ka24de differences

[Squidman_'93-240]

i was just wondering if there are any differences between the first gen ka's (89-93) and the newer ka's. im more concerned about the timing chain, i have looked and it seems like the newer ka's have a thicker chain. and i didnt know if nissan maybe fixed the timing chain issue in the newer engines. i searched and couldnt find anything on it, so sorry if there is already athread
Modified by Squidman_'93-240 at 3:58 PM 7/8/2009

[DriftasticS13]

ive been curious of the same as well. so in addition is there any advantages or disadvantages between first gen and sec gen KA's?

[240cp]

Ill contribute, on the s13's have a external coil while on the s14, it is built into the distributor. If your asking if internally they are different. Well shorltly put. No, there are no differences that i know of. As far as ecu i think you can use eprom tuning while on the late 95 and up you can not.

I have a 95 and it has all of it. Consult and obd2. I lucked up and got a early production of the 95's.

[SR24DET]

i was just wondering if there are any differences between the first gen ka's (89-93) and the newer ka's. im more concerned about the timing chain.

Well first off, The earily year KA's were SOHC, so that will make a difference. Later they were all DOHC. If you want to know differences inside the engines there are small ones. Between the S13 and S14 the intake mani's are a little different. The Timeing chains should be the same to my knowledge. The cams are a little different. As far as wiring goes there completely different. One is OBDI while the other is OBDII. If you read around there are small differences in many different places.

[Squidman_'93-240]

okay so basically the 95 and up ka's still have the dreaded timing chain issue? i have a dohc ka, out of a '93 240. and if the newer ka's didnt have the timimg chain issue then i was gonna spring for a new one. but thank you, seems ill stick with building my current one.

[SR24DET]

okay so basically the 95 and up ka's still have the dreaded timing chain issue?

I am wondering what this is? The only timeing chain issue i know of is the timing chain guides.... which have nothing to do with the chain itself. What are you refering to?

[Squidman_'93-240]

thats what i mean. i know nissan made guides that dont f*** up, but i wasnt sure if they installed those on the newer ka's or not.

[TheOne]

91-94 ka's have different valve covers than 95-98, 91-97 have same timing chains, 98 has single row upper chain instead of double row. I don't use the guides at all but nissan did make better guides.

[Squidman_'93-240]

does it effect anything at all? not running guides. is your ka boosted?

[kouki_hmongster]

okay so basically the 95 and up ka's still have the dreaded timing chain issue? i have a dohc ka, out of a '93 240. and if the newer ka's didnt have the timimg chain issue then i was gonna spring for a new one. but thank you, seems ill stick with building my current one.

SOHC starts from 89-90, lower compression(a little better for boost)IF you are talking about the DOHC then it starts from 91-98, there are little differences such as for 96-up is OBD-2 and coil and stuff. (i think it might start from 95 but i heard they little different)Both engine DOHC are good, there isnt really any power difference between the 91-98 engines.

Also for the timing chain issue pretty much most of the DOHC have it, that is nothing to worry about. there is a stickie about how to fix it. all you do is take off the top and right guide. this is what the dealer did to fix the newer DOHC chain rattle.

and i ran w/out the chain w/out any issue. pretty much anyone w/ ka-t do this. if you have a messed up guide it can screw up your motor if it breaks into the engine.

Mostly people cant tune the OBD-2 ecus so what they do is get the OBD-1 ecu and use a conversion harness or adaptor...etc..

lets say if you have a s13 chassis then just use that DOHC motor, if you have a s14 Chassis then use whatever DOHC motor you have. they are pretty much the same such as piston and rod...etc....

just make sure you dont get a FWD ka24de from altima, they are a lot different.

i hope this answer most of your questions(anyone correct me if i'm wrong but this is pretty much good from what i know)

[eazye2000]

I hate to thread jack.

But kouki_hmongster, AIM me sometime. I wanna know how everything came out with that tune I sent you.

EazyE4You

[Squidman_'93-240]

yes thank you very much. looks like ill be sticking with my current ka then.