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Ive looked into this subject a little and Ive come to the conclusion that there are as many pros and cons on both sides.
We both agree the KA24 has potential, and for someone who takes the time, piecing parts together for a turbo doesnt have to be insanely expensive.
For the SR20DET, there are lots of good points also.
1600$ to 2000$ will not even buy you an S13 SR20DET.
They dont come cheap for 240sx's. Thats the lowest price ive seen for Bluebird SR20DET's.
Its more in the price range of 2500$ for an S13.
Also, they dont come with EVERYTHING you need. Lots of things need to be fixed or beefed up. Clutch is #1 plus you really should also upgrade the fuel pump.
Rest of tranny is fine, since its the same.
Other things it doesnt come with and that you'll need are : intercooler, intercooler piping, blow off valve, and downpipe. That right there will run you a minimum of 1500$.
Then you have installation. I have no idea about costs here, but wont be cheap, and if you do it yourself, you will save, but it'll take some time and money for tools and little parts.
Concerning the bearings, they arent weak at all. But they are used engines who have been shipped from japan, and sometimes have been sitting on a floor for months, which also have been beaten like crazy by the previous owner cause he knew he was going to change the engine anyways. You just have to replace them as a precaution and its not that big a deal.
hmm.... what else...
Well you can do the setup like that, you can also add little things, like, turbo timer, gauges, etc..., but they arent necessities.
Thats about it, I guess. Lots of info to be had on :
www.heavythrottle.com Thats all they do, SR20DET installs and resale.
For good prices, get in contact with
Shaun@npclub.com for engine and parts. you can also find him at npclub.com as InfinitG our montreal nissan club.
He has several different suppliers from toronto and elsewhere.
Peace