You have no clue. School yourself and cure that nescience.

People put on AFTERMARKET single turbo's b/c they are more effeicient than the STOCK twins. You can't compare ANY stock turbo to an aftermarket turbo.
If you want to compare to the stock FD twins, why not compare it to the only stcok FC single... Hmm, which makes more power and spools faster... FD twins or stock FC single? Easy answer.
Here's another reason why people buy aftermarket single turbos instead of aftermarket twins: They are cheap and simple.
With two turbos, you have twice the price. You have twice the plumbing.
That said, given equal peak power from equal boost levels and equal bearings (both ball bearing or both standard bearing), a pair of twin turbos will make MORE power down low, even when not run sequentially. ALWAYS. INARGUABLE.

 

you can find info at www.teamfc3s.org/forum/search. then type twin turbo, and scroll thru the links. OR scroll all the way up, click 'search', click 'advanced search', type 'twin turbo', move your mouse to the right and select '2nd Generation 86-91'

Make sure its not the for sale section tho

 

A sequential twin setup is far superior to a single setup. A sequential twin sytem spools up faster and is able to produce more power. Period.

At any given pressure level, 2 compressors are more effecient than 1. In addition to the fact that 2 smaller turbos (run in sequence) will spool fast and, ultimatly, produce more CFM than a large single. Even if the 2 small sequential turbos made the same CFM as a large single, they spool faster and have a far more usable power band.

An aftermarket sequential twin turbo system is the only way to go, because you could even go so far as to put BB turbos on it.

Did anyone here happen to see the November issuer of turbo?? There was a 1076 WHP Supra on the cover (probably the cleanest supra I've seen). It was running 2 HKS GT3240 dual ball bearing turbos (that's right, I said 2)--in parallel. So, if it was running the turbos in sequence, it would make the same power, but have less spool up time.

-edit-BTW the only reason not to have 2 turbos on your engine would be because you can't fit 3

 

This thread is a huge argument, no wonder its been going for so long with a nub title.

 

yes it is a nub title, but the question is valid.
I still maintain that a good twin setup will out perform in every aspect than an equally comparable single turbo setup.

 

Great thread guys. Closed.