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Dilemma

GTS4WD

By GTS4WD,
in Engines & Forced Induction

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BAMR33 Mentor

BAMR33

Posted
Posted

r32 rb25de head on the existing rb25 block and transfer all the existing rb20 stuff over to the new head, injectors, manifolds, ignition system etc. except use the rb25 turbo you talking about having.

rb25de head: ~$1000

GT-R valve springs: ~$100

Head Gasket: ~$500

That's assuming the rb25 bottom end is ok

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GTS4WD Grand Master

GTS4WD

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How much did you pay for it? $2000?

You get what you pay for buddy, I hope you disclose all this when you go to on-sell the car to some poor unsuspecting person.

Nope.. because the job will be done properly this time.. :banana:

With proper parts.. and tools.. So there is no need to hide it.. the will be done right this time..

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tridentt150v Grand Master

tridentt150v

Posted
Posted

Weetbix...........absolutely no taste............Cocoa Pops or Froot Loops at least.

Some shops get customers that bring in a wheelbarrow full of bits and peices and say 'Build me a car!'.

The shop says 'No way', so the moron wheels his barrow to the next shop, eventually someone will say OK.

To be fair, it happens with mod parts as well, some shops will sell you anything, other shops try to tell you what will work and what is a waste of $$$$.

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GTS4WD Grand Master

GTS4WD

Posted
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Posted (edited)

This was taken out from cylinder 1

The diameter of the pison is 85.95mm

The diameter of the bore is 86.05mm (standard bore is 86.0 - somone has been playing with toys they shouldnt of been!)

On the face of the piston is has imprinted "STD" and a big "1" in the middle. Mean anything?

the question I have is..

are these forgies?

What brand?

t938074_IMGP0135CROPPED.JPG

Edited by GTS4WD
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zebra Grand Master

zebra

Posted
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Id say, go and get the bores taken out .5mm over standard. Pretty sure every piston manufacturer has that oversize eg. ACL, Aries, HKS, CP, JE etc etc

Prices are average around 1200-1400 bucks for pistons and rings.

Rebore would be around $300ish

Getting Pistons fitted to Rods - Around $200

Hope you find this useful

Andrew

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GTS4WD Grand Master

GTS4WD

Posted
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Id say, go and get the bores taken out .5mm over standard. Pretty sure every piston manufacturer has that oversize eg. ACL, Aries, HKS, CP, JE etc etc

Prices are average around 1200-1400 bucks for pistons and rings.

Rebore would be around $300ish

Getting Pistons fitted to Rods - Around $200

Hope you find this useful

Andrew

Yeah mate.. all bits help.. :)

Can anoyone confrim they are forgies though?

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blind_elk Grand Master

blind_elk

Posted
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This was taken out from cylinder 1

The diameter of the pison is 85.95mm

The diameter of the bore is 86.05mm (standard bore is 86.0 - somone has been playing with toys they shouldnt of been!)

On the face of the piston is has imprinted "STD" and a big "1" in the middle. Mean anything?

the question I have is..

are these forgies?

What brand?

t938074_IMGP0135CROPPED.JPG

It's 0.1mm difference! - you have to have some clearance between the piston and bore. The spec for bore is nominal - there will be some manufacturing variations.
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GTS4WD Grand Master

GTS4WD

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It's 0.1mm difference! - you have to have some clearance between the piston and bore. The spec for bore is nominal - there will be some manufacturing variations.

True.. of MAX .05 (according to the workshop manual)

So the pistons would of been fine if they didnt f*ck around with the bore :) Dodgy deadshits!

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_Sawyer_ Community Regular

_Sawyer_

Posted
Posted
This was taken out from cylinder 1

The diameter of the pison is 85.95mm

The diameter of the bore is 86.05mm (standard bore is 86.0 - somone has been playing with toys they shouldnt of been!)

On the face of the piston is has imprinted "STD" and a big "1" in the middle. Mean anything?

the question I have is..

are these forgies?

What brand?

t938074_IMGP0135CROPPED.JPG

there defiantly forgies. The piston you have are sold by precision performance. they retail for $1500. they are some chinese brand but dont be to worried there no to bad really. these are mine that we put in rb30's for a cheaper optioned rebuild. Just put it all back together and drive it, as lond as there not damaged it will be sweet. cheers

04102006146.jpg

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