HP and Whats Under the Hood ?

[carkid0007]

I was wondering how much hp everyone has and what they put into there car to get that out of it ??....and was wondering what are some minor things that I could do to increase performance and hp and tq ?

[russian]

performance wise,

i have about 160 hp right now, still waiting for rest of the parts (5zigen echaust, pulleys )

heres something to start with

Upgrades for your 240sx

1) Air intake (Aem, injen or hks) average of 5-7hp gains
around 150-220$$

2) exhaust (5zigen, HKS or Apexi) will give up to 10hp (more with headers and intake)
400 - 600 $$$

3) headers (Hotshot) will give up to 12 hp with previous mods.

350$$ + High flow cat 150$ + o2 censor fitting 50$ = 550$$

4) Pulley set (ASP unorthodox) ASP is 99$
sure gain of 7-12 hp,

so COUNTING you Have 155 hp of STOCK with all those mods you will get :

Minimum : 30-35hp gain

MAX 40-45hp

with all those mods, done yourself, you save on labor and spend only around on average 550$ + 500$ + 150 +100 = 1300$$

hope this helps

[Jeff240sx]

Est. 340rwhp when engine is completed, based on other setups with less mods.
Under the hood: Gerbils. I feed them well.
-Jeff

[Jeff240sx]

Originally posted by russian
performance wise,

heres something to start with

Upgrades for your 240sx

1) Air intake (Aem, injen or hks) average of 1-3 hp gain
around 150-220$$

2) exhaust (5zigen, HKS or Apexi) will give up to 5-8 hp (more with headers and intake)
400 - 600 $$$

3) headers (Hotshot) will give up to 5 hp with previous mods.

350$$ + High flow cat 150$ + o2 censor fitting 50$ = 550$$

4) Pulley set (ASP unorthodox) ASP is 99$
sure gain of 3-5hp,

so COUNTING you Have 155 hp of STOCK with all those mods you will get :

Minimum : 14hp gain

MAX 21 hp gain

with all those mods, done yourself, you save on labor and spend only around on average 550$ + 500$ + 150 +100 = 1300$$

hope this helps

I've taken the liberty to change the horsepower gains to show more real-life scenarios, rather than the ubiquitous ass-dyno horsepower gains. Those always seem to be mis-calibrated by about 5 horsepower per mod.
Remember, we're modifying a 143ci engine, not a 440ci engine. You'll never get 15rwhp from a header on our cars. Ever. And underdrive pulleys don't really gain that much horsepower... just saves a little parasitic loss. And don't tell me that sparkplugs, wires, or flywheels give power either.
If you wanna make power, you have to get inside the engine. Cams (s13) are hotter than s14. The JWT ecu has provided 15rwhp dyno-proven, to NA applications.
I may be low.. but I'd always rather lowball and say I have 340rwhp and get spanked by a Corvette than claim to have a guesstimated 380rwhp and still get spanked. Also.. my above number should be very close, and after the break-in... I'll have some dynojet numbers.
-Jeff

[russian]

i dont wanna argue with you but, good spark plugs and wires do affect performance, better ignition system=better performance, with consequencial increase in hp (insignifacant but its there). actually good set of wires can cost you up to 150$$ like neurowire (i had them of my galant before i got 240sx).

[AKADriver]

Ignition crap doesn't do a damn thing unless there's a deficiency in the stock system, which there isn't here.

When you start running a turbo, or an NA motor with increased compression, or serious high revs, then we'll talk about power gains from ignition parts (but even then it's not a power "gain" so much as getting back power lost to weak parts)

[kandyflip445]

Actually a good ignition can help...but it's nothing to make you go and spend $150 dollars on wires . If you really want a good increase from ignition, switch it to a distributorless ignition. With individual coil packs for each cyl. This won't really give much horsepower. But at higher RPM's(even as low as 4-5K) it will increase the amount of dwell time for each spark plug a GREAT deal. IIRC there isn't a company that makes a ignition kit like this for the KA though... But if they did this would have to be a "Have to get" thing of a KA-T owners list. You have to actually look at the wave patterns to realize the difference. I'll try to get some so I can post them on here tomorrow. If you want some form of proof as to how better it is look at car manufacturers now. More and more have individual coil packs/1 coil per 2 cyl.

Sorry if my explaintion isn't all that good. I'm very tired and should probably go to bed... Just ask and I'll try to elaborate.

