Piston question.

[Les, slight limp]

Will a b23f piston fit a 230 engine, i understand the b23 n/a pistons were flat tops, cheers les.

[MikeHardy]

the Rod pin center to piston crown is taller in the 23 if i remember rightly.

[Les, slight limp]

Cheers mike, sounds like another cunning plan has just hit the buffers.

[linuxman51]

b230e pistons were flat tops as well, right?

[MikeHardy]

nope there dished.

http://www.mikeandminniehardy.co.uk/volvo/B230E.jpg

[Les, slight limp]

All the ones i have seen have had small dishes in them, maybe the earlier ones were flat tops, i've just aquired a 90 760 for parts which has a 530 turbo head on which will give me 10-1 cr, hell i don't even know if this +t is going to work properly yet, should know this weekend or next depending on the weather.

[BB-Q]

All the ones i have seen have had small dishes in them, maybe the earlier ones were flat tops, i've just aquired a 90 760 for parts which has a 530 turbo head on which will give me 10-1 cr, hell i don't even know if this +t is going to work properly yet, should know this weekend or next depending on the weather.

I've got a spare set of B230ET pistons and 13mm rods if you're interested.

[John V, outside agitator]

the Rod pin center to piston crown is taller in the 23 if i remember rightly.
46mm center of pin to crown on the B20/B21/B23
39,7 mm for B200/B230

So only about a quarter inch taller so 32:1 compression one way, or 3.2:1 compression t'other.

And that's ignoring the 23mm pin to 24mm pin.

[linuxman51]

no big deal. hey john i need to get up with you bout some rodz n pistonz

[Les, slight limp]

Would that make it an interference engine, sorry i couldn't resist.

How about a thick gasket, no, ok then.

Thanks for the offer mark, i'm not short of different dish pistons, however if you or anyone else has some flat tops that'll fit a 230 i'm interested.

[BB-Q]

I'm at a bit of a loss here Les. Why would you want to make a high compression turbo motor? Have you been reading and believing too many posts on this forum?

[linuxman51]

I'm at a bit of a loss here Les. Why would you want to make a high compression turbo motor? Have you been reading and believing too many posts on this forum?

:roll:

[Les, slight limp]

Just more research into detonation, i'm stuck with around 10psi so the only way to go is upping the c/r, sutermans dirtwagon was bloody quick but a total pig round town so i'm not really interested in 20psi, 10psi and the c/r as high as it'll go will do me also it will last longer, fingers crossed.