i want to turbo my Cobalt, but i got an LT.. a friend of mine who thinks he knows everything says ill blow my engine if i dont rebuild it before turboing it... any thoughts

also, should i just regular turbo it, or STS turbo it? ove always been a fan of STS but im just looking for some other opinions?

Car - > 2009 Cobalt LT 2.2L Ecotec

 

Unless it's done by a professional or someone who really knows their stuff, your friend is probably right. Our base models cannot take a lot of boost, they were never designed or built to see it.

One spike and you're pretty much cooked. I would build it, but as long as it's done properly, you can run about 100 hp through about 8 psi on the garrett alpha kit without any issues.

Just make sure you're willing to play the turbo game before you throw one on your DD.

As far as STS vs regular, I would prefer not to use the STS since the physics of it are not as efficient. I have seen good numbers from a couple people though. It's all preference, if you can route it all up front, do it. If not, STS might be right for you.

 

That's just a flat out lie... what are these physical properties that make the system so inefficient?!

 

do it....and then blow it and then forge the bitch...lol

 

im a big fan of STS turbos and i know a place in Montreal that does a good job installin them, there also one of the few certified dealers that are somewhat close to me, (its about a 13 hr drive lol)

 

you could piece together your own rear mount kit. they arent hard and if you can weld your 90 percent of the way there.

 

my buddy is a sts dealer and can cut good deals contact leadfootcustoms 724)-243-3037 thats his number at the shop his name is chaz and tell him sean told you to call

 

Air flows better under small distances. The longer it has to travel the more delay and less efficient it is.

Imagine having an exhaust system that extended 3x the normal length, would you buy it?

Common sense really, not saying it won't work. I've seen some good setups that did.

 

Do you realize the miniscule amount of flow efficiency differences there are when dealing with gases over a distance like this?! And people do extend there exhaust 3x times the normal length when on dyno's to vent the exhaust.... think it makes a huge difference in a dyno pull?

Let's talk about common sense then.... if there's such a huge difference in distance as you say would that not mean a cooler intake charge temperature? What about a cooler turbo since it's not placed under the hot engine bay? Ever wonder why STS kits can be installed without an IC?

 

the distance in piping isnt going to be much more than running all of the IC pipes.

 

What do you work for them or something?

I just wouldn't put it on my car, but feel free to encourage others to put it on theirs.

 

rrear mounted turbos are nice and cheap to do, less work need to be done, no expensive manifold, no cramped places, i considered doin this, but deiced to just use the hahn lsj kit...oh and distance isnt much, go to your car, put ur hand on the muffler, have someone turn it on, in a instant ur hand will be hit by exhaust gasses

 

only reason i wouldnt buy an sts turbo kit is because my track doesnt allow cars to race with a turbo located out of the immediate engine bay.

 

WTF!!! thats kinda...fucked up, what kind of track does that, i know all the tracks here dont care wtf is done to your car as long as you follow the time rules, you know the basics, roll cage if you runn faster than xx, helmet for xx, that sort of thing, they dont regulate where the turbo is at...that kinda take the point out of custimizing your car

 

who would install a turbo without an IC tho?

 

any one with a rear mount kit

 

you dont need a IC for low boost levels, and if the piping is being cooled as the air flows under the car :p you can see how it works, a IC isnt needed, but nice to have

 

its some kind of ihra rule i think.

 

lagggg gas has to travel to far

 

lag? people run STS kits dont report more lag than with any other system? check out the clips on yotube of those running the kit

http://www.youtube.com/watch?v=edVHO...eature=related

best video ivve seen of a STS system

http://www.youtube.com/watch?v=356LM...eature=related
^^ he took off from a stop, that turbo sure did spool up pretty damn quick

http://www.youtube.com/watch?v=p0ZfCCn4Fx4&NR=1

here's xcobalt05x STS set up

 

I mean, yeah it seems to work pretty well for most people.

It's just that it breaks the known rule in the turbo world: keep the piping as short as possible.

Some people cut holes in their frame to route charge piping in order to keep from making too much of a bend. I mean, I bet it works for minimal applications just fine. Just against the grain I guess.

 

yeah i know what u mean, im actually...i mean...anyway...i wanna see ics of your set up :P

 

Getting my intake manifold next week, and I'm going to try and use it NA until the rest comes in.

I'm going ahead and ordering the rest next week, I'm debating on going with the S20G with 5 psi actuator or just going with a plain ol' Garrett T3/T4 and just doing it all externally WG.

Motor won't be built until sometime in the spring, but I should have everything assembled and boosted within a month or so.

 

Look up STS on youtube and a guy does an interview with one of the STS guys. It will answer any STS related question you can think of.

 

favorite STS comercial, this is for us chevy guys, lol
sorry dodge fans

http://www.youtube.com/watch?v=yP-W1OzBvWo