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STS in Turbo & High Tech Perf and Sport Truck

 

I was interested in this kit at first, now I am having second thoughts. I bet its a great system for small boost (5-8#s) but, with no intercooler, how are the temperatures with the system pushing 15#s or so?

 

CC
We are tuned for 13psi with meth/water, yes you need some kind of cooling over 5-6psi, and our intake temps are around 120+- in our LS1. This is also in 90+ humid heat. A front mount could be added, we have been working on some ideas.

 

Yea, I was trying to think of how to mount an intercooler without messing up the neat engine bay with that setup. Hopefully all goes well with the ideas.

 

omg a guy in my area ran my friend's 03 Cobra (chip, pulley) with that setup and

Lets just say he pulled nasty on him

 

After you add the intercooler to the system you are back to pricing around the same as the www.proturbokit.com system, which is much better setup kit and will make TONS more HP then the STS kit without all the lag and meth.

Jose

 

JZ i have seen your arguments before about the STS system and don't want bring up what a search on STS can find, but the system has been putting down power relative to other FI kits at the same boost levels. Along with putting the power to the ground. We are in the 11's and looking for 10's as soon as the weather will allow us to get to the track. I just don't see where the TONS comes in? Those reviews posted are national reputable magazines and have good things to say along with every STS owner that has the kit.

 

First, comparable #'s to which kit, maybe a TTI kit which is not a good design itself....main reason why I sold mine. As for the #'s well you guys always seem to leave out the meth. injection when comparing #'s. Add meth. injection to any other system and you will get additional gains. Also the system can't make much more power then heads/cam without the meth or running race fuel. Also the lag is horrid for a big cube motor and small turbo. In ls1tech.com I posted a dyno sheet of a GT67 powered Supra to compare to a GT67 powered LS1 using the STS kit. They spooled almost identical, and we have 163 cubic inch advantage . Simple fact is, its a nice kit for playing around with turbocharging don't get me wrong, but when its time to get serious, the STS won't cut it. And when I mean tons, well, I'm talking big turbos, I have yet to see an STS car with a T76GTS, T88...etc . Also, the STS guys always seem to say lag is only 2500-3000, well yeah if you sit and quote when you see positive boost and run a small turbo, heck my supra spools at 2500 then with the first turbo..but that simply is not the case. Lag is measured by peak torque...not positive boost. Also if you would like to see the dyno sheets I spoke of...let me know.

jose

 

My LS1 with the STS makes full boost, not starting to see boost, by about 3100. untuned I made 412/451 @5psi

 

I dunno about the differences too much but from my friends car I would much rather do the turbo for $3000 something than do heads/cam for more $$ and modify my engine. Thing is sweeet

 

With a small enough turbo, sure you can spool up decently. That same turbo would spool almost instantly like a roots blower on a conventional setup.

Jose

 

was at the store the other day and noticed one of the import tuner mags has a big article on the STS system..........looks like word is spreading............if they start making kits for the ricers, they will take off like crazy.



that is something i always noticed also.

 

The main problems I see with the kit are first off they have no intercooler, yeah the meth injection, but i would rather have a air to air unit and have little to no trouble using it (ie filling it up with meth) Second, the way that turbos spool is mainly by heat not velocity (trust me I've gone to an automotive school and a garrett turbo designer said this himself), and with the the a/r and the exhaust necking down will create some heat, but not like it would right next to the motor, so spool will be less, and that is a proven fact. If the major auto companies could design the turbo away from the motor and eliminate lag, they would, but if you look at all factory turbocharged cars, you will see that they try to keep them as close as possible to the heat source (the motor). I'm not saying this is a bad setup, but no matter what they do they can't defy the laws of physics, I don't care who they are, so they will always be at a disadvantage. I commend them on coming up with a new interesting design, but to me and anyone who is seriously going to track a car with a big turbo, it won't work for us. Most people on the street however it would work fine.

 

It's cool for STS to be getting the press, but you have to remember magazines are little more than advertisements.

 

I commend them on coming up with a new interesting design, but to me and anyone who is seriously going to track a car with a big turbo, it won't work for us. Most people on the street however it would work fine.[/QUOTE]
I sell them and I agree. If you are wanting an all out track car then this may not be the best setup. But, it is a great value for a street kit and will make some impressive numbers. There are cars over 600hp with this kit w/o running big boost numbers. I should have some numbers for a 408 turbo motor soon.