Boost

What all do you need for internals on the stock ka to be ready for a turbo kit. i kno u need pumps ecu, injectors. bore out the chamber bigger piston heads, new headers, am i forgetting anything? New exhaust, can u figure the boost setting for fuel and air mixture and program it yourself or do u need a shop if a shop isnt around for you to use at your own disposal? Just for reference

you really dont need any of that just to install a turbo kit on your KA. if you want to run some serious boost and rebuild your motor, you might want to consider buying the following parts:

-new forged pistons (probably ones to lower the compression also)
-new rods (eagle H-beam are probably the best on the market right now)
-upgraded valvetrain (i would anyways, i would upgrade the valvetrain just to put stiffer springs to get higher revs)
-a set of mild cams for street use (JWT probably makes the some of the best)
-ARP bolts and studs but sometimes they are included in the eagle rod kits

then when your done purchasing all that, take everything to a machine shop. have them balance the crank, hone the cylinder walls, and then install all the new parts. you will have a brand new KA that could handle anything well past 600hp. i probably forgot a few things. and that is JUST the motor part. you would also want many of other miscallaneous perormance parts to make that system work. BUT....that is just what i would do if i wanted to break into the motor....


you dont need headers beings the exhaust manifold should be included in the kit. you dont need to bore out your motor. you dont NEED a new exhuast. if you are really handy with electronics and you have the computer skills and hardware to burn your own chips then you can make your own performance ECU but i would leave that to the professionals. you will probably want to get some new injectors. pumps...which pumps???

well if your goin to make around 300whp or ( around 350 crank hp )

the stock block with really good fuel managment is more then enough.

if you want to run high boost, and make around 450 crank hp. you pretty much just need to change the pistons to forged lower compression units, and you dont' even need to change the rods, since the rods are forged from the factory. most people making just under 400whp usually just harden their factory rods by shot peening them. this is only a fraction of the price of upgrades rods.

you also will need new head studs, and new rod bolts, along with a new metal headgasket. and have your rotating assembly rebalanced.

all this should cost around 2500 bucks including parts and labor. not a bad deal considering that your gettin a brand new engine.

the cost of a swap will be 4000 average. and in order to break 250whp on a SR20DET, you need to change the turbo, the injectors, the mass air flow meter, and need some kind of piggy back to tune the thing, and dyno tuning time. this alone will be another 2000 bucks on top of the 4000 bucks.

for the KA with good fuel you can hit around 250-280whp and your turbo that comes with the turbo kit is usually good for over 400hp. so you don't need to upgrade the turbo or manifold, etc. you just need internals and fuel along with mass air flow meter, and tuning again.

both in the end cost about the same. but 2 very different approaches to get the similar results. but the parts list i just showed you for the SR shows you that its not as easy to get power out of a SR either. the stock turbo and injectors and mass air flow meter is the biggest limiting factor to making over 250whp.

and you dont' even need to change the rods, since the rods are forged from the factory. most people making just under 400whp usually just harden their factory rods by shot peening them. this is only a fraction of the price of upgrades rods.


yeah, your right. you really dont need anything but a set of ARP's and some new pistons but i was saying, while you got that block apart. i would go ahead and change a few other things. and yes nissan used some of the strongest rods to come in a stock block but for an extra $350 or so, ill take the significantly lighter rods. less weight moving equals less stress on pieces holding it everything together.

thnx for the engine tips guyz its apreciated you dont kno how much hahah. will i need like a new tranny and flywheel and other things needed to put teh engine hp to the wheels? clutch shifter etc. and also like fuel pumps and water pumps(yur question mentioned aboe)

also for the turbo kit im going to put on there is there guna b a HUGE price diff between a single turbo kti and the twin. i like the twin idea better bcuz its giving you boosted acceleation through all gears as in the opposite one turbo itll either give you more accel in higher rpm w/ a bigger turbo and speed range or a smaller turbo give you better line off the gun accel?ty

yeah with huge amounts of power you are gonna need a upgraded fuel pump and clutch. fuel pump, i have heard you can yank off of a 300zxTT will support well up to 600hp or you can buy an aftermarket walbro or something. clutch, with huge amounts of power you will probably need one of the stiffer clutches you can get. i dont know how the transmission will hold up to the power but i cant imagine it failing if you are smart about what you do.

i dont know about the TT idea....i think it would be a lot easier and more practical to just buy a smaller turbo. with technology these days, you can easily get a small turbo to push out some serious power.

IMPORTBLOOM, please change your damn sig, ive asked like 3 times, just change the thing, its fucken long and makes you have to scroll all over the place to read shit...

uhhh, no. bcuz you could have asked like a lil nicer then that and you dont have to coem into my thread and post sumthign that has nothing to do with it so deal with it

ok thnx to all who gave info

me and d-bo asked before....I have asked nicely, this was the first time i even had a bit of attitude, WTF IS YOUR PROBLEM!! why do you want to piss people off with having a huge sig that just makes them mad? just size it down or use the one you have in your avatar as you sig...pretty simple....and why would i post info in your thread when i know this is BS since your only 15 and you have the idea you are going to turbo a KA when you dont have a 240 yet....goodluck, its easier said then done..yes i remember your thread where you think your going to get a 300hp 240 and you havent got your license yet...thats why i wouldnt post in a BS thread to waste time....

sorry for any flaming, im not really an ass and will always be nice to you in the future like i have been in the past, but dont say shit like deal with it when im not the only one who wants you to change it...

