Whart pistons are these?
Turbo Mini Forums

Hi does anyone know or recognise what pistons these are without me taking them out? I am told they are +20.

They are in an unrun turbo engine I bought

Any help much appreciated.

Mark

P.S I know the pictures are not the best

mmm. I know the pictures were not good. But now they are non existent. Sorry. Will try again

ARRRGGGHHH

Does anyone know how to get pictures on here?

Please!

with lots of swearing...try uploading them to a hosting site like photobox or putfile etc, then linking them here?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

I think I will have to leave that for another day

email them to me and i'll pop them up,

josephclark77@hotmail.com

Will do that tonight from my house.
Thank you

Is the area in the very centre of the piston slightly concave?

looks like it to me,

har to tel just from the crowns, but the material seems to look good, can you pop one out of the bore?

offset bowl? Omegas?

I think they are machined standard pistons, that concave area in the centre gives it away a bit. I had a set done (that alex has now) and they looked very similar to these.

The photos certainly make them look offset, but, the photos aren't brilliant (sorry) !!!

Schrödinger's cat - so which one am I ???

The bottom of the dished bit is very flat. Only radiused around the edge. The guy I bought the engine from seemed to think they were forged from minispeed? But he never bought them! The bowl part is definetly offset. I havent taken them out as the bottom half of the engine is still sitting on its box. The head gasket was a cometic one supplied fromthe same people. and the piston in the photo is actually at TDC. Quite far down I thought?

Edited by lockfast on 19th Jun, 2008.

hmm, thats very low down for TDC,

I know minispeed did some JE forged pistons that were a very short compression height, this could be some of those.

have a read of this, the dish shape is quite JEish

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=8589


if these are je's with the short comp height and are an 18cc dish i could be interested if you decide to part with them.

Edited by Joe C on 19th Jun, 2008.

Great pictures :)

Hhhhmmm. I think it might be the JE ones. One it seems to ring a bell with the guy I bought the engine from and two I was told the engine has custom rods! And I have the original rods in a box of bits that came with the engine.
I bought the engine with a view to s/charging it but I cant see that happening. So mini13 feel free to make me an offer to tempt my decision. and I will probably pull the block off its box at the weekend.

Just answered my own question

Edited by minimole23 on 19th Jun, 2008.

hmmm,

I'm second guessing the JE's now, I think the short height ones only came in 73.5mm,

http://www.minispeed.co.uk/classic/index.c...duct&id=je-18cc

Pistons have 464993 stamped on the bottom and appear to be completly machined i.e. no casting marks.