help me choose engine

[drunkmonkalan]

ok, i wanna swap my ka24 maybe. i was wondering how many tons per year of greenhouse gasses the ca18det emits.

http://www.fueleconomy.gov/feg/noframes/12540.shtml

according to that link, the ka24 emits 8.00 tons/year. im sure the ca emits less than sr, so i was wondering if anyone knew where i could check up on the ca18 engine.

i dont care if i have to pay $200 and illegally smog my car, i just want a cleaner burning car that is still pretty fun. thats just the tree hugger in me =D. if the ca18 emits like above 7.5, im sellingthe s14 and dropping a toyota 4a motor into the 1600 lb triumph spitfire. =D so awesome.

also, would it help if i ran a 2.5 inch exhaust?

[Mr. Badlose]

I'd say keep the KA and tune your suspension, since you can't go for high power and stay clean for the environment.

And don't count your chickens until they're hatched on that CA being cleaner compared to a KA (if you were thinking that)...turbo + higher specific output should mean higher emissions. Example: WRX has 3 catalytic converters to pass emissions.

Then again, you can make stock swaps run pretty clean.

[sr240mike]

Go buy a Honda you treehugger!!!

[180sx purewhite]

Dude why CA18det? Keep the s14 don't sell it, are you crazy! Who cares about the enviroment, run that shit on Methanol or propane your engine will blow up but hey thats good for the enviroment.

[TheTimanator]

Dude why CA18det? Keep the s14 don't sell it, are you crazy! Who cares about the enviroment, run that shit on Methanol or propane your engine will blow up but hey thats good for the enviroment.
.....yeah lets polute for no point at all! :squint:

Anyway, turbocharged and good emissions??? huh? what? haha

[drunkmonkalan]

well, turbochargers dont necessarily have to mean high emissions, if its low boost, right? and i was thinking that since its 1.8liters, it wouldnt be too bad. oh well, i think ill have to think about it for a while until someone can put out some numbers. im going to check that ca18 factory manual in the tech section to see if that will be any help. thx for the input guys.

sr240mike: i might just do that =)

[Dutchmalmiss]

well i have a stock sr swap with just an airfilter. it does about 30 mpg if i keep it below 2500rpm.

[drunkmonkalan]

well i checked the manual, and nothing.
and about the turbochargers making more emissions:

the 2003 mazdaspeed protege (170hp 2L turbo) gives out 7.3 tons per year. this has similar numbers to the ca18. the ka24 gives out 8.00 tons per year. that .7 tons per year makes a hell of a lot of difference, i think. especially since we are talking about gases.
now, i knot that its not right to compare today's technology to that of 1989 or whatever, but hey.... wishful thinking, right?

so if anyone can help me out, please do.

[drunkmonkalan]

http://www.fueleconomy.gov/feg/noframes/18552.shtml

^^info for the mazadaspeed protege, if anyone is interested.

[drunkmonkalan]

sorry to post 3 times in a row... (stupid me)

dutch: that is awesome! that is more than my ka! haha. and my ka has been babied too.... im jealous =D.

[BSeay]

tree huggers...lol!

if you're worried about the pollution you should have bought a honda civic hybrid and not worry about achivieing anything faster then 20 sec 0-60's....

[drunkmonkalan]

thats no fun... remember... we are relatively speaking here, haha.

[drunkmonkalan]

ok ok, can someone at least answer this: if i run 2.5 inches instead of 3 or whatever, will that help? will the backpressure be too much for turbo (i.e.: not adviseable to run daily)? what about 2.25?

i know the ca has to run cleaner than the ka. the ka is so big and pollutes more than some 6 cylinders.

[proj240sx]

im really at a loss for words...

[Mr. Badlose]

You don't know anything until you have the numbers on the CA, now do you? It's just as old as the KA.

When you push more power out of an engine, it pollutes more. And your piping size would be fine, stock 180s don't come with 3 inch piping....

[drunkmonkalan]

badlose: yeah i guess you are right... =\

and i dont know why almost everyone else is taking this so negatively. well i guess next time i try to do something different, ill do it myself. =D

[drunkmonkalan]

ok... i think i found my answer. i am posting this in case anyone in the future has the same question, but the ca18et produces the same as the ka24de. now i think i am right in saying that ca18det will produce a little bit less (i know that ka24e emits more than the ka24de).

so i guess its settles then. the ca18 is going to compliment my suspension setup right now nicely i think.

does anyone know the stock piping size of the 180sx?

haha, i just realised something... a ca18 in an s14.... *gasp* god forbid! that will give everyone ample opportunity to scoff away at my inferiority.

