Hey everyone I've been away from the forums lately, and I'm curious on thats if there is anybody putting turbo kits on their 2.4SS?? Well let me know

 

My turbo is in, look in the general section for my thread

 

My car is at Alpine. As of this afternoon, the exshaust manifold was in, the turbo was hung, and the oil return line had been tapped in and installed. The downpipe is sitting in place ready to be bolted up. Heat shield sound deadening on firewall re-covered with high-temp reflective material and heat shielding added to heater hose (the Alpine kit is nothing if not thorough).

Everyone had to quit early for different things (it IS Saturday) and will hit it again tomorrow. Still to do: complete the down pipe install, install oil feed line (doesn't require any drilling/tapping), install pressure tube and intake "hat," and modify the GMPP Intake to feed the turbo. Then, final round, install the electronics (SMP-6) and tune on the Alpine dyno.

Expected completion: tomorrow, Sunday 15th at the earliest, Monday 16th at the latest.

Obviously, I'll post pics and results.

 

well i think all the 2.2 turbos are blowing up?

 

thats the hawtness.. lol pics and numbers or ban!!!! and the 2.2s are blowing because of incorrect tuning i suspect

 

The one that exploded the manifold was because the line to the boost controller came off, and the system went to 20 PSI. In fact, the Alpine tuning solution probably saved the engine under those conditions, preventing the overboost condition from destroying pistons. The manifold let go before anything else was damaged, but until it exploded the SMT-6 managed to add fuel and reduce timing to prevent further nasties. This could have hapened to any installation, even stock.

 

oh ok well that could be it too hehe it was just an assumption cuz of the lack of good full standalone tuning for the 2.2, granted their engines aren't made to take boost at all. the 2.4 can a bit but unless you're upgrading some internals nothing besides the ss/sc or RL is ready for it. if i understand correctly at least

 

Why don't you get a real tuning solution and have alpine use HPT for a real solid tune rather then SMT-6. At least get it done right.

NO I AM NOT FLAMING THE SMT-6 it just makes sense to use a better tool if you have real tuning capability.

 

hey lewi how is that turbo gonna work w/ the gmpp intake? i was thinking about getting the intake installed on mine, but i plan on turboing in the future. also what about the gmpp exhaust?

 

When someone comes up with a tune with HPTune that proves to me it's possible to get the stock ECU to compensate for boost by adding additional fuel and reducing timing incrementally based on boost pressure, without throwing codes, then I'll consider HPTune. Tuning is one thing. But turbo boost requires changes to fuel and timing that I'm not convinced the stock ECU and sensors are capable of. I may be wrong, but I'm not inclined to spend the next few months trying to be a pioneer on this when Alpine has a proven solution. The SMT-6 is designed to read boost (through its own 2-bar MAP sensor) and add fuel and reduce timing accordingly. That's what it was designed to do.

I'd love for someone to make HPTune work with a turbo. It won't be me, however, but I might pay for a proven solution if someone else gets this worked out.

We're using the air box top and filter (especially since my GMPP intake is set up as ram air through the hood, and we want to make sure that is still part of the intake system). We will also use the SS tube, or at least part of it. Everything else will be scrapped (but that's only the intake hat, some rubber connectors and some clamps).

The GMPP exhaust should provide even more HP with the turbo than without. That is, if you had a turbo and a stock exhaust, and put on a free-flow exhaust, the added efficiency usually makes more HP than the exhaust would have on a naturally-aspirated engine. Not by much, but still...

I do expect the turbo to further quiet what is already a pretty quiet aftermarket exhaust. It should be real stealthy!

 

well from what ive heard...provided everything goes right .....that smt-6 will be spanking your ass...wether its a shitty tuning solution OR a good one

 

Are you saying that, in your opinion, the SMT-6 is GOOD or BAD?

 

to each there own but good luck making serious power off something that cannot accuratlely get as close of a tune as HPT could assuming you spend the extra man hours perfecting it.

