This summer when i graduate i am getting a new engine for my 99 Z24. What all would i have to do to it. i plan on pistons, rods, cometic gasket, port and polished heads, 2.3 HO intake manifold. and anything else that i would need. I wanted to put a direct port nitrous on and a turbo and i was looking for a way to get 300hp to the wheels without the nitrous, the nitrous is just gonna be there when i want to get it way up there. But the turbo i wanted to run somewhere around 15-18. Any help is appreciated.
thnx
First, before you jump to any conclusions, I think you need to do more research into each area you want to modify. It's not as easy as it sounds and what you're talking about is very expensive.
If you're trying to reach 300 WHP, you have to do alot of tuning to make sure you're running the right air/fuel mixture.
When you start to learn more about turbos, you'll see that 15 PSI on one turbo could equal 9 PSI on another turbo...it's not always the same.
Also, you'll see that when you start to even reach the 200s, traction becomes somewhat of an issue for FWD vehicles without an LSD (limited slip differential).
As far as the direct port nitrous...sounds like overkill and sounds like more to worry about as far as tuning goes. Ignition timing becomes something you would need to watch out for as well.
Question: Do you know what piston compression you would want to run?
Simply said, do alot of research and ask alot of questions...I don't want you to jump into anything before you're ready to handle it or dish out the money because what you're saying right now, you're probably gonna spend in the 6-8 thousand dollar range for parts and labor (assuming you're taking this to a pro to work on it) and not including dyno time. Do you honestly want to spend that much on a Cavalier? Not saying you shouldn't but you have to weigh your priorities and see if you honestly think it's worth doing.
If you have further questions, feel free to ask.
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Well i know i want a turbo. PSI doesnt really matter to much its just i have a friend with an EVO and my goal is to be able to beat him. he's running 8.5's in the 1/8th mile. we dont have many 1/4 mile tracks around here. as for compression i was thinking 9.1
thnx
ak z24 wrote:Well i know i want a turbo. PSI doesnt really matter to much its just i have a friend with an EVO and my goal is to be able to beat him. he's running 8.5's in the 1/8th mile. we dont have many 1/4 mile tracks around here. as for compression i was thinking 9.1
thnx
Ok, atleast you know you want to go turbocharged. Now before you can say "I want to be faster than an EVO", which is a big step, you need to take it step by step. Are you building the motor first or putting the turbo kit on first? If motor first, how long afterwards are you putting the turbo kit on?
Also, PSI SHOULD matter to you when you decide on which turbo to get. Ah, which turbo...that's a big decision (trust me). Picking a turbo is not like picking an intake. You want to pick a turbo to match your motor and also to match your powerband. You don't want to pick too small of a turbo nor do you want to pick too big of a turbo.
With that said, do you know already if you're building your own turbo kit or if you're buying a turbo kit?
9:1 compression doesn't sound like a bad idea.
In my opinion, leave the nitrous idea in the garbage. If you're running with a built motor and a turbo setup, why complicate things with nitrous? It could be useful in some areas but it would be easier to just turn up the boost and tune than to spray.
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turbo sizing is VERY important. learn how to read compressor maps
I was a retard, and now I'm permanently banned.
Im building the motor first in a few weeks. This one is out of a 2000 and has 27k miles on it. We dont have the money to buy a new one right now. So its not going to be a brand new engine but it will be alot newer then mine. and it will work unlike the one i have now.
The turbo and manifold i wanted to buy seperately but i dont want to go through all the trouble of making the pipes to and from the intercooler. or the downpipe. Basically i just dont want to deal with piping. i wanted to set it up like this one
one
I wanted to do the 2.3 intake manifold. Find some good cams to put in. as for the nitrous it was just a thought and isnt one nemore.
thanks
ak z24 wrote:Im building the motor first in a few weeks. This one is out of a 2000 and has 27k miles on it. We dont have the money to buy a new one right now. So its not going to be a brand new engine but it will be alot newer then mine. and it will work unlike the one i have now.
The turbo and manifold i wanted to buy seperately but i dont want to go through all the trouble of making the pipes to and from the intercooler. or the downpipe. Basically i just dont want to deal with piping. i wanted to set it up like this one one
I wanted to do the 2.3 intake manifold. Find some good cams to put in. as for the nitrous it was just a thought and isnt one nemore.
thanks
So are you saying you want to have an non-intercooled turbo system?
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no im not saying that i was saying i wanted to find a premade set of pipes for the intercooler
ak z24 wrote:no im not saying that i was saying i wanted to find a premade set of pipes for the intercooler
Oh ok, gotcha. Well I believe he bought the bends and piping and welded it together himself.
