N/A Power Upgrades

[dr1ftr]

Hey everyone.. had some questions (believe it or not). Mucho gracias for your help.. sorry im not good at german

Ok for my 'summer 05' project ive decided to direct my attention away from the body of my car for two reasons.. One: It has the worst luck ever (see my cardomain page http://www.cardomain.com/id/drlftr) and two: I'm a sleeper kind of guy. Now here are the list of parts I will have by September, some things I already have.. Oh I want to keep the car N/A for some effed up reason.

HeaderCamsMSD Blaster SS coilMSD 6a ignition boxz32 Fuel filterS-AFC255lph Walbaro Fuel pumpA real cold air intake with an HKS twin filter design (to see if 2 filters are better than one)N-1 Exhaust with 2.25inch pipingNGK plugs and Wires480cc injectorsKoyo Racing Radiator

Now my questions are simply this..

#1. Would installing cams from a 91' KA24de provide a HP/Torque increase for a 93' KA24de? I hear the 91' cams are 'more aggressive'.

#2. Does anyone know a good base tune for the S-AFC on a N/A KA24De? (Run it leaner or richer)

#3. Are there any suggestions to parts I should add/delete from this list?

Thanks for the help fellers..

Paul1993 240sx107,321 miles of pure fun
Modified by dr1ftr at 4:42 PM 4/23/2005

[9240sx]

93 cams are the same as 91.All s13 ka24de cams are the same.And you can also put a UR or ASP crank pulley and a light flywheel for some more horsepower.

[keepingthe240]

THe following won't do much for hp and most likely wasting your money. Comments are noted.

S-AFC255lph Walbaro Fuel pump <--stock will doA real cold air intake with an HKS twin filter design (to see if 2 filters are better than one) <--k&n is enoughN-1 Exhaust with 2.25inch pipin <--too small480cc injectors <--you don't need more then stockKoyo Racing Radiator <--crap o roma "one core with plastic end tanks"

I've talked about pushing the ka24de to 200 whp before and it doesn't come cheap. If you like wasting money (buying a koyo), send me $126.00 and i'll tell you how to get the last 10 hp to get to 200!

[dr1ftr]

LoL, piece of **** USDM engines.. gotta use that $126 on a new oil pump now.. this car is getting on my nerves!

[Hard_Limitz]

On my Built Cylinder Head I installed the 370cc injectors and the car ran hella rich ! Sucka was spitting gas out of the exhaust at a stock 34psi. The car would bog at WOT and anything above 4,000rpm. I put the stock ones back in and they ran great! I am only now reinstalling the 370cc injectors with the AEM EMS running everything. I do not think you need injectors that large for an N/A application. The problem is not the fuel, but pushing enough air.

[CCurate]

the cams in the 91 ka are slightly more aggresive than any other ka, but nothing significant. You should look into a lightweight driveshaft. it won't and horses but it will help significantly with revs, as will a flywheel. also if your going to keep it n/a you don't need to go to 3". 2.25 should be fine. unless you have plans to go turbo. stock radiator should be fine. get an aftermarket thermo an that should cover you A$$ for cooling. get rid of the water pump fan and either rewire your stock electric or buy aftermarket. that fan is parasitic.

[dr1ftr]

So the ignition and exhaust goodies are a go.. Should I go ahead and buy transmission upgrades instead? (ACT clutch, Fidanza flywheel)

Are Koyo Radiators really thatbad?

[silencer.1]

Are you overheating? If not, why change the radiator?

Easy ways to gain a few hp to the wheels:

New dist cap and rotorGood plug wiresGood plugsLightened flywheelUnderdrive pulley2.5" - 3.0" mandrel bent exhaustK&N air filter4-2-1 headerHigh flow cat / test pipe

All that will up you a fair amount and no engine disassembly is required. If you want to really tune it, you're going to need at least a wide band O2 sensor and controller.

If you want a dramatic change, you could up the compression ratio with a set of ka24e pistons. That'll get you up to around 11:1.

[keepingthe240]

Are Koyo Radiators really thatbad?

Koyo is a one core with plastic end pieces. Sounds like a waste to me! You might want to talk with someone that has one though for their option.

