so i just bougth the Alpine turbo kit from LewiSS he had this set up on his 2.4
as it stands it does not have an intercooler, but it has an upgraded Garret ball bearing turbo instead of the Borg Warner turbo the kit normally comes with. LewiSS was able to keep the temps about the same even without an intercooler due to the high effeciancy of the turbo and its low heat emission.
this is going to be my daily driver and i'm sure i will want an intercooler to keep those temps low. so i am lloking for info on a reasonably priced intercooler that will fit. if yo have one for sale let me know.
also to those who have the Alpine set up on their 2.2, they claim that they have a preprogrammed piggyback.
did this work without any additional tuning?
does anyone have it on an '07?
also how is daily driving with this setup?
any other info yo have wold be great. like i said i already bought this and will be installing a good bit of it myself with some help form mechanic friends. a somewhat local tuner will be helping with tune issues. and i have been in contact with Alpine to receive their tune that is used on the 2.2 with the SMT-6
i will take as many pics as possible and hope to lay down some good dyno numbers. this is NOT something that will happen overnight, i haven't even received the kit yet. so if yo are patient im sure you will enjoy the results!

 

Good luck! All of us 2.2's will be watching!

 

Well my "pretune" was rich, so be sure and already have a wideband installed, see about getting the tuning software so you can run down to a shop with a dyno and fine tune everything. I need back on the dyno cuz my tune is fine at WOT but seems rich as f#ck when just cruzin around town

 

You can use the Alpine intercooler for the old 2.2 kit. I believe Alpine sells it for $700. Or you can source your own plumbing and heat exchanger. John and I were talking about an air to water intercooler that would sit on top of the engine, but I don't know if he has started to design one or not. That would have a radiator in front and a pump like the SS/SC system. Same price as air to air, I believe.

You might want to try the set-up as-is first and see what the intake temps look like. After 2 hours on the dyno we saw a surface temp for the charge pipe of well under 200 degrees, about the same as the temp of the charge pipe of the older set-up with intercooler. Remember, without the intercooler the charge piping is only about 2 ft long, so the turbo lag is GREATLY reduced and drivability is much better. So you need to see real gains from the intercooler in heat efficiency to make it worth while.

One of the biggest reasons to use an intercooler is to be able to push the boost higher without detonation. However, this set-up is already pushing 9 psi, which for stock compression would be about all I'd go. As for detonation, one thing I never saw in the time I had it installed was a knock sensor trigger, meaning there was NO detonation going on (I have a Dashhawk which monitors this and gives the ability to report incidents and codes - if the '07 2.2 is supported by Dashhawk, I'd say that would be the best next investment you could make since you will be getting a boost and AFR gauge).

Just my 2 pennies worth...

Mine was the same on the 2.4. Safe, yes, but a bit too conservative. I concluded that's what was causing your and my mis-fires - it's running on the ragged edge of too rich to ignite the mixture.

*PLUGS!!!*

I just remembered something important: The plugs in the kit will be for a 2.4. If the '07 2.2 head has the same plugs as the previous .2.2's, these plugs will NOT work. When you get them, pull one of yours and make sure it looks EXACTLY like the NGK's. It must be a tapered seat (no metal washer) and the same length. The older 2.2's are shorter and have a metal washer instead of a taper seat.

 

awesome make and post some vids when you get it done. im gonna get that kit sometime next year!!!

 

okay so i need to keep an eye out for running rich.
SLowbalt19 what kind of AFR #'s are yo looking at?

also for the Dashawk, this should support my car since it is for all OBDII cars.
this seems like a good investment. they appear to go fro $309.00 new. i will look into one

how about an aeroforce gauge? this seems to do most of the same functions with the exception of some

 

good luck ..im not a buying a turbo kit tell i see there is tuning for the 2.4...and tell several ss/na have them install up and runnikng w/o a problem

 

they are using Wester's (tuning program) to tune the 2.4L SS

 

2.4 = e67 = supported by HPTuners... how come nobody's using that?

 

i was wondering about the HPTuners for the 2.4 unfortunately mine is a 2.2 but luckily its an 07 and should be supported soon.
really excited!

 

Well the kids broke my wideband while I was gone to pick up the car so all I have right now is a narrowband and when driving around to if you give it any gas at all besides a light pressure the gauge goes off the chart and you can feel the car sputter and also feels like it starts to miss fire.

 

good luck with the install, keep us updated

 

If you are using an SMT6, you'll have to change a few things and wire it a bit differently than the 05-06 2.2s. Your crank sensor I'm pretty sure is a 60-2 (58 teeth on 60 tooth spacing with 2 missing) and a hall sensor, similar to a 2.4 system.

HPTuners support I think is going to be released for that PCM in the next version, but I'm not 100% on that.

 

I was seeing numbers around 10:1.

