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+--- Forum: Technical Queries / Questions - Classic Mini (https://samini.co.za/forumdisplay.php?fid=15)
+--- Thread: Turbo Build (/showthread.php?tid=633)
RE: Turbo Build - Sean1380 - 02-09-2017
its called quench....
like when you throw water onto a fire to quench it...
I.E. a piston actually cools itself on the head of the engine, as the head will be cooled by the water jacket.
Thus the closer to the head the cooler the piston will run.
Which means less hot spots and less likelyhood of detonation
RE: Turbo Build - Sean1380 - 02-09-2017
Orlando had both a suck through - built first, then and MG Metro Turbo setup in his Clubby
RE: Turbo Build - DomMINIque - 02-09-2017
Oh ok thanks Sean.
Need to go back to the drawing board to see what's the best way to do this....
http://minisport.com.au/images/pistons_1275_close.jpg
These are slots?
The ones to stay away from?
Just some info I'm collecting before I loose it.
http://www.minispares.com/product/Classic/Engine/Block/Piston_liners_Rings/P22357-40.aspx?100110&ReturnUrl=/search/classic/pistons.aspx|Back%20to%20search
http://www.minispares.com/product/Classic/Engine/Block/Piston_liners_Rings/P21251-20.aspx?100110&ReturnUrl=/search/classic/pistons.aspx|Back%20to%20search
I have recently had a client with a 1098 crank with 1275 pistons, needless to say the pistons was about 6.5mm from the top of the bore when measured. - GTSPhil
Keith Calver says don't bother with forged pistons - http://samini.co.za/showthread.php?tid=73&page=2&highlight=South+African+1098
RE: Turbo Build - Sean1380 - 02-10-2017
Yeh, but boost is a different kettle of fish Dom.
Std pistons can crack way to easy under boosted conditions
These are boost proof -----
http://www.med-engineering.co.uk/products/engine-assembly/pistons-forged/omega-forged-pistons-18cc
R8900 before importing them though.....
These Mini Spares versions are a wee bit cheaper, but cast, R4100 per set ex shipping etc
RE: Turbo Build - Sean1380 - 02-10-2017
Alternatively - Wiseco from the states make totally bullet proof pistons.
http://www.wiseco.com/Catalogs/Automotive/CustomOrderAuto.pdf
Thinking a set of 71.5mm or 72mm Wiseco pistons with a lekker 18cc dish.............
(20 thou Mini = 71.14mm, 40 thou = 71.64, 60 thou = 72.14)
RE: Turbo Build - Sean1380 - 02-10-2017
http://rosspistons.com/2012Catalog.pdf
Looks like Ross also do custom pistons
RE: Turbo Build - Sean1380 - 02-10-2017
As do Arias
https://ariaspistons.com/pages/custom-pistons
RE: Turbo Build - Sean1380 - 02-10-2017
These are a good option, get a local machine shop to dish the piston some more.........
http://www.minispares.com/product/Classic/Engine/Block/Piston_liners_Rings/C-AJJ3378-40.aspx?100110&ReturnUrl=/search/classic/mega%20pistons.aspx|Back%20to%20search
RE: Turbo Build - Sean1380 - 02-10-2017
Apparently JE Pistons have made 18cc MG Metro Turbo pistons in the past
RE: Turbo Build - DomMINIque - 02-16-2017
When I machine the block I would need to get 998 pushrods as well because the 1098 ones will be too long, correct?