BORE?
Thread Starter
0.5 BAR
Joined: Sep 2003
Posts: 97
BORE?
My GSR motor is bored out I bought it bored out .25 Now I need to lower the CR so im getting new pistons and sleeves but what do I do about knowing what size pistons and i dont know how to calculate the sleeves and everything together to make them fit Someone please help me out
Rob
Rob
0.0 BAR
Joined: Nov 2003
Posts: 12
Re:BORE?
That's .25mm over. You don't need sleeves at .25mm.
Ideally, you want to get your pistons, THEN bore the block to match the pistons. But since it sounds like you bought an already bored block...
I'd have someone who knows what they are doing measure your bores (with a dial bore gauge) before proceeding any further.
Take my advice, do your own homework and don't take anyone's word. That block could have just been honed with a $10 ball hone so it looks fresh. It could be anything.
Ideally, you want to get your pistons, THEN bore the block to match the pistons. But since it sounds like you bought an already bored block...
I'd have someone who knows what they are doing measure your bores (with a dial bore gauge) before proceeding any further.
Take my advice, do your own homework and don't take anyone's word. That block could have just been honed with a $10 ball hone so it looks fresh. It could be anything.
3.0 BAR
Joined: Dec 2002
Posts: 3,396
Re:BORE?
Originally Posted by -TJ
That's .25mm over. You don't need sleeves at .25mm.
Ideally, you want to get your pistons, THEN bore the block to match the pistons. But since it sounds like you bought an already bored block...
I'd have someone who knows what they are doing measure your bores (with a dial bore gauge) before proceeding any further.
Take my advice, do your own homework and don't take anyone's word. That block could have just been honed with a $10 ball hone so it looks fresh. It could be anything.
Ideally, you want to get your pistons, THEN bore the block to match the pistons. But since it sounds like you bought an already bored block...
I'd have someone who knows what they are doing measure your bores (with a dial bore gauge) before proceeding any further.
Take my advice, do your own homework and don't take anyone's word. That block could have just been honed with a $10 ball hone so it looks fresh. It could be anything.
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