I looked at both - the Dashhawk lets you build your own screens with whatever parameters you want. Plus it shows codes, and allows you to clear codes (except mine seems not to do that - I need to download the latest software). It also logs 90 seconds and lets you connect it to your laptop and do graphs. Plus it has built-in 0-60 and quarter mile (with 60 ft time and 1/8th mile) so you can get your own performance figures.

Check around. I think I got mine for closer to $250, can't remember for sure.

Are the pin-outs the same for the 2.4 and '07 2.2? If so, the wiring of the SMT-6 will be the same as for the 2.4. I agree with 60 with 2 missing - that's what the 2.4 was set to, as I recall.

 

hey LewiSS,
i got to talk to john over at Alpine.
he informed me that he feels the tune used on your 2.4 should be a VERY good start on my car since the changes on the 07 make it closer to the 2.4 he is also going to provide me with the cables for the SMT-6 and the most updated software for $35. he is a really nice guy, although he said since they just moved to a new facility he is very busy and would be able to talk further with me at a better time.
he was unsure whether the pin-outs were the same but said again that when he had a minute he would look into it.
as for the dashawk i am hoping that maybe a member will put one up for sale soon. i have seen several for sale over time.

 

They should be different pinouts being different ecms.

 

You might need to get the pin-outs from Chevy. Glad to hear John will be supporting you, and selling you the cable and software.

Make me an offer on my Dashhawk How about $200 and I'll throw it in the box with the rest of the stuff? I still have the original box, software and cable.

Thanks, Witt - I wasn't sure if they were just using the same ECU with different software. If Chevy doesn't start to get the hang of "parts count" they'll never get out of the red. Different parts for each model is killing them. Ford used the same EEC-IV computer for a big number of cars.

 

Actually a lot of cars share PCMs, 2.0 LSJ and Colorado/Canyons and 2.4 SS with the Z06 Corvette and now a bunch of others I believe.

The '07 2.2 cobalt and 2.4 Cobalt both use 32 bit PCMs with goofy VE tables but the 2.2 uses an E37 ECM and the 2.4 uses an E67 I believe.

 

sounds good to me!

 

I know that the 05-06 Cobalt SS/SC's all had 16bit processors, the 07's are now 32bit. Not to sure how that compares to the other models though.

 

yeah they are 32-bit

ha, im laughing at your sig

Hey, LewiSS what is the model of the Garrett turbo?
i have been reading throgh yor previous posts regarding the setup but have not fond this yet. also i was looking at the pictures yo took and wondering how you tapped the end of the fuel rail to add the fifth injector? and are yo including the 5th injector? if so what size injector is it?

 

its a 60lb hr injector and it taps into the fuel rail testing port

 

A few posts back I noted that I didn't pick up the turbo map for that turbo. Ask John at Alpine if he would be so kind as to send you the sheet. That would tell you the specs. I'm not sure of the model and trim - John picked it specifically for the non-intercooled installation (although it will work fine with an intercooler) for quick spool-up and low turbo lag. I believe he hit it spot on.

OK, I'll pull it off the column and pack it up also! I'll try to remember to take a pic of my installation for you - it worked out simple and clean, and is real easy to read (although it blocks the view to some idiot lights).

Yep, that's right. All you have to do is pull the schrader valve out of the test port that's already in the fuel rail (that's the valve stem thingy inside the test port). Then screw on the line. Simple. The 60lb injector (which will be included, BTW, along with its wiring harness and feed line - you'll get EVERYTHING that was on my car when it was boosted that was not part of the stock car, with the exception of the one oil fitting I have already mentioned) is certainly sufficient, since it's only adding additional fuel over and above the stock injectors to compensate for the additional flow under boost. Note that the SMT-6 intercepts the MAP sensor and clamps it so the stock computer never sees boost. However, the MAF certainly does see the additional flow, and part of the additionally needed fuel is added by it through the stock injectors.

One issue that has never been logged is whether this drives the stock injectors to 100 pecent duty cycle. I believe it would, since they're right on the edge under naturally aspirated WOT. Therefore, the set-up would benefit from 2.0 injectors and the Cavi harness, and HPTuning toe stock computer to this. Then tune the SMT-6 for any additional fuel needed. Personally, I think with HPT and bigger primary injectors, the rich problem under non-WOT boost could be eliminated by tuning the SMT-6 to not provide additional fuel except at WOT. However, the SMT-6 would still be used to reduce timing under any boost condition, whether WOT or not (the timing change would be a pure factor of boost). I didn't have the time or resources to work this out, though.

 

i understand what yo mean about the injectors but since i have the 2.2 it is not yet supported by HPT. i do not however know what duty cycle my current fuel injectors run at, or whether they will be maxed out. once HPT supports my car im sure this will be a good option for me.
thanks again for the great deal on the dashawk!

does anyone know what percentage duty cycle the 2.2 fuel injectors are running at?

 

they can handle about 5psi then there maxed.. the 32's from a ss/sc could be used down the road after theres some tuning.. the stock injectors in there now will just work normally and the 5th injector will pick up the slack and add more fuel when needed to correct the a/f under boost