The reason I mention the KA is b/c of the weight with a factory KA.Yet you can't seem comprehend a comparison. The reason I don't like SR's is most of them are crap. Most of the higher HP ones have blown their engines mutiple times. Hell there are 6 240s_over_atlanta guys having to rebuild their SR's right now due to poor design. The RB is a more reliable platform. Plus with a Oversquare setup can rev higher than a SR can. This is why I don't really like the Nissan section in IA. Most of the guys on here are simple minded and can't seem to figure out why one person would want something other than what they have. See most of you have only recenlty joined the "SR" club, and with only minimal knowledge think you know everything about SR's and RB's. I was working on SR powered 240s back in 98. Now take yourself for instance I am sure you have only been working on Nissans for what 3-4 years maybe? Yet you seem to know all when it comes to a 240sx and what is/isn't best for a setup. Well you don't and you need to become a little more informed before you post b/c when you do you sound ignorant. Take for instance the referance to the KA as a "truck motor". Funny isn't it that the KA came in more cars than trucks. The KA is a good motor with a lot of potential yet most of you throw it out as being non "JDM tyte yo". This is why I don't post on IA as most of the people on here are wannabe thugs and impotent minded morons...