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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,116
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What barrels do I have?
I have an '87 3.2L with turbo, flat-top pistons.
1) Are these turbo barrels too? 2) Do I have a 3.3L with these? 3) Are they Alusil or Nikasil? ![]()
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, depending on mood ![]() |
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Registered
Join Date: Jan 2004
Location: CT
Posts: 11,538
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"I have an '87 3.2L with turbo, flat-top pistons. "
Normally an '87 3.2 would have the DME piston dome not flat top turbo style. The markings on the cylinder would indicate Mahle Nikasil. Check to see if the inner bore wall is magnetic. If so they are Nikasil.
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Tom Butler 1973 RSR Clone 1970 911E 914-6 GT Recreation in Process |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,116
|
Quote:
I have turbo flat-top pistons because it is turbo'd. Just curious if they are turbo barrels too (if such a thing) and do I have a 3.3L with these pistons?
__________________
Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, depending on mood ![]() |
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Registered
Join Date: Jan 2004
Location: CT
Posts: 11,538
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Those appear to be the standard 95mm 3.2 cylinders. Measure the bores to confirm they have not been bored and replated. The 3.3 turbo cylinders are half finned.
Also look at the piston number beneath the dome. The 3.3 pistons will read 97P12. The 3.0 turbo piston will read 95P31.
__________________
Tom Butler 1973 RSR Clone 1970 911E 914-6 GT Recreation in Process |
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Chain fence eating turbo
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,116
|
Quote:
I remember I couldnt find really any signgnificant numbers under the dome to ask you guys. They have a green color underneath though, not sure what that is.
__________________
Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR P & C's, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, depending on mood ![]() |
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