S13 cams in S14 (my comments on the swap)

[redpotatoes]

Just did my swap of cams, I installed 2x exhaust cam (248,248). I noticed that my car lost some torque and doesn't seem to pull at low rpm. I did noticed that past 3500~4000 rpm, the car is pulling more then before. I will try a different setup in a week. The 248/232 setup (1xexhaust cam of S13 on intake side, and my stock 1xexhaust of my S14 on the exhaust side) Question, I guess that its "bolt on" for trying this setup (since I already did the 4 teeth for the exhaust cam of S13 on the intake side) ???

I am hoping to get more mid range out of this setup

[tryiian]

please post what happens when you put the 232 cam on the exhaust side.

[guyaverage]

I tried 248/232 and didnt really like it. The midrange was good, but it seemed like it made the low end seem mushy or something. I didnt like the response. I was very happy with 240/232 for really good low and midrange so I stuck with that.

[DjPantsSpecR]

what about 240/240? i'm building an s14 motor right now and i just put in my two intake cams cuz im sure as hell not gonna give up my 248/248s from the car im running.

Have you tried 240/240 and is 240/232 better than that? i'd rather retime everything while the motor is out of the car, but its really not that big of a deal, i just wanted to hear your experiences

[tryiian]

has anybody actually run an s13 intake cam on the exhaust side of a DE?

[DjPantsSpecR]

sorry, rather than thread jack i should have set up my own, plus i know someone has to run a 240/240 set up

[guyaverage]

I havent tried 240/240, I was running 240/248 and was just screwing around with different combos and ended up liking 240/232 the best.

[gepeto]

I got a pair of 248s in my trunk waiting to be installed...I'll post here once done but it's gonna have to wait a week or two

[DjPantsSpecR]

the 248/248 set up is definately advantagous if you set up all your other breathing and ignition timing to the top end. 248s easily pull hard all the way til at least 6500, but if you really need the extra 500 rpm you can actually use it a little, very little.

You'll notice more top end gain if you have an actual short ram intake. Not one you can buy, but the homemade diy kind that you route to where the battery used to be, but if its in a truck i'm sure you'll figure out what to do. also, it doesnt hurt to run a little more ignition advance if you dont burn crappy gas.

Everyone knows that the intake manifold sucks for high rpm power delivery, but no one ever shortens the intake tubing for a much easier "kinda-fix" If you go too short with the tube you'll notice you're making the most power where you cant even rev, so gradually lengthing it until you get the powerband to where you want is helpful to gain top end. You'll want to use a mushroom filter and cram it as tight against the inner fender as you can. and as long as you are just making stuff up, cut out the metal between the filter and the headlight, and make up a quick cold air box, this easily will net more horspower than any off the shelf intake

[dtowndrifter]

I see this is an old topic but a good one on these interchangable KA cams...How would i go about doing the timing on my KA S14 motor...If i have the S13 intake cam which is 240 duration and the S14 cam which is 232 duration on the exhaust side? So this is what i got~~>240/232....How do the timing on this setup? do i need to do any counter clockwise or clockwise method here? Or do you time it like i would the timing on the cam gears and timing dots on the S14 232/232 setup? help please =)

[WI_S14_Goldie]

how did u like 240,248? I hear its probably one of the better choices...

[dtowndrifter]

I see this is an old topic but a good one on these interchangable KA cams...How would i go about doing the timing on my KA S14 motor...If i have the S13 intake cam which is 240 duration and the S14 cam which is 232 duration on the exhaust side?So this is what i got~~>240/232....How do the timing on this setup? do i need to do any counter clockwise or clockwise method here? Or do you time it like i would the timing on the cam gears and timing dots on the S14 232/232 setup? help please =)

[DjPantsSpecR]

this is an old topic....

for 240/232 you dont need to adjust anything, so long as the 232 is an exhaust cam. i like 240/232 for my automatic, but there are better choices for cars with different intake and exhaust.

so leave the cam gears alone

[3dKa24]

I feel the 248 I and 232 E is the a good combo for a nice pull from 3500 til redline kind feels like a "V V T" kick.

[dtowndrifter]

dude ar you sure?

[Riubens]

yeap cause I have the 248/232 setup and feels like vvvvvtec after 3500 rpms.

[DjPantsSpecR]

of course im sure. if you dont think i know anything about swapping cams, feel free to search.

248/232 is nice, and id like to see a dyno against 240/232 (as has everyone else) but there is also a lot to be found in that set up with cam gears.

[new_to_drift]

i know that the s14 exhaust side is 232 but what car has the 248 duration?

[DjPantsSpecR]

91-93 s13's exhaust side is 248.

[new_to_drift]

kind of a change of subject.im taking my head off to replace my head gasket.inside the head, there is some oil buildup and gunk all around the top of the head.would i be able to take cleaning solution to it just to clean it.or would that be a problem since i would be taking the lubricant off the cams?

[HKSdrift3r]

Alritey.. Im thinkin about doing the 240/240 swap on my s14 5speed. I have the short ram intake where the battery used to sit. Can anyone comment that set up against the 240/232. I do not like to redline the car as I tend to shift at 6K. Also, has anyone had regrinds done? I was thinking about regrinding the 240(s13 intake) to a 244* to give it a 244/240. How do you guys think that will compare to the 248/240? Im just brainstorming right now, so please comment with some suggestions!

-George

[DjPantsSpecR]

well you can do whatever you want with whatever harmfulc leaning solution, as long as you do a really good oil change (or be very careful)

and use assembly lube. this stuff is available EVERYWHERE. it acts as lubricant until its washed out by the oil, every engine builder uses it, so no problem.

[DjPantsSpecR]

unless you use adjustable cam gears (look for my DIY) i wouldn't do 240/240. there is some power to be found here, but its going to require cam tuning.

i think 240/232 is more to your liking if you dont rev it out. its great for daily driving, and i know there is some power to be found with cam timing here too.

as for regrinds, from what ive heard about s13 cams 248s are 241 degrees, and 240s are actually 227 degrees if i can remember correctly, so if im wrong lemme know. but you can see that just makng a four degree difference would do almost nothing. there are other regrind options avilable to you in better lift adn duration

[new_to_drift]

do i put assembly lube around the cam lobes and the cams itself?

[DjPantsSpecR]

yeah hit it on all bearing surfaces and then on the lobes.

i never do this, i just use oil from the head whenever i swap and clean cams. However, do as i say, not as i do, if yo want to do things right.

[new_to_drift]

if i swap the s13 exhaust cams into my s14 to make the 248/232 duration.would i require cam timing just to get it running right?if i dont have adjustable cam gears how do they adjust the cams? just mess with the distributor and timing? thanks

[DjPantsSpecR]

no, it'll run just fine with using just the four teeth method. you'll still be satisfied with the top end gains of the 248/232.

its jsut that eventually, maybe you'll start experimenting with cam timing. if you dont have adjustable cam gears, you simply search DIY cam gears and redrill your own gears using the template ive included. all the instructions are there. but i can tell at this stage this isnt something to try yet.

you dont need ot mess with your distributor, but you could advance it a tad, to compliment your gains.

[new_to_drift]

awesome.thanks a lot for your help, ya im not ready for a DIY cam gear yet.but once i research this kind of stuff more i will.