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Similarities between CA18 and CA20
Posted: Tue Mar 18, 2008 12:31 pm
by Gary57
What makes the CA20 different from the CA18?? Surely it cant just be bored that big.
Why not make a CA20 rather than a SR20??
Posted: Tue Mar 18, 2008 12:42 pm
by Vlade
I heard its just the crank and rods...
But yeah... Not allot of them around, and the motor is not a square design no more where your bore and stroke is the same as with the CA18
Posted: Tue Mar 18, 2008 12:59 pm
by Gary57
Yes but would gain in torque with the added stroke.
Posted: Tue Mar 18, 2008 1:28 pm
by veecee
and lose revability!
the ca20 crank is weak! dont do it man!
Posted: Tue Mar 18, 2008 1:32 pm
by Doctor G
What makes the CA20 crank weak VC? CA18 is 4CW too.
Then again, CA was built for boost right.
What about a KA24 crank? Can that fit in a CA?
Saw a guy doing a RB20DET in his s14. He was going ape over the way it revved so I'm guessing it's oveer-square. Also, he kept hinting that his mate in a RB25 was his biatch!?
Posted: Tue Mar 18, 2008 1:34 pm
by veecee
ya the RB20 has tiny little pistons. lighter, smaller, revs quickly!
Posted: Tue Mar 18, 2008 1:36 pm
by veecee
RB20 - 2.0 L (1998 cc, bore: 78.0 mm, stroke: 69.7 mm)
Posted: Tue Mar 18, 2008 1:36 pm
by Doctor G
Okay lets not jack the thread.
Will a CA18 crank fit a CA20 block? That should give an over-square design with somewhat larger displacement?
I know a CA20 botton end can be done, just a bit of work do make pulley's line up etc.
Posted: Tue Mar 18, 2008 1:56 pm
by Gary57
Na I am not looking at doing it VC was just thinking if it would work lekker.