Ok, I think this is my first post, i don't remember. i've been lurking around soaking up information for a while and i think i've finally decided what i want to do, but i've got some questions first....

i originally wanted to get an s13 and swap in an sr20, but after driving an s14, i like it better.

i don't want to swap an sr20 in, i just want to turbo charge it... but what should i do before i turbo charge it, because all the s14's i've looked at had 70,000+ miles on them.

also, f-max, nsport, or xs turbo kit?

f-max looks the best so far, but the intercooler is so small...

what do you guys think?

Yes, this is your first post. look under your name and then next to the word "posts:"

If you just plan on turbocharging your KA and plan on running something like 7psi then you should be fine on the stock internals. But just to be on the safe side and if you ever want to raise your boost later on then it would be good to build the motor up before turbocharging it. By building the motor, I'm talking about getting really strong connecting rods, some forged pistons, you will want a new head gasket to help seal and make sure there is no leaking, and you may want some stronger bolts to hold together your engine, check out ARP for those.

Here's some power ratings that you can expect out of some of those kits that you've seen......
Originally posted by NISSANSPDR
Nsport's stage I kit gives you 240RWHP at 7 psi for about 3200 bux.

I would PERSONALLY go w/either F-Max stage II or Nsport stage II...but those will probably run you close to $5k

But w/that you will get 300RWHP+

so you can either go buy a turbo kit for your car or you can go completely custom and piece together a kit of your own, which may be better in the long run but it depends on what you plan on doing with your car.

i know it was my first post NOW, but that "posts: 1" wasn't there before i posted :D

as far as building up the bottom end goes....i thought the KA was good for like 350HP or something? i dont' plan on making that much power without building the bottom end, but would 1.0bar be a problem on stock internals?

i was really asking what i should do before turbo, such as new oil, oil filter, fuel filter, new plugs, wires, ect...also a compression and leak dwn test?

what kind of 1/4 mile times would the nsport stage I kit yield?

one last thing...water injection, what exactly is it and what does it do? is it worth the money on a turbo car?

KA blocks have been known to hold up to 400-450HP...so dont worry your head...BUT if you want to run 14 psi...you might want to consider a rebuild or getting pistons and rods.

With 240 RWHP...you should run low 14's to high 13's. If you are good and have a good launch, good clutch, race slicks...then you should see mid 13's.

What should you do pre turbo kit...full engine tuneup and all that jazz...just get it in perfect running order.

Water injection is used to cool down the air coming in...it's usually sprayed on the intercooler...the cooler the air...the better and more HP you would create. It is worth it...you can make a ghetto rigged one using your windshield washer fluid. I just dont know how personally.

ok, i geuss 240hp at 7psi is OK FOR NOW...

how does this sound...

95 240sx SE
-Kosei K1 Racing wheels, 17"x7.5"(or should i go with 16"?)...these weight around 15 pounds...
-Kuhmo Escata Supra tires...225ZR17 front/rear (or should i go with bigger tires?)
-stock suspension for now, coilovers soon after turbo kit(or maybe before, depends how much $$ i have left...)
-NSPORT stage I turbo kit...
-Apexi GT Spec exhaust (or is that overkill?)
-blitz turbo timer
-possibly water injection, i'm gonna have to research that some more...


later on...upgraded suspension, and if i really get the need for speed...build the bottom end and get a boost controller...

all this ka talk since ive joined this forum has got me thinking of leaving the sr idea and sticking to the ka.

the thing is, my ka is 150k miles on it. hah..now wonder i got it so cheap..( the previous owner lied about its mileage causing me to jump to conclusions and flatout buy the car on the spot)

so whats turbo gonna do to a veteran engine like mine? am i better of getting the sr? (most likely the s14 or s15) or that sweet sounding 400hp turbo?

with 150k miles....you're probly better off with the SR

95 240sx SE
-Kosei K1 Racing wheels, 17"x7.5"(or should i go with 16"?)...these weight around 15 pounds...
-Kuhmo Escata Supra tires...225ZR17 front/rear (or should i go with bigger tires?)
-stock suspension for now, coilovers soon after turbo kit(or maybe before, depends how much $$ i have left...)
-NSPORT stage I turbo kit...
-Apexi GT Spec exhaust (or is that overkill?)
-blitz turbo timer
-possibly water injection, i'm gonna have to research that some more...


