ka24e vs. ka24de

[dakmas94]

im trying to raise the performance of my ka24e but i cant find any cams for it. would i be able to put cams from a ka24de into it? and what about headers?

[nismoracingsx]

http://www.matrixracing.com/p-3549-89-9 ... shaft.aspx Gude Cam
http://www.ilovebodykits.com/product/28 ... eader.html Headers

Go for it, but honestly, your best bet is gonna be to go turbo if you want performance out of your single cam..miss the single cam though ^_^

[breadbox]

Honestly Realised today. Never buy a header. leave the stock piping there if its not falling off from rust. And Save for turbo. Its what they crave. As long as the motor runs fine now. It'll run better turbo'd and on a good tune.

[driftbiscuit]

Does it bother anyone else that in a ka24e he should have said cam, instead of the plural cams? personally I would take a dual cam any day

[seang]

DE cams will not work in an E, no.

[canyouSAY240]

might want to change the coonnecting rods to forged ones

[Gabes13]

might want to change the coonnecting rods to forged ones

For an all motor build? i don't think you have to.

[240sxAli4Life]

who ever told you a header is bad, its not!! They dont know f*** s***!! You may not notice a huge power gain but you will notice torque!! And it makes your engine breath better!! Although to get the MOST power out of a header you need to bore out your block and your throttle body!! And get an air intake for sure!! If your running non turbo i dont reccomend getting a 3 inch exhaust, get a 2.5 with a 4 inch tip!! And a test pipe would be good too!! You dont need to do cam work!! If you do that you will need lots of other stuff inside your engine to keep up with the 1 cam, and you will need a tune!! I had SOHC and when nissan made the SOHC they had torque in mind!! So think of it this way... anything that spins on your engine, if you make it lighter, your car will accelerate alot faster, and decelerate alot faster!! Get a lightweight crank pully, and and a lightweight flywheel! Although with a lightweight flywheel you will take off faster and slow faster from the pushing in or letting out the gas pedal. And you will gain acceleration (bottom end power) but you may loose SOME top end power!! But in racing you need a lightweight flywheel!! And get a 2 inch core aluminum radiator, and get dual electric fans!! Take out your stock clutch fan, it does nothing really lol!! That will give you engine more power, and torque!! What mods do you have on your ka24e right now???????????????

[240sxAli4Life]

Oh and take out your ac system in your car if it doesnt work!! Most of them dont! That will make your car lighter in general, and may give you 1 or 2 hp gain!! haha baby steps thats how you make it!!

[Gabes13]

Installing a header doesn't mean you'll net more torque. The power output all depends on the diameter of the piping, the lengths of the primary and secondary tubes, and the size of the collector. All those header attributes will dictate whether a header produces more torque or horsepower and where in the power band they peak.

To increase the revs and powerband of any motor, cams are required. Head work and valvetrain depends on the size of the cams. The kaE motor head is very restricting from the factory so any head work is beneficial. As with any build a tune of some sort is recommended.

A light weight crank pulley should not be recommended because of the excessive harmonic vibrations that occur from long stroke engines. I haven't seen one crank pulley on the market that addresses that issue for the kaE.

I light weight flywheel does not necessarily increase output but rather the throttle response of the motor. The revs may rise faster and drop faster, but it most likely wont dictate your final power output.

Lastly, The stock clutch fan is better than electric fans, period.

[canyouSAY240]

might want to change the coonnecting rods to forged ones

For an all motor build? i don't think you have to.

it just my opinion because i know the rod are cast not forged, iv had a rod brake, but i just have bad luck

[asoomal]

who ever told you a header is bad, its not!! They dont know f**king s***!! You may not notice a huge power gain but you will notice torque!! And it makes your engine breath better!! Although to get the MOST power out of a header you need to bore out your block and your throttle body!! And get an air intake for sure!! If your running non turbo i dont reccomend getting a 3 inch exhaust, get a 2.5 with a 4 inch tip!! And a test pipe would be good too!! You dont need to do cam work!! If you do that you will need lots of other stuff inside your engine to keep up with the 1 cam, and you will need a tune!! I had SOHC and when nissan made the SOHC they had torque in mind!! So think of it this way... anything that spins on your engine, if you make it lighter, your car will accelerate alot faster, and decelerate alot faster!! Get a lightweight crank pully, and and a lightweight flywheel! Although with a lightweight flywheel you will take off faster and slow faster from the pushing in or letting out the gas pedal. And you will gain acceleration (bottom end power) but you may loose SOME top end power!! But in racing you need a lightweight flywheel!! And get a 2 inch core aluminum radiator, and get dual electric fans!! Take out your stock clutch fan, it does nothing really lol!! That will give you engine more power, and torque!! What mods do you have on your ka24e right now???????????????

