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-   -   single or twin? (http://www.toyota-supra.info/forums/mkiv-supra/16146-single-or-twin.html)

nathan ferguson 02-21-2010 08:57 PM

single or twin?
 
hi, just a general wonder... i know single turbo is better for top end performance and speed, but is a single or twin better as 'a turbo' cos i take it both have pro's and cons yet which is 'the better turbo' for a supra? i like how singles sound more, but which (both on a car with 800hp) would be 'better'? :confused:

thanks

nath :rofl: :rofl:

pwpanas 02-24-2010 03:39 AM

Quote:

Originally Posted by nathan ferguson (Post 79084)
hi, just a general wonder... i know single turbo is better for top end performance and speed, but is a single or twin better as 'a turbo' cos i take it both have pro's and cons yet which is 'the better turbo' for a supra? i like how singles sound more, but which (both on a car with 800hp) would be 'better'? :confused:

thanks

nath :rofl: :rofl:

A single turbo is not necessarily better for top end performance and speed. Where did you hear that?

The aftermarket single has two primary advantages over aftermarket (parallel) twins: 1) Cost. and 2) Reliability.


You might find these additional clarifications useful:
  • Every single-turbo Mkiv is always an aftermarket upgrade...whereas twins can either be stock or aftermarket.
  • Twins can be either sequential or parallel.
  • Most aftermarket twins are parallel.

nathan ferguson 02-24-2010 09:53 PM

oh, theres a vicious common beleif, you hear it on youtube for example a huge amount, turns you they're wrong then :gtfo:

whats the difference in cost between the single and twin (parallel)? and how much more reliable? thats weird because i knew it would be more reliable.. just makes sense.. one turbo over two XD :x:

and i know singles are aftermarket only, and only twins are available stock or aftermarket, but was just a general wonder and finding out jobbie.

thanks for the info :werd:


nath :rofl: :rofl:

pwpanas 02-24-2010 10:41 PM

Quote:

Originally Posted by nathan ferguson (Post 79224)
...whats the difference in cost between the single and twin (parallel)?...

The cost is almost double.
Quote:

Originally Posted by nathan ferguson (Post 79224)
...and how much more reliable? thats weird because i knew it would be more reliable.. just makes sense.. one turbo over two...

My *guess* is about twice as reliable. For example, let's say aftermarket twins are 99% reliable over any three year period. A single would probably be about 99.5% reliable over that period of time (0.5% failure rate for a single vs. 1.0% failure rate for twins).

nathan ferguson 02-26-2010 10:39 PM

! jesus lmao you know your stuff! :p :rofl: and thanks, for the info so essentially overall single is ever so slightly better as an all rounder?

thanks

nath :rofl: :rofl:

pwpanas 02-27-2010 02:00 PM

Quote:

Originally Posted by nathan ferguson (Post 79359)
! jesus lmao you know your stuff! :p :rofl: and thanks, for the info so essentially overall single is ever so slightly better as an all rounder?

thanks

nath :rofl: :rofl:

I wouldn't say slightly. Half the price ($5k USD vs $10k USD for the kit) makes a single a lot better than "slightly" imho... ;)

nathan ferguson 02-28-2010 12:59 AM

haha! well there is always that side of things, half the price does make a difference to how on the paper lasts! XD thanks again for the info, much appreciated :D

nath :rofl: :rofl:


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