Fastest 1/4 time?

[biggee247]

What is the fastest 1/4 time heard for a stock ka24de engine on a 240? I was able to run a 15.4 in my 240 stock. What would happen if i put exhaust, intake, header? How much hp would that give me and how much of a better 1/4 time? Thanks to everyone that responds.

[Cookdaddy]

A 15.4 is pretty fast for a stock s13. Stock they should run around low 16's to high 15's. I/H/E would probably give you 5-8 hp at the wheels, not much, but I think it would lower your 1/4 mile times 1 or 2 tenth's of a second. As for the fastest 1/4 times, I have no idea. Try searching for it and you might find something, I've seen numerous 1/4 time threads in the past. By the way, do you have a hatch or a coupe? Just curious.

[biggee247]

Hatch.

[biggee247]

What would be the best way to go to get in mid to high 4's w/out having a turbo or supercharger or ne thing like that?

[crzycav86]

nitrous...

[:: orion ::]

Buy a Mustang...hehe.

I know of only 1 S-chassis car that has run a 'verified' 14-second time in N/A tune...that was with ~165rwhp in a base model S14.

With drastic weight reduction, and a full list of bolt-ons, you could hit high 14s...but I have yet to see it.

Let us know if you do.

- Brian

[Cookdaddy]

Intake, header, full exhaust, pulleys, electric fan, port/polish, cams, plugs/wires, and some weight reduction MIGHT get you into the high 14's. But yeah, crzycav86 is right, nitrous is the easy way to go if you want to break into a 14 second 1/4. Im pretty sure the KA can take a 50 shot no problem on stock fuel and internals.

[InsanityInc]

6-8whp for I/H/E?

I've seen 6.4 or some such dynoed for just an AEM intake, and about 13 gained on a dyno for just a 3" exhaust. Yes, even for N/A you should be using a 3" exhaust on a KA, there are dynos out there that prove there are no losses.

If you got a hotshot header, catco 3" converter, a 3" catback and an intake, you should make it into high 14's easy.

[InsanityInc]

oh, and I figure everyone's probably going to call me a liar, so let me try to drum up some links.

heres a dyno of an AEM intake.

A gain of 4whp with just a 2.5" random tech converter, so expect 4 or 5 from the catco one.

I can't seem to find the 3" exhaust one right now.

hotshot header dynos I've seen vary from 5-10 whp. Probably dependent on which model they were using (the old ones were worse)

[biggee247]

so that's gonna run me at about 700 - 1k to get into the high 14's if not, like 15.1

[corn322]

yep.

fast, N/A, cheap. pick any 2.

[InsanityInc]

gaining 20+ whp should lower your time by more than .3s.

[klattr1]

my buddy with a 91 s13 ka24de ran a 14.9 in the quarter (he had mods like MSD, adv. timing, 3" catback, and shorter final ratio)he also ran a 13.9 in the quarter with a 75 shot.

[biggee247]

so basically for about 700 bucks i can get into the fourteens

[240convertedme41]

Bigges247.. ur still stock?? so is ur car an se? or base?? I have a base model 91 fastback. Intake and exhaust and 300zx fuel filter and i was running with mustang gts.. granted it was a convertible but it wasnt stock. we were dead even all the way till forth when we had to pull back for traffic. I also stayed with a new porsche boxer.. and got edged out by another 240sx with an sr20det @ 7psi with some mods as well. I think it has alot to do with the right setup and of course the driver. My motor drain plug fell out so im saving money for a rebuild. But im not convinced that all-motor is slow like all these people out there say. And alot of them try to do all motor in a heavy car, like an s14 se.. lol funny.. but i have to agree with u.. my car ran something similiar to urs stock. too bad i didnt get to the track. ill keep you posted. i should be back and better by halloween.

[biggee247]

Yes im still stock, its an SE not base, and it's fastback, and yeah i hung w/a Mustang GT, w/exhaust and intake, til about 60 mph and then he started to pull, and i hung w/stock v8 camaros and shiat, and i beat 305s all day. And im a damn good driver, im not one of those kids that just say they are, i really am. I learned from the best. but yeah, ill get a 300zx fuel filter, and exhaust and intake basically and see how it runs.

[Florida240sx]

Guy just bought a 93 hatch leather 5spd with 97k on it. He put intake and nos in it. Think it was a 75shot he used and he ran a 14.1. It still had factory rims to my knowledge. Couple days fter my dad telling me I saw the guy cruising around and still had the factory rims on. From my races I've had I have smoked people that run mid-low 16's. And lost to dodge stealth that ran 15.3. Was pretty close but was a bad race for both of us(horrible street to attemp to race on. .Don't know what I run but maybe I can talk my dad into leting me go to Orlando to drag now.

