Just curious (turbo question)

[Spilner521]

If I was you I'd mount the injectors into the intake manifold pointing them as much as you can directly into the runners so they spray into the cylinders. This way there's less chance of puddling, the fuel will mix better with the air, and you also don't have to worry about upgrading later. I don't know how much power you're shooting for, but you'd probably be ok using 440cc injectors for the secondaries. They'll be good for a 8-10psi setup and also leave you a little room to add some more boost when the time comes.

[rustyballs_69]

Would this work?
http://i4.photobucket.com/albums/y13...9/H1CTurbo.jpg
J/K its for my truck.

[sorrowfulkiller]

yeah... as long as it's not enormous

[DOHC_tuner]

Originally Posted by Spilner521

And for anyone that would like to know, I'm working on a write up all about turbos, how they work, and the parts you need to make your own basic kit. Hopefully this will help many people who don't know the first thing about turbocharging. Also, from some of the other misinformed posts around here, I'll need to make an exhaust write up also. I'll post them in the General Performance forum when I'm finished and hopefully they'll become stickies.

SPILNER i cant wait for U 2 do that write up on turbos and how 2 set one up, especialy your setup with non-flashable pcm 99' 2.4 DOHC. How u did your own tune adding extra fuel injectors, turbo to fit the 2.3 high output intake manifold, etc. Well pm when you get around 2 writing how 2 setup a turbo for the inline 4 and keeping a A/F stoichiometric mixture. I CANT WAIT

p.s oh yeah arent you doing a engine swap? if so what will U do with the turbocharged 2.4?

[[ion] C2]

turbo parts setup guide: http://www.j-body.org/forums/read.ph...=56976&t=56976

[rustyballs_69]

Originally Posted by sorrowfulkiller

yeah... as long as it's not enormous

Its for the 5.9l cummins desiel. I would rather put it on the truck then the car.

[Spilner521]

Originally Posted by DOHC_tuner

SPILNER i cant wait for U 2 do that write up on turbos and how 2 set one up, especialy your setup with non-flashable pcm 99' 2.4 DOHC. How u did your own tune adding extra fuel injectors, turbo to fit the 2.3 high output intake manifold, etc. Well pm when you get around 2 writing how 2 setup a turbo for the inline 4 and keeping a A/F stoichiometric mixture. I CANT WAIT

p.s oh yeah arent you doing a engine swap? if so what will U do with the turbocharged 2.4?

You can flash the '99 PCM with a 2.4 with HPTuners, but you don't have to change the PCM tuning to add boost to any car. It's very easy to use piggyback controllers to control larger injectors or extra injectors.

Everyone seems to think the only way to turbo a car is to reprogram the PCM and that's just not the case. My car is 100% streetable and runs EXACTLY like it did when it was completely stock and I have NO PCM reprogramming at all, and I've also never had any problems with the setup.

DOHC_tuner, I'll explain everything in the write-up, but I can tell you now how I have my engine set up. First of all you mention a turbo that fits the 2.3 HO intake manifold. The intake manifold never touches the turbo so using the HO manifold doesn't have anything to do with turbocharging the engine. The turbo mounts to the exhaust manifold, so you need a different exhaust manifold for the 2.4 engine to mount the turbo to.

With that said, I have the HO intake manifold with extra injectors mounted in each runner so that thay spray into the cylinders, and I have the SDS EIC (Extra Injector Controller) to control the injectors. I have the EIC box mounted inside the car and there's knobs that you turn to set when the extra injectors fire and how much fuel they add. I also have a AEM wideband A/F gauge and an EGT gauge to tune the fuel.

Now also, you mention keeping a stoich mixture. You only want the stoich 14.7:1 A/F mixture when the engine is not in boost. When in boost you want about 11.5-12.0 fuel mixture and to keep the EGT's around 1600°. Since the extra injectors and controller are my only fuel mods, the stock PCM program, stock injectors, fuel pump, pressure regulator, etc. all still remain and still run the engine when the turbo is not spooled. So just driving around not in boost, I have a constant 14.7:1 A/F mixture and the drivability is perfectly stock. When the turbo spools and produces boost is when the extra injectors add more fuel. All I did was turn the knob on the EIC 'til I had a 11.7:1 A/F ratio and 1600° EGT's all the way through redline. Tuning took all of 15 minutes of driving around, looking at the gauges and turning a knob...pretty damn easy if you ask me.

When I swap the new engine, I'll be parting out some of the parts from the 2.4, but not everything since I'll still need some of the parts.

[MixtapeMessiah]

Let us know whats for sale, Ill scrap some money together right quick

[Spilner521]

It won't be for a little while.

