Why wouldn't this work? Turbos in series
1.5 BAR
Joined: Oct 2004
Posts: 1,183
Re: Why wouldn't this work? Turbos in series
Originally Posted by baldur
Yeah the diesel systems are different, they're used to run high boost figures not normally possible with a single centrifugal compressor. (100psi ish)
1.5 BAR
Joined: Nov 2005
Posts: 710
Re: Why wouldn't this work? Turbos in series
how do you plan on controlling the boost to the little turbo because you're only going to be running on the exhaust that goes through the bigger turbo.....i would recirculate the WG dump into the piping BEFORE the littler turbo in order to give it full potential to boost..........
1.5 BAR
Joined: Nov 2005
Posts: 710
Re: Why wouldn't this work? Turbos in series
one thing...after seeing your pics of your choices....
1. Put the big turbo up top on the manifold
2. Use the exhaust from the big one and the recirc dump to spool the smaller one
3. Put the compressed air from the smaller turbo into the compressor side of the larger one
The reason is you're going to want the big turbo to have the access to the most exhaust as you can, so you're going to want it right on the manifold and let the littler one take the leftovers because its not going to take as long to spool it. Use the compressed air to feed the bigger one in order to reduce the amount of work the bigger turbo has to do. The only problem i see is that you're going to pull ONLY as much air as the little turbo will supply and once you're out of its efficiency range, then you're going to be eating a lot of hot air and possibly not enough air for the big turbos liking.......
1. Put the big turbo up top on the manifold
2. Use the exhaust from the big one and the recirc dump to spool the smaller one
3. Put the compressed air from the smaller turbo into the compressor side of the larger one
The reason is you're going to want the big turbo to have the access to the most exhaust as you can, so you're going to want it right on the manifold and let the littler one take the leftovers because its not going to take as long to spool it. Use the compressed air to feed the bigger one in order to reduce the amount of work the bigger turbo has to do. The only problem i see is that you're going to pull ONLY as much air as the little turbo will supply and once you're out of its efficiency range, then you're going to be eating a lot of hot air and possibly not enough air for the big turbos liking.......
Thread Starter
0.0 BAR
Joined: Dec 2005
Posts: 5
Re: Why wouldn't this work? Turbos in series
Originally Posted by Schister66
^^ Probably because it doesn't take a T3T4E 57 trim that long to spool anyway..........its a fun idea and would be kinda cool....practical....maybe
-tony
0.0 BAR
Joined: Jun 2003
Posts: 0
Re: Why wouldn't this work? Turbos in series
Originally Posted by 91efate
exactly just think of when you hear a rig you usually hear the turbos over anything and when they blowoff they sound like 4 turbos releasiing pressure=mad psi
Diesel's usually don't have BOV's. That BOV noise your hearing is the air brakes.
1.5 BAR
Joined: Aug 2003
Posts: 1,194
Re: Why wouldn't this work? Turbos in series
No that noise you're hearing on the tractor pullers is the compressor chatter. When the accelerator is released, the flow of exhaust pretty much stops. With high pressure in the charge pipes you are going to get surge when you stop the exhaust flow.
1.0 BAR
Joined: Mar 2006
Posts: 234
Re: Why wouldn't this work? Turbos in series
Id hate to ruin this little party but the thought of a sequential turbo'd 1.5L just sounds like overkill. why dont you just supercharge/turbo the damn thing and call it a night..? just a thought
