Read for easy turbo

[dohcfiend]

I have just seen the light. a turbo system that can fit almost any car and can be put on with hand tools in about an afternoon.

i seen it on tv like 30 minutes ago and i was like why didn't i think of that.
anyway the turbo went on a ls1 camaro and it was placed in the back of the car. the turbo actually replaced the muffler.

all they did was put the turbo assy in place of the muffler, ran a tube to the intake in front of the car and an oil line to the turbo. it made 260 be4 and 405 after. and that wasn't even tuned.

i am sure the kit is expensive and all but that isn't the point the point is any1 with a tubing bender could build that kit if they found a donor turbo out of a junkyard.

what do you guys think of it?

[Guest]

RE: Read for easy turbo

Yup, seen it, don't like it...

Reason being efficiancy is lost, turbos, or rather the turbine needs heat in addition to exhaust flow, along that length of pipe, you will loose somewhere between 30% and 60% of the heat (average seems to be around 50%), so you must now use a smaller nozzle area for the turbine (than you would for a turbo on the same application with a traditional mounted turbo), which then creates a restriction, so it limits potential power right there.

Next comes the charge pipes, where do you run them? Usually beside the exhaust, since there usually isn't any other area, well, you start to heat the charge up even more now, due to radiant heat, from teh exhaust pipe. I've seen one guy who ran his charge pipe on the passeneger side, just inside the rocker panel. This was on a Cavalier, an '89 IIRC.

The biggest problem I have is next, oil system, yes, system, you now need a very good oil pump, electric, a sump tank mounted under the turbo, to catch the frothed oil, and allow it to become a liquid again, so that the pump can return oil back to the front, which is another issue, running the hoses, feed from the usual place (oil pressure sensor T, etc.), and also back to the engine. Anything under the car is vulnerable to rocks, bottoming out, road debris, road kill, etc, snag an oil line and you could lose both your turbo and your engine, due to lack of oil.
I know you're probably "what about a dedicated oil system for the turbo?" well that's been discussed and while it may work, it will not work efficiantly, or effectivly. If there was any advantage to a dedicated oil system for a turbo, racers would have them on thier cars, but if you look around you will see they install a conventional oiling system.

Then there is the idea of road debris, road kill, bottoming out, and water, ever splashed water on a really hot cast iron part? It generally cracks. Sheilds will only do so much to keep under car objects from hitting the turbo and related parts. Also the air filter, where is it?

If you can build a rear mount turbo system you can build a conventional turbo system, just as easy, probably even easier.

Check out STS Turbo, I think that's the name anyway. They have kits for different cars, and some pics too.

Overall Siskle give it a one thumb up, but only for creativity.

[StudlyCamaro]

RE: Read for easy turbo

100% agree with james, ive seen many of the STS turbo kits for the Z28's results, they make pretty damn good power for about 1/3 of the RPM between idle and redline, the rest is just like a NA car

and your air filter is going to be gettin hell anytime it rains

[dohcfiend]

RE: Read for easy turbo

actually i was thinking more z-34 where there aren't any turbo kits available. efficiency definately takes a hit. i was shooting for ease of installation.

[614streets]

RE: Read for easy turbo

I read on a website , cant remeber if it was hot rod or chevy high performance, car craft or gm igh performance but they dynoed a camaro or something with an ls1 and made huge numbers with a rear mounted turbo. Also there was a write up on how effecient it is.

Anyways heres some mag coverage http://www.ststurbo.com/magazine_articles.

[PlatinumZ34]

RE: Read for easy turbo

I have a movie of an LS1 with a rear mounted turbo doing a burnout the entire length of the quartermile. EXTREMELY fast car, and it sounds amazing. On a Z34 i think its a great idea. anything else, probably not...

If i can get a turbo from my dads work i'll do it, even if it ends up just being an altitude compensator, thats still .6 seconds i'd be gaining. (these are turbo's off of road graders, backhoes, bulldozers etc. so they're big (some are about the right size), and they're all Volvo) He said he could probably get me one, but it'd need a rebuild.

As far as the air filter... What makes its location any different from a CAI???

(for the record, a turbo is an altitude compensator, they are only called turbochargers if they add horsepower)

[Guest]

Re: RE: Read for easy turbo

(for the record, a turbo is an altitude compensator, they are only called turbochargers if they add horsepower)

I'm very confused abut this....I've always added HP when a turbo is added.

[StudlyCamaro]

RE: Read for easy turbo

a CAI's air filter is in front of the wheels, when driving in rain or dust your car kicks a lot of it up off the road.. with the filter that far back on the car it will take a beating quick

as for the LS1 Fbodies... they must have been built motors... ive read a few people's personal opinions after installing them and they were all very dissapointed


as for a huge turbo, you will will need a small hot side or it wont ever spool

[Jman]

Re: RE: Read for easy turbo

(for the record, a turbo is an altitude compensator, they are only called turbochargers if they add horsepower)

I'm very confused abut this....I've always added HP when a turbo is added.

Can you say you over-compensated for your altitude?

Just the thought of all the length of piping the exhaust has to travel through to get to the turbine, and the temp. of the exhaust gasses when it gets there, is enough do it for me. For comparison, try to blow a whistle at the end of a 13' pipe that is 2" in diameter.

[StudlyCamaro]

Re: RE: Read for easy turbo

Just the thought of all the length of piping the exhaust has to travel through to get to the turbine, and the temp. of the exhaust gasses when it gets there, is enough do it for me. For comparison, try to blow a whistle at the end of a 13' pipe that is 2" in diameter.

that is why STS uses a hot side compressor that is pretty damn small compared to the cold side, however when you do this you add a large restriction to the exhaust system... IMO its a waste of time, money and effort to rig up a remote mounted turbo kit

[614streets]

Re: RE: Read for easy turbo

(for the record, a turbo is an altitude compensator, they are only called turbochargers if they add horsepower)

I'm very confused abut this....I've always added HP when a turbo is added.

See his sig.

[PlatinumZ34]

RE: Re: RE: Read for easy turbo

From www.dictionary.com:
turbosupercharger: A supercharger that uses an exhaust-driven turbine to maintain air-intake pressure especially in high-altitude aircraft. Also called turbocharger.

In the car industry a Turbo is only called a turbo if it adds a great deal of horsepower. I realise you've never worked on or driven an excavator, but they are earth movers, just like bulldozers, graders, backhoes', skidsteers (or Bobcats if you also call your adjustable wrenches Crescent wrenches). They have around 1000 torque and 200 horsepower (excavators), their turbo's add very little horsepower (i believe the number was 1.5) until they are introduced into a high altitude environment, and then they are simply used to maintain power.

**edit** and this is for anyone who asks how a turbo can possibly help at higher altitudes, because altitude will not make one car faster than another, as we made sure aaron knew a few weeks ago:
from www.howstuffworks.com :
A turbocharger helps at high altitudes, where the air is less dense. Normal engines will experience reduced power at high altitudes because for each stroke of the piston, the engine will get a smaller mass of air. A turbocharged engine may also have reduced power, but the reduction will be less dramatic because the thinner air is easier for the turbocharger to pump.

[614streets]

RE: Re: RE: Read for easy turbo

No matter how you try to slice the terminology of what a turbo is classified as, as long as the engine is seeing more than normal volumetric effeciency its going to be able to use more fuel and make more power.

[LoominaZ34]

Back on topic, a turboCHARGER will work no better hot than cold, it's getting the same amount of air (molecules) eitherway, thus it will push the same amount of air either way. The only difference is volume which can be compensated by shrinking the a/r ratio on the hot side.

[oil pan 4]

Smaller housing = more restriction.