5SFTE Pistons.

[Ravie_g]

okay im building a turbo 5sfte from block up, uncluding rods and pistons.
now when i look it up, the bore of the stock 5sfe block is 87mm. in some places and 87.1mm in others...which is correct?

does anyone know of any DROP IN forged pistons? all pistons i find are .5mm too big or small. now if i order custom pistons do i order 87mm? or 87.1mm ?

[camry man68]

It took me a long time to find these but these were the only ones i found
http://www.raceeng.com/p-7933-toyota...n875mm851.aspx

[Ravie_g]

thank you, but thats still .5mm too big and changes ratio to 8:5:1 as to 9:5:1

[camry man68]

I think if you look around on that site you might find some pistons made by other companies

[RichieRichJP]

Originally Posted by Ravie_g

thank you, but thats still .5mm too big and changes ratio to 8:5:1 as to 9:5:1

and? Unless you are not running very high boost, go with another brand at stock size

[Camryamnesty]

i guess those arent on sale anymore, but those pistons are 8.5:1 if you use the 3sgte head

The only listing they have for the 5sfe now is...

CP TOY 5SFE:87.5mm-8.5:1/3SGTE HD (EA)-Kit Price

[JunseiMotors]

5sfe blocks are 87.1mm! if u plan on building this engine from the ground up, why not go larger on the bored, from 87.1mm to 87.5mm like sum1 else mentioned? having the block bored to that size is not an expensive treatment and you will benefit slightly more since now you have a bigger area of air/fuel mixture.

[JDM'ized]

Originally Posted by JunseiMotors

5sfe blocks are 87.1mm! if u plan on building this engine from the ground up, why not go larger on the bored, from 87.1mm to 87.5mm like sum1 else mentioned? having the block bored to that size is not an expensive treatment and you will benefit slightly more since now you have a bigger area of air/fuel mixture.

I was just thinking the same thing. Since he's gonna rebuild it from the ground up, he might as well get it bored out .4
It will benefit slighly and maybe, you could have a bit more selection, as far as pistons go....
Just my .02
Alex

[Ravie_g]

Update : Lol yes i am building ground up, got some help from dad and some older machining guys, so yea, boring to 87.5, new forged rods, studs the whole 9 yards. this engine is gonna be monster when im done, im probably gonna get rid of my camry in about a year. but dropping this 5sfte build into a celica. gonna be sweeet!!!

[JDM'ized]

What hp goal you have in mind ?
Are you gonna upgrade the suspension/ chassis as well ?
Keep us posted.....better yet, post up some pics...
Alex