You ever notice no one is running a w/b box or combo there for of ? No, i don't even what to know !!

[grip_racer]

koyo makes 2 core all aluminum racing radiators.

those 1 cores are just oem replacements

[Hard_Limitz]

I wanted the all aluminum Koyo radiator at first as well. However B&E Custom(LS Automotive) suggested that I get the Griffin one instead. They said they had a lot of their cars overheat and the top of the radiators came off. In case you did not know, they service the Falken Team cars. So their customers are creating a lot of heat. N/A I don't think the Koyo would be that bad. However I chose the Griffin. If you got bank you could always get the fluidyne one. Oh and by the way get the Flex-a-lite electric fans 210 kit. That **** is so damn thin. The stock clutch fan and shroud is really massive compared to it. Summit Racing has them for $238.77 and you don't have a massive wait for the part. This was another part phase2motortrend gave me a long E.T.A. on. However Summit had it at my door in 3 days.

[Hard_Limitz]

What is the condition of your transmission? How many miles are on it and are the synchros still good? I just purchased a rebuilt transmission from phoenix transmission for around $1000 with shipping (for the core as well). They use the Borg Warner Rebuild Kit and I can say it feels really good. Like for any of you guys needing a transmission. This is the place! The B&M short shifter is also really solid . I tripped at first because I saw the made in Taiwan sticker on the boot . A quick call to them assured me that the boots were made in Taiwan and China, but the rest were made in the U.S.A. I don't mind Taiwanese products, but I am not about to pay made in the U.S.A. price for cheaper overseas labor. The fidanza aluminum flywheel will feel good . There are no idle issues and there seems to be no observed effects on the electrical systems. However be warned that your starts and hill climbing will suffer at lower rpm. In my opinion it was as necessary as the B&M short shifter. As far as clutch I have heard ACT uses a ****ty disc. I just installed a new 50/50 clutch with the flywheel and transmission. I will let you know how it works out. If you want to save some bucks check out gripforce. They are an ebay seller and it seems to be run by some Korean family. They have a large selection for all of your needs. And think about what your application is going to be. In other words don't get a 6 puck metal disc if you are only going N/A on pump gas. Oh do yourself a favor and skip the stock replacement clutch. As you modify your car you will regret it later. Like I did!!Doh! You got the right idea thinking about a system. Now if you got some money left over I think you should consider the aluminum driveshaft since you got your transmission down anyhow. It is only $225.00 through B&E Customs(LS Automotive).http://www.bnecustoms.com/ Good luck!

[dr1ftr]

How exactly does a replacement thermostat help with hp?

[n_bogie]

How exactly does a replacement thermostat help with hp?

i also wonder on that? only thing i can see is to help it stay on the cool side. but i would nott consider it a hp gainer.just about like saying carbon fiber windsheild wipers to give some weight loss. i actruely had a guy tell me thats why he had then at a car show. i simply asked wouldnt takeing them off work better? not like your going to drag at the strip in pouring rain

[dr1ftr]

Carbon fiber.. hmm. Maybe if I get a carbon fiber thermostat! Quick, to the bat mobile >=o)

[Kenrik]

I personaly think that people who do things like put carbon fiber windshield wipers are just... well stupid!! I see people taking out their AC or their backseat to save a few pounds... and these drivers weigh 250 pounds... Forget about stripping the car down, get on a tredmill fatass! ***end rant***

[keepingthe240]

If you guys like throwing your money away, just give it to me! When the $126 and change is paid, i'll let you guys in. You guys are spending a boat load of cash on stuff you can get done cheaper and i'm not talking about c/f windshield wipers!

[dr1ftr]

Yeah stripping your car down just for 2hp is only something that 4-door civics have to do >=oP

[Project S13]

How exactly does a replacement thermostat help with hp?

I agree that it won't do much of anything for your hp, but as you do some mods and drive harder it's cheap insurance since if your engine blows you will have no hp =p Not sure if you're being sarcastic or not tho, but yeah, just to safeguard your car.

