I've been hearing a lot of people boring the LS motors but i hardly ever hear about boring the B16a. I just had a few questions.

*what the safest that I could bore it out to?
*I was thinking 84mm. IS that too much?
*how much hp & tq should i expect to make on a stock B16a motor I.H.E ...........
if bored out to 84mm?(stock compression)
Planning to get GE sleeves.

any insite and coments are welcomed. Open to all possiblities

 

awwwh
common guys help me out. I asked a very inteligent question. Give me your thoughts on this.

 

Why do you want to ruin the ALMOST PERFECT rod/stroke ratio of the B16?!!!!! It's like commiting a sin!

 

please tell me how i would be hurting the R/S ratio? WTF
IF i understand it right it would not affect the frition & pressure amount on the sleeves at all. Am I right on this?

that is why i ask questions here. so that i may learn befor i act.

 

Yes you are right, just by boring that doesn't change the rod length or stroke of the motor just the bore size. If you were to sleeve a B16 to 84mm it would be somewhere around 1.7 ltr. if I did my math right. Although it really wouldn't be stock anymore since you would need to purchase some aftermarket pistons (rods as well) so you might as well bump up the compression and get some decent cams.


[Modified by ill phil, 3:17 PM 11/12/2002]

 

Once sleeved you can safely go up to 84.5mm bore if you plan of FI and even larger if you plan to stay NA.

(pi)(radius)(radius)(stroke)(# of cylinders)=displacement

84.5mm bore=42.25 mm radius for the bore=4.225cm
(3.14159)(4.225)(4.225)(7.7)(4)=1727.24........

The increase in torque and hp is roughly equivelent to the increase in displacement.

1727.24-1595=132.4
132.4/1595=.082
So by my math thats roughly 8% more hp. The real gains would come if you went FI with the added boost that you would be able to run with sleeves, rods, and pistons.

[Modified by racerxadam, 4:33 PM 11/12/2002]


[Modified by racerxadam, 4:37 PM 11/12/2002]

 

Bingo- Personally if I were to take the time to sleeve it, I would just go ahead and go 85mm... but thats just

 

thanks for the replys. damn mang (racerxadam) good *****.