Another 248/232 cam swap q's

Information on the naturally-aspirated KA24E and KA24DE engines.
User avatar
vda240
Posts: 304
Joined: Tue Aug 14, 2007 6:36 am
Car: 97 Nissan 240sx

Post

First of all I searched, dont know if hard enough but did

So I have an s14, and I want to do the cam swap.

i have to get a s13 248 exhaust side cam correct?

and once i get it i put it in my head, instead of my current intake cam? or what im confused on this.. Also do I need adjust timing?

Thanks!


User avatar
GO240
Posts: 289
Joined: Wed Feb 13, 2008 7:04 pm
Car: 1990/1/2/3/4/5/7 240sx lol

Post

heard! I'm putting in S13 cams in my S14 KA rebuild (since my S14's rusted...) yeah how does that work i'll need to know I'll credit you in my Tutorial

User avatar
spank044
Posts: 518
Joined: Sat Apr 29, 2006 3:56 am
Car: 1992 240sx with a Supercharged 350Z VQ for a HEART!

Post

zerothread?id=169323

zerothread?id=152578

http://jimwolftechnology.com/w...E.PDF

Read, if you don't understand. Just because someone tells you, it doesn't mean you understand. I am not going to tell you how I would do it because then if you bent 8 valves and had to get your head fixed, then you would be mad at me. Sorry, but all the info is in the first two threads and the third is the JWT cam install. Good Luck! When you get it figured out, do 248/232+.5.

User avatar
vda240
Posts: 304
Joined: Tue Aug 14, 2007 6:36 am
Car: 97 Nissan 240sx

Post

okay, read up some stuff

now will the 248/232 cam sound like this? this is the sound I'm aiming toward

http://videos.streetfire.net/v...6.htm

User avatar
spank044
Posts: 518
Joined: Sat Apr 29, 2006 3:56 am
Car: 1992 240sx with a Supercharged 350Z VQ for a HEART!

Post

My 248/232 +2.5 does not idle well at cold start up, but once it is warm it sounds like that., but mine has less lump in it.

User avatar
GO240
Posts: 289
Joined: Wed Feb 13, 2008 7:04 pm
Car: 1990/1/2/3/4/5/7 240sx lol

Post

sounds like an old V8 a little i don't know if i like that so much

User avatar
GO240
Posts: 289
Joined: Wed Feb 13, 2008 7:04 pm
Car: 1990/1/2/3/4/5/7 240sx lol

Post

and also does anyone know if theres gonna be problems if i put an S13 head onto an S14 block?

User avatar
vda240
Posts: 304
Joined: Tue Aug 14, 2007 6:36 am
Car: 97 Nissan 240sx

Post

so it does sound like that, cammed right? Also you said idles not well, does it stall or just idles bad? Thanks

Im picking the cams up today and installing them on my buddy's car before mine, haha so if we screw up my car wont suffer (he agreed to it, he thinks hes got it)

User avatar
spank044
Posts: 518
Joined: Sat Apr 29, 2006 3:56 am
Car: 1992 240sx with a Supercharged 350Z VQ for a HEART!

Post

Mine is not a daily so I don't have the solenoids for cold starting, but it only dies when its cold. Once it warms up it runs fine and doesn't stall.

sticky_steve
Posts: 163
Joined: Sun Dec 24, 2006 12:27 pm
Car: 1991 300zx
2003 350z

Post

Well here is my opinion on the 248/232 +2.5. When I first got my car, it had the sohc motor in it, so swapped out for a 93 dohc. Well I guess i got lucky and got a 93 block with a 95 head. the head had 232/232 cams in it and it ran just fine. Then i heard of the 248/232 swap and i have to say that i was kinda impressed. From 1000-2500 rpm it kinda lagged, but from 3k to 6k it really kicked. Then I did some more research and found out that there is an even better cam swap 240/248. And I was like thats the stock setup for the s13 cams. Well to the junkyard i went and pulled some cams. And I have to say that thsi feels way different. It is much quicker to respond and the power band is from 1500 rpm to 6500 rpm. Instead of lagging then a hard pull, it just pulls right away and it feels gooood! So just some personal experience from me, that dosen't mean not to do it, I just think that there is a better swap for the money that you are going to spend.
Bigvinnie wrote:
My cams are in the stock position.

240/248 it much better tha the 248/232.

I don't know why people even consider using the 232 for the exhaust. It's a horrible cam to use on the exhaust. It reduces scavaging and exhaust pulse. It also limits the KA's rev range. You won't see a KA peak higher than 5800RPM with that cam on the exhaust.

FYI, the higher the lift and duration cam on exhaust the more effecient the engine becomes in making longer rev range and higher peak HP.

PDMs cams are an example of showing an extended rev range with a slightly higher lift and duration cam on EX, when compared to the INT.
And just another thing to help, I have a friend with a dodge v8 (non-hemi) truck. With the 232/232 cams he would start to pull on me by 4th gear, with the 248/232 +2.5 I could bearly keep up with him, but with the 240/248 I was pulling him hard by the end of 3rd and blew him away in 4th. Like I said you don't have to go by what I'm saying, I'm just giving you my 2 cents!!
Modified by sticky_steve at 4:53 PM 1/21/2009


Return to “KA24E / KA24DE Forum”