All motor 240 ideas.

[KA240SX808]

True, that little 60mm G60 MAF is just crap for making power lol, and the Mani I wanna say flows pretty good because I see alot of KA-T guys using it so it must be making some power. I'm not sure I get what your quite saying here, "Seing as 10.5 to 1 is higher compression than what he's got" he's running the 10.5:1 C/R pistons just not the 90.5mm bore, he's got the 89.5mm bore. Also the HG is .5mm Bigger then his bore (90mm) so that drops his C/R ~.15 ish maybe .2 which I stil dont think is a big diff. And yeah VP Racing Fuels came out w/ an Import 116 octance Fuel to replace the C16 because of high cost and they made IIRC an 132 whp Increase on an SR20DET set-up, so I'm pretty sure that could spell atleast 50 N/A whp.

D-Sport mag did the article:

http://www.dragsport.com/issue/2008/0408_tech.shtml

[KA240SX808]

Originally Posted by jspecusa

4.6 is the highest you can get, order it from nissan motor sport/westco justin.
I had the 4.6 on a s13 with sr20de, it was fun shifting but gets tiring after awhile.
good luck,

sam

Do they still make 4.6? he Highest one I know of is there 4.463 FD, and how was the mpg w/ that 4.6 must have been harsh but hella fun to drive.

[johngriff]

Front transfer case of the Xterra is where you will find them used.

[Matej]

All these cars are running about 300hp n/a KA24E's I believe.

[mugendork]

thats all I have to say...

[KA240SX808]

Originally Posted by johngriff

Front transfer case of the Xterra is where you will find them used.

Ah, I see

an yes GT3 KA24E's = Teh Sex, also hitting 8500rpm also

[steve shadows]

Originally Posted by johngriff

Because I would swap an S2000 Engine into a S13 before building a KA.

Thats why.

Greasers car is Totally radical. But, he spent money on his KA build. It wasn't cheap. ITB's and a standalone? No, not cheapening out at all.

Its just after that much money, I would rather just put an S2000 engine in.

John doesnt mean that he is just trying to drive you guys nuts.

KA24DE with cams + AEM + Headers + Exhaust/ Intake will make more usable power and torque than an S2000 engine, in fact stock for stock on a road course if you know what you are doing straigh line is almost the same.



ps. The 300 HP NA KAs are rated as Brake output, so they are more like 250whp, and they run on 110 or alchohal only.

Compression ratio is sky high.

About the highest you can get in a street car is aroun 180-200whp. Even Greaser has to run 100 octane or higher all the time

or his setup pings like crazy.

[YaItsGotAHemi]

well like i said a mid 13 second time will be fun for me. i just want a rwd car to drive and to look nice. My neon is the drag/corner car. on street tires it will hit some 12's and look bone stock... all the way down to the exhuast. the 240 is about the style and i wouldn't mind playing around with drifting. nothing serious cause nothing like that is around wichita, ks.

My setup for now will hopefully be like this:
4.6 gears if i can find them
1.5 or 2 way diff
cam
intake
header back exhaust and a computer tune.

If i feel like that wont cut it i will go with a factory rb20 swap and be good.

[s14_legend]

n/a route is a good way to go thats the route im taking at the moment

[morbid]

Are there any Nissan 4bangers that make good power NA with just bolt ons? What about V/I-6's besides the VQ35? I'm kind of jealous of honda owners when it comes to bolt on N/A power. Those k20's can make ~210 - 230 easily.

[KA-T_240]

I am running .60 over high compression pistons. They may be SOHC, not sure, no part numbers on them. semi-ported head and intake manifold. AEM intake and a hotshot Header on my DD. Got all the parts for pretty much free or close to. Not looking for major power, not high performance tunes....... retarted timing and all that. If i lived closer to a dyno I would probably mess with tuning it more.

[Matej]

Originally Posted by YaItsGotAHemi

the 240 is about the style and i wouldn't mind playing around with drifting. nothing serious cause nothing like that is around wichita, ks.

[dragon_x330]

ITB's and Brian Crowers Fully Counterweighted Crankshaft are gonna be your new best buddies for a ka24de n/a build.

Although they are also uber expensive.

[allmotorKA]

Originally Posted by johngriff

Front transfer case of the Xterra is where you will find them used.

And to add to that, the 2004 Xterra had the 4.9 R&P.

[eclipse_dsm]

I'm actually starting to rebuild my S13 KA24DE for Hi-Comp setup. I'm looking into KA24E SOHC Pistons, Clevite rings on Main,Rod,Piston. Might keep the bolts but definitety Cometicl HG. And move my ZEX Wet kit for 55hp. I'm also considering an ITB's but the EMS conversion involve is what's holdin me back. Beside I'm still collecting parts. GL.!!

[cgtdream]

Dont forget to do your research/math on possible cam combo's....from experiance, i know you can eek out more power by what cams you decide to settle on....and dont fall for the advertised cam profiles on sites as a base....call up a camshaft shop, and talk to them, get to know them, because they can point you in the right direction...and yes i agree, with the statement that the KA can possibly make much more power than 200hp...then again, im not gonna be the one to prove it...

[steve shadows]

Jim Wolf is a good person to talk to about NA Nissan stuff

[KA240SX808]

Originally Posted by dragon_x330

ITB's and Brian Crowers Fully Counterweighted Crankshaft are gonna be your new best buddies for a ka24de n/a build.

