ZCar Forum banner
Status
Not open for further replies.

Remote mounted turbo...

849 views 15 replies 12 participants last post by  Hybrid77Z  
#1 ·
Anybody here pick up a recent Turbo magazine and read this article? It's talking about remote-mounting a turbo to make it more efficient... Somebody came up with the idea of mounting a turbo almost where the muffler should go and routing the compressed air back up to the intake. I can see how this would make more boost with less effort...

the hot gas from your exhaust has time to expand in the pipe BEFORE it turns the turbine in your turbo... so back pressure is effectively reduced at the manifold, and a delay in back pressure buildup gives you a better hole-shot, and theoretically shouldn't last as long since there's more air to turn the turbine (since the exhaust has had time to expand, creating "more" air).

I thought it was a pretty cool idea, and looks pretty good since the turbo isn't hanging off the bottom of the manifolds, taking up a lot of engine compartment space.
 
Save
#2 ·
yea thats a pretty cool (like the exhaust temp. at the muffler is, comparied to the exhaust at the manifold) idea.
 
Save
#3 ·
all i know is that heat is energy and the farther away, the less heat, thus energy.
 
Save
#4 ·
Right, but a turbo's turbine doesn't rely specifically on heat energy for it to be turned, but on positive pressure in the exhaust. Heat has always been a sort of stumbling block for turbos... heck, it's what kills 'em.
 
Save
#5 ·
I can't see how this wouldn't have mega lag. And I think part of the energy that spins the turbo is -from- the exhaust gases expanding.

If this was a great idea, I can't imagine the formula 1 guys didn't discover this when they were running turbo cars. Seems like they tried everything else! Then again it could work great, I've never tried it or seen it.
 
Save
#6 ·
it might have more lag because of there is more space for exhaust gas to get pressureized before entering the turbo. you understand what im saying, its confusing me too. there was a vid a little while ago of a camero with that setup, but all it showed was him doing slow passbyes, so you couldnt tell it it had lots of power or not. there is a good amount of space where the muffler is to put a turbo and route pipes i think. you could get even more if you go fuel cell. lastly v8 z's can run dual 2.5" pipes underneath the car so the piping could work. i say it would be sweet.
 
Save
#7 ·
The company's name is Squires Turbo Systems... I believe their main focus is to conceal the turbo, and eliminate the need for an intercooler. The exhaust pipes they include in their kits are ceramic coated, and so are the intake pipes. This keeps the heat in the hot side, and transfers heat through the ceramic coating on the intake side, eliminating an IC. It's not quite as efficient as a typical turbo setup, but I suppose it's ideal for people with limited space, or sleepers.

I just noticed... the article is flawed, stating that the exhaust gas entering a normal turbo gets it's velocity from the cone-shaped neck machined into the flange leading into the turbo... Air is NOT like water, so it can't be sped up using piping techniques, otherwise a simple jet nozzle could be used as a "turbo".

I found a link to their website...
<http://www.ststurbo.com>
 
Save
#8 ·
NO if ands or buts about it....

The farther away from the motor, the LESS efficient a turbocharger will be.

AND

The more volume in the exhaust system before the turbine, the MORE lag you will have.
 
#10 ·
They made an additional 96 hp on just 5psi? That's bull sho sho. I've always heard 1 psi is equal to around 8hp. If they made nearly 100hp on 5 psi, there MUST have been other goodies they added at the same time. Like an underdrive pulley, better fuel pressure regulator, and all kinds of stuff to help make extra ponies.
 
#12 ·
well a lt1 has roughly double the displacement as a l28 so if 1 psi on a l28 euuals 10 hp than 1 psi on somthing twice as big equals 20 hp so 20 times 5 equals the magic 100 hp
 
Save
#13 ·
I have seen that turbo setup for a LS1. They removed the rear muffler and put the turbo there. Still legal since one turbo equals one muffler for exhaust standards. That is how the turbo neon gets away without a muffler.

96 hp at 5 psi sounds right for a LS1.

(5 + 14.7) / 14.7 = 1.340

1.340 x 300 hp (stock LSI hp) = 402 hp

402hp - 300 hp = 102 more hp.


FYI, 5 psi of a L28 is about 50 more hp.
 
#14 ·
There is no way moving the turbo way from the engine will improve efficiency - you will lose response. As the exhaust cools it slows down.
 
Save
#15 ·
Exactly. The exhaust gas right at the manifold is the best place to get the energy from. And yes, the air WILL speed up with a smaller diameter section of pipe or manifold. Just like using an air nozzle on the end of a hose from an air compressor.
If you put the turbo at the end of the exhaust system the air will have time to slow down and a lot of the heat energy in the gases will have been lost by the pipe releasing the heat. There will be just as much backpressure on the engine also.
 
#16 ·
It's all BS. you have TWO large pressure drops, one on he exhaust before reaching the turbo and one on the other side trying to push air back to the engine. Lots of lag and poor efficiency.

mark
 
Save
Status
Not open for further replies.
You have insufficient privileges to reply here.