[InsanityInc]

If you're hanging with the new mustang GTs or a fairly new Z28 or an SS, then they're doing something wrong, unless you have substantial modifications. Even an SR 240 stock would be about even with a GT, and still would get owned hard by a Z28 or SS. Chances are the cars you thought you were racing weren't actually racing you, especially the camaros.

Also, an s14 is only 100 pounds heavier than an s13. Makes a difference in stock times by a fair amount, though.

Oh, and just so you know, an s13 convertible is actually heavier than an s14, and with a convertible, you definitely weren't beating GT's and Z28's. Not a chance in hell.

[dubstyles240]

why does everybody think that a 300zx fuel filter is a HP mod? show me a dyno that shows gains from that.

also, the driver of the US's fastest eclipse (brent rau) told me that 100 lbs. = .10 second in the quarter. He said it was a rough estimate, but it comes to about that.

and running a 15.4 stock is nice! intake exhaust header cat pully and e. fan should put you into the 14s. throw a cam in there too, just for added effect

[corn322]

well, if you have an old clogged fuel filter that can't flow enough fuel at high rpm's, you'll loose power 'cause you don't get enough fuel. upgrading to a new one will get you your power back.

and a 300 fuel filter will last longer too.

it's not really a power mod, but most of our cars need it anyway.

[240convertedme41]

lol yea.. my fuel filter was clogged bad.. fuel would barely come out of one side when i flipped it. So i dont know if its a bad fuel filter or the 300zx one is a better flowing unit.. either way i felt a difference

[GEO]

This thread should be closed for retartness. No WAY in ****ING HELL you are beating 350z's and GT's with those 3 simple bolt ons.. unlesss their drivers are on legged drivers.. come on guys.

[frapjap]

Thank God somebody has some sense! Those cars are faster stock than any few bolt ons that we can attach to out motor. Maybe, just maybe it was a v6 camaro you were racing. I can forsee that. But wnning against a 305 (third generation) is a toughie. Driving properly, I could see you hanging with them, but pulling and winning....thats a tough call. Now if this was a 4th gen Camaro (the sleek lines and such) we're talking about, theres no way our moded 240 can pull on them. Off the line, possibly, the whole 1/4 nope. We haven't a chance in hell unless you've got DET.

[AZhitman]

Also, an s14 is only 100 pounds heavier than an s13. Makes a difference in stock times by a fair amount, though.

Oh, and just so you know, an s13 convertible is actually heavier than an s14

Enough enough ENOUGH!

So much misinformation (and missing variables). I won't even get started on your wrong numbers on the 'vert...

If you're basing your argument on dyno runs published by manufacurers, you're gonna be disappointed.

I have tested 10+ catbacks on stock KA's, and NONE produced more than 10 hp. Period. End of argument.

Straight pipes? 9 hp on average.

There's NO cat con that will net you 4-6 rwhp. Absurd. REMOVING the cat rarely even shows up on the dyno.

Just so you know, when you dyno, you have to do SEVERAL and look at the most frequently occurring results, NOT the highest result.

3" exhaust on a n/a KA is ignorant. Sure your peak hp increases, but look at the torque curve down low. That same car that supposedly pulled 13+ hp out of a 3' catback would run .2-.4 SLOWER in the 1/4. So dyno numbers become meaningless.

Also, most catback manufacturers publish their gains WITHOUT silencer, which is too damn loud for street use. Slap in the silencer and guess what? You have a 2" restriction. VOILA! All that $ wasted.

Here's the challenge: You put I/H/E ONLY on a stock KA-powered 240, run a 14.99 or lower, and I'll send you $100.

Ain't happening.

[BadMojo]

This thread should be closed for retartness. No WAY in ****ING HELL you are beating 350z's and GT's with those 3 simple bolt ons.. unlesss their drivers are on legged drivers.. come on guys.

Maybe they forgot which one was the Go Pedal and which one was the Stop Pedal.

[AZhitman]

LOL -

Screeeeeeecchh - Ooops!

[InsanityInc]

Quote »Enough enough ENOUGH!

So much misinformation (and missing variables). I won't even get started on your wrong numbers on the 'vert...[/quote]http://www.intellichoice.com/r...n/all convertible

http://www.socal240sx.org/faq/images/97b.jpgs14 (1997, photocopy of the brochure, so i'm guessing it's accurate, the first source could be off, but eh)

Quote »If you're basing your argument on dyno runs published by manufacurers, you're gonna be disappointed.[/quote]No, I'm basing it off of a few posts I've seen on forums where people have put a 3" catback on and dynoed it.

