Please check this comp map
 

it's BW s200.

Can I reach 400 whp with this?
also which back side housing should I get for fast spool?

http://www.timsturbos.com/images/S200M.jpg

I guess nobody use this.
thanks

No, you won't hit 400 with this.

Looks a bit small to me.

Why don't you check out my turbo to see if it will work for you. I made about 405 rwhp at about 14 PSI.

Compressor: 60-1
Compressor Cover: 0.70 A/R "T04S"
Turbine Trim: P
Turbine Housing: 1.00 A/R (you might also like the 0.84 for a little faster spool)

This turbo is not the shiny brand new one, but it's also pretty cheap :)

There are several other good picks in the 400 rwhp range, so I'm sure some other people will make some suggestions.

I have a 62-1, just slightly bigger than Wargasm's. When Steve Kan tuned it, he said it was good to about 400 rwhp on pump gas at 15-16 psi.

Apexi RX-6 could be pretty good for your power goals, and I hear it spools really quickly.

for 400 rear wheel rotary hp you are looking for a minimum of 53 pounds per minute of air.

the turbo you mention is a mismatch. at one bar it will do 49 pounds and make 375. to get 55 pounds of air you need a 3.6 pressure ratio which is 37 psi! that's way too much stress for the ponies.

the RX6 is a great mid hp turbo for the fd but it will probably fall short for 400 rwhp.

i suggest you check the GT3574 from Aspec as an option. there are others as mentioned above.

howard coleman

thanks.
I just keep hearing good thing about BW turbos specialy s300.
but I guess I have to look around again.

wargasm I thought you selling the whole kit.
I'll check it out again.

Well... how "good" a turbo is will be evident in its compressor map. It's just a method to pack more air into your engine to allow for more combustion. A glorified air pump. Of course, durability is something that will not be shown on a compressor map, so for that you will need real world experience.