First off I would recommend to you to do a little search in here. There is tons of information flying around
For 600-700 hp there is almost only the single way to go. Stock twins are maxxed out at around 450-500FWHP..And at this power stage there is no need for big twins.
So a GT35 or GT40 etc. would be the way to go for you.

Hope that helps.

 

front wheel drive supra? hah....

to answer the original question, think of it this way, two small turbos, vs one thats bigger than the 2 little ones combined. its a common misconception for people who don't know much to think twins are better. if you want twins, look into that HKS kit. Singles have a lot of advantages such as easier maiteneance, and problem diagnosis and so on. hope this helps.

 

I think he's referring to flywheel hp with 'fwhp' not 'front wheel hp'

With modern turbocharger technology, there's a lot of very potent and very fast spooling singles. Twins are fun for bling factor but performance wise there isn't much, if anything, to be gained by big twins vs a larger single.

 

i've only seen fwhp as front wheel hp, and if there not measuring the hp at the wheels, its at the crank....

 

In europe it's frequently referred to as 'flywheel hp' and abbreviated as 'fwhp' which of course makes it very confusing to us.

But since the user who posted it is in Germany, I'm certain that he meant it as flywheel hp.

 

There are a lot of threads with this same question. Try searching.

Here is one thread that can help you.

http://www.supraforums.com/forum/showthread.php?t=412769

 

For 600-700 HP range most people choose Single turbo over twin setup is cost and boost lag. I am sure ease of Installation and maintenance too.

 

THX Wreckless for clarifying this in my name
@vicious
First check my post count and then yours... So you better think before you post.THX I think I know what I have wrote in here..

 

Single turbo in 67mm size would be perfect for your power goals