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MS Pistons with offset bowl - orientation of bowl offset?

Posted: Wed Dec 23, 2020 1:58 pm
by MiNiKiN
Need your help!
I bought a set of MINISPARES EVOLUTION LIGHTWEIGHT PISTONS with an offset bowl - now, after I have handed them to my engine re-builder to mate them with the con-rods, I noticed I should have told him which way round to orientate the offset. <
Trouble is - I don't know and cannot find any info on that matter.
TIA

Re: MS Pistons with offset bowl - orientation of bowl offset?

Posted: Wed Dec 23, 2020 2:31 pm
by imack
Bowl towards the spark plugs I'd imagine, like the omegas.

Re: MS Pistons with offset bowl - orientation of bowl offset?

Posted: Wed Dec 23, 2020 2:41 pm
by MiNiKiN
In hindsight that makes a lot of sense, yes

Re: MS Pistons with offset bowl - orientation of bowl offset?

Posted: Wed Dec 23, 2020 8:15 pm
by Fanfaniracing
Okay
First time i see them...

Why are they offset? :?:

Re: MS Pistons with offset bowl - orientation of bowl offset?

Posted: Wed Dec 23, 2020 9:01 pm
by imack
Fanfaniracing wrote: Wed Dec 23, 2020 8:15 pm Okay
First time i see them...

Why are they offset? :?:
I think they're offset to improve alignment between the combustion chamber and the piston dish. Whether it makes any difference, who knows.
Pretty sure the omegas I bought in the 90's had a central dish.

Re: MS Pistons with offset bowl - orientation of bowl offset?

Posted: Sat Dec 26, 2020 11:28 pm
by agricola
The swifttune MS pistons are the same.