Single Turbo or Twin Turbo ?

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06-03-2003, 02:29 PM

#21

1320AutoSports

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It all depends on the setup.

Wouldnt you figure that is why a lot of TT Supra people go a huge single turbo.. TONS of variations here..

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06-03-2003, 02:50 PM

#22

demon

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Quote:

Originally posted by 1320AutoSports
It all depends on the setup.

Wouldnt you figure that is why a lot of TT Supra people go a huge single turbo.. TONS of variations here..

The reason we do this is primarily due to simplicity and the fact there is almost no benefit to a twin setup over a well matched single. Some people run the HKS 2835 twins, but they are far laggier than a single producing the same power.

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06-04-2003, 12:30 AM

#23

joeshow750

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There is no way of simply "turning off" turbos - the only way would be to drive with less throttle or to stay out of certain rpm's at full throttle. Unfortunately the complexity of creating a sequential system is immense and you are unlikely to see any aftermarket option.

True, but if you have a big enough wastegate you can very little or possibly no boost at all throughout the rpm range.
Edit: One thing that should be discussed is mechanical effeciency. TT's have a lower rating due to the two shafts (2 turbos vs. 1, 2 sets of journal and thrust bearings) and therefore more friction...even though friction is pretty slight with modern day ball bearing turbos, at 150,000 rpms a piece there's going to be some loss.

Last edited by joeshow750; 06-04-2003 at 12:42 AM.