whooOOoops! i broke into the 14s...

Information on the naturally-aspirated KA24E and KA24DE engines.
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p00t
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Just went to english town friday night.... 20 dollars ... 5 runs... funfunfun!

Its great to see the mods actually make a difference... Ive gone from 15.8 stock to 15.3 and now 14.8 in the quarter . However, open diff sucks, theres just no other way to put it.

Power Mods:

*Shortened Intake /w K&N filter*B&M Short Shifter*ASP Lightened Crank Pulley*Fidanza Flywheel /w ACT XT p.plate & ACT SS clutch disk*Enjuku Driveshaft*SS-AutoChrome 3" Test Pipe*3" exhaust /w dynomax mufflers (straight through type)*AC removal + electric fan conversion

Misc:

*NGK Iridium Plugs*NGK Plug Wires (blue performance ones... IDK)*Stock open diff*All emmisions removed, stock exhaust manifold with egr and aiv holes welded shut. Smooth 2" -> 3" transition welded into the end of downpipe.*Eibach Prokits /w KYB GR-2's (soom to be rsr springs and konis, cant wait!)*Falken 512's 205/60/15 (not that happy with them weak grip + soft sidewalls )*Subframe spacers*Half-Shafted throttle body*95 KA Upper intake manifold (swirl butterfly removal)*Most important mod: Well maintained car!

With the diff howling(needs to be replaced) its not as fun as it should be to drive around town, but its a blast when you get on it. Wish i had money for cams and a decent header! It was pretty cold out, no one at the track was getting good launches, even the evos there were getting 2+ second 60 '.
Modified by p00t at 5:34 AM 10/23/2004


dubstyles240
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HOT DAMN! The first 14 sec time slip in the NA forums!!! Congrats dude! That makes me really happy, because you basically have the set-up that I have/want, with minimal differences. I want what you have plus header and cams.

I already have AGX struts with tanabe springs. And ran a 15.6 with that as my only mod. Since then I got 225/50 tires, lightweight wheels, and subframe spacers.

basically im just fcking stoked that you cut a SECOND off your time with those mods. I want to go build mine now!!! can you loan me some money?

InsanityInc
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I'm rather surprised it's the first one here lower than 15.0. It's not tough at all to get a 240 putting out similar whp to an ITR. The FR layout will easily make up for the 80ish pound weight difference as well.

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corn322
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Location: Austin, TX

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woo hoo!!!

what did you run against on that slip?

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p00t
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i ran against some camaro with drag radials and more done to it... didnt worry about it though.

By far the funniest race of the night was me vs an SVT COBRA. i spun like crazy with a 2.5 60' and a 15.6 1/4. I look over at his time and he did a 16.01 LMAO. I beat an SVT COBRA!! (with a ****ty driver :P )

By far the best mods for the $$$ were the lightened stuff. It made the car so much funner to drive, engine braking now didnt have to be a careful manuver. Its strange how i always hear drifters talking about engine power, but never about lightened driveline parts! Besides 1st and 2nd acceleration improving, the biggest difference with the lightened parts is once i break traction with the rear wheels the rpms fly up. My car never really wanted to be a drifter, but now its just:

1. turn2. gas3. slide

simple as 1-2-3! even with the open diff

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mackdaddy240
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NICE TIME! I ran a ****ty 16.2 with a freshly built ka24de with 11.1 to one compression, intake, header, no cat, msd digital 6, act clutch. I had some ****ty khumho ecstacy 205/40s though. Spun through 1st and part of 2nd. However after my timing chains slipped I put it back together and it must have been a link off when I raced cause now I have much much better top end and a lil less torque on the bottom end. So I'm hoping for less wheel spin and a lot better time next time I'm at the track... this saturday

Altiman94
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Car: 1989 Nissan 240SX

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U could bring that 60' down to about 2.0 or so you'd have a bangin' run man. Work on the launch. I guess an lsd of some sort woudl work wonder for you

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nismofly
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wow i cant wait to start really digging into my engine in the spring.

hey mackdaddy240 i saw your sig do you have a link to your cardomain site? i dont know if your username there was the same as it is here

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nismofly
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p00t wrote:Just went to english town friday night.... 20 dollars ... 5 runs... funfunfun!
hey i have all sorts of family in that area, used to live up in budd lake, i still go there every summer.

somebody told me they were building a road course next to the track, hows it comin?

