Remote Turbo Mounting - Seen this?

[Mundgyver]

Ok here we go. A friend of mine came across a site, granted it is for regular cars, but with an interesting twist. They are mounting the turbo behind the rear axle.



The idea of a remote mounted turbo has some merit. I have enclosed the following links for your porusal and feedback.



Behind the alxe



http://www.ststurbo.com/inc/iview/264?idx=7&p=1151



http://www.ststurbo.com/inc/iview/264?idx=9&p=8614



Install pics



http://www.ststurbo.com/camaro_install_pics



Home page



http://www.ststurbo.com/lt1_camaro_kits



So what do you guys think of this idea. I would think that for those running twins, this might offer some relief under the hood for fabrication.

 

[Steve St.Laurent]

Can you say lag? Mounting a turbo that far back would make for an awful lot of plumbing on both sides of the turbo which mean a lot of air space to pressurize thus causing lots of lag.

 

[SRadke]

Not just lag but friction loss, and huge potential for turbo bark. This seems much more realistic in the low boost application of ricers.



-Scott

 

[RustyJC]

1. EXTREME turbo lag.



2. Exhaust piping drive energy losses, plus the entire exhaust system back to the turbo would be exposed to turbo drive pressure and temperature.



3. Oil supply and (especially) drain - the lube oil drain would have to be pumped back uphill to the engine with a scavenge pump arrangement. Added cost and complexity.



4. Thermal shock and deterioration from exposure to water, salt, etc.



5. Forget using an exhaust brake.



Bottom right hand corner - I don't think so!



Rusty

 

[Mundgyver]

My friend who showed this to me, drives Buick Turbos. Both he and I had the same thoughts. Thats why I posted it to see what kind of feed back we would get.



Their site advertises no "LAG", but then again they are looking to sell these things. I suppose if you were not concerned with LAG, something like this or similar would be ok.



But then I don't think I would want to have a turbo that close to the gas tank either

 

[illflem]

Where do you put the air filter, in the trunk?

 

[Mundgyver]

I looks like it goes up in the rear fender void behind the rear wheel.

 

[MCummings]

I have video of a Cmamaro using this turbo. Somewhat of a large file, and kinda boring after the first 5-10 seconds. E-mail me, or PM me.



Merrick

 

[drees1]

Is the only advantage of this because there is no room in the engine compartment? 1100 deg F pipe under the vehicle is mighty hot. Don't park in the tall grass! Lag, yes. But worse how would you plumb a divided housing? Not possible, or certainly not practical. The pulse manifold with the divided housing is still king for quick spool up and wide map higher boost.

 

[Peter Campbell]

The turbo's on our standby diesels are also plumbed. The exhaust pipe from the last pair of cylinders is rather far away( 14 feet or so). No lag concerns ( its a generator). And even on that engine the exhaust system is well insulated to keep from loosing driving force (temperature and volume flowrate are tied with a constant mass flow rate). Without a good insulation of the drive pipe it would loose efficiency. If there is no room in the engine compatrment move the firewall- get something for all that effort. There is a good reason the turbo is bolted to the manifold and the intakes are plumbed- the drive head is the exhaust manifold.

 

[Will24]

I thought the whole idea of a turbocharger was to mount it near the hot, high flowing exhaust gases for maximum efficiency, wouldn't you lose pretty much ALL heat in that long plumbing run? it's kinda like an exhaust intercooler, isn't it?\





-Will