2.5L Motor
#198775
October 13, 2005 03:33 pm UTC
October 13, 2005 03:33 pm UTC
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Joined: Oct 2000
Posts: 150 Wininpeg,Manitoba,Canada
Chris Buzunis
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Wininpeg,Manitoba,Canada
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So I log on to my local board to see someone selling a 2.5L Talon motor. I was curious as to what the story was so I bring up the ad and start reading the details.
It's a 6 bolt G4CS block, your typicl 2.4L motor (86.5mm bore x 100mm stroke), but says it has .040 pistons. So that works out to a 87.5x100 which yields a displacement of 2405.6cc.
Am I missing something here? Since when did 2406cc = 2.5L?
buzz 93 Eagle Talon TSi AWD
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Re: 2.5L Motor
#198777
October 13, 2005 03:47 pm UTC
October 13, 2005 03:47 pm UTC
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Joined: Jun 2002
Posts: 5,009 Kitchener
Noah Wiles
Senior Member, with Far TOO Much Time on Their Hands
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Senior Member, with Far TOO Much Time on Their Hands
Joined: Jun 2002
Posts: 5,009
Kitchener
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Close enough.... 2.5L in my books.
1997 Eagle Talon TSi - JDM 6 bolt = SOLD! 2008 Mistubishi Lancer GTS 2008 Chevy Equinox
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Re: 2.5L Motor
#198778
October 13, 2005 04:20 pm UTC
October 13, 2005 04:20 pm UTC
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Joined: Oct 2000
Posts: 150 Wininpeg,Manitoba,Canada
Chris Buzunis
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Where does 89mm come from?
Block is 86.5mm Pistions are 1mm over as stated
Should yield 87.5mm bore or 2406cc
buzz 93 Eagle Talon TSi AWD
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Re: 2.5L Motor
#198780
October 13, 2005 05:04 pm UTC
October 13, 2005 05:04 pm UTC
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Joined: Oct 2000
Posts: 150 Wininpeg,Manitoba,Canada
Chris Buzunis
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The block is bored to match the pistons, not the headgasket. So as I said above, the motor is 2406cc.
buzz 93 Eagle Talon TSi AWD
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Re: 2.5L Motor
#198782
October 13, 2005 07:36 pm UTC
October 13, 2005 07:36 pm UTC
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Joined: Oct 2000
Posts: 150 Wininpeg,Manitoba,Canada
Chris Buzunis
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Wininpeg,Manitoba,Canada
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I'm not 100% sure what would happen. You have a small gap there that isn't ideally supposed to be there, but it is so small it might be negligable.
buzz 93 Eagle Talon TSi AWD
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Re: 2.5L Motor
#198783
October 13, 2005 08:08 pm UTC
October 13, 2005 08:08 pm UTC
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Anonymous
Unregistered
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Anonymous
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Wow Pistons are .40 oversized? Check the block if its over its machining limit.
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Re: 2.5L Motor
#198788
October 14, 2005 02:20 pm UTC
October 14, 2005 02:20 pm UTC
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Joined: Oct 2000
Posts: 150 Wininpeg,Manitoba,Canada
Chris Buzunis
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Nick, where do you come up with 88mm for the bore?
4g63:
Bore - 85mm Stroke - 88mm Displacement - 1998cc
4g64:
Bore - 86.5mm Stroke - 100mm Displacement - 2351cc
With your comment of 2.4 crank and 2.0 block:
Bore - 85mm Stroke - 100mm Displacement - 2270cc
Of course those are all assuming std size.
buzz 93 Eagle Talon TSi AWD
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