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just thought i'd ask if anyone has tried this.

Seems that the CA18 is quite a bullet proof engine and that this would be an easy way of boosting the capacity. I have a friend who had a CA18DET rebuilt which is putting out an easy 200kw at the wheels on around 15 psi on a motor built to take 30 psi and he mentioned this as an option, unfortunately he found out about ca20 after he started his rebuild.

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https://www.sau.com.au/forums/topic/78939-ca20-crank-into-ca18det/
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  • 2 weeks later...

I looked at this option when i was building my ca for my 1200ute. The oil pump drive on the crank is much smaller on the ca20 mayb could be fixed with something like a drive collar similar to the 32gtr upgrade. And also from memory the snout which the balancer is fix to is much small also. Another option was to put a tomei crank in which wasnt to badly priced $2400 through greenline. Ca's are very under rated engines we have made 415rwhp 26psi on bp ultimate.

  • 2 years later...
I looked at this option when i was building my ca for my 1200ute. The oil pump drive on the crank is much smaller on the ca20 mayb could be fixed with something like a drive collar similar to the 32gtr upgrade. And also from memory the snout which the balancer is fix to is much small also. Another option was to put a tomei crank in which wasnt to badly priced $2400 through greenline. Ca's are very under rated engines we have made 415rwhp 26psi on bp ultimate.

hi there Ryan1200. i have a ca18det and was wondering how did you get your ca18det running 415rwhp on 26psi. thanks

  • 1 month later...

CA's sure are underated...

I had a CA18 silvia, 180kms motor, never been rebuilt, still had 100km jap service stick on the moror. Just bolt ons.. Disco potato .64 3inch full zaust power fc, fmic etc the lot (with an unopened motor and no aftermarket cams)

And i was running 22psi on it all day everyday for 200kw for over a year before i decided to buy a gtr... its still going.. would be close to two years now.

It even saw 25psi on a few spikefull occasions. No car could beat it off the line interms of acceleration.

I don't know what people do to blow them @ 1bar or 1.2bar but my stock ca was a bullet.

I wouldnt forge a CA just for 200kw, but then again maybe i was just lucky with it.

It never lost to any SR.

Edited by SideOn

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