Although they are also uber expensive.

Arent those Cranks 102mm Stroke or do they have stock stroke Ful--CW cranks? I mean tha KA's got high Piston speeds already and I dont think the 102mm stroke would help. I mean those GT3 KA24E's use the Stock 1/2 Counter weighted cranks but there are a few mods they do to it to help keep them together at 8500rpm's. I would like to try the Xcessive GSX-R ITB Intake mani but CA FTL

[Matej]

Do KA ITB's still have to be custom made, or does anyone sell them now?

[racepar1]

The 4.6 and 4.9 ring and pinion sets from the front diff of the x-terra are bolt-in? Is there any specifics that I should know? Like only certain years will work or you need to use different bearings? I wanna get on that ASAP as shorter gears will help me A LOT at the track. I just wanna remind all of you that think the 300bhp GT-3 KA's are impressive that they are somewhat restricted. The throttlebody/carburator bore size is restricted, the bore is restricted, and the stroke is restricted. If those guys were let loose the engines would make at least 50 more HP.

[KA240SX808]

Yes, those things are just ridiculous

Also the only ppl that make an ITB Mani for you is Xcessive, you send them a set of GSXR ITBs and your intake that this is what you get:

[imperial562]

this is sad... you guys expect to low from a KA motor.
If any of u guys know abot these Honda Motors, then you know how much further we can take a NA KA.

[bo2o]

wouldnt you want a shorter gear? so you can smash thru your gears reallie quick

with a NA build i would start about by sending the block and head to machien shop.

get 90mm bore pistons h beam rods or cyro treat your stock
90 mm with 11 or 12 to 1. then square port with port, and polish and get new valve train new head studs nismo cam, and get a 5 angle valve job.
custom intake mani or port match your stock and put q45 tb.
jack knife your crank new crank pulley i think ati one would b good. hotshot headers 555cc injectors kould be found on rx7 not shure what they have exactly but there pretty high fpr and walbro.
ecu tuning. or emanage. wideband o2
that should be what your looking for should be good up to 200 whp

ive heard on a fresh block with juss mods to the head can get your 180hp.

[racepar1]

Originally Posted by Nismo240R

Yes, those things are just ridiculous

Also the only ppl that make an ITB Mani for you is Xcessive, you send them a set of GSXR ITBs and your intake that this is what you get:

Nice! What is the bore size of the gsxr throttlebodies though? I'm not convinced that it is big enough to really support 2.4 litres of displacement. After all they were designed for 1000cc motors, that's less than 1/2 the displacement.

EDIT: I did a quick calculation and the numbers I came up with make me more suspicious.

2400cc x 7500rpm is 18million cc/min
1000cc x 15,000rpm is only 15million cc/min

According to those numbers the bore size of the gsxr throttlebodie is almost certainly not quite sufficient to support 2.4 litres of displacement. I don't know the redline of the gsxr off of the top of my head though so if it's higher than 15,000 rpm's then the numbers will get closer. Basically these numbers are just to compare approximately the maximim airflow that the throttlebodies were designed for to the maximum airflow needed for the extra displacement. These are just a tool to compare, not actual real numbers.

[KA240SX808]

I believe the GSXR-1000 02'+ ITB Dia. is ~42.5mm IIRC, I'm sure you can get someone to bore them out to 44mm.

I did some research and it seems the 98-99 GSX-R750 ITB's would be more Ideal w/ the Butterfly dia at 46mm

[KA240SX808]

Originally Posted by imperial562

this is sad... you guys expect to low from a KA motor.
If any of u guys know abot these Honda Motors, then you know how much further we can take a NA KA.

Yeah but look at the Honda's VE compared to ours, there in the very High 80's low 90's, were probably in the low 70's. I mean they can run 11:1 C/R and still be on pump gas before pinging, w/ 10.5:1 KA's have to actually watch them selves before they start pinging. So I dont think our motors should be compared to an Honda one atleast. I might be missing the point here but thats what I'm seeing. D-Series SOHC FTW

[KA240SX808]

Originally Posted by bo2o

wouldnt you want a shorter gear? so you can smash thru your gears reallie quick

Yes that's why we Opt for the Nismo 4.364, Xterra 4.6 & 4.9

[KA240SX808]

Originally Posted by Nismo240R

I believe the GSXR-1000 02'+ ITB Dia. is ~42.5mm IIRC, I'm sure you can get someone to bore them out to 44mm.

I did some research and it seems the 98-99 GSX-R750 ITB's would be more Ideal w/ the Butterfly dia at 46mm

Our intake runners are ~44mm: So I think the 98-99 750 ITBs are more then enough

[jim1234664]

Originally Posted by racepar1

But the built KA would cost around the same amount of money as swapping in the stock s2k motor and the KA would have way more torque and most likely more horsepower too. I think Carrol Shelby said it best "horsepower sells cars, torque wins races". That is the 100% TRUTH right there. The s2k motor would rev better and have a better top end, but the brute force torque of the KA would rocket the car off the corners.

uhh but the stock f20c would actually be reliable....

[Matej]

How reliable are built n/a motors?
If we were to compare a crazy built KA vs. a mild KA-T, which one would be most likely to blow first if they're both driven hard?