Interesting site!!

Mounts the turbo downstream in the exhaust under the vehicle. Not a lot of pics but interesting concept and reading.

http://www.ststurbo.com/home

 

That's a terribly inefficient way to turbocharge. You might as well run a belt driven supercharger as do that. "Denser exhaust gases drive the turbo more efficiently" - what a load of crap! A turbo runs off of heat and pressure, lose heat and you lose pressure at the same time. I love how one of the main benefits claimed is "aftermarket sound".

 

I am sure it works, though I don't know much about turbos, but how efficient could it be? You lose a lot of pressure when you get near the end of the tail pipe and then you have to push all that intake air back to the engine. Would it really be any cheaper than a traditional turbo?

As far as the heat that is generated I think their picture is exaggerated a little. I have used an infrared camera some and it looks as if they adjusted their camera to accentuate the turbo heat because everything else is black. If the camera had been adjusted properly you would should see more detail in the picture. I understand that the turbo gets hot but so do other components and they don't show up.

 

Veeerry interesting, but not for me. As already mentioned, there must be a huge loss of efficiency by the time the exhaust gasses reach the turbo. I suspect to counter this they must use a larger turbo. I would also liked to have seen where they mount the air cleaner. If it is also remotely mounted, imagine how soon the filter gets plugged. Also mentioned was the turbo oil system. Would like to know how the oil is circulated thru the system.
Also, all that long plumbing must also have big losses. Every bend in the pipe contributes to even more losses. Wonder if they oversize the pipes to compensate?
Wonder why the words Heath Robinson contraption come to mind?

 

Here is one of their dealers or something.

Do these pics look like an efficient turbo system?? LOL!!

http://www.jlturbo.com/eyecandy.htm

Makes me want to mount my BHAF behind my rear tire, has to be a boost gain there!

 

Did anyone check out the videos at jlturbos? The thing that I heard was a REAL funny sounding hiss. I thought it sounded terrible!!!

 

ugh, what a load of crap!

 

Those guys are a couple hours from me. I can tell you that they are for real and both the LS1 and LT1 put down pretty impressive numbers. The rear-mount turbo is kinda hokey (but it's a major pain to fit one under the hood of a 3rd or 4th gen camaro). A lot of people cry about the inefficiency of the system. Yeah, it's going to lose some heat and yeah it might lag a little, but still a turbo is better than no turbo, right?

You can't argue with an 11.88 @ 117mph on the stock heads, cam and only 8psi.

I must say that air filter location is terrible, though. Maybe they should "remote mount" it back up in the engine compartment.

What I can't believe is that they were actually awarded a patent.

 

I think you fellas are being too hard on these guys.I think its very creative and the amount of modifying to put a conventional turbo on a ls1 or lt1 or any other n.a. engine is a lot of work.so these guys got it figuered out. plus with an agressive enough turbine wheel you dont need that much thermal eficency and the long intake pipe acts as an intercooler.so for you guys who think its crap just try to quickly turbo an ls1 and do 11s at the track like these guys with the conventional turbo system. I say its WAY COOL.

 

jimjawz is right.. Remember this is on a gasser..7psi is a HUGE jump for them. Space is, well there is NO space on these cars. I'm sure the setup lends itself to amplifying the LAG issues..runner lengths, heat loss, chamber-runner length would work as a large chamber to be filled before pressure builds..using it as a cooler will occur but not nearly like our coolers..

Come to think of it, has anyone measured ALL the plumbing we have on our trucks? Just HOW much more do they use?

Bottom line, they have something that they have working..good luck to them to improve it!

 

EXACTLY. Even if the whole exhaust plumbing was thermal barrier coated, it's quite inefficient.

Yes, some turbo is better than none.

As for "these guys being real," well I suppose that a remote turbo is better than none at all. But a turbo done right is closer to a Lingenfelter or Callaway product.

It seems pretty hokey. But if it's the only possible way to turbocharge an engine, it's probably better than nothing.

jlh

 

Looks sweet to me especially if you consider it should add mileage and power = great idea. I always wanted to do something like that, but get nervous about what to do about the injection/carburation. cool article

 

I'd still mount the turbo as close as possible to the engine.

 

But that isn't really an option on one of those cars.

It can be done, though. For example:

I put a turbo on my friends '90 RS camaro. It entailed torching the shock tower out to fit a downpipe. Now, not too many people would be hip to this idea, right?

My brother turbo'd a '99 LS1 camaro. He had to use a shorter radiator and build a custom support for it to stand it upright (they are at about a 45degree angle stock) and get the necessary space. Oh, and we had to ditch the smog pump and A/C on both cars... Not too many people would be excited about that, either.

 

Interesting. I know on the vettes, you don't have to do as much as that. The turbos are mounted almost at the end of the headers and the piping runs back up through the front bumper into the intake tract. The intercoolers are placed in between the fog light opening behind the bumper.