Keep the fan clutch assembly.

You won't gain torque with a header. I have a DC Sport one and it shifted the power band a lot higher and a lot louder. You'll need some nice cams to take advantage of the header.

[240sxAli4Life]

A 2 inch core alumium radiator is way better than the stock clutch fan mr. doesnt know s*** Gabes13!! Why do you think when you have a built motor everyone does dual elctric fans and aluminum rad!! It will cool your engine alot better than stock clutch fan!! And it will give you more power!! Now do the other things first before putting in aftermarket cams!! Ya aftermarket cams will help, but you need to do more to the internals of the engine to get the most result!! But you have to get your ecu tuned when you put better cams in becasue since the power gain your engine will be using more fluids, and if its still giving is stock than you could burnout your cams!! Its really an all or none situation! Either keep it stock, or do lots of engine work and a fuel tune to run aftermarket cams!! I would keep them stock for now, and do what i said before first!! And putting a header on WILL FOR SURE INCREASE AT LEAST 3 HP, AND MORE TORQUE!!!! IT DOESNT DEPEND!! GET A PACESETTER OR OBX HEADER FOR YOUR SOHC!!

[asoomal]

Stock fan will outflow an electric fan.

Read this if you got time. http://www.aaroncake.net/rx-7/efanmyth.htm


Actually you don't have to do much internals for cams. New springs, retainers, valve stems, larger lightweight valves?, maybe a port and polish.

Pacesetter sucks.

[Gabes13]

Bro, clutch fan and shroud cools better than a e-fans. And the reason you need a tune with aftermarket cams is because the high lift and duration can pull vacuum from the plenum and cause a poor idle, not because "your car will make more power and burn more fluid". That doesn't even make any sense. And be nice.

[kyhunter89]

clutch fans spin all the time and slow down the revs of the motor, they also blow more fan when at higher rpms i.e. when your moving and airflow isnt a problem. efans from vics, tauruses, etc blow more air at idle. Aluminum rads doesnt always flow better than a copper/brass/steel unit either.

to the O.P. whats the goal for your car in the end?

[asoomal]

Barely slows down the revs. On the highway, it'll just freewheel.

[240sxAli4Life]

electric fans and aluminum radiator is better!! it cools your engine more!! espessially if your going to turbo your car, or run all motor!

[asoomal]

No.

Clutch and Aluminum Rad is better.

[kyhunter89]

have either of you ever used a copper/brass rad in the same car as SAME SIZED aluminum one?

[asoomal]

No, I bet its probably much more efficient though.

[Seanzyyy]

electric fans and aluminum radiator is better!! it cools your engine more!! espessially if your going to turbo your car, or run all motor!

zomg calm down with the !!!!!!!! please.

the clutch fan is probably the best type of fan to have,
as it is also one of the most reliable (if not the most).

OP if you're keeping it NA,
get headers if you have some extra cash.

if you're planning on going turbo later on,
save that money for some turbo parts.

[240sxAli4Life]

Installing a header doesn't mean you'll net more torque. The power output all depends on the diameter of the piping, the lengths of the primary and secondary tubes, and the size of the collector. All those header attributes will dictate whether a header produces more torque or horsepower and where in the power band they peak.

To increase the revs and powerband of any motor, cams are required. Head work and valvetrain depends on the size of the cams. The kaE motor head is very restricting from the factory so any head work is beneficial. As with any build a tune of some sort is recommended.

A light weight crank pulley should not be recommended because of the excessive harmonic vibrations that occur from long stroke engines. I haven't seen one crank pulley on the market that addresses that issue for the kaE.

I light weight flywheel does not necessarily increase output but rather the throttle response of the motor. The revs may rise faster and drop faster, but it most likely wont dictate your final power output.

Lastly, The stock clutch fan is better than electric fans, period.

Okay... Lightweight flywheel, and lightweight underdrive pullys are great things to have!! They dramatically increase acceleration and deceleration of your car!! You gain low end power, but your high end power (top speed) stay the same!! But you will be able to get up to speed alot faster!!! (which is what you want)! You said that you havent seen a underdrive pully for the SOHC KA?? IDK where you look for parts, but here is a link to one!! You can click down below for the lightweight pully for the KA24DE or the KA24E!! HERE IS THE LINK BELOW!!

http://www.enjukuracing.com/crank-pulle ... -6676.html

Ok, an my buddy dave has a 1989 240sx Hatch with the SOHC just like my 1990 one i used to have, and he has an all stock car except for a HKS Hi Power exhaust, lightweight underdrive pully, lightweight flywheel, and a ACT Stage 1 clutch!! And when he put that pully on, we for sure noticed a power gain in acceleraton! And then later when he got the lightweight flywheel installed, OMG an even more acceleration increase!! And alot of people say you loose hi end power when you do that but, his stayed the same!! he took the govener off his, and hes got a digital auto meter MPH gauge and he can still get it to about 135mph! Just like he could before he had anything lightweight, only exhaust and govener gone! Usually on a stock SOHC 240sx your car will hit 115mph then the govoner will kick in, and it will slow down!!

