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Location: Darwin
Registered: August 2003
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18 R pistons
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Sat, 20 September 2003 04:28
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will the Conrods from an 18R engine fit the 2T Crank.
Bored the 2T out to 89mm and was hoping to fit 18R .5mm oversize pistons to the block the only problem is the Conrods, will the 2T conrods fit these pistons or is it possible to use the 18R's Conrods.
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Location: Perth
Registered: May 2003
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Mon, 22 September 2003 03:47
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Have looked and while there are a number of pistons out there It does not mention the gudgeon pins which I would think would be the easiest.
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Mon, 22 September 2003 07:13
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Have downloaded a Piston Catalogue and there is not much difference between the pistons. The Piston Dia is 88.5 for the 18R the Gudgeon Pin is 22mm and the Comp height is 39.3mm Locking for Pin is different but will it matter?
The 2T is 85mm, 22mm, 39.0mm
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Location: Perth
Registered: May 2003
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Tue, 23 September 2003 10:48
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Thankyou The 2T Pistons are press fitted but I don't foresee that as a problem, So it looks like 18R Pistons will go into my 2T. Now anyone tell me what Cubic Capacity (litres) 89mm Pistons will make in a 2T. Thank's again
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Location: Perth
Registered: May 2003
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Re: 18 R pistons
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Tue, 23 September 2003 12:04
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Ok,
area of a circle = pi x radius^2
volume of a cylinder = area x height
volume of 4cyl is therefore = pi x radius^2 x height x 4 (cyls)
where pi = 3.141592654
radius = bore / 2 (in centimetres)
height = stroke (in centimetres)
for the original 2T
volume (cc) = pi x (8.5/2)^2 x 7.0 x 4
volume (cc) = 1588.86
for the o/s 18R pistons
volume (cc) = pi x (8.9/2)^2 x 7.0 x 4
volume (cc) = 1741.92
Or 1.74 Litres
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Location: Brisbane
Registered: May 2002
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Re: 18 R pistons
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Tue, 23 September 2003 23:36
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Or you could just use 3T internals which will give you 1.77 litres. Sounds heaps easier to me!
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Wed, 24 September 2003 00:34
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Yeah Perhaps except I have 2 2T Blocks and it is heap cheaper to bore and put new pistons in than to get a 3T block or modify the 2T block for a 3T cranks as well as the fact that Longer stroke=slower revving while bigger bore and short stroke means fast revving and Maybe broken conrods.
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Location: Brisbane
Registered: May 2002
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Re: 18 R pistons
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Wed, 24 September 2003 02:31
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You can pick up a complete 3T for a couple of hundred bucks tops at the wreckers. Do you really think it will cost less than that to bore out your 2T with new pistons rings etc?
The 3T is still well oversquare so you won't have any problems revving it. I used to have one in my first TA22 and it would happily bounce off the redline all day.
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Wed, 24 September 2003 12:23
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Maybe a couple of hundred in southern states but there are none in the Northern territory Darwin, I have tried every wrecker in Darwin but no hope so my only choice would be to import one and that is expensive. There are only 2 TA22 Celica's in the wreckers, all others are RA series. There are not many T series cars up here at all.
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Location: Brisbane
Registered: May 2002
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Re: 18 R pistons
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Thu, 25 September 2003 00:32
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3T's come out of T18's, not Celicas.
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Location: Darwin
Registered: August 2003
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Re: 18 R pistons
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Thu, 25 September 2003 04:54
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Thanks didn't know that, will look for a T18 in Darwin
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