Some advice needed
Turbo Mini Forums

Hi,
Im in the early stages in collecting bits for my 998 turbo build and my original plan was to rebore the 998 engine in my mini but i came accross a rebore block the last day for sale bored +20, im wondering if its ok to changeover the studs and bolts in my engine to a different block and also is there anything i should look out for on buying a block, its been idle for a while so has light surface rust but doesnt look too bad, also i dont know if its been decked or not.
Any ideas whats it worth?
Any help appreciated.
JP

A job worth doing is a job worth over doing

Yep, everything can be transfered. even at +20 you might struggle to get some decent pistons.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

What would be the best rebore to go for so,
i think i read on the fourm somewhere that +80 and up pistons are better.
Would i be better off sticking with my own block and getting it rebored,

A job worth doing is a job worth over doing

+20 is ok, but you need to check what pistons are available. I know the ones Minispares did are no longer available, and the repleacements are only in +40s.

Minisport australia do a +20, inclucding tax and shiping a set will be £200.

+80 may be possible, but no point for a turbo setup IMO.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Cant seem to find them +20 ones at minisport (http://www.minisport.com.au/category5_1.htm)
And the +40 ones are dished, i plan on using a 12g295 head which i think still has the 28cc chambers so would dished pistons bring the cr too low for 10psi boost.
Another thing is that the block im looking at might be decked, the owner doesnt know, any way to check this and also would this effect my cr much.

What pistons and are you using wil

I could be completely wrong bout the +80 pistons, just though i read it somewhere.

Thanks for the help wil.

A job worth doing is a job worth over doing

bump

A job worth doing is a job worth over doing

You dont need to bump that soon people have lives it will be fine personally as everyone knows once your at 10psi it will be 15psi before you know it!

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis

and then maybe 20 psi ....oh dear!

+0.020" 998 flat topped pistons, other than the original slipper pistons seem to be like gold dust :(

You can only check if a block has been decked by measuring it. It should be 8.625".

Edited by Paul S on 29th Oct, 2011.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

no more bumps so
dont mean to be a pain, its just i wnt to let the fela that has the block know wheither im takin it or not trying to see can these +20 pistons be got, if not i wont bother with the block.
Thanks for the replies

A job worth doing is a job worth over doing

What about these, anyone had any expierance with these.

http://www.calverst.com/shop1/index.php?ma...&products_id=80

A job worth doing is a job worth over doing

Snap his hand off before he realises the rarity.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

ha, so would they be up to the job.

A job worth doing is a job worth over doing

They are the same as the Minispares P20950 pistons.

I've just bought some +0.040" and +0.060" for future stock.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

is it best to move on them stright away so,

A job worth doing is a job worth over doing

Just bought them,
A moment of madness i think. Ha.
I have pistons now with no block,
They'll look nice on the self in my room until i need them.
Thanks for the help lads.

Oh ya, any ideas whats a rebored 998 block worth,

Edited by jdisel on 30th Oct, 2011.

A job worth doing is a job worth over doing