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Discussion Starter #1
my eng is jun 2.7 stroker now i want change it to 2.6 with new crank shaft ,,

i want to know some Informations Because in my country no one understands in rb eng ,,,

my cylender block is nismo gt i want go with 87.5 over bore cuz now is 87 ,,

any one Use wisco pistons for high power 700+ ?

Is there a difference size 2.7 Connecting Rods to use it with oem cranck shaft?

what Bearing Set size use with new cranck shaft ?

i want use Gasket with 1.5mm(88mm Bore) is it good for high boost 20-30 psi?



Waiting for your answers and experience,,,
 

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Why would you want to change back to 2.6l?
most likely are the rods shorter due to the longer stroke.

Bearing size depends on if the crank has been machined or not.

As long as your head and engine are straight and the tuning is good you could use basically any steel gasket.
 

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Presume Jun crank is damaged hence the re-bore and need for new pistons,on an RRR block 87.5mm will be fine.

Wiseco pistons will do the job,use ACL bearings on the new OEM crank,standard size.

You would need new conrods, Head gasket would ok,you could always "O" ring the block for added safety.
 

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Discussion Starter #4
brains....thx for reply ,,, i want change it to 2.6 cuz 2.7 crank is damaged also 2 pistons ..


asiasi,,,,, thx for reply ,,,what do you mean about "O" ring pls? is it over bore or ?
 

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O-ring is where a groove is machined into the block then filled with copper wire to aid better seal with headgasket.

 

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my eng is jun 2.7 stroker now i want change it to 2.6 with new crank shaft ,,

i want to know some Informations Because in my country no one understands in rb eng ,,,

my cylender block is nismo gt i want go with 87.5 over bore cuz now is 87 ,,

any one Use wisco pistons for high power 700+ ?

Is there a difference size 2.7 Connecting Rods to use it with oem cranck shaft?

what Bearing Set size use with new cranck shaft ?

i want use Gasket with 1.5mm(88mm Bore) is it good for high boost 20-30 psi?



Waiting for your answers and experience,,,
- I pushed Wisco pistons to 750 and I believe they can handle much more.
- If you are not going certain clearances just use ACL standard bearings.
- Any steel head gasket will do the job just get a decent tuner.

beltawfiq
 
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