[Jeff240sx]

Yea. Russian, Kandyflip... wires and plugs won't make a difference in power gains on HIS car. It's not turbo, it's not even tuned NA... it's just bolt-ons. Unless his ignition system is crap, he won't gain power. And even if it was crap.. he won't gain power per say, but rather go back to stock power output.
That said.. there are things you can do to your ignition system to make a more complete burn (coil packs, MSD box, ect.) that will increase the spark and/or make the spark more regulated to a much smaller timeframe. Both of these can gain power, but it's so marginal on a bolt-on mods car... you're wasting money.
But I know people have to prove their points, so go ahead.
-Jeff

[kandyflip445]

Yeah. I never said it would on his car...but on yours Jeff... . It could be VERY worth your time to look for a DIS from here . But yeah, on most cars it won't make a big enough difference to justify buying it and taking the time to install it. But, if you look at the dwell for a single coil pack for a 4 cyl. engine at the mid-upper RPM range then you would know why a multi coil setup is really good. But, like everyone(for the most part) agrees. On a near stock car it isn't worth it. Unless you plan on goin a long was. Then to have it from the beginning would be good. The electromotive one also has a rev limiter using the ignition. With a fuel cut defencer this would be a nice thing on detonation prone cars also.

[adey]

I'm estimating 120-125hp to my rear wheels... under the hood I have a stock KA with plugs wires and a KN panel air filter.

[thon]

about 205rwhp on stock boost, just the bolt ons (+sr20det heh),

flywheel, twinplate clutch, cone filter, 3" turbo back exhaust, FMIC

thon

[russian]

i forgot hes talking about stock. then i see why it wont make much difference. i my galnt was turbo , kinda rare setup but it did make a difference then as far as coils. i guess it wont do nothing for stock, only improve idle - which is pointless.

[russian]

oh one more thing, since we are talking about this, what about performance
if i do a SR20 swap, having this setup
HS headers
ASP pulleys
aem intake
5zigen exhaust

i will prety much will have to change all of them towards sr20 parts right?
sorry for out of topic

[adey]

Of all those mods you listed, the only one you'd get to keep (with the SR) is the 5zigen cat back -- even then though, you'd be better off trading it for the turbo version... sorry man! Nothing else is transferrable.

[Dousan_PG]

my base dyno was 136.1 RWHP and 136.9 torque
that's just stock ka24de (all stock) with only a RS*R catback exhaust

but my car had serious problems and it lost power on next 2 runs haha...timing issues. should be fixed now.

[russian]

hmm... maybe i should save up for a turbo, f-max is around 4000$.

still sr20det is cheaper, since its factory turbo charged already plus you get low mileage engine )

[AceInHole]

Baseline: 142.6rwhp (cheap cone air filter and headlight eyebrows might have played a role in that extra power though).
Est. current: 200rwhp
Current mods: Powered by Volvo KA24DEt @ 6psi
Volvo TD05-12B
Volvo recirc. BOV
DSM 1g SMIC
370cc injectors
2.5" downpipe
Ported + polished head
248deg S13 exhaust cam
Log manifold w/ ported .5" Hotshot flange

Can't wait to get it dyno'ed so I don't have to make up numbers:
142.6 baseline / 1atm * 1.41 atm boost = 200.8rwhp
Also can't wait to run 8psi.....

[Tyler Durdan]

Hey Ace, where did you mount your eclipse intercooler. I am still trying to figure a good spot, and am thinking of relocating the battery to put it there. Just curious as to what you did.

Oh yeah....back to the topic.

Right now...bolt on's.
Within two months....220 hp with ka-t setup.

[AceInHole]

Originally posted by Tyler Durdan
Hey Ace, where did you mount your eclipse intercooler. I am still trying to figure a good spot, and am thinking of relocating the battery to put it there. Just curious as to what you did.

Oh yeah....back to the topic.

Right now...bolt on's.
Within two months....220 hp with ka-t setup.

not mounted yet, but it's going into the driver's side fenderwell where the intake resonator was.

[Silvia_Fanatic]

Unfortunately there are no places around me where I can get my car on a Dyno but here is what I have done so far on my 1997 240SX SE:

Injen CAI
Hotshot Header
Random Technology High Flow Cat
Apexi N1 Dual catback

I'm gonna have the local machine shop look at my engine soon to see what I can do about rebuilding for more power. If I can make a nice HP gain going the NA route then that's the way I want to go. Does anyone have any suggestions for the engine rebuild? Are there certain brands I should look at for the pistons and cams?? I don't know much about engine rebuilds so any info would be greatly appreciated

[DoriftoSlut]

Originally posted by russian
hmm... maybe i should save up for a turbo, f-max is around 4000$.

still sr20det is cheaper, since its factory turbo charged already plus you get low mileage engine )

Ahh. Another "All engines under 30k" believer . Only late model 180sx and S14/15 engines will really have low miles (Unless you get clip with a gauge clutser where you can tell what the Earlier engines had).

[Dousan_PG]

Originally posted by Dorifto180sx
(Unless you get clip with a gauge clutser where you can tell what the Earlier engines had).

but if its a redtop w/ that low miles...its probably been in the junkyard for a many years.

[DoriftoSlut]

Yeah. but he asked about low lileage, not low mileage and ****ty. LOL.

[russian]

hah
it depends who you buy it from too. not all companys deal ****ty "low mileage" engines

[RedlineRacer]

so you are looking at 175 top hp with good headers, exhaust, and intake?

[russian]

yea should be around 175-80rwhp after all those done