:2cents:

Check your compression. But you will need to know what you are doing. You need to know how to select the proper turbocharger or you won't like it.
www.boostdesigns.com is your best bet for a budget minded enthusiast.
www.phatka-t.com has some stuff as well along with a bad-ass owner. He has some pretty amazing cars in his garage along with a S14 KA-T drag car in the works. At anything below 7psi, a FMU will do the job. 8:1 is a good choice. You will also need a intercooler if you go above 6psi. Its a good idea for any FI application. You'll need a wide-band if you want to tune it yourself. With any amount of usable boost on a KA, you're gonna need a LSD. Wheelspin becomes a huge problem. And if you size the turbocharger correctly, lag will not be noticable. Mine spools at 35-4000 and I don't notice any lag. Besides that, you don't want to be boosting all the time. The idea behind my kit and indeed turbochargers in general is the fact that you get boost when you want it unlike superchargers.

And for the love of god:
CHANGE YOUR DAMN SIGNATURE!
This is a public forum and you're infringing on everybody elses' ease of reading posts. Just be a nice guy and take it down to six uber-TIEYET JDM drift pics.

wtf am i the only one where his sig doesnt effect me??? its not to big its the same as all the other sigs. All yall's comps are boon maybe??? And they covered pretty much everything you should do.

damn you guys are dicks wow, jsut cuz im fifteen doesnt mean i cant get to kno what i want to do and stop trying to use that too make yourself seem smart i didnt do anything to you so just settle down damn flip total shyt and it pisses me off when yur like im only fifteen and i want 300hp did u read the rest i said its goign to be a 3 year project car smokes, shyt just cuz you think you kno everything doesnt give u the goahead and try to down uther people posts damn, how would u like it if i went into your posts and started flamin it, thats what i thought,nowvjust kewl the f*ck out and ill change it. mayb i didnt see sum of them ok?( so ill change it if you remove your head from your a$$) :biggrin: ok are we kewl now just had to let out sum anger my bad( i got nuthing against ne one in here and i dont wana start shyt cuz u kno that saying, argueing on the internet is like competing in the special olympics even if u win, your still retarded) :)

Nissanfanatic if yur eightteen then 3 years ago you were fifteen damn and yur acting like that man. I bet when you were fifteen you didnt wana catch shyt from people am i right? thought so, so jeez im just trying to research and talk cars with people. so if u dont have sumthing on topic then dont post or if u have sumthing thats sumwhat related go ahead i wont jsut go into your posts and start talking like that-

thx for the removel (that was all i had asked for, not a war lol) and good luck with the turbo of the KA, i would listen to nissanfanatic, he has also helped me out with stuff before and he really knows his shit though..

oh, and to answer part of your first posted question, i wouldnt waste money on headers if your going to turbo your car. Just keep the manifold cuz you'll have to buy a new one when you go turbo..

alright thnx man sorry bout that i freak out sumtimes i dont wana "start a war" either lol. Ok thnx for the tips and everything hope to talk to ou again bout stuff(its just that ive been in alot of forums whre people judge me on my age ad i would think i kno alot for how old i am and what not but it just makes me angry so good luck and ill tlak to you lats) srry nissan no problems wanted

Nissanfanatic if yur eightteen then 3 years ago you were fifteen damn and yur acting like that man. I bet when you were fifteen you didnt wana catch shyt from people am i right? thought so, so jeez im just trying to research and talk cars with people. so if u dont have sumthing on topic then dont post or if u have sumthing thats sumwhat related go ahead i wont jsut go into your posts and start talking like that-

I probably would have just changed it. Especially if a bunch of people who have been on here a while asked me too. I don't recall anybody giving you any shit about wanting a faster car. The only thing I saw you getting shit about was the sig. Admit it, you hated scrolling to the right too. I hate the shit out of it especially after waiting for the page to load with my slow ass(21600 bps)dial up. No harm done. I respect the fact that you apologized. It takes integrity to do that. I wish I would have joined a few forums when I was 15. I've only been on here ten months and have learned shitloads. Stay here and join a few more and you'll be suprised how your views change by the time you get a car. Good luck. Always happy to help.:thumbsup:

hhah alright we are kewl ad that is kewl

i have cable modem and i have that scroll wheel on my mouse. it doesn't bother me at all.

