project n/a 240sx

[ztunelover]

hey guys im starting my 240sx project this summer. im planning light mods to make a n/a 240sx.

for this my plans includes13 248/248camsadjustable cam gearsnistunehks hi-power exhaust300zx fuel filteraem short ram intakenismo lsdelectric fans(thanks pj)IF possible nismo weldina sports catalyzer.

and thats about it. im thinking i would be pushing 150-160whp and something similar for torque in lb ft. i hope my estimates are close if not dont be too hard on me

anyone with any advice, it is very welcome here.

and i know someone will ask me why im not just turboing it. i really want to annoy those honda guys that consantly blab about n/a power.
Modified by ztunelover at 10:28 AM 2/19/2009

[shanelach]

You'll probably make like 135 whp with that. To get a good amount of na power you'd probably be best off going high compression.

[glitched]

Going NA you should really lighten up the drive train to free up what little power you will be making.

[pj]

lose your cat or get a highflow unit, lose your ac, get an electric fan, get a light weight flywheel.add that to your list. it will help with response. you wont have any complaints.

[ztunelover]

i doubt il get rid of the ac. this is still a daily driver, but if theres a slight underdrive pulley for the ac unit im all ears.

as for the cat im thinkin of the nismo weldina unit.

the fans. hmmm im wondering how much the altima fans are. ill probably add that to my list.

and if i have some money leftover, ati super damper crank pulley. its supposed to be lighter than stock and it will help the internals last longer. and i was thinking of removing the abs system altogether and putting in a mazworx cf driveshaft. but i dont know if i can afford that last bit with race school this year. il finalize that bit later.

[hbpignosePA]

u live in canada? do you really need the AC?

im pullin mine when i swap and ill still DD it in the summer months dont be a baby

[White Comet]

i agree. it gets pretty hot here in the summer and my ac is long gone

[ztunelover]

i cant decide that. i sure as hell dont need it now. but ill wait till summer before i decide that

[sebazztard]

only way i would remove my ac is if it was inoperable. i think its pretty stupid to remove a working ac just to save some weight and free up a few hp on a dd. my s14 has working ac and im so thankful for it. emissions removal, i/h/e, cam swap, ecu tune, maybe bigger injectors, walbro fuel pump, z32 maf? i dunno if those last few items will help on a na build but just throwing out ideas. only problem with na build, you will max out pretty early and be left with a slightly faster 240 and out of ideas. good luck with your project.

[RustspecS13]

Your also going to need a header too. And it'll make your car sound better in addition to a few HP. Dont listen to these guys, I dont doubt you'll make 150-160WHP because nobody ever tunes their NA KA. Im buying nistune next for my sohc, because I can start playing with my tune while I fab up my turbo setup.

Definitly get some altima or maxima fans. It was the first mod I did to my sohc since I had maxima parts car and it was cheap easy and freed up some mid range power. And kept my car perfectly cool on drift and autox days.

~Alex

[ztunelover]

next summer im thinking sr 370cc injector. oh yeah i forgot the walbro pump. thx for reminding me. and as for the major power im buying r32 skyline gtr in the summer. thats my big power car. this is my little lightweight funmachine with n/a power.

[KATizzle]

It is possible to make 160hp with some tuning and a cam swap

http://www.ka-t.org/forums/viewtopic.php?t=39839

[ztunelover]

perfect thanks. thats some good stuff. i love how he mangaed to keep the torque band real flat. i guess he doesnt have to wait for vtec to kick in yo

[Stripes]

I have a friend who did pretty much everything you can possibly to do build a naturally aspirated ka, as well as a tune. I'm not even sure if he broke 200whp.Good luck to you. And you might want something a little more than a 248 cam.

[ztunelover]

il see about other stuff later on. im focusing on improving the car generally. so more than just engine work. lightening the car. relocating battery somewhere to the back. just maintain the overall balance of the stock car and improve on it. this is not supposed to be my crazy car

hell all the mods i have planned over these two summers for my 240 is still cheaper than that damn n1 block im ordering from nismo. and ya thats just the block. so you can see where most of my cash is heading to. and i think you can tell which of the two would be the crazy car.

[Ajax]

It is possible to make 160hp with some tuning and a cam swap

http://www.ka-t.org/forums/viewtopic.php?t=39839

I'd be interested to know what octane fuel was used for this. I couldn't tell from the posted thread. Not to be all BS-guy or anything, but I've seen other examples of higher hp NA KAs and they're usually using race gas.

[rob912]

if you want N/A you should go with a ITB setup. with cams and a header you could put down 200 easy there is a thread on zilvia about it.

plus ITB's sound Godly

[ztunelover]

how expensive are itb setups? im not ready to invest in full standalone systems for this car. my r32 is gonna cost me too much. i cant run two expensive buildups simultaneously. im looking for a cheap motor to do mild mods. and practice tuning on. because my rb26 when fully built will cost over 30 grand easy. and then there is chassis and aero prep. that car is gonna be hella expensive. i wont want to start practising on a motor that expensive. so while im scraping together funds to build the rb, and prep the chassis i would be getting great practice on this car.

[rob912]

ITB's= 1k

[Ajax]

Depending on your own fabrication skills, you may be able to piece together your own version- I think there may be some DIY guides floating on NICO somewhere. Paying someone else to build ITBs is gonna cost more than you're willing to spend, I bet.

[ztunelover]

but would i be able to run that through nistune? or do i need a stand alone system? I would look into it if i dont need a crazy ems setup.

[Ajax]

I think (don't quote me) that you can still tune using an MAF/MAS style tuning setup if you also use a plenum on top of the ITBs.

[Ajax]

You might get a better response if this were in the NA KA engine section.

[ztunelover]

Well ya i guess i can do that cant I? thats how the factory rb26dett roll. ur right why didnt i think about that? battery relocation + ITB + custom cai = n/a powaaaaaaaaaaaa. thanks i totally forgot.

You might get a better response if this were in the NA KA engine section.

can you give me a link? thanks

[simmode1]

You're not going to annoy many serious Honda guys in the N/A power debate with such mild mods on a KA. B18's, H22's, K20's and of course f20c/f22c's will still eat your lunch with mild mods.

Consider adding nitrous to the mix.

[RustspecS13]

Also you can make a grounding kit, every one over looks them and they can help the engine run smoother and over all better since the voltage is more stable.

I have a bunch of wire but I keep forgetting to do it...

Also you can do a relay for your coil power, get a direct 12v feed. Its only a small difference but its something. It should help mpg as well.

~Alex

[BMAR240SX]

http://www.importtuner.com/pow....html

[ztunelover]

no i dont have any desire to challenge the ridiculously hardcore guys. they can go crazy with their all motor. im going have a rb26 to take care of them. this is just to annoy those annoying ones that did a stock b16 swap and are all of a sudden the hottest thing around. s2ks il leave alone. after seeing the amuse s2300 gt1 or the asm s2000 i dont have any intention on taking those on. just the random tards that think they are crazy when they are not.

[ztunelover]

im getting a hyper ground system they are giving off a bunch for half price. definitely getting those.

but im never going with anything other than fluid dampers like the ati super damper.

and quick question. does the hotshot headers delete the cat like the dc sports unit?

[simmode1]

Oh. Ok. Have at it. I know its hard since those guys like to rev at everything that moves but, just be sure to keep in off the streets...