Quote »There's NO cat con that will net you 4-6 rwhp. Absurd. REMOVING the cat rarely even shows up on the dyno.[/quote]Numerous dynos which can be found in many places around the ol' intarweb tend to disagree, for pretty much any car.

Quote »Just so you know, when you dyno, you have to do SEVERAL and look at the most frequently occurring results, NOT the highest result.[/quote]99% of the dynos I've seen have 3 runs side-by-side on the same sheet.

Quote »3" exhaust on a n/a KA is ignorant. Sure your peak hp increases, but look at the torque curve down low. That same car that supposedly pulled 13+ hp out of a 3' catback would run .2-.4 SLOWER in the 1/4. So dyno numbers become meaningless.[/quote]Actually, the dynos I've seen (from independent sources, as I mentioned previously) showed no losses at all, and actually showed a substantial gain on the low end. Everyone was surprised.

Quote »Here's the challenge: You put I/H/E ONLY on a stock KA-powered 240, run a 14.99 or lower, and I'll send you $100.

Ain't happening.[/quote]I accept your challenge. Considering I'm buying the catback from you (soon, I have to take care of some other things), I'll just consider it a rebate . Only problem is, my 240 probably won't do it, since it has 200,000 miles on it. Still has OK compression, though. But we'll see.

Think about it, though. What would you put on a new mustang GT? 3" dual pipes, right? a 4.6L V8 has 4 exhaust exits on each side of the engine, and each cylinder produces (theoretically) .575L of exhaust gas, which goes into one of your two 3" pipes. A 2.4L I4 has 4 exhaust ports, but only one side, so you have .6L of theoretical exhaust per cylinder, x4 into the one manifold. So, a KA puts out more exhaust into each manifold/pipe than a new mustang GT 4.6L. Starting to make a little more sense now? Sure, there are variations in how the cylinders fill and the speed of the exhaust pulses and such, but it's not a huge difference.

[drftnassmofo]

i gotta qustion on 1/4 mi times!well..im planning on going turbo but there are a lot of mods i want/need first....i/h/3"ex./and test pipe, safcII, valvetrain, pulley kit, bigger injectors, plugs, wires, st. 2 clutch, and 300zx fuelpump, and filter.....ya think id get low 14s w/ all that...???lol..i wanna hit low 14s w/o nos and before i go turbo..i only wanna spend like $1500

[AZhitman]

Actually, the differences in the 4.6 and the 2.4 are substantial. Duration and lift, stroke, etc ALL make a big difference. And the best power-producing systems for the 4.6l are not dual 3".

Like i said, max hp isn't the ONLY thing you need to consider. I stand my my point that the car that shows a few more hp at peak on a dyno will also run slower in the 1/4.

If that was factual, then it'd stand to reason that open header on the KA would be even better. And it's not.

I know this is a debate that gets lots of attention, and trust me - I'd make a lot more money selling 3" systems to KA owners - But I won't do it based on my experiences. If you want a 3", you got it - AND, just to sow that I'm cool with the disagreement, you'll get a discount.

p.s. Don't worry about your 200K miles, it shouldn't impact your 1/4 times that much. I just pulled my VC and saw the CLEANEST, most wear-free 125K-mile engine I've ever seen in my KA. No sludge, no varnish, no wear, and I'd BET perfect compression.

[InsanityInc]

The only problem with my engine is that the last owner neglected the hell out of it. He ran it with a stretched chain, clacking guide and a clogged injector (the injector was clogged with spiders... it was..odd) for who knows how long. The compression is so-so.

Quote »Actually, the differences in the 4.6 and the 2.4 are substantial. Duration and lift, stroke, etc ALL make a big difference. And the best power-producing systems for the 4.6l are not dual 3".[/quote]They do make a big difference in the fill characteristics and the scavenging effect, but regardless of those, they expel roughly the same amount of exhaust per cylinder, and that's mainly what matters when you consider exhaust velocity.

Quote »Like i said, max hp isn't the ONLY thing you need to consider. I stand my my point that the car that shows a few more hp at peak on a dyno will also run slower in the 1/4.[/quote]And like I said, there are dynos done by independent parties that show no losses anywhere with a 3" pipe on a KA.

Quote »Actually, the differences in the 4.6 and the 2.4 are substantial. Duration and lift, stroke, etc ALL make a big difference. And the best power-producing systems for the 4.6l are not dual 3".[/quote]Well, I haven't seen any dynos for 3" duals on the newer GT's, but on the older 5.0's, they showed very convincing numbers. It might vary a bit with the slightly smaller engine, but I wouldn't imagine huge differences.

And thanks for the discount, as well. Plus, if it turns out I'm right, you'll end up selling a lot more 3" systems, so it's a win-win for you.