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Home > Help Needed / General Tech Chat > PISTON ID please

turboshirbo

51 Posts
Member #: 1371
Advanced Member

east yorkshire

8th Aug, 2013 at 08:51:35pm

hi all
on stripping engine taken out of a early mk1 metro turbo about 7 years ago :$
i trying to find out if pistons are suitable for future use, crowns are heavly dished ish
TRW-175-9335-T
J90 0.03
in middle of crown
+.03 71.34
round lip edge of piston
cylinder head was stamped with a T has the larger sodium exhaust valves
not yet stripped fully to check crank
block is not sleeved
eny help ideas on size over bore ,turbo suitability ?
would be much appreciated :) so i can then maybe get build tread started
craving boost*surprised*
regards mark

Brett

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9502 Posts
Member #: 1023
Post Whore

Doncaster, South Yorkshire

8th Aug, 2013 at 08:58:02pm




On 8th Aug, 2013 turboshirbo said:
+.03 71.34


looks to be +30thou over bore 71.34 is about a +30 overbore in mm
the T and sodium valves are a good turbo head indicator aswell

Yes i moved to the darkside *happy*

Instagram @jdm_brett


turboshirbo

51 Posts
Member #: 1371
Advanced Member

east yorkshire

8th Aug, 2013 at 09:15:24pm

hi brett
thanks for that, guess its been over bored then, not to much ?
does the TRW mean eny thing to you ?
make ?
will split block gear box ,remove rods pistons get better idea !
do you know how i can tell if gen turbo crank ?
regards mark

Brett

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9502 Posts
Member #: 1023
Post Whore

Doncaster, South Yorkshire

8th Aug, 2013 at 10:09:56pm

Trw - no idea probably too old for me lol
the crank will have a CAMXXXX part number cast on to it
CAM6232 - normal 1275 crank
CAM6581 - the harder (early) turbo crank
although the 6232s were fitted to the turbo engines aswell, i suppose the hardened ones were deemed unnecessary shortly after going into production

Yes i moved to the darkside *happy*

Instagram @jdm_brett


WRLondon

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1170 Posts
Member #: 8636
Post Whore

Surrey

9th Aug, 2013 at 09:23:41am

I had a +30 engine
its 1301

TRW is the brand, yankee if i remember correctly
they do forged & cast pistons for big v8's mainly

get a picture of inside the piston so we can tell if its been cast or forged
by the marks

Reading up on RTS Clutches

On 21st Sep, 2006 Paul S said:
Go on, be brave, put it in the car and tell us how it works.
Pity your bollocks are in line with the flywheel!
On 27th May, 2013 robert said:
putting my testicles on the line for turbo mini owners everywhere ,and they still work !

WRLondon

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1170 Posts
Member #: 8636
Post Whore

Surrey

9th Aug, 2013 at 09:31:42am

http://www.trw-ec.com/en/

chinese / american company

Reading up on RTS Clutches

On 21st Sep, 2006 Paul S said:
Go on, be brave, put it in the car and tell us how it works.
Pity your bollocks are in line with the flywheel!
On 27th May, 2013 robert said:
putting my testicles on the line for turbo mini owners everywhere ,and they still work !
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