I have a cammed lt1 right now, and just had a few questions. How does the sts kit stack up against other turbo kits? How does the kit work with a cammed engine like mine(cc 224/230 xe). Im starting to get into the boost scene and just was looking for some advice on the questions stated. Any advice, help, or snyde remarks would help. thnx for your time.

 

your cam sucks for a turbo.. the STS wont perform as well as a traditional kit with the same head unit, and doesnt have the potential as a traditional kit. there are lots of threads in this section about STS if you search, that will answer any question you might have.

 

A side thought to any mods that read this - perhaps we should gather all the best seperate posts that compare and convey the different turbo kits and make a "FAQ" of some sort and make it a sticky (and locked) to keep these questions and constant threads from coming up? There is the search function - but I'm starting to fear that the overwhelming plethera of useless threads of flaming will cause confusion and have people post anyway because they cant make sense of it all...

 

I suggest people that dont have any of their own experience with the STS refrain from criticizing it. Its amazing to me that guys are putting up big numbers with STS kit, and making very siilar numbers as Front mount kits. Most front mount kits use different size turbo (or turbos) then the STS kit. How about people start posting there hp/tq with what ever kit they are using and what size turbo and how much boost. That way we can start comparing rear mount versus front mount with a more subjective and comprable way.

 

I would tend to agree, but there is a lot of "play" in the numbers depending on other mods. I agree that a baseline would be nice, but the variance will be extreme considering what some people bring to the table. I picked up a mag at the store the other day and found an STS install in there. Very cool. I'm not for the kit, and I have my reasons against it, but thats just me. I wont say they dont make power, and I wont say it wont work.

With full lists of mods, output etc. Such a listing might be extremely wise. I will agree that I think it should exist. I just tend to think that waiting till next spring will bring more players to the field and give us even more to look at, but that should NOT be the topic of discussion. Power output is so extremely dependant on other variables besides the turbo setup (heads, cam, tune etc) that there's no way to simply compare them apples to apples. It'd be wonderful, sure, but not really feasable. Both make power, both work. An STS setup at 12psi on a 355 with good heads, tune, and a custom turbo cam will probably make more then a PTK@12psi on a 355 with stock heads and a bad tune and the stock cam. But comparing some things that WONT change - like for example the sound of an STS is different. The install process is different. Noting these things and contrasting the technical side away from output and the nitpicky physics might provide a good set of answers without starting flame wars. If they want to go into the nitty-gritty details, they should really delve into the search function and call the vendors/manufacturer's themselves. But again, I say the power outputs and nitty gritty details should be left out till we have enough members to really sit down and make a comprehensive list of different setups, different outputs, and what is capable of what.

 

I agree with some aspects. I dont think people posting their numbers is a bad thing, even if there isnt a big sample pool. People for awhile have been bashing the STS kit (I am not related to or even own an STS kit, but have seen results and driven in one), but as more and more people post the results there is less criticsm. People complain a rear mount will have lag, I noticed no noticeable lag over any other turbo car when I drove in it (full boost by 2800-3krpm). Again, there would need to be an apples to apples comparison, such as a ptk kit verse a STS kit, both with same mods and same model turbo. I just wanted to throw my original post out there to try and warn off the STS haters before this turned into a pile of junk thread.

Now, onto numbers. The STS kit with the base turbo (60-1?) makes on average 410rwhp/430rwtq on stockish LS1's w 4.5psi. Can anyone compare ay other kits with similar mods and turbo? If not, what do these other kits make for hp/tq with ~4.5-5psi?

As far as the poster is concerned, that cam will be less than desireable for a turbo. I am sure you would still see a nice gain in hp/tq with the turbo and that cam, but the potential would be diminished. I would strongly suggest using a more turbo"ish" cam.

 

STS works, and puts down good dyno numbers. If you look at their dyno curves, boost comes on more like it does in a supra or similar small displacement motor. I want boost to come on like it should with a 350+ cubic inch motor. And what seems like it is the case with many STS dynoes, all we know is the motor is "stockish". What does that mean? Boost will come on later, simple physics, look at how much more volume intake piping it has to fill before it reaches the manifold, and how much less energy the exhaust gas has (it has cooled off so much) once it gets back to the turbo to spool the turbo. just my thoughts.