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Originally Posted by RBS14
single cam ka's are very popular among the oldschool datsun guys who are building 240s'. They like them better than DOHC's because they know them better. They are good engines, but the DOHC's are technically better. Valvetrain is much more sophisticated and therefor there is more potential. But 99.9% of people modding ka's aren't serious enough to get the full potential out of a sohc, so it's fine for most.
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Yeah I feel yah.....Im no noob to Nissans nor wrenching, ive had my SR it was fun, i sold it and i'll never own another one again...Nothing against it it was just a little boring after a while....I like the factr that the Single cam is (well depending on how early your KA was built and a few other variants) a stock 8.6:1 with potential for a lot of power (not stock of course) but all in all i like the cams ive seen for it, the way a single cam can be aggresive and still retain that sunday drive attitude with 1 cam....I realize that the head flow and desighn is arcaic compared to a twin cam but in all fairness ive seen the brutal oil starvation of a single cam and it runs for miles with little oil...VS. its big brother the twin cam, starve it for oil and you'll be walking to work for the rest of the week....Needless to say that technicly the bottom end of a twin cam and a single cam are identical, but yet retain some differences such as single cams less prone to fried rings vs the twin cam (maybe thats in my head, but i dont see many twin cams make it past 180K on the ticker and my single cam dogged to no end by me, punished like its a one legged red headed step child with freckles, making power to this day as good as the day it was bought off the showroom floor (by my dad) in 88 (its an 89) and its got around 210K on the ticker.....I just feel the single cam is a stronger (more durable) candidate for my purpose.....I just feel safer with the single cam, my 95 blew up at wow i think it was maybe 160K she was babied and then decided she wanted to throw a rod at 60MPH on the I-state...=(
To keep it simple Im old school, ive been fiddling with new technology mainly the SR20VE (yes VE) and the QR25DE (which has much potential in the right hands with a good budget) and the new VQ35DE as well as some single cam boosted honda's and im not too impressed....It seems the performace out of the box has become greater and the quality out the box has deminished....I think the KA was the last good thing to come out of Nissan after the death of the VG30E/T (both N/A and T) and the birth of the 91 classic SE-R.....
Its seems i am down a long road to critisism from my 2 sons who will fiddling with hybrids to make 100 HP but go 200 MPH as do we with 4cyl. to prove the small block and big block muscle cars we had what it took.....I abdicate my position of import know it all and fall into a nitch i so fouly hated....=)
And this is why I am sticking with the KA24E....