[Rev_D21]

A light weight crank pulley should not be recommended because of the excessive harmonic vibrations that occur from long stroke engines. I haven't seen one crank pulley on the market that addresses that issue for the kaE.

You said that you havent seen a underdrive pully for the SOHC KA?? IDK where you look for parts, but here is a link to one!! You can click down below for the lightweight pully for the KA24DE or the KA24E!! HERE IS THE LINK BELOW!!

http://www.enjukuracing.com/crank-pulle ... -6676.html

He said he hasn't seen one crank pulley that addresses vibration at high RPM not an underdrive pulley, read.

[breadbox]

A 2 inch core alumium radiator is way better than the stock clutch fan mr. doesnt know s*** Gabes13!! Why do you think when you have a built motor everyone does dual elctric fans and aluminum rad!! It will cool your engine alot better than stock clutch fan!! And it will give you more power!! Now do the other things first before putting in aftermarket cams!! Ya aftermarket cams will help, but you need to do more to the internals of the engine to get the most result!! But you have to get your ecu tuned when you put better cams in becasue since the power gain your engine will be using more fluids, and if its still giving is stock than you could burnout your cams!! Its really an all or none situation! Either keep it stock, or do lots of engine work and a fuel tune to run aftermarket cams!! I would keep them stock for now, and do what i said before first!! And putting a header on WILL FOR SURE INCREASE AT LEAST 3 HP, AND MORE TORQUE!!!! IT DOESNT DEPEND!! GET A PACESETTER OR OBX HEADER FOR YOUR SOHC!!

Wow. You probably read ads and believe all the HP ratings they will add to your car's performance.

I think just replacing the down pipe is better than complete header. With the header and 2.5" you'll have great accel from 3200-5500 but before that you are losing a bit of the low end pep. For most driving I'd rather have more low end pep than a car fun only at highways speeds. I can get 3hp just going cat-back, who cares. If I want hp increase I'm looking for 30+ gains, not negligible gains.

I have a Stock SOHC 89 Coupe for a daily with the stock copper/Brass/Steel Rad. It cools more than fine but I recommend an in line oil cooler for the trans, I am about to do this after it warms up. I also have a BNIB Alu radiator and its the same size but has more cores and cannot bolt up to the auto trans so It'll probably wait til I go RB20.

Clutch fans only do actual cooling during idle. Efans are on alot of cars because they don't know how clutch fans work. Plus the way most people wire them without a thermostat or relay, puts more draw on the system than a clutch fan.

Lightened crank pulleys will get you better gas efficiency but that doesn't mean its better than stock.

On the whole flywheel thing I prefer a stock flywheel, its easier to stay in the power band and doesn't drop revs as quickly. I am wanting to eventually try the white bunny mod, on my project turbo hatch.

Being that this is kind of a comparison thread, here are some things I've noticed between the two motors.

SOHC has more belts, meaning If you don't want an accessory, cut the belt.

SOHC has an external oil pump, so if you are getting into a random 240sx then you can inspect the oil pump with out much trouble.

SOHC has really easy to find injectors for upgrades, like RX-7 injectors pop right in, I think DSM eclipse injectors too.

DOHC has Power steering and water pump on one belt, if this belt gets loose the power steering messes with the water pump and it overheats

On both water pump and thermostat replacement is relatively easy.

Overall they both are very easy to work on and get parts for. Plus they like boost.

Also O&J Performance makes SOHC camshafts and mech lifters if you want them.

[DizzyKitty]

A 2 inch core alumium radiator is way better than the stock clutch fan mr. doesnt know s*** Gabes13!! Why do you think when you have a built motor everyone does dual elctric fans and aluminum rad!! It will cool your engine alot better than stock clutch fan!! And it will give you more power!! Now do the other things first before putting in aftermarket cams!! Ya aftermarket cams will help, but you need to do more to the internals of the engine to get the most result!! But you have to get your ecu tuned when you put better cams in becasue since the power gain your engine will be using more fluids, and if its still giving is stock than you could burnout your cams!! Its really an all or none situation! Either keep it stock, or do lots of engine work and a fuel tune to run aftermarket cams!! I would keep them stock for now, and do what i said before first!! And putting a header on WILL FOR SURE INCREASE AT LEAST 3 HP, AND MORE TORQUE!!!! IT DOESNT DEPEND!! GET A PACESETTER OR OBX HEADER FOR YOUR SOHC!!