[DOHC_tuner]

Originally Posted by Spilner521

It won't be for a little while.

thankz 4 your response, thats a smart setup using a knob control module to add the extra fuel when needed. I like your setup because of the fact you dont need to reflash the PCM to tune the A/F permanetly and all you do is turn a knob, COOL, helps save gas uh? well iam looking 2 put down some money to begin my turbo setup, but first I want to install the 2.3 high output maninfold, intake and exhaust camshafts, smaller pulleys, and then setup up the boost levels. Your setup starts 2 sound clearer now that u explained it but where and how much was that customed exhaust manifold to hold the turbo, and also where did u get the intercooler? REAL NICE JOB SPILNER but why the swap after you have created such a masterpiece

[Spilner521]

Originally Posted by DOHC_tuner

thankz 4 your response, thats a smart setup using a knob control module to add the extra fuel when needed. I like your setup because of the fact you dont need to reflash the PCM to tune the A/F permanetly and all you do is turn a knob, COOL, helps save gas uh? well iam looking 2 put down some money to begin my turbo setup, but first I want to install the 2.3 high output maninfold, intake and exhaust camshafts, smaller pulleys, and then setup up the boost levels. Your setup starts 2 sound clearer now that u explained it but where and how much was that customed exhaust manifold to hold the turbo, and also where did u get the intercooler? REAL NICE JOB SPILNER but why the swap after you have created such a masterpiece

Thanks for the compliments. What you have planned sounds like a good start before the turbo, and those mods will help make more power with boost too.

The turbo manifold you can find on eBay or in the classifieds section on Jbody.org. Just search for a Cavalier 2.4 turbo manifold and you find a couple.

The intercooler I got from Johnnyracecar.com. The guy makes them himself and they're really good quality, but for whatever reason he stopped making then temporarily and hasn't started again yet.

Why am I swapping you ask? Basically, I want more power. I'm swapping to the newer, more efficient, more boost friendly 2.2 Ecotec engine. I'm dropping in forged internals, Comp turbo cams, fabricating my own tubular exhaust manifold as well as intake manifold, using a GT3071 ball bearing turbo and when all is said and done it'll be pushing close to 400whp. On top of that, I'll also be using a newer '04 auto transmission that will be built to handle more than 500 ft./lbs. of torque, and it'll be so strong that the engine will break before I ever have to worry about the tranny. And you thought what I have now is a masterpiece...

[sorrowfulkiller]

xD Going well above and beyond the call of duty eh spilner?

[Spilner521]

Originally Posted by sorrowfulkiller

xD Going well above and beyond the call of duty eh spilner?

That's the only way to go.

I'll be able to pull on C6 'Vettes

[Cliff8928]

Originally Posted by Spilner521

That's the only way to go.

I'll be able to pull on C6 'Vettes

Get back to us when you can pull on a C6 Z06

[Spilner521]

I'm not sure If I want to push it that far. Trust me I'd really like to. The Z06 is rated at 505 and pushes around 440 to the rear wheels. I'll be pushing around 380 to the wheels. I don't know if I want to push any more without re-sleeving the engine and that's a little more work than I'd like to get into.

Who knows though, maybe the engine can take it. I'll let one of the high power Ecotec J-body guys push that much first to see if it can be done on a stock block. I'd be getting towards the limit of the turbo though, so I'd need to switch from the GT3071 to the 3076.

But seriously though...imagine seeing an Alero pull right away from a brand new Corvette...

[Cliff8928]

I know.. there would definitely be WTF look on the corvette driver's face. I think oldsman would just LOVE to see that.

I just gotta give ya a hard time with the Z06 thing.. heh. It would be awesome though.

[BlackJack]

I'd be willing to put money on it that even if you were able to put down enough HP to the wheels in excess of what the Z06 is rated for, you'd still have traction issues that would still hold you back.

[Spilner521]

Originally Posted by BlackJack

I'd be willing to put money on it that even if you were able to put down enough HP to the wheels in excess of what the Z06 is rated for, you'd still have traction issues that would still hold you back.

True, but that could be worked out with some sticky tires, the right suspension setup and gear dependant boost control, which is exactly what I have planned.

[BlackJack]

rock on.....and let me know how it went.

[Spilner521]

OK well I sent a message to Adam Hahn of Hahn Racecraft about the power levels in his Sunfire. They are pushing over 600hp and he said the stock sleeves held up perfectly fine well into 400whp and didn't show any signs of failing until 600hp was reached. Looks like a C6 Z06 'Vette is well within reach. Now I just have to make a decision on which turbo I'm going to get, either the GT3071 (450hp ball bearing turbo) or the GT3076 (500hp ball bearing turbo). Just figured I'd let anyone know that was paying attention.