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Location:
Hobart
Registered:
July 2004
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3TGTE Bore
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Mon, 25 July 2005 07:31
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Hi, my motor is finally apart and by the looks of things i will need to do a bit of work to make it perfect, one thing i am going to want to do it take the bore of the cylinders out a little bit as there are small ridges etc on the bores of 2 cylinders, i am also going to need to regrind the crank shaft only on the big end journals. Can anyone recommend what to bore it out to to get a little bit of a performance gain but without going too far so it cant be bored again? its still stock size of 86mm.
Also where would i find oversized forged pistons for a good price would i need to send a sample piston away to the company and just say copy that piston but 1-2mm bigger, if u know what i mean, and is the design of the 3TGTE factory piston good to use again if getting custom ones again or should they not have that dome on the top to lower the compression so i can run more boost? Does anyone make oversize crankshaft bearings? or do most engine shops just size them up and get custom ones made?
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Location:
Devonport Tasmania
Registered:
June 2004
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Re: 3TGTE Bore
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Mon, 25 July 2005 08:12
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speak to sean maloney at IDB Automotive.
forged pistons will set u back 800-1000 bucks.
what computer are you going to be using ?
If you are using the std computer then dont bore it out too much, as it will affect your fueling requirements.
Also if you are looking at lower compression, then u will definately need an aftermarket computer, otherwise you will just run out of fuel map with more boost.
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Banned by his request
Location:
moved to tamworth
Registered:
July 2002
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Re: 3TGTE Bore
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Mon, 25 July 2005 10:04
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first thing,send the block to the machinest and find what size pistons it will need to suit the boring. it might be virgin block but it depends on how oval etc they are,to what piston size you need.if you want jus6t cast pistons, national will have a piston to suit.
mick
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Location:
Hobart
Registered:
July 2004
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Re: 3TGTE Bore
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Tue, 26 July 2005 07:24
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I was planning to use the standard computer for a while until i can afford an aftermarket one and get rid of the dizzy at the same time. ill have take it to the engine shop fist then ill sort it out thanks for the help, ill have to ring up IDB ive heard they are good.
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