When Buying A Skyline How Do I Know If Its Got Forged Internals?

[Shmee33]

When buying a skyline how do i know if its got forged internals?

if there is no recipts?

thanks alex

[ONE-VIA]

listen to the engine

how it starts up or when its running

or crack open the engine

or ask the guy your buying it from

[arep3]

you dont. alls you can find out is what the person selling the car says. for example, IF i were to sell my car i could show you photos of the motor being built. i can show you the motor bolted in the car and i could show you invoices of the parts as i bought them, but how do you know that i havent sold the motor and replaced it with a stock motor with shiny painted covers?

you could make educated guesses from what the car and motor are like and from what info you are supplied but theres not way of being 100% without opening the motor up...

[TiTAN]

take the spark plugs out and get someone to stick a camera in there, forged pistons generaly have a different top to the standard items.

[arep3]

take the spark plugs out and get someone to stick a camera in there, forged pistons generaly have a different top to the standard items.

this better then opening it

[den001]

the best way would be take it to a reputable workshop, some have fibre optic cameras, take of oil drain hole for turbo and stick the camera up and have a look

Edited April 17, 2009 by den001

[shaunzo101]

can only tell when u take the head off the block, which you can't do when buying. you can only rely on the honesty of the seller.

[GTRsean]

Use a borescope camera down the plug hole to see the top of the piston for serial/part numbers. And use the borescope up the oil drain plug too....

The scopes we use are only 5mm in diameter and flexible, so they are one of the best tools.

That's if you can get a hold of one.

[Cartman]

unless you witnessed the thing get done, or know someone reliable who did.. dont trust them.. just assume its a stock motor.

[**RB2530**]

Find someone who knows what forged pistons sound like when the engine is first started. Get them to listen to it. They are noisy due to larger piston to bore clearance required because forged pistons expand more when hot.

I run CP pistons and they have a relatively small piston to bore clearance and I can still tell easily.