need help-power bands

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1991h9
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Joined: Thu Aug 23, 2007 6:25 pm
Car: 1991 240sx
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Ill be going to uti this summer and soon ill be wanting to finally start on my 91 hatch. two of the engines, yes the sr20det and the ka24det, (this isn`t a post to see which is just so darn cool, i need help on which on has a longer power band. my ka24de redlines a 7 but i shift at about 5500 - 6000 cause it starts to lose power after. so i know without a turbo and camshaft mine is 3500 to 5500-6000. does the sr top out at 8? cause im guessing on the research that the band is about 5000 to 7500-8000.i know the ka has more torque. if i have any info wrong, sorry, please correct me. and if your gonna talk shlit on if the sr or kat is just way better and the other one sucks, just get out and dont be dumb. Thanks


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480sx
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Car: 1996 Pearl White 240sx

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Lack of proper grammar, your sentence structure, and the chip on your shoulder, or whatever... makes me not want to answer your question. Ill still try to help you out, im just trying to let you know that your coming across as kind of a prick.

There are a lot of variables that can effect your power band. Either motor can be setup to have a considerably longer power band than stock. Things like turbo selection, cams, as well as a few other things will drastically alter your engines curve.

Comparing the two motors side by side is pretty difficult. The ka did not come stock with a turbocharger, most people put a wide variety of turbos on them. So were really trying to compare apples to oranges here..

Both engines even in 'stock' trim have a long enough power curve to accomplish whatever your goal is. The major difference is where your power hits. On a ka, you will see your peak TQ at between 3500 rpms and 4000. For an SR, you will be in the 6000 rpm range for your peak tq.

It really all depends on your setup, i mean i cant give you much more information that that. If you want to get a little more technical, for instance comparing a stock block t25 ka-t to a stock s13 redtop we might be able to give you a little more information.

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240sxvaj
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Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
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It all depends on how much money and time you're willing to put into the car. UTI sounds like fun but there's a nissan club online http://www.nicoclub.com that doesnt cost a thing and able to learn a lot. the key is research. j/p

if you want to be different go ka-t=mad torque, or jdm go sr=rev happy w/less torque. both good cars. stickies help a lot too.

youtube ivan's ka-t

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1991h9
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please inform me how and what i said that made you think i came off as a prick because the only rude thing i said(i guess) is that if anyone says (the sr is better, ka sucks or the other way around) dont even post, cause thats dumb, pointless. and my grammer, i ain`t tryin to turn this in as a paper to be graded. theres nothin wrong with writin wat for what, or nothing, for nothin, everyone still gets the point. and thanks for your info, still researchin on what engine i want.

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WDRacing
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Joined: Mon Nov 25, 2002 2:00 am
Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
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His point was simple, it takes an average of 7 whole seconds longer to use caps and the actual word instead of short hand. The fact that you don't want to use caps and the actual wording means you don't want to spare us those 7 seconds and make reading your comments all the more easier. So when asking for something, it's always best to put forth as much effort as you can so we don't mind helping you.

This is universally accepted on all forums. Ask around, people always prefer to read things where even a little bit of grammar is used. It's no big deal.

You need to figure out what your budget is, what your max power goal is and what the car will be used for. Then we can better assist you with the best choices.

Without those I could say buy a twin scroll turbo, 272 cams and a new valvetrain and the head will be good for 8000 rpm on either motor. Add some rods and pistons since you'll need to on either engine to make big power and you've got a recipe for almost limitless power, just depends on budget.

WD

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1991h9
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See, thats all i needed to hear because i didn`t know that. Thank you for informing me that it`s expected. My budget on the other hand, doesn`t matter too much because i`ll just keep saving untill i have the money. For the power goal, about 400whp at maybe 14-16 psi. One hard thing for me is smogging, because im going to want to drive more then once a month, almost a daily driver, and in california almost everything is not legal. I only drive an average of 600 to 800 miles a month. Do you guys have any advice one how i could pass besides handing over a few hundred dollars for a smog or swapping a stock ka every time? Thank you again Hope this is a little better

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WDRacing
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I'd love to help you man, but it's close to pointless if you live in CA. CARB is the end all to killing performance. Your car won't ever pass a visual, emissions I can get around but you'll be screwed unless you know a way to get by the visual tech inspection. None of the kits I would recommend have a CARB sticker or even allow for the use of the stock EGR system. You could however modify the EGR tube to mate with the downpipe, but it's still against state law.

CA is just a bad place to live and be into cars. I'd get into older muscle cars that are age exempt.

WD

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240sxvaj
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Joined: Fri Dec 22, 2006 1:57 pm
Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
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no way you going to get away without cheating on smog. since you're already doing something illegal just go all out, as long as your car doesnt look riced out then you shouldnt worry about getting pulled over. my cars been ka-t for about a year now and havent been harassed by cops.

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1991h9
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Mine looks a little riced, look at my web page at the bottom and see what you think. But im thinking about getting it registered in Nevada or Oragen. Cailfornia does suck. haha. But i`ll try my best. Anyones knows a place thats sells vq35?????

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sunnys14
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Gear ratios, redline, turbo setup, cams... etc all effect your POWER BAND.

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240sxvaj
Posts: 2076
Joined: Fri Dec 22, 2006 1:57 pm
Car: 1991 240sx fastback KA-T- SOLD!
1994 MKIV TT-Daily/Track
Location: So-Cal

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1991h9 wrote:Mine looks a little riced, look at my web page at the bottom and see what you think. But im thinking about getting it registered in Nevada or Oragen. Cailfornia does suck. haha. But i`ll try my best. Anyones knows a place thats sells vq35?????
Looks nice. doesnt look riced at all. i'm talking about huge GT wings and crazy looking body kits. LOL. few of my friends got pulled over and had to replace everything back to stock, such as civic with swap. i dont want to be in that position because i am getting my engine built(not risking all the sweat and money i put into just to make it back to stock), i'm leaving it with stock wheels and trying to replace my buddy club spec2 exhaust to rs-r exhaust w/less noise and close to stock look. I'm planning on a sleeper look since cops in CA Suck a$$. Good luck w/ your set-up


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