want a new cam

[ls1240]

i have a 90 s13 hatch with ka24e and i want a bigger cam but i dont know what to get and where to get it from can someone give me any ideas

[OutToWinPAHC]

S13 dual exhaust or Altima cam swap, you can search those, or JWT, and Brian Crowler sell some cams.

[seang]

PDM C.404 is the one I would go with if I were building an NA ka24e. OandJ Performance sells the least expensive one I have come across. Beware, though, how big a cam you run because dynamic compression drops relative to static compression the bigger the cam gets, so if you aren't running enough static compression on a stock motor, a cam that is to large is almost like lowering the compression--if that makes any sense. You have to keep your dynamic compression in the optimum range to get optimum efficiency and performance, so ask the cam maker what they recommend. I have seen people degree cams, so make sure to ask about that, too--I'm not sure what the degree of a stock ka24e cam is; but it might be -2 if I remember correctly.

A stock SOHC has 8.6:1 comp, or maybe you have the 9.1:1 early model; either way it could still use more for a 272 cam (many aftermarket cams are around this duration for the ka-e), I would say 10:1 or a little higher.

I just posted a youtube video in a thread about a day older than this one (in this forum) made by an owner who used a Nismo R4 SOHC camshaft on a stock motor. It had a mean, lopey idle and he commented that the power never dropped off, it gained 5hp and lost 15lbft, so he swapped back to stock to get the torque back. I bet if he had higher compression along with that R4 cam it could have done better--that and tuning with a wideband.

[ls1240]

Thanks man someone told me 260 cam is the biggest I should get but I wanna upgrade my ka but I wanna do more than just intake and exhaust and I don't have the money for a turbo nor the knowledge to install it and I don't think it's worth it for the sohc but I need more power and an LSD fast lol

[seang]

A stock SOHC exhaust manifold is not that bad performance wise and can support more power than stock, the rest of the exhaust can probably get changed out.

[ls1240]

Yeah I'm planning on getting a apexi n1 exhaust system just need to raise enough money I have a pipe on it right now but it gives no effect performance wise