The 17's are fine...225 is a good size...you can fit 245's w/the 712's since they run skinny...meaning the 245's look like 235's.

I like the Apex'i GT Spec exhaust....3.74 inch piping all the way. Hehehe...one piece too! Anything 3.0 inches plus is good...for turbo.

i was in the same boat as u. i looked into the Fmax, Nsport, and XS kit. i finally went with the XS kit, due to the fact i got a BAD ASS deal on it. the fmax WAS a good kit, they no longer offer the JWT ECU tho. the N-Sport is a decent kit. im not sure if its designed especially for the s14 or not tho. it also comes witha straight T4 whereas the others come with T3 hybrids. u will probably pull about the same HP with all three kits, something like 230-240hp depending on exhaust and boost level. and whoever said don't go over 7 thats right.....i think the MAX that a KA can handle is like 8, but i wouldn't turn mine up that high. running 6.5 is just fine.

oh this is my first post by the way so hello to all

i havn't been able to find much info on the xs kit...is it intercooled?...what kind of times are you running with it?

also, about the tires and wheels....

i plan on drifting and drag racing... so should i go with 17 or 16(keep in mind they both only weigh about 15 pounds tho...)

and should i stagger tire sizes? like 245 rear 225 front or should i go with 225's all around?

when i get it installed (long ass story) i have been told to expect mid 13's. for drag and drift i recommend the 16's with 255's (if u can fit em) on rear, and about 225's or so on the front. the XS kit IS intercooled, and it comes with EVERYTHING u need, including directions if u feel the need to do it urself. anything else i can help u with?

I dont know...my friend had the XS Engineering kit and didnt like it...sold it for an SR...

Now I know a guy w/the F-Max stage II...he puts down like 320rwhp...now that's nice...and he loves it.

I'd still go w/F-Max or Nsport...XS IMHO...just doesnt cut it.

Originally posted by CSTurbo240
when i get it installed (long ass story) i have been told to expect mid 13's. for drag and drift i recommend the 16's with 255's (if u can fit em) on rear, and about 225's or so on the front. the XS kit IS intercooled, and it comes with EVERYTHING u need, including directions if u feel the need to do it urself. anything else i can help u with?

well i don't plan on getting this car til after winter, because i can drive the blazer this winter(and i don't really wanna get a new car in winter anyway)...so i've got some time to think about it... let me know how the xs does when you get it installed.

i know it's not winter yet, but by the time i have the rest of the money for the car, it will be.

as far as tires go...i've heard 255's will fit...anybody else got an opinion?

Shit in the rear you can fit 285's...if you wanted...but I wouldnt do that unless I had power to burn

i don't think i'll go as much as 285...

but what would be good for some drifting, some drag, POSSIBLY a little autocross, and of course daily driving...if i get that serious about anything in particular i'll just get a different set of wheels and tires for that...but for now i'd rather spend my money on better things (like a turbo kit :D )

i have no idea about tires and what size to run for what...

what's the point of staggering sizes...wouldn't that affect handling(in a negative way)?

I think you should go w/something anywhere from 225-245...but be wary...most 245's wont fit in your front...the Kuhmo ECTSA 712's will b/c they are basically 235's...b/c they rate them skinny...as I said b4.

Staggering is good if you have lots of power and you need lots of tire to get traction...but if you are NA you wont have this problem at all...usually higher HP cars do this...like Supra TT's or 300ZX TT's for instance.

But I think for money saving purposes...you should NOT stagger so you can rotate you tires around.

Thanks, that was exactly what i was looking for.

I think i'll go with 235/45/16(or17..) 712's all around