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Another Sick Supra...with THREEE turbos..pics


slownrusty

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lol this car is OLD!!! been around the supra commuinty for i dunno how long.

it was one of those things to do to just do it..

lol.. look how many miles are on that thing :)

 

mike

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3 turbos? talk about overkill! why have 3 when you can just use 1 big one...

 

It has to do with spool-up time! The larger the turbo, the longer it takes to spool-up (more rotating mass).

 

Also, maybe I'm just getting old and feable, but I only see two turbo units in the pic. Is the third one burried or nonexistsant?

 

OK, I'm guessing the two visable units feed a third unit near the stock location.

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It has to do with spool-up time! The larger the turbo' date=' the longer it takes to spool-up (more rotating mass).

 

Also, maybe I'm just getting old and feable, but I only see two turbo units in the pic. Is the third one burried or nonexistsant?

 

OK, I'm guessing the two visable units feed a third unit near the stock location.[/quote']That's not always true, as a matter of fact it's rarely true. Two turbos can take longer to spool than one because each one has half the exhaust flow. You would need twins with 1/4 the inertia of the single to spool in the same time. Yeah, I didn't think I was the only one who only saw two turbos under the hood.

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That's not always true, as a matter of fact it's rarely true. Two turbos can take longer to spool than one because each one has half the exhaust flow. You would need twins with 1/4 the inertia of the single to spool in the same time. Yeah, I didn't think I was the only one who only saw two turbos under the hood.

 

I don't think you understood my responce. I was not speaking of the system on the supera, but about the spool-up time difference between a single large turbo vs a single small turbo unit. In this case I believe I am correct and my responce is very true!! Anyone wish to add to this?

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if you harness the exhaust gases correctly, it will spool a large single turbo faster then 2 or even 3 turbos. it all really depends on the setup. You could use 2 turbos parallel, each using 1/2 of the exhaust, but they can take longer to spool if they are too large and if they're too small they will "weez out" at higher rpms. You can use 2 turbos in series, one small to spool the larger, you can get a fast spool. But if you route both sides of the exhaust into a collector to spool one large turbo which will spool the same, if not faster, then 2 or 3 turbos with a better high end.

 

it's all relative

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