New track time for the 240...

[street_racer_00]

Originally Posted by RedNeck383

Yeah? Well... the clutch in my Camaro is about toast...

So take that... you... asian car driving types...

Them be fightin' words!

[ghostchild316]

I look funny in my car.Picture a gangster lookin mexican rollin a white s13 fb with all kinds of funny noises coming from the car...

[driftking777]

very nice times...im thinking if i wasnt wheel hopping all over the damn place thats about what i would be running...need some subframe spacers

[drftk1d]

Originally Posted by RedNeck383

Yeah? Well... the clutch in my Camaro is about toast...

history repeats itself, eh?

same story as the other z.

[tha_new_guy]

Originally Posted by nissanfanatic

Absolutely. The KA has put down 404whp and 400ft lbs of torque on a unopened(stock internals and even cams) 114,000 mile KA24DE.

Click to see and read about more stock block action:

No SR20 here
No SR20 here
No SR20 here
No SR20 here
No SR20 here<298whp on stock block
Mostly SR20 here, but still some KA rep

The truth is, most of us KA-T guys are still stock block. The two I saw out at the track last night were stock blockers. Even the SOHC has proven itself as a badass engine. Some have went as far as to say the KAs pistons are just as strong as the SRs; the only downside to the KA pistons being they have a higher static compression ratio(9.5:1). The stock rods have held a documented 502whp and then proceeded to bend with the help of boost creep. The total WHP after boost creep was estimated to be about 550whp+.

So yes, the KA is fully capable of handling boost on stock internals. No reason to be hesitant on anything except for your tuning. Keep AF ratios in check and KEEP TIMING IN CHECK!. Timing is the killer these days. It used to be Air/Fuel ratios, but lately, more and more people have hooked up the wideband, ran 11.2:1 AFs, and somehow popped the engien. Hmm. Timing makes power and also destroys engines. You can run a lil lean and walk away. Prolly run for a couple weeks. But timing, that will kill your engine quickly. example

His last engine was an example too. Same deal.

Damned impressive, I always heard that the SR was overbuilt with boost in mind...thing I always liked about the KA was the amount of torque it put out for a 4 cylinder....my friend just got a brand new KA24DE dropped into his 91 240...I know what I'll be telling him.

Good info though, thanks, make me wanna 240!

QUESTION: why do so many 240 owners feel the need to swap to an SR20 then? Those got to be one of the most overpriced swaps out now...especially in the Bay Area.

[drftk1d]

because its JDM.

and anything JDM is therefore cool.

because all of the drift s13's in japan had them.

[nissanfanatic]

^Exactly.

The KA pistons IMO are near as strong as the SRs, but the high CR is what makes them peak out lower. I would put money on them holding just as much as a set of SR pistons if they ran exactly the same CR(including head chamber size).

Both engine's bottom ends are strong as shit.

But I would def like to have an SR. It came turboed from the factory so timing and fuel maps are already set up for boost. And also the cooling configuration is much better. The KA has coolant lines running through the intake manifold.

[TatII]

i forgot who said it on the 240sxforums, but the quote is this

" every othe company swaps in a bigger displacement engine for more performance, american guys swap in bigger v8's, honda guys swap in bigger engines. then why do nissan guys swap in smaller engines to increase performance ?

[ghostchild316]

LOL I've seen that before.


They do it because we all know how much the "KA" sux

or maybe they are scared of torque

[PWRDbyUNCLEbens]

I don't think there is anything wrong with swapping in an sr. If both get the job done it's fine. Each engine just has its own flavor. Unless you swap in an rb then either of the other two flavors suck . Oh yeah, and btw great times sepcially with the open dif.

[nissanfanatic]

Pfft....

Whoever has the know-who and ambition wins. The engine doesn't matter here.

[tha_new_guy]

Ok another question: What is the difference between the KA24E and the KA24 DE? Is one SOHC while the other is DOHC? I always heard the KA24E was a dog of a motor...

[drftk1d]

seriously, the real reason (which is what the original swappers tbelived as well before this jdm craze) is that its easier to start with a factory turbo engine like the sr20 than it is to turbocharge an engine which was designed to be n/a. back in the day (lol) it was probably cheaper to get a swapped sr20 than a turbo ka. i remember when i was looking into getting a s13 the price for a sr20 was about 1200 for a complete redtop engine, which was WAY worth it. but its just dumb now how expensive theyve become.

[nissanfanatic]

^Exactly. The KA requires more than swap and go for 250whp. Simply put, the KA requires higher level mods earlier in your quest for power. The SR, you can make 250whp right off the bat. At that power level on the KA, you should really be running an ECU tune and at least 550cc injectors. But on the KA, you get that stuff out of the way early and select a decent turbo to start with and you are good to 350whp. If you do an engine tune, injectors are the only thing stopping you.

And I remember reading about SR swaps back in the day running like $1000-$1200 for an engine set. Shit I'd do it if it costed that much....lol

[RaidenKing]

Well I got my swap because I really liked the idea of a low mileage high performance motor. All things considered I think I made off pretty well with a very clean chassis, the swap and a few bolt-ons for $7500. I went this route because after my 3kgt threw a rod I began to fear teh high mileage.

Someday, if the sr fails me I will invest in a ka-t with a rebuilt block. I don't remember who posted the video of a bunch of ka-t's tearing ass almost everywhere (think it was tat?) but the video was amazing and made me almost choose the KA-t route.