jrod

how much are cost estimated to be for the setup. procharger kits for your smaller displacement engines are up there$. max boost is 24psi for that model; if i read prochargers info correctly. boost would be on tap instantly and the kits are very dependable, but for money like that you could have a nice tubo setup capable of alot more boost. more overall power and with the "right turbo" boost would still be there quickly. of course there are more things you could do if you wanted to get her to spool faster... IF A PROCHARGER SETUP WAS CHEAP ENOUGH I'D BE IN!

PolishPauL

You can just restrict boost in first gear with HPTuners. I think the TVS would be the best choice outta all of them. I probly wont get a new supercharger for another two to three years so i have some time to see what happens with all of these different options.

zinner

Gotta agree with WITT, the supercharger,manifold, intercooler setup is worth more being sold as a unit to help fund the project.

chevytech007

I think using the saab parts would be great but The cost wouldnt be the same. Just make an adaptor(it wont cost that much) and bolt your throttle body to it. No need to remove the intake manifold or anything for the cooler. I think it just makes it easier to install.

The intercooler on some systems cost big bucks!!
and using the factory intercooler allows for easy pipe installation.
Just my 2 cents

Mikey851

Not to mention, since centrifugals are notorious for lag (especially on such a small engine that can't hardly do 1 push up by itself) the less pipe you can use the better because longer piping causes a pressure drop. Not that it's that big of a deal but every little bit counts. There are alot of different ways to look at this.

Our approach to the Cobalt and how to drive it would have to change with this setup.

chevytech007

yeah that too

8cd03gro

Then run a diverter valve after the head unit or something, to limit the boost to say 19, then use a pulley that makes the highest amount of boost you can without overspinning the blower...that way you are not taking the engine to its limits power-wise and you won't have to worry about the pistons going, but you would have the benefits of a centri, making boost quicker than you would if you just ran a pulley that would give you 19 psi. It's complicated, but it can be done.

chevytech007

I think the top end pull will make you forget about any lag

elecblue06

iTrader: (1)

plus it's not really "lag" per-say as much as a gradual build till redline

Speed Mafia

best way to describe a prochargers power is...if you have ever been on a dirt/street bike and you are at a mid rpm in lets say 2nd gear and you hammer it...you know the feeling of the POWER BAND...yep you punch it and power is there but as the rpm goes up so does the power very aggressive and smooth...which in turns you get good traction through the whole rpm range.

Mikey851

Oh trust me guys, I love centrifugals and my friend had one on his G35 and the thing pulled. What I was talking about was not the "lag" of the procharger, but the "lag" of the engine. Our engine is designed to make power using boost and without it, it has a hard time getting up to speed.

As I mentioned earlier in the thread there are MANY things you could do to combat this fact and use the centri to it's top potential. For example what 8cd03gro said as far as using a diverter valve and smaller pulley; that is along the lines of what I'm talking about. There are ways to get around it's downfalls and use it's positives.

All my point was, if you simply strap the procharger on your car and do not make any other adjustment, not even increasing redline slightly, then you would be disappointed because you wouldn't be unleashing it's true power. See what I'm saying?

elecblue06

iTrader: (1)

Procharger FTW in my book

good dig traction and nice power throughout the whole power band

8cd03gro

you could go vortech too...probably a bit less power, but still a great product and better customer service. Plus vortech's usually tap the oil pan, and are somewhat more reliable. Lotsa ways to do this.

you won't get good dig traction haha. You are still gonna be making more torque than you are with the eaton, just a BIT later in the rpm range...you may hook for half a second but you will spin spin spin all the way through second unless you have major traction mods and some sticky tires. I'd advise anyone planning to switch to another form of forced induction to start working on their suspension big time right now.

elecblue06

iTrader: (1)

if you're gonna tap the oil pan why not just go turbo? thats what i've always wondered...

Mikey851

Yeah; because for one thing with this setup you will need to launch at a higher rpm so that you get some of the boost built up. I will say that's one thing I like about the centrifugal is that you don't need engine load (like on a turbo) to build boost, if it's spinning it's building boost.

bc3tech

ugh i was loathing your first post in here.
yes i was doing 10psi at about 3800 when i swapped the pulley. i put larger injectors in and wasn't able to get the SAFC to do what it needed to during partial throttle. i ended up with a rich detonation and blew the **** out of the engine.

i do not feel this is relevent to the reliability of a procharger or the 2.2 in any way - and, it's not. prior to this, i have a 1.5mi drive to work every day and wanted to feel that pull all the time - i boosted to 8-10psi at least once every single day on the onramp to the highway.
funny - i never spun all the way THROUGH a gear - i broke the tires loose at the top of the gears, when RPMs are highest and the procharger's boosting the most. you driven a procharged car before?

8cd03gro

you were driving a 2.2 with less whp than an ss/sc is making stock. I was talking about an ss/sc with a procharger running high teens/low 20's in boost...probably break the 300whp mark with that and spin the **** out of first an second. And why yes i have.

Speed Mafia

thats the game plan 300+

UPDATE: Mock up blower w/pulley has been ordered...should be here in a couple of days...more to come!

cobi

good to hear , hopefully this progresses a little better than some other "swapping" projects have.

Speed Mafia

We are shooting to have this done by the end of this month...

cobi

whaaaaaat??????? The entire project by the end of the month or just the mock up????? Have you guys thought about supporting mods as well if you decide to sell this as a kit??

Thats awesome if you can stay pretty close to that deadline, it will gain attention from a lot of people.

Speed Mafia

sorry i should of restated this...whole project done by the end of this month...again this depends on tuning and such but the kit itself should not take that long...so if there is others that are sweet at tuning then the kit will be available for purchase... and yes that would be the whole kit by the end of this month

Also what do you mean by supporting mods???

cobi

well mainly if it gets close to the 300hp mark and depending on how much boost things like pistons, head studs, head gasket, etc..... Those are just a few examples off the top of my head but you get the idea, mods that keep the new power safe.

8cd03gro

you will likely keep the stock internals longer etc with the centri than the roots. The centris deliver power extremely smoothly, unlike a turbo or a roots blower, where power just bursts in all at once. This causes less strain on the drivetrain at a given power level. Personally, i beleive it is turbo or centri all the way...

cobi

interesting, but depednding on what numbers this things puts out things like the head gasket and studs may be needed. Also I dont imagine centri's produce much heat especially not like the Heaton but what about cooling mods???

And regardless of how the power is delivered if the pistons are only rated for a certain hp they're only rated for a certain hp and getting anywhere over 300whp I'd def look at replacing them if it was my car, granted even though the problem seems to lie in the fuel system.

Just food for thought......