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January 18th, 2009, 06:53 AM   #1
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big bore?

ha! ha!

you all viewed in thinking i was talking about the way this site is going. nope! while i'm here i'll try and save it from the loonies!

nope, i'm on about a piston that would knock out the 450/470/550/628/644 by another 40cc approximately?

102mm bore. just a special headgasket and off you go! you can use the original linar.

what do you reckon troops?

regards

Taffy
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January 18th, 2009, 10:12 AM   #2
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RE: big bore?

duz it make it faster innit ?

haha sorry couldnt resist taff ...

so its a straight swap of pistons and a different HG ? Sorry to sound thick but im guessing my 650 is actually 644cc !?

and the mother of all questions ... how much ?
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January 19th, 2009, 12:14 AM   #3
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RE: big bore?

the linars would be cheaper than OEM at £150. the pistons around £150 - 20% ore than aftermarket and 33% less than OEM. headgaskets the same price as OEM.

regards

Taffy
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January 19th, 2009, 01:27 AM   #4
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whats this through jbs racing taff?
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January 19th, 2009, 02:11 AM   #5
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we share certain manufacturers but as i'm aware, he does the 105s which need major work.

why am i secretive? try the words "balance factor" and "90%"

regards

Taffy
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January 19th, 2009, 03:23 AM   #6
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hold the phuck on Taff!

you said just a change of piston, then you're telling us how much the new linar ill be??

Thought this was another quiz, anyhow, cant work out how an engine with a set stroke from an unchanged crank and con rod and set bore (same head / combustion chamber) can change the total dispalcement, if its a piston only, then you must either be talking about a blown combustion chamber or a domed / cupped piston or something ungainly like that?

fess up.

Azza.
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January 19th, 2009, 03:53 AM   #7
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sheesh!

sorry you didn't understand!

it's easy; your original linar bored out to 102mm but if it is wrecked then a new lina will be needed - thus the pricing up!

i think you're looking at it from a different direction? 1 in 3 of my rebuilds if not 1 in 2 has a trashed linar so the owner has a choice of a new standard piston and a recoated linar or a rebore and coating with a 102mm piston. the cost is then only the cost of boring out the linar. = cheap as chips.

i don't advocate a new linar or indeed a bored out perfectly-good-linar to anyone. just the trshed ones. if someone came to me with a perfectly good linar i would give them a p/x prie against a new 102mm linar and stock theirs on the shelf as a perfectly good used linar.

i hope this was clear!

regards

Taffy
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January 19th, 2009, 04:04 AM   #8
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you're right Taff, i was just fishin' but i understand you now, so were taking linars from 100mm to 102mm? that would be close to your 40cc's would'nt it be?

Azza.
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January 19th, 2009, 04:28 AM   #9
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yes mate!

regards

Taffy
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January 19th, 2009, 06:16 AM   #10
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Originally Posted by Taffy
we share certain manufacturers but as i'm aware, he does the 105s which need major work.

why am i secretive? try the words "balance factor" and "90%"

regards

Taffy
Jbs has told me that the 105mm was just to put in as stock parts, but the 108mm need to bore the cases out.

isent the liner on a 650 to thin to boreout to 102, not much material in it stock?
Better to have a steel or cast-iron liner?

Regards
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