
So looking for some input to help me decide.
Do I keep the CA18 and just work it? This option will cost a few bucks and there's been a few unsuccessful CA18 builds on this very same forum. Even if it comes of right, will it have enough power? Cost? +/- R20k?
Do I go SR20DET? I can get a complete front clip incl. ecu, harness, maf, raidator etc etc, which will make for a very simple swap, as I just need to bolt over everything into my chassis, and possibly just renew the oil pump and water pump for insurance. This option will be the easiest, but after spending that R20k in total it will essentially be a stock SR20det which is not exactly something to write home about. Another pro is I'm very familiar with SR20's already.
Next is the RB20DET. Old technology and power wise about the same as a SR20DET. Not sure which has more potential, but RB parts, like CA's are a bit pricey. Also the swap is slightly more complicated with custom engine mounts, a new gearbox and some panelbeating of the tunnel to get the starter motor to clear. Stock it has a weak-sauce turbo, which will need upgrading without a doubt. Not sure if this motor can handle a decent GT2876??? Motor R6k, box R3.5k, New turbo, some custom parts. EMS. So nothing under R20k here either. 6cyl sound rocks though!
Last on the list is the RB25DET. Stock motor will be very close to the power I require. Not sure how hard the swap wil be? I'd like to keep the aircon, p/s, abs etc. Can I? Cost is R9500 for motor, R3900 for the box, EMS, a few other bits I expect, probably custom engine mounts.
So whats your verdict? Feel free to chip in or correct any misconceptions about any of these motors...