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p00t
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i was excited about the road course for the longest time!

however, raceway park built the track without first going through the zoning board. They built it without getting approval and when the inpectors came they deemed it too close to the residential area (noise pollution).

as of right now there is a fully build race track, minus some of the barriers, lights, and stands, that might not see anything more than small cart use, and maybe individual muffled car use (i doubt they will have any hot lapping or track day events).

Pathetic huh?


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nismofly
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o man that sucks, i was looking forward to that too

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mackdaddy240
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Yeah there is a link on the bottom of my post

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glacier985
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90 Nissan 240SX
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nice, I hope I can get my high comp engine running and hit 14's,. My stock SOHC ran a 16.2 and I had a 2.354 60' time so if you can get that down youshould be pretty quick.

Julio Bro!
Posts: 290
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Car: 1993 240SX SE, manual transmission, Stillen intake & strut bar, Magnaflow cat + custom cat-back, NISMO sus

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Hello Mr. p00t:

I need some help with my PAIRC system, can we talk about it?

Check my info and e-mail please.

Thanks.

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nismofly
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mackdaddy240 wrote:Yeah there is a link on the bottom of my post
you mean the picture of youre car? in that case the link doesnt work...

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p00t
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Julio Bro! wrote:Hello Mr. p00t:

I need some help with my PAIRC system, can we talk about it?

Check my info and e-mail please.

Thanks.
I just emailed ya, if you dont get it let me know, or contact me on AIM: NapsterIsBroke

NateDogg
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hey po0t: Congrats on the time! How much did the driveshaft affect acceleration? What is a half-shafted throttle body?

Thanks,Nate

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p00t
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NateDogg wrote:hey po0t: Congrats on the time! How much did the driveshaft affect acceleration? What is a half-shafted throttle body?

Thanks,Nate
Half-Shafting is taking your throttlebody and cutting half the butterfly shaft support out (sounds safe right? ). You do this so that at full WOT there is less area being taken up by the butterfly assembly. At WOT the butterfly and anything else within the throttle body is just a restriction... You also round the edge of the butterfly plate thats facing the incoming air, which helps air pass around it smoothly. People who run V8s pick up 8-10hp with this alone.... however they are pushing 2x the amount of air as we are NA... so only expect 1-4hp at most.... the gains are only at WOT and no where else. This basically is like having a slightly bigger throttle body, without the loss in response. However you are weakening the TB butterfly support, i would be very careful around boost, for this reason i did not completely "half-shaft" the TB, i left some of the front support along the sides. Research first if your going to try it... its easy to mess things up.

Drive shaft helped pretty much everywhere... most knoticable was at partial throttle acceleration in everyday driving.. which i wasnt expecting. 10% throttle accelerated like 15% throttle etc. Gas mileage actually went up too. Im sure this big difference is because of all the other lightened stuff i have....but im sure the driveshaft is responsable for at least 50% of that effect. The effect is felt in ALL gears, making the bigger change in the lower gears of course. It is noisier tho.. and if you screw up a shift expect to get a pleasant jolt... since there is no longer a giant bushing softening sudden changes in speeds between the engine and rear wheels.

everythings a compromise

NateDogg
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Interesting stuff. Did you notice any decrease in driveability with the S14 intake manifold?

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p00t
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NateDogg wrote:Interesting stuff. Did you notice any decrease in driveability with the S14 intake manifold?
Not even a little bit. Its pulled closed by high vacuum, so the only time it would make a difference is under very light throttle and idle...my guess is 10-20% throttle and lower (if its even engaged then). The engine response isnt all that crisp anyway under those conditions, so nothing was felt. The biggest difference it makes is most likely at idle, it swirls the air better for fuel atomization. The effects of that are better gas consumption and emissions, thats about it.

When you remove them your not gonna feel a big jump... maybe a few hp up top, very minimal. Air flows fastest at the center of any tube, your exhaust, your intake runners, anywhere. So all this does is allow that center section of air an uninterupted path.

The strangest drivability related difference has been with the removal of the cat. Everyone's experienced that power dip around 2500rpm right? When i removed the cat theres still a dyno proven dip there, but its much smoother and cant be felt. Maybe my stock cat is just old and clogged? Ive had my exhaust worked on by meineke (yea yea yea ) twice, and they require that you have a cat on the car. Everytime i had work done the cat was on the car for the next day or so... and the dip is DEFINATELY more prevalent with the cat on. This is with the stock exhaust and also with the 3".

My EGR was properly working when removed and no difference was felt.


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