Post by
420sxse »
https://forums.nicoclub.com/420sxse-u27656.html
Mon Apr 17, 2006 7:55 am
1st, you don't need a turbo to drift. Stock is more than enough. 2nd, It's all about preference, but the reasons for preferring a KA (especially in the Americas) are pretty good.Don't order a used engine and drop it straight into your car. That would be stupid, no matter what it is or where it comes from. You need to rebuild first because you don't know what condition the engine is in. I don't care what the seller says or how reputable they are. They just grab engines out of junkyards (junkyards with very humid salty air at that, in Japan's case). So, you have the cost of rebuilding to figure in, which is going to be a LOT more expensive than for a KA...the parts need to be shipped from Japan.. That's another thing to consider for the future when you may need to fix something: ease, cost, and time to get the parts.Really, the engines are pretty similar. The KA is a bored and stroked version of the SR. They made the KA block out of iron because the cylinder walls would have been too thin for aluminum, the compression ratio is lower on the SR, and it has direct ignition. I don't know about other differences, but the KA does have a forged half counterweighted crank, forged rods, oil squirters under each piston, and it's tough as nails with the cast iron block and full girdle. The main reason the KA can't rev is because of the longer rods. I think the valve train is pretty similar, but that's a guess. I know companies like to re-use components because engineering time is expensive, and the bottom line always comes first. Now, about performance, think about it. The KA has more displacement (more HP and low-end torque). Your turbo will spool quicker and the engine will make more power under the same boost as an SR. Plus, the KA makes it's power earlier on, so revs are unnecessary. Not that high revving engines are inferior, there are just different paths to the same destination. I'd rather save the strain on my engine and not need to spin above 7,000 RPM to make peak power, but that's me.