BROADBAND CONNECTION AND SCROLL WHEEL ON MOUSE OWNZ YOU!!

no, we didnt mean scrolling up and down, we ment his sig was like 60' wide!!!, if it was tall we wouldnt care..its over guys, lets just drop it though...everyone cool so its all good... :bananasmi

LOL:)

::rips phone cable out of the wall::

I hate dial up. No vids, no sound clips, no nothing. I have to wait for smilies to load!!!!!11

21600bps?!?!?! that is hurting real bad...i feel sorry for you. :D

i have the scroll thingy in my mouse and cable modem and a 17" screen and i still had to scroll the right. i dont like to have to keep scrolling left and right, but its fixed now...good job importbloom!!!

back on topic. dont go with a TT set-up. there is a reason why inline guys go single when their car comes stock with twin turbos...i have talked to guys putting up huge HP numbers with their 1.8L engines and still spool at 2500 RPMs. use technology to your advantage...

alright thnx man, i was just wondering becuz i read that if give u acceleration throughout all gears but yea ill use technology liek u said alright kewl thnx this thread will be open if i get ne more qestions or anything

yeah, i think its kinda pointless to TT a 4cyl cuz of the fact there isnt enough power to really spool both, like 2cyl per turbo would not be that great..But if you got a RB than a TT would be cool. I would just stick to finding the perfect size turbo for your engine and what your goal is for power (low end, or higher spool for more power)

I believe there is a guy on NICO trying to TT the KA. The fact that there is plenty of turbos perfectly sized for the KA already makes it not worth it. Not to mention the level of customization that would be required. Making a manifold isn't as easy as you would think. If you don't have the right equipment and materials for the manifold, it will crack and literally fall apart. On an inline engine, twins aren't really necessary. Only advantage being quicker spool times, I would take one large turbo over two smalls anyday. Sizing gets a little more difficult too. You have to understand how two turbochargers work together as well. Just stick with the single.

well actually the smartest way to go about a TT set-up on a inline car would be to stick 1 small turbo in front of a larger turbo, causing the smaller turbo to spool at low RPMs and then, essentially the smaller turbo will spool the bigger more powerful turbo, which will give you bigger HP number but not sacrificing practicality. but getting this system to work well and getting all components to work together seems difficult. almost like car engineer material...:D

i think theres more to that when running 2 turbos in series. you there needs to be valves, and vacuum actuation. much like the system found on a RX-7 TT, or Supra TT. its the same size turbo though, but one just spools the other. but overall, if your gonna go with twin, two turbos running in parallel is better. much like on the GT-R or the twin turbo Z's.

A lot of people with GT-Rs and Supras convert to one large turbo. I believe one large turbo is more efficient than two small ones.

i think theres more to that when running 2 turbos in series. you there needs to be valves, and vacuum actuation. much like the system found on a RX-7 TT, or Supra TT. its the same size turbo though, but one just spools the other. but overall, if your gonna go with twin, two turbos running in parallel is better. much like on the GT-R or the twin turbo Z's.

yeah i know there is alot to an in-series twin turbo set-up thats why i was stating it was difficult...left for car engineers. i was just breaking down the idea. but IMO, i think it would be the better way to go. i have read a couple articles of 2JZ owners doing different sized turbos inline.

It seems like too much work for an inline 4 when there are readily available parts for a single turbo setup. You also have to consider fitting two turbos in a 240s engine bay. I don't see a whole lot of extra room in my engine bay. Good idea though, just the wrong car/engine.:thumbsup:

oh i know...i suggested the single turbo kit also...it is ideal. i was just saying the only way i could see a TT kit on a 4 cylinder is inline. :D

BTW: there is always enough room...you just might need to make some sacrifices. like maybe a a little roof scoop right there, that would help cool it down also. :evillol:

hmm, well my turboing is going to depend on money bcuz im lookin at gas,maintnence and just the internals, rims and tires, interior, sound is all going o be factored. i want sumthign that is fast but also sumthing that looks awesome so its all in due time :)

dang import, i love that sig....but it is still huge. Can you downsize it for us? im doing the scrolling all over again.....

lol sorry i cant get it right but if i cant make it smaller ill get rid of it srry again

BETTER? if it isnt its kewl man but just let me kno

just use something thats smaller, like your avatar or whatever

u ccant tell me u dont like looking at that and its not as long as the uther one :) but ill just see how it werks for now and if theres more complaints on the side scrolling im remove it immediately srry

no that one is cool with me lol, i where you getting these paris hilton ones?

lol hit n run...y you want to know huh? huh? lol i dont blame ya man she's damn hot god damn it....i thought this was the only place i could go to get away from girls and talk with the guys but damn i guess not. Crack a beer and we got a party lol.

ive looked into the ka's turbo abillity and have to say that jwt has the nicest custom set-ups like a reprogrammed ecu set to read a maf sensor out of a cobra mustang and custom done fuel rails so look around the net before you go with stupid ass prefab kits that are very simple mindded or expensive i bought a t70 from a friend got it re-built and pieced a kit together giving me 433 on the dyno at 2.0 bar of boost with pump gas less than 8,000 after arc front mount and importted j-up cat-back exhaust so do the research before you get into a lame kit not that there all lame but the greddy kit isnt even ball bearing c'mon

yeah i think putting your own kit together is alot better and cheaper, but it does take alot more skill and brains...

alright kewl thnks for the info thats sumthing iw as thinkin bout piecing my own turbo 2gether actually