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Join Date: Mar 2002
Posts: 3,563
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993TT P&C's in a 993 NA Motor?
Hi, just a quick question, would 993TT P&C's bolt right into a N/A 993 engine without any case or head mods?
This is for an aftermarket turbo conversion for a mate's 993 C2S  If he can do that, then he'll shop around for second hand 993TT P&C's, or just slip in some lower compression JE Pistons in his existing cylinders. What about 3.8 Turbo P&C's? Are these a bolt-in item, or does one have to machine out the case and heads?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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11-30-2004, 07:58 PM
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Bump!
Never got an answer to this one. Does anyone know? I think both the 993TT and NA 993 have the same bore & stroke, so swapping P&C's should theoretically work?!?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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07-10-2005, 05:39 PM
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Join Date: Jun 2001
Location: Sweden
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There are no 3.8 Turbo engines as far as I know. Only 3.8 engines I know about are rare RS models (without turbo, of course).
I believe 993TT pistons should be bolt-on to N/A 3.6 motor, but they are rare and still not stonger/lighter that custom made JE's, so It might be better upgrade path.
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Thank you for your time, |
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07-10-2005, 10:52 PM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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993TT P/C's do not fit the N/A 993 heads without modifications.
There are major differences in how the TT cylinders join & seal to the heads.
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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07-11-2005, 12:07 AM
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Hmmm, perhaps a set of 8.0:1 Forged JE's slipped into the existing cylinders would be a better option then?
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Merv '89 911 Turbo Cab Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition
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07-11-2005, 05:12 AM
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Join Date: Feb 2002
Location: Northern Virginia
Posts: 719
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That's the direction I am going in. Turbo pistons in 993NA cylinders.
Rick '78 930 |
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07-12-2005, 12:46 PM
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