How can i get the most HP/ torque out my ride

[JakesS13]

Okay, I was just wondering about ways to improve horsepower and torque on my kade in my s13, i'm already going to turbo it, turbo sittin at my shop. But i'm just wondering about any other things i can do. I just want answers from people who know what their talking about

,jake

[JakesS13]

17 views, no replies

[scotty-2-forty]

It might be more helpful if you were to provide a list of all the components you're using (or plan on using) both internally in the engine and externally. In other words, what compression are you planning on? Internals? Turbo size and details? Cam? ... You also might want to post this in the KA24ET / KA24DET Forum.

[JakesS13]

Well bonestock ka24de, and t03-t04 turbo. Probably gonna boost to about 7-10 psi.

[DanThaMan]

Search dude, there's a lot of info out there to be had... but since I'm not a complete a**, get a decent exhaust system first, then slap that snail on there, get a decent tune/ fuel management and viola more power lol! You asked a pretty broad question, the best way to answer is to search and you can get info. tailored to what you don't know or understand.

[JakesS13]

Already have three inch catback. but definately will do the other things!

[Lobo240sx]

Depends on what year your ka engine is also. People usually remove the secondary butterflies on the intake collector. That is if you have a S13 91-93?? KA24DE. There should be a write up on it somewhere around here.

Other engine modifications and specs would be helpful.

[scotty-2-forty]

Okay, I was just wondering about ways to improve horsepower and torque on my kade in my s13, i'm already going to turbo it, turbo sittin at my shop. But i'm just wondering about any other things i can do. I just want answers from people who know what their talking about

,jake

Well bonestock ka24de, and t03-t04 turbo. Probably gonna boost to about 7-10 psi.

Which one???

[JakesS13]

No, its a 1995 ka24de

[JakesS13]

What do you mean which one? Lol

[scotty-2-forty]

Plenty of DE's running with that set-up. Did you rebuild the engine, or if not how many miles on it? A proper tune (such as on a dyno) is what will maximize your power with any set-up. When you say the turbo is at the shop, is this a speed-shop and do they know what they're doing? There are SOOO many details that differ from build-to-build ... it's been said, but you're better off searching with details according to your preferences. The secondary butterfly removal is definitely a plus.

[scotty-2-forty]

What do you mean which one? Lol

Nevermind ... brain fart ... didn't see the "d" in the first one.

[JakesS13]

No rebuild, its got about 130k but its still got all its power left in it. And when i say shop i mean the shop im working on it at Lol, noone else but me and my bros workin on it. definately gonna dyno and tune once i get turbo on.

[scotty-2-forty]

What are you using for wastegate and blow-off? Are you intercooling? What exhaust mani do you have? Pics if you got'em!

[biggie]

Then the most important question would be fuel and engine management.

As well as using S14 engine means you could do a S13 cam swap to add a little to the engine.

[scotty-2-forty]

Then the most important question would be fuel and engine management.

As well as using S14 engine means you could do a S13 cam swap to add a little to the engine.

Yes, like what do you (@JakeS13) plan on for injectors, fuel pump and of course the ECU?

[scotty-2-forty]

Jake, I'm going to cover a few things for your benefit that in turn will yeild you more efficient power. Some things may not be within your budget (or even considered), and while you may or may not know some of this already, it's important to take note.

The basic reason for turbo charging is not to increase compression or the maximum pressure in an engine cylinder, it is to increase volumetric efficiency (the efficiency of the engine at drawing in air) and forced induction is the most effective method of upping compression ... things to take into account when adding a turbo to a NA engine. When a NA engine sucks air in, it can only draw so much in before the intake valve closes and seals the cylinder. The average NA engine will pull in around 60% of its volume, so as a result is only 60% volume efficient. The more highly tuned an engine is the more efficient it will be. The best way to improve this is to force the air/fuel mixture into the cylinders (forced induction) thus filling them more. The average forced induction engine runs from 110% to 150% volumetric efficiency. Huge difference - Cool!

