Should I go thru with it or no

[Thee 240sx Owner]

First i wanna explain that i will be posting this in both the NA Motor and Turbo KA forum... for this question is one of both topics...

I have an 89 240 Fastback... with 260k on the motor... (dash reads in Kilos ) its has a bunch of problems with the motor... IE. Cam is worn... Need new oil pump.. new tensioner for timing.. Timing is retarded 4 degrees (so was the guy who chained the guides).. needs new clutch.. transmission doesn't sound to good.. sounds like a bunch of rocks are rolling around in there.... but everything else on it is running in good condition.. now i don't wanna be like everyone and do the swap... with an SR (short for sorry 20) and i'm not much of a fan of the CA...(weedwacker motor) so i was wondering.. if i should do a rebuild with all forged internals... (cam (ka24e).. pistons...rockers.. springs...etc) and then turbo it... or should i just wait for the motor to die and find a DE motor and turbo it..??? mind you this car never came with AC from the Factory.. so HP is what i want... i believe this car is from canada being that the dash reads in Kilos and its rusted on the bottom of the frame.... and theres no AC... but i want to know what everyones input/opinions on this is.. doesn't matter what you say... i want to make sure i'll be doing the right thing... since there is alot of money at stake.... thanks alot everyone....

[hannibal]

With 260k miles, I think youre better off doing a swap. If the SR isn't good enough for you, look into a RB25 swap. If that doesn't float your boat, then at least drop in a KA24DE and turbo it. With so many miles on the KA24E, Im not even sure you would want to rebuild it.

Jay

[Thee 240sx Owner]

Its in Kilometers.. not Miles.. i need to convert it.. brb....

Edited: its 161k in miles

[hannibal]

Well I know very little about rebuilding a motor. But I know you can pick up a 50k mile KA-DE and transmission for under $500. How much would you pay to rebuild the KA-E?

[Thee 240sx Owner]

what ever it takes.. within reason... i mean if i'm going to rebuild a motor and put stock parts in it.. what would be the point.. so i figure it needs a rebuild.. the motor is strong... and if i went for performance parts.. i might as well do it.. atleast i'll get a performance gain along with the reliablity of it being a new motor again with 0 miles

[hannibal]

IMO its probably easier and cheaper to find a used KA-DE than to rebuild your SOHC with forged parts. By the time you replace the cams, oil pump, and the transmission, I'm almost sure it would be better to pick up a used DE motor. Down the road, if you want more boost or run into problems, you can rebuild the DE (with forged parts) for about the same cost as building the old SOHC.But again, I know very little about rebuilding.

[Pornflakes]

Yep...I'd pick up an old cheap KA24DE from the junkyard or Ebay, then take your sweet time and rebuild/work on it as you like (or as funds come in). When it's ready, drop it in. That's probably the route that is the cheapest (compared to rebuilding your ka24e), least painful, quickest, with the least amount of down time, and highest performing.

[WDRacing]

[QUOTE]Originally posted by RacinDa240sx "] I don't wanna be like everyone and do the swap... with an SR (short for sorry 20) and i'm not much of a fan of the CA...(weedwacker motor)[/QUOTE

ROTFLMFAO....finally, another JDM Hater. Drop that transmission and motor and swap in the newer KA24DE and transmission. When you get that done, email me for turbo stuff.

WD

[gyfer]

Drop that transmission and motor and swap in the newer KA24DE and transmission. When you get that done, email me for turbo stuff.

WD

Good call...

[Thee 240sx Owner]

thanxs everyone.... i'm probably gonna go with buying a DE motor and do all the necessary work to it while i continue to kill my E... and then when its all done.. i'll do the swap.... This is what i'm leaning towards.. this is still an open discussion so everyones input is recomended and wanted.. and thanxs for eveyone whos replied so far...

[gyfer]

Since you going to kill the E anyway, you should try to play with timing, gas, or even nitrous. Just for the fun

Or maybe alcohol, experiment a bit.

[Thee 240sx Owner]

Since you going to kill the E anyway, you should try to play with timing, gas, or even nitrous. Just for the fun

Or maybe alcohol, experiment a bit.

Now.. i was thinking the same thing too.. i was leaning towards the nitrous part.. i'm sure if i sit there and run 25 shot all the time shouldn't do too much harm as long as i don't do 100 shots all day long.. and that'll also give me the feel of using it if i ever put it on the new motor..

[gyfer]

the feel of using it ?

Turbo and Nitrous is different.Turbo is air formNitrouis is liquid form.The feel is never the same.

Hell ? 25 shot ? replace it with bigger injectors, rich the motor out, and use nitrous to return correct A/F ratio.... :P ( is a joke, don't do it. )

p/s: Tips: Our intake manifold is design for "air use". Make sure you don't lean out your end cylinder ( the last one , furthest cylinder away from throtle body) Liquid is much much heavier, and tend to flow all the way to the last cylinder. Nitrous is fun, but without knowing where it goes is scary.

[Thee 240sx Owner]

the feel of using it ?

Turbo and Nitrous is different.Turbo is air formNitrouis is liquid form.The feel is never the same.

.. and that'll also give me the feel of using it if i ever put it on the new motor..

Hence the "If i ever put it on the new motor"

Read it a lil more carefully please.....but i know what you mean and thanxs for the advice as i shall be doing lots of research before i try using nitrous....

[gyfer]

I am saying your new turbo motor, and old nitrous motor will feel different.

I wouldn't recommend running nitrouis in your new motor, before you turbo it.