 

I have no intention of making "serious power" (if by that you mean the magic 300 WHP that everyone seems so obsessed with on this board). I want 50-75 more lb ft of torque than stock for street driving. I really don't care what the HP is. This car won't be raced. If I wanted to drag race I will spend $10K on a cheap Nova and a built 454 and run 12's.

So I take it you've programmed both the SMT-6 and used HPTune to work out a flawless tune for a 2.4 turbo (one that doesn't throw codes and melt pistons), and fully understand the capabilities of both. If so, please share your knowledge of HPTune. If not, I assume you're speaking from other people's posts who are equally clueless.

Until I see some real answers, I'll stick with the only solution that I've personally seen work without CELs.

 

I would like to see this work properly and increased horses. If all goes good I want to know how much $$$ it was becasue i got 4,000 burning a hole in my pocket

 

Your still gonna get a CEL but happy tuning

 

just b/c there isnt a CEL doesnt mean theres not a problem!!

 

i disagree.. yes the 2.2 has a problem with tuning but thats not to blame on the engine internals. yes its not build for high boost but it will still be able to take low boost i.e. 7-8psi. it may not have the best internals compared to the 2.4 or 2.0 but its not a honda...

i have to agree with LewiSS on the SMT-6. hence the reason why i am waiting for an actual tuning program to come out. just like i dont like to use a gameshark on my videogames. its not the wrong way to do things but im sure you understand

 

Not after the tuning is finished.

And just because you get a CEL it doesn't necessarily mean there IS a problem. OBDII makes the computer very picky and prone to CELs for nothing. The proof of a tune is in the AFR and no knock over all driving conditions.

Sounds like you DON'T want to use an SMT-6. That's the opposite of what I've been advocating. I don't think any amount of tuning will get a computer that wasn't designed to compensate for boost, that doesn't have the inputs (data, sensors) to deal with it to do a good job with a turbo. I believe you need either a different computer (a solution that is used on V-8's, but for various reasons is difficult with the Cobalt) or an additional computer that was designed specifically to deal with this issue. IOW, I want to use the SMT-6. I don't want a tuning solution that attempts to get the stock computer to do something it can't. If someone using HPTune does get a 2.4 turbo to run with no issues, no CELs and that's safe on the engine, then I will have to concede I may have made the wrong choice. This is turning into somewhat of a religious war. I strongly believe the stock computer cannot deal with boost no matter how much tuning is done. Others believe the stock computer can be safely tuned. We each have solid engineering and tuning reasons for our beliefs (not ust heresay from other people on the board who are pontificating with no actual knowledge or experience). For Celicacobalt's sake, I sincerely hope my engineering theory is wrong. However, I plan to go with what I've personally seen work, on a dyno, watching fuel and spark curves, seeing the AFRs, and NO CELS!

 

LewiSS. you sir are my hero. Keep up the good work.

 

Quoted for truth.

You sir, have done a lotta research.

 

Thanks to both. Yes, I've done a lot of research, and have over 20 years designing/modding turbo cars. Since I decided to put out hard-earned cash, I checked everything out and made my decision. The fact that Alpine is 2 blocks from where my wife works (which is 1.4 miles from our home) helped in the research department. But I already knew Alpine from their excellent Hyundai GT-V6 intercooled supercharger (which the SS/SC is almost a copy of) and their work with TRD.

 

well, we will see this week if the stock computer can be tuned to make this work, at least i hope...

 

And, again, I certainly do to! Wishing you all the best in getting that thing running! I'd rather have the 2nd successful turbo 2.4 if it means you get yours JUST RIGHT!

At this point, based on where they were at the end of Sunday, they could have mine ready Monday PM, or it could be Tuesday. I can't wait! And mine won't make as much power as yours, because this is a Stage 2 with about 5 PSI (won't know for sure until the tuning and seeing what it puts up with) and no intercooler. Next stage will be to design an air-to-water intercooler (Alpine has a lot of experience with those) and get one on mine, plus bumping the boost a bit and re-tuning. But for now, I'm looking forward to the Stage 2 working!

 

I agree. And as one of the first proponents of the Alpine kit, I am glad to see him get it in and hopefully running well to disprove the ones who glanced at a picture of the kit and said "ITS JUNK"..!!