Easy to tell if you have forged pistons?

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Steve-O 2007
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Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

Is it easy to tell if you have Forged pistons by looking at the top of the piston??

Dont want to let my block go cheap and find out it had forged pistons in it LOL

(Car had engine work done before it came to the UK eg Metal Headgasket and the seller said it originally came with a HKS Turbo kit that he removed due to massive lag) Just makes me wonder if it had anything else done to it while it was in japan...
bobhatton
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Re: Easy to tell if you have forged pistons?

Post by bobhatton »

Put some photos up of the pistons
Designer for turbo set ups on F1 cars, and Nitrous Oxide Systems of the USA in the 80s
craig
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Re: Easy to tell if you have forged pistons?

Post by craig »

bobhatton wrote:Put some photos up of the pistons


What he said^ :thumleft:
Peter Gidden
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Re: Easy to tell if you have forged pistons?

Post by Peter Gidden »

Won't be easy to photograph in they're inside the engine... :?

Can you get hold of a borescope? If not, PM me.
craig
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Re: Easy to tell if you have forged pistons?

Post by craig »

Peter Gidden - SBITS wrote:Won't be easy to photograph in they're inside the engine... :?

Can you get hold of a borescope? If not, PM me.


I assumed since he had stripped his car, he had the head off.

Otherwise, yes, boroscope.
Steve-O 2007
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Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

Head is off :thumleft:

Will get pics
Steve-O 2007
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Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

click images to make bigger

Image

Image

Image

Image
rev3turbo
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Re: Easy to tell if you have forged pistons?

Post by rev3turbo »

they look standard to me
ashley
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Re: Easy to tell if you have forged pistons?

Post by ashley »

Steve-O 2007 wrote:

Image



Standard- you can see the Toyota code (2D) on the crown in this picture :thumleft:
craig
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Re: Easy to tell if you have forged pistons?

Post by craig »

+1 for stock. 2D casting mark.
Steve-O 2007
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Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

Thanks, at least I now know Im not accidentally going to be selling a forged engine too cheap :lol: :thumleft:
Steve-O 2007
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Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

does engine condition still look good from them pics or can you not really tell that from pictures? Car ran fine with no smoke or anything :thumleft:
mr2magic
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Re: Easy to tell if you have forged pistons?

Post by mr2magic »

Cylinder walls look good. You can still see the crosshatch from the last hone. Piston crown looks clean to...almost too clean (water injection maybe?) oh and yeah the pistons are stock.
Steve-O 2007
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Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

mr2magic wrote:Cylinder walls look good. You can still see the crosshatch from the last hone. Piston crown looks clean to...almost too clean (water injection maybe?) oh and yeah the pistons are stock.


Good to know thanks :thumleft:

Whats the Piston crown? The top of the piston or them clean bits on the piston??

No water injection, just Always ran on Vpower since its been over here from Japan and regular oil services with Gulf Racing and that other high quality oil Opie Oils did, Fuches I think its called (If oil services can make a difference)
:thumleft:
mr2magic
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Re: Easy to tell if you have forged pistons?

Post by mr2magic »

piston crown = top of piston

Normally you will find way more combustion residue on the piston crown due to the tubby running pig rich every time you thump the throttle.

Is the motor relatively new?
Steve-O 2007
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Joined: Sun Nov 12, 2006 1:54 pm

Re: Easy to tell if you have forged pistons?

Post by Steve-O 2007 »

mr2magic wrote:piston crown = top of piston

Normally you will find way more combustion residue on the piston crown due to the tubby running pig rich every time you thump the throttle.

Is the motor relatively new?


No dont think, All I know is at some point in its life it had a Metal HG fitted

I owned the car for 3 - 4 years and just ran on Vpower all the time, regular oil changes, regular air filter changes (HKS Green filters), spark plug changes and made sure Dizzy and rotor was always in excellent condition.

Also ran a ST205 Chargecooler if that could make a difference due to the cooler intake temps?

:thumleft:
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