Re: Why wouldn't this work? Turbos in series
 

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

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..........

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.......

Re: Why wouldn't this work? Turbos in series
 

lame waste of time.

Re: Why wouldn't this work? Turbos in series
 

^^ 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

Re: Why wouldn't this work? Turbos in series
 

It is completely un necessary to run 2 turbos on a 1.5 liter motor

Re: Why wouldn't this work? Turbos in series
 

it does on my 1.5l 12 valve motor. no boost until 4k and full boost isnt until 5k or so. not soon enough to get a good launch without electronics or nitrous.

-tony

Re: Why wouldn't this work? Turbos in series
 

Diesel's usually don't have BOV's. That BOV noise your hearing is the air brakes.

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.

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