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Egg Lover
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Discussion Starter #1
What is the difference between Altima's 2.4 engine and the SR20DE other than size? They look similiar. I drove a 2001 Altima and it had quite a bit of pep. More than my 93 NX2K auto.
 

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G-unit
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They look similar? The KA24 looks more like a GA16 to me. The valve covers on the GA and KA look alike to me. The engines (SR,KA) have 2 things in common they are made by Nissan and have Chain driven cams, thats about it.
 

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now on the West side!
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Yea...totally different engines. My 240 has that same motor, and its slow revving, not as smooth, but it does have more hp and torque.

also, i don't know about the gear ratios, but if the altima had shorter gearing, it most definitely could feel faster.
 

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now on the West side!
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Yea, they are both 16valve DOHC engines. The thing that distinguishes the KA24DE though is its long stroke. Slower revving, but more torque...i think at least....
 

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Stick with the SR20...ive driven my boys 240sx 5spd and its just not nearly as smooth as the sr20. Plus the gearing is better on the sr20, gotta love how 5th gear feels like its actually 4th gear, it has good power on hand. Whereas the 240 and im sure the altima too have 5th gears that feel like overdrive gears almost. Not to mention the altima isnt as light as the 240 which is still heavier by a couple hundred pounds or so then the se-r. Basically, the sr20 is a known performance engine, while the ka24de is a truck engine.

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and more hp. they are totally diffrent engines, totally, nothing in common......... except they are 4 cylinders, dohc, fuel injected, and are gas powered, but so are alot of cars..........
 

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<font face="Verdana, Arial" size="2">Originally posted by 92SE-R:
Your auto sucks. Try driving a manual SR20DE.


Terrin
92 SE-R
</font>
True that dude, auto anything bites....once you drive a manual sr20 your power woes and altima comparison will be gone.



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1992 NX2000
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K&N Cone intake, Bosal Performance muffler and 2.25" cat back
 

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Jah Rastafari
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Well in my opinion the KA24DE motor is just as capable as the SR20DE. If there were as much parts made for the KA24 motors as the SR20 motor the KA24 motor would most likey be more superior.
 

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<font face="Verdana, Arial" size="2">Originally posted by Andreas Miko:
Well in my opinion the KA24DE motor is just as capable as the SR20DE. If there were as much parts made for the KA24 motors as the SR20 motor the KA24 motor would most likey be more superior.</font>
although it is ONLY your opinion you can't just say something like that and not back it up w/ something. i mean if you knew somebody who had prototype parts or spent a lot of $$ to increase the performance aspect of that engine, then that would be acceptable. anyone could say what you say about a lot of engines!



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stiletto

99 Sentra SEL platinum gold w/ HS headers and CAI, custom b-pipe, arospeed exhaust, magnecor 8.5mm wires, eibach pro-kit, courtesy nissan frt and rear STB, smc short shifter, greddy knob, jwt clutch, k&n crankcase breather, 17 deg. timing, EL indiglo HVAC, clear corners and taillights and not a single stock bulb.
 

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Jah Rastafari
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7,677 Posts
Well what I told you I can back it up. I have personally built some of these motors for some of my friends and I have seen some very impressive times on cars that weigh alot more than the SE-R. Ex 94 Altima with hot shot header, 2.5 Ex, Popcharger and 100 shot of NOS 12.9 at 106MPH. 240 SX with many boltons and no cams again NA 14.7 at 93 MPH and 12.7 with 100 shot NOS. I can tell you this also I have built many SE-Rs that have run 12 sec and many SE-Rs that have run 11 sec and one or two that have run 10 sec and also one SE-R that has run 9 sec thats not my opinion thats a fact. So as you can see I have much knowledge of the SR motor and I still lean towards the KA24 motor. Thats still my opinion the KA24 motor is a better motor it just does not have the parts backing from the industry.

[This message has been edited by Andreas Miko (edited 09-13-2001).]

[This message has been edited by Andreas Miko (edited 09-14-2001).]
 

