevent this from happening?
08-30-2011 | 11:16 AM
#22
Nordschleife Master
Joined: Dec 2007
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From: Fly Away
I know, and I am ok with it!
RWHP... sleeve or Nicom coating... dont argue, just do it..
That is roughly double the origional HP output level... you CAN get there on a stock botom end... and it will stay there for a short period of time... sleeves or Nicom can prolong the amount of time it is up and running!
AND someone asked for a budget rebuild DIY...
1) remove motor
2) tear down to bare block
3) Send to U.S. Chrome for Nicom coating
4) Buy Nicom compliant pistons (larger selection than alusil compliant pistons)
5) Buy seals, gaskets, sealants, etc..
6) reverse the abov till you have a running car again!
OR
1) Remove motor
2) Ship to Chris White
That is roughly double the origional HP output level... you CAN get there on a stock botom end... and it will stay there for a short period of time... sleeves or Nicom can prolong the amount of time it is up and running!
AND someone asked for a budget rebuild DIY...
1) remove motor
2) tear down to bare block
3) Send to U.S. Chrome for Nicom coating
4) Buy Nicom compliant pistons (larger selection than alusil compliant pistons)
5) Buy seals, gaskets, sealants, etc..
6) reverse the abov till you have a running car again!
OR
1) Remove motor
2) Ship to Chris White
08-30-2011 | 02:51 PM
#25
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Posts: 7,759
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From: Fly Away
coating ~$1K (+$1K for new pistons)
sleeving ~$1kish depending (+$1Kish for pistons)
ship to chris ~$ sky is the limit, mainly due to "while in there"
350 RWHP... priceless