Dude, i have a solid gold radiator with an electric clutch double fan. WAAAAAY better then your lame setup.

[mp_s13]

OP if this is your dd do not take out the ac. Why does every one think that by gutting out all your ac you are going to shave so much weight you are going to be insanely faster. The only time you really lose power from your ac is when you turn it on, otherwise the pulley is freespinning and not putting a major load on your motor. No offense 240sxAli4Life but from reading all your post you honestly sound like you just read every import tuner you could and now you are handing out build advice for unecessary mods.
OP you know the obvious flaws the kae has from the factory and with an all motor setup the majority of your power comes from the headwork. With that in mind a good clean up job with some mild porting would be very beneficial to your build. You dont just want to hog out your ports though as that would kill your velocity. You have to remember its not so cut and dry as making it as big as possible. Everything in your motor has to be tuned to work with each other and hogged out ports is going to flow too much with the stock e-cam and the low compression that the e has thus causing a loss in power. I would focus on the basics. Port match, clean up the bowls, a good valve job and in the end a mild cam would not hurt either. With a mild cam you could get away with using your stock valvetrain and it would run descent untuned.That is not to say though im saying dont tune it because a tuned car will make more power and safer power at that. That on top of your usual bolt ons i/h/e would be a pretty sweet ride.

[mp_s13]

so funny that this thread started out just asking about cams and turned into this. I also forgot op that another company to check with would be delta. They do cam regrinds and are pretty popular with the honda crowd. I think their regrinds run for around a $100. They are pretty generic but hey worth a shot.

[240sxAli4Life]

A 2 inch core alumium radiator is way better than the stock clutch fan mr. doesnt know s*** Gabes13!! Why do you think when you have a built motor everyone does dual elctric fans and aluminum rad!! It will cool your engine alot better than stock clutch fan!! And it will give you more power!! Now do the other things first before putting in aftermarket cams!! Ya aftermarket cams will help, but you need to do more to the internals of the engine to get the most result!! But you have to get your ecu tuned when you put better cams in becasue since the power gain your engine will be using more fluids, and if its still giving is stock than you could burnout your cams!! Its really an all or none situation! Either keep it stock, or do lots of engine work and a fuel tune to run aftermarket cams!! I would keep them stock for now, and do what i said before first!! And putting a header on WILL FOR SURE INCREASE AT LEAST 3 HP, AND MORE TORQUE!!!! IT DOESNT DEPEND!! GET A PACESETTER OR OBX HEADER FOR YOUR SOHC!!

Wow. You probably read ads and believe all the HP ratings they will add to your car's performance.

I think just replacing the down pipe is better than complete header. With the header and 2.5" you'll have great accel from 3200-5500 but before that you are losing a bit of the low end pep. For most driving I'd rather have more low end pep than a car fun only at highways speeds. I can get 3hp just going cat-back, who cares. If I want hp increase I'm looking for 30+ gains, not negligible gains.

I have a Stock SOHC 89 Coupe for a daily with the stock copper/Brass/Steel Rad. It cools more than fine but I recommend an in line oil cooler for the trans, I am about to do this after it warms up. I also have a BNIB Alu radiator and its the same size but has more cores and cannot bolt up to the auto trans so It'll probably wait til I go RB20.

Clutch fans only do actual cooling during idle. Efans are on alot of cars because they don't know how clutch fans work. Plus the way most people wire them without a thermostat or relay, puts more draw on the system than a clutch fan.

Lightened crank pulleys will get you better gas efficiency but that doesn't mean its better than stock.

On the whole flywheel thing I prefer a stock flywheel, its easier to stay in the power band and doesn't drop revs as quickly. I am wanting to eventually try the white bunny mod, on my project turbo hatch.

Being that this is kind of a comparison thread, here are some things I've noticed between the two motors.

SOHC has more belts, meaning If you don't want an accessory, cut the belt.

SOHC has an external oil pump, so if you are getting into a random 240sx then you can inspect the oil pump with out much trouble.

SOHC has really easy to find injectors for upgrades, like RX-7 injectors pop right in, I think DSM eclipse injectors too.

DOHC has Power steering and water pump on one belt, if this belt gets loose the power steering messes with the water pump and it overheats

On both water pump and thermostat replacement is relatively easy.

Overall they both are very easy to work on and get parts for. Plus they like boost.

Also O&J Performance makes SOHC camshafts and mech lifters if you want them.

Why dont you just keep your car stock then, if all the aftermarket parts are bad why do they make them??? Why do so many people use them??

[asoomal]

They're not bad, just most of them are pointless.