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<font face="Verdana, Arial" size="2">Originally posted by NismoNx2000:
Stick with the SR20...ive driven my boys 240sx 5spd and its just not nearly as smooth as the sr20. Plus the gearing is better on the sr20, gotta love how 5th gear feels like its actually 4th gear, it has good power on hand. Whereas the 240 and im sure the altima too have 5th gears that feel like overdrive gears almost. Not to mention the altima isnt as light as the 240 which is still heavier by a couple hundred pounds or so then the se-r. Basically, the sr20 is a known performance engine, while the ka24de is a truck engine.

</font>
lets not forget that the 240SX has the exact same gear ratios as the silvia... the 240SX SCREAMS SR20DET swap (thats the engine the chassis was made for... and i dont mean that figuratively, it really was)

i fully plan on getting a 240SX with an SR20DET

other differences between altima and 240SX
altima is FWD, 240SX is RWD with multi-link independant rear suspension

240SX may be geared long and have a watered down engine.. but the handling more than makes up for it

the handling has been compared to porsche 924S / 944

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Shawn
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current car(s):
1989 Acura Integra LS
1997 200SX SE-R
1973 Super Beetle

Next car:
AE86 Corolla GT-S
 

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now on the West side!
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I liked the KA motor...had no real qualms about it. after all, it got the job done. however, the motor is just too coarse. its not very smooth, but like shadowboy said, the handling more than makes up for it.

the 240 equipped with Super HICAS pulled the same skidpad numbers as the TTZ (.89 or .90). Being as that the 240 is still in my possession, as is obviously my SE-R, I plan on going SR20DET on both cars in the future.


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1991 Sentra SE-R
Cone intake, NismoBorla Exhaust, 19* timing, Crane Cam FireWire (8.5mm), 2 12" Kicker Competitions
 

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pwnd
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Yea the ka isnt a bad engine. Decent for what they mainly used it for, the altima and trucks. Plenty of torque. Yes they do feel quicker than a stock se-r, but put them side by side....se-r will be a bit quicker. Its the loads of torque low down that really does it. And then comparing it to an auto sr20de it will really feel quicker. Cause its torque kicks in much much lower than ours. I have an auto classic, friend has a 5speed alty, and another has an auto alty. Their cars both feel faster than mine, but Ive proven it a few times that mine is actualy quicker.

Make sure your timeing is dead on 15 or above for an auto. if not you REALLY will be slow off the line.

Not like we've never proven an alty cant keep up
, convention....

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Thats my opinion and I could be wrong

93 classic
Aztec Red, Automatic, POP, STB, OEC battery tie down, AD22VF's, Pirelli P4000's

 

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I have a 95 200 and a 2000 altima. I like the both, but my 200 feels much faster. the 2.4 is a fun engine. I just don't like the way the altima rides. I am going to fall asleep at the wheel one of these days..
I have heard of some fast 240's though.
 

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my uncle has a truck with the 2.4... yeah it has more torque so it feels faster off the line but when you mash the gas and run the engine to the red the 2.4 will run out of breath
 

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newbie
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<font face="Verdana, Arial" size="2">Originally posted by Stiletto:
although it is ONLY your opinion you can't just say something like that and not back it up w/ something. i mean if you knew somebody who had prototype parts or spent a lot of $$ to increase the performance aspect of that engine, then that would be acceptable. anyone could say what you say about a lot of engines!

</font>

Dude, I can't believe you just questioned Andreas Miko.

Why not just say Mike K is a fraud.
 

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JordanWhiteMusic.com
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4,699 Posts
<font face="Verdana, Arial" size="2">Originally posted by Andreas Miko:
Thats still my opinion the KA24 motor is a better motor it just does not have the parts backing from the industry.
[This message has been edited by Andreas Miko (edited 09-14-2001).]
</font>
Ughh...truck motor better than the SR20? Yikes. Driven Altimas before and 240's....just don't like the power delivery or the responsiveness, at least in comparison to the SR20.



[This message has been edited by Storm88000 (edited 09-14-2001).]
 
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