[keepingthe240]

Try again! Putting a colder therm in tricks your computer into running a richer mixure. In other words, you computer will still be in warm up mode. The ford mustang is a good example. Just say no to elmmers glue!!

[dr1ftr]

That sideshowbob guy knows his stuff.. but question: would that give me any more ponies or torque.. or is it a mental hp gain? Like decals on hondas?

[keepingthe240]

Of course, i know my stuff. I bought my first "hot rod" 18 years ago and am at least 15 years older then 80% of the peop on nico!! Hell, i know of 3 other ways to add more hp to the ka. I can't believe you guys havn't figured it out yet. As i said before, don't bother asking how. Theres money in those hills and i'm getting paid for it. Bar none , get my point?

That sideshowbob guy knows his stuff.. but question: would that give me any more ponies or torque.. or is it a mental hp gain? Like decals on hondas?

[dr1ftr]

Ahhh you say you know your stuff grasshopper.. why don't you enlighten us with your wisdom of the KA

[keepingthe240]

As i said before, don't bother asking how. Theres money in those hills and i'm getting paid for it. Bar none , get my point?

Can you read? You can en-lighten you wallet ! Hows that?

[ShionS14]

not to be too much of an *** sideshow but, this forum is designed for people to share information and help each other out. by you telling us that you know of three ways to add horsepower that we dont know of you are not contributing anything to this forum except trying to solicit business for yourself. i am not trying to harp on you, although what i say is true. so if you know something and aren't going to share it, dont even bother to make mention of it please

[Project S13]

if you know something and aren't going to share it, dont even bother to make mention of it please

Also not to be an ***, but...

[:: orion ::]

OOOhhh...I know..I know...but I'm not telling, unless you pay *me* $125.00 USD.

You'd save a buck (one whole dollar!!!), and you'll get the answer to *three* (3) more ways to add HP to your KA!!!!!

...

sideshow...you says your old, but you're acting like a f'in child.

You've made these claims on here now, and I've seen it in the past...your antics are (like you) getting old.

- Brian

[BadMojo]

OOOhhh...I know..I know...but I'm not telling, unless you pay *me* $125.00 USD.

You'd save a buck (one whole dollar!!!), and you'll get the answer to *three* (3) more ways to add HP to your KA!!!!!

I'm beginning to think one of the "secret ways" to add HP to the KA is a solid fuel rocket booster. The other two may be warp drive and a flux capacitor.

Anyway, as far as NA mods go you could also look in to a JWT ECU (preferably used, as they're pretty expensive) and pdm-racing has some nice cams (not regrinds) that will add some much needed top end to the KA.

I think exhaust, intake, header, ECU, lightweight crank pulley, flywheel and cams would make for a fairly fun ride. It's certainly not going to be a monster, but I bet it'll be more fun to drive.

I would leave the OE radiator and clutch fan as is as long as you don't have cooling problems and just do cap, rotor, OE wires and NGK plugs (normal tune up stuff). New fuel filter, Z32 or otherwise is good to do, as noted below.

[keepingthe240]

OOOhhh...I know..I know...but I'm not telling, unless you pay *me* $125.00 USD.

You'd save a buck (one whole dollar!!!), and you'll get the answer to *three* (3) more ways to add HP to your KA!!!!!

...

sideshow...you says your old, but you're acting like a f'in child.

You've made these claims on here now, and I've seen it in the past...your antics are (like you) getting old.

- Brian

I do regret bringing it up last time and i'm starting to regret bring it up again this time. THe funny thing is that i offered to tell 3 of the "big shots" on nico ( names withheld)if they gave me a production version of the pieces. Didn't hear from them about it. I laugh everytime i think about it! If they don't want to share in the profit, have at it.

Share info...my butt! 99% of the stuff i ask goes unanswered excluding the audio section. Whats the deal with that?

[nissanblaze]

Hey guys let me know if I am doing my car right and if you have any suggestions please e-mail me. it's at http://www.magnum4link.com/projects.htmlmy e-mail is [email protected] anyone thinks I should buy something before something else please tell me. My driveshaft will be aluminum from a corvette as soon as my rear end is changed out.

-Curt thanks Guys