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Location:
qld
Registered:
May 2003
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selecting pistons for a 3tg hybrid
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Thu, 11 March 2004 09:43
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im considering doing a 3tg build with a bore job to 1950cc just wanted get a price on some pistons with around 10.5:1 compresion to 11:1 compression and just wondering if i should ask my local engine shop to look for 3t pistons.
do the 3t pistons also fit on the 3t gte rods.
jason
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: selecting pistons for a 3tg hybrid
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Thu, 11 March 2004 10:00
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i have aset of 88.5 mm big bore pistons with pins and they are forged, to fit a 3t crank same pin height as 3t as std wont 700 and these are new
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Location:
qld
Registered:
May 2003
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Re: selecting pistons for a 3tg hybrid
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Thu, 11 March 2004 11:37
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what compression ratio are they, brand etc more info
jason
how much did you buy them for and why are you selling, will they fit a 3t gte rods
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Location:
nth ringwood, Victoria
Registered:
August 2002
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Re: selecting pistons for a 3tg hybrid
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Thu, 11 March 2004 18:34
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there made by special pistons services in melb there 11.to 1 comp and they are new, a new set will cost 1100 dollars new ,will fit a 2t rod so i think they would fit a 3tgte rod
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Location:
Melbourne
Registered:
August 2003
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Re: selecting pistons for a 3tg hybrid
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Fri, 12 March 2004 03:50
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Jason, all T rods are the same dimenstions, do a search.
2T crank and 2T pistons must be used together.
3T crank and 3T pistons must be used together.
This is because the additional throw of the 3T crank is accommodated by a shorter gudgeon pin-to-crown height in the 3T piston.
I guess you could use 3T pistons on 2T crank but you'd have very low static compression.
2T pistons on 3T crank will extend beyond deck height, this is why re-flycut 3T-C pistons are commonly used instead of just factory 2T-G pistons (which are too tall).
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Location:
Tasmania
Registered:
May 2002
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Location:
Seattle area, USA
Registered:
June 2002
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Re: selecting pistons for a 3tg hybrid
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Fri, 12 March 2004 09:41
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Wiseco sells 10.5:1 3T-C pistons off the shelf.
They will clear the 2T-G valves just fine.
and with the 2T-G head they come out closer to 10.8:1
1941cc with 89mm bore.
Venolia has the specs for both 2T-G and 3T-C also. but they are more $ then the wiseco's. better quality imho also. 
hth
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Location:
Darwin
Registered:
August 2003
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Re: selecting pistons for a 3tg hybrid
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Sat, 13 March 2004 00:18
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18 R Pistons fit 2T Conrods and they take your bore out to 88.5mm However depending on type Compression may be awkward to calculate.
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