Getting that out of the way, if you increase the amount of air/fuel in the cylinders, then as a result you will increase the compression, which could be too much. In order to keep the final running compression the same, the initial compression (without boost) has to be dropped to compensate. More air will enable more oxygen to be available for burning and with the addition of additional fuel the engine will release more power.

When adding a turbo to an engine which was not originally designed for a turbo, take into account ... Detonation or knock - this is where the fuel ignites under pressure before the spark happens. This will cause a piston to move in the opposite direction if it has not reached the top dead center and will have disastrous consequences for the engine ... In other words BAD, very BAD. To avoid detonation (premature ignition) you will need to lower the compression of the engine, and or restrict the turbo to a low boost threshold. (Low compression engines plus a turbo will also avoid some of the turbo lag problems inherent in most turbo applications.) - Could be another key to your gaining the most you can get. The best turbos to add to a non turbo naturally aspirated engine are small with low boost levels, so your T3/T4 is acceptable.

Another option and not mentioned too often is to fit a water injection kit to dampen the air charge and prevent detonation. Any compression ratio above 9:1 and you will have problems. In all cases you should use the highest octane fuel that you can find as the higher the octane the more resistant the fuel is to engine knock. But running the KA24DE with stock compression I would recommend you run boost pressure at max 7psi (no higher), and use only higher octane fuels (and/or octane booster). Yes, some here run higher boost on a stock DE, but this is my recommendation.

You should also get the head flowed and increase the port size, fit oversized valves and go with an efficient equal length tubular exhaust manifold as there will be a much larger volume flowing through the engine.

As Biggie states, particular attention should be paid to fuelling. More air requires more fuel or you risk the danger of burning too lean. You also want to avoid overfueling when the boost from the turbo drops as this can destroy the engine. On most aftermarket turbo applications it is unlikely that the cars existing fuel delivery system will be able to deliver sufficient fuel so you will need to upgrade the fuel pressure with a new pump, fuel pressure regulator and injectors. Your computer will also need to take into account the new fuelling requirements of a turbo, especially with regard to throttle position and wastegate control and rapidly changing fuel requirements between on and off boost conditions. I strongly recommend a good aftermarket ECU to allow you to create a custom map.

You really do need to know what you are doing or at the least have an experienced turbo engine builder assist you, in your case hopefully your 'bro'. These are my thoughts and I hope they help.

[JakesS13]

Well i still have to get the s13 dohc manifolds and such, but thanks for all the info, it will def help in the build, i think i'm going to wait a while before i install turbo in order to get the correct parts. But once again, thanks guys.

[scotty-2-forty]

I refuse to help this child anymore. Sorry Jake, you should've meant it when you said "later b/tches".
1995-pathfinder-strange-vibration-t520648.html

[pj]

dont help him anymore scotty, he's flawless with math, has a big brain and a car that screams danger to manifold during those sweet 3 second 0-60 times...but hes on a forum asking for help.
dude seriously, someone ban this kid.
not only for being a jerk, helping no one at all and having snarky replies...but for having a stupid a** haircut.

[scotty-2-forty]

I have only two apologies to make: (1) Yes, I ramble when I'm poked and it gets off topic; (2) That I even attempted to help him.

[Lobo240sx]

You owe NICO a 10 Second car!!

[charat]

1. take premium grade money (preferably $100 grade/milliliter)
2. blend said 100 dollar bills in a blender.
3. mix well with octane booster like an expensive vodka.
4. repeat until you have enough or run out of money.
5. pour into gas tank.
6. start car.

instant endless power and endless torque.

[OutToWinPAHC]

locked

[scotty-2-forty]

locked

You forgot to turn the key. .............

[OutToWinPAHC]

Nah there is a delay in it, about 3-5 min...... but FYI you should use the report thread button if you see BS like his.