[proj240sx]

mmm..if your so concerned on pollution i would have to say a S14 SR20DET would pollute less than a CA. not to mention "right" for the car. new motors that are bigger and produce more power do not always pollute more than a old smaller motor. think 70's V8 289 versus 00's V8 350, more power, bigger block, less emissions. just an example.

[BoroBoroS13]

A S14 w/ a CA18... Ur nutz. The motor has torque issues below 3K and putting it into a heavier car than a S13 will make you wish you kept the tree killing KA24. BTW, im running a CA18DET in my S13 so I know this issue first hand.

Have you thought about running a SR20DE? If your looking for stats on that motor just look up a B14 Sentra or P11 G20.

[silverside]

with a decent catalytic converter it would run cleaner

[Bryants95240sx]

im not trying to flame or nothing but if your that worried about pollution ride a bike and find a diffrent hobby

[Pudula]

I admire your concern. Seriously.

[drunkmonkalan]

thank you pudula =D.

im already too far into this hobby to quit (2k on my wicked ass suspension setup). if i had known it would be this bad 3 years ago when i got into it, i wouldnt have done it =). but hey, i was 17... cut me slack hehe.

boroboro: yeah... it just hit me as i was in my daydreaming multivariable calc class this evening (god my professor is boring) =DDD. thx alot for the suggestion... ill look into that one too.

proj240: hmm good point. i think my cousin is in japan right now... ill have to bug his lazy ass and see if he can get me some numbers off a manual or something >=D.

[wootwoot]

i'd just get an s15blacktop and be done with it. fmic, and full exhaust with a catalytic converter. the newer the engine is chances are the emissions will be better since standards keep getting more strict. the piping size will not affect your emissions at all so no worries about that. if you want to run clean and still have some pep thats probably your best bet.

[nightwalker]

this is definitely a weird topic. Thumbs up to you for caring for the environment.

btw, did you know that the OCEAN creates 10 time more CO2 (green house gas) than the entire human population (cars too) combined?

[aznpoopy]

this is definitely a weird topic. Thumbs up to you for caring for the environment.


this is by far the weirdest thread i've seen on zilvia yet. when i read the title i expected to see alot of flaming.

[proj240sx]

aznpoopy.....i love your sig :bigok:

on topic...i can add to boro's concern with torque, first time i drove the CA i actually couldnt stop laughing. with work just oem tuning it up the torque has gotten significantly better, but it still leaves something to be desired. especially if your coming from a dohc ka in a s14. top end will be better than the KA, but down low and mid range feel kinda ugh..before i get jumped by all you loyal CA guys, this is my ONE experience with the ONLY CA i have ever seen/installed/driven. so throwing my 2 cents.

[240sxconversion]

if u want a clean running engine look into the rb26, wasnt that the cleanest running car in the Sport compact showdown??

[drunkmonkalan]

nightwalker: wow thats really crazy! im no marine biologist, so i didnt know that. hmm...
but i dont think co2 is what harms the environment... isnt it the cfc's or whatever? im clueless =D.

thanks for all the input everyone. i think i definitely have to think about this one. and if i come along any numbers and such along the way, i will definitely post in case anyone out there is curious.

about the ca18 having no torque: that sounds really bad. but right now, im really liking that sr20de idea.

since you guys are telling me that newer = more emissions restraints= less pollution, i think a good engine would be the s15 one that makes like 160hp. i remember drooling over it like a couple of years ago,but thought it wouldnt be feasible. but, i think i saw a couple on ebay for less than a red top sr swap. plus its got 6 speeds to boot! very nice.

[drunkmonkalan]

hey... on second thought, does anyone know anything about that sr16ve? will it bolt up to rwd sr tranny? im thinking it would.

[Mr. Badlose]

Good God man, you don't want to do that (sr16). And no, it would not work. And there's a good reason nobody does sr20de swaps, because it'd be gay (unless you are rich and do some insane race tune)

[proj240sx]

ahhh now sr16 huh? keep your sights on the s15 sr20de. it will be just like a Q's silvia for you. sr16 in a s14 and you WILL CRY. CA has crappy torque, imagine putting a 1.6 liter in that car. good luck trying to go up a hill.