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I know that part but on there he said he might be selling premade pipe kits so i was thinking about getting the pipeing from him if he was going to sell them. Cause i asked my dad and he said he didnt want to get back into welding and anything involving fabrication because hes lazy. Btw where would i learn how to read a compressor map?
i was thinking about this idea too nitrous and turbo also for my 99 i just made my mind up just build the engine more and turn up the psi instead of using nitrous
I'm gonna have to disagree with njhk on this one and say use the nitrous. It's not as complicated as hes making it sound. Tuning nitrous is not liek a turbo. With a direct port, you tune for the jetting sizes. Start out tuning the boost and then add the nitrous and richen it up. I dont see what the problem is, ESPEICALLY with a direct port. Don't let people take you down man, it can be done and I think its a rather good idea. You dont sound like the average idiot that comes on here, so obviously just have enough fuel and youll be good to go.
Blew it up
98redcavz24 wrote:I'm gonna have to disagree with njhk on this one and say use the nitrous. It's not as complicated as hes making it sound. Tuning nitrous is not liek a turbo. With a direct port, you tune for the jetting sizes. Start out tuning the boost and then add the nitrous and richen it up. I dont see what the problem is, ESPEICALLY with a direct port. Don't let people take you down man, it can be done and I think its a rather good idea. You dont sound like the average idiot that comes on here, so obviously just have enough fuel and youll be good to go.
Well first, when I said tuning would be more difficult, I said that because ultimately, you're putting more oxygen into your motor on top of the turbo boost. Like Spotabee said, there a couple reasonable reasons why someone would want to do it but if someone is doing it for a "power boost", I say they should take full advantage of their turbo that they have.
Also, unless you have a worked bottom end, I wouldn't suggest doing any type of nitrous injection with a good amount of PSI on a stock bottom end.
I'm not saying it can't be done or not to do it but in my opinion, I'd rather just use the turbo...that's why it's there. If they do it and they are happy with it, more power to them.
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Quote:
so obviously just have enough fuel and youll be good to go.
Have you ever tough about timming? It's not just about fuel but timming and compression when you get to that point.
Gilles
2.3 Ho
Mfk-223 wrote:Quote:
so obviously just have enough fuel and youll be good to go.
Have you ever tough about timming? It's not just about fuel but timming and compression when you get to that point.
True
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Well the turbo has been my main goal since i got this car. But i started looking in the nitrous section on here and thats what made me think about combining them.
I realize that it would be a pain probably and would probably require alot more then what i listed and alot more then i feel like listing right now.
ak z24 wrote:Well the turbo has been my main goal since i got this car. But i started looking in the nitrous section on here and thats what made me think about combining them.
I realize that it would be a pain probably and would probably require alot more then what i listed and alot more then i feel like listing right now.
It more than likely will be a bit much...
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The cool nitrous works really well in a turbo application.
A smal shot will make a big diff.
Horsepower is horsepower. It doesn't matter how your making it (for the most part), so be realistic, and you will be fine.
NJHK and Spotabee are right. Turning up the boost, and tuning would be alot less hassel than adding in a nitrous setup on top of the turbo. Why would you add a nitrous kit, when you have a turbo already that can make that power?
Extream 4door wrote:NJHK and Spotabee are right. Turning up the boost, and tuning would be alot less hassel than adding in a nitrous setup on top of the turbo. Why would you add a nitrous kit, when you have a turbo already that can make that power?
Absolutely. And like I said, the only reason to add nitrous to a turbo setup is if you have a larger turbo that occasionally needs some help spooling.
I was a retard, and now I'm permanently banned.
Hell, if you're worried about down time and installation hassles, just go straight nitrous. If your goal is to beat your buddies evo, you can probably do that on a 75 or 100 shot. You'll slaughter him from a roll, and still might beat him at the strip (definately if he can't drive it). I might be getting rid of my kit, if I sell it, I'll sell it in it's entirety.
if he can't drive it and you want to really piss him off, launch on nitrous 
I was a retard, and now I'm permanently banned.
Actuallly, he is looking to make 300hp with the turbo, and add a shot on top. Its not a bad plan.
You shouldn't knock it until you've tried it.
I have and it works better than you can imagine.
What were your experiences with turbo/nitrous??
Not a bad plan at all. The cooling will really help like someone already said
Blew it up
NOSfly wrote:Actuallly, he is looking to make 300hp with the turbo, and add a shot on top. Its not a bad plan.
You shouldn't knock it until you've tried it.
I have and it works better than you can imagine.
What were your experiences with turbo/nitrous??
I'm not saying he shouldn't do it cause it's a dumb idea or anything...I'm saying he shouldn't do it on stock internals.
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