please check my math...

[fear_me]

hi guys,

just need someone to look this over and let me know how i did. I got a lot of this from searching so no search natzis please

 

So i would like to build a 3.0 turbo, i have lots of stuff in my garage, complete 75 motor with 4 speed manual and a complete 83 turbo with p90 head and 5 speed manual, yes it is a B&W which sucks i know. and a stroker crank with l24 9mm rods and ka24 pistons.

 

and what i have found is that i should build like this: n42 block with a 1mm over bore, plus the vo7 crank, 240 rods, and now the pistons this is where i think my math is off. i want a 87mm piston, duh.. with a 33mm pin hieght and a flat top this should give me around 8.1 cr @ 2960cc

but do you realy want a flat top piston in a turbo?

i thought you wanted a dished piston in a turbo?

if so then i would want a 34mm pin height with a 6cc dish giving me a 8.2 cr, but it would give me a positive deck height of .63mm and this is bad right?

basicaly what i am doing with this car is i would like to have it a daily driver when its nice in the summer, but also i would like to take it to the track and start getting into some bracket racing, I would luv to be into the 12's but with bracket racing as long as you are consistent you can do well.

And then maybe get into some local autocross events.

 

Oh and one other thing.... cams? this there is a lot of info on.... i was thinking a crane stage two?

 

Please let me know what you guys think.

 

thanks,

~andrew

[fear_me]

ok can some one tell me then if it will be ok with the piston .63mm above the deck height?

 

Thanks,

Andrew

[OlderThanMe]

What head gasket are you going to use?

[fear_me]

from my understanding to do this i need to use a 2mm head gasket