Im looking to go na-t on my sc300 and looking for about 650rwhp. What size turbo would be required for a goal like this that wont lag too much but still has top end power

 

Agp 6265

10 char

 

The BW S366 seems to be the hotness nowadays.

 

go with a 88mm turbo
and a 100 shot of nos
and blow your floor pan off!

go with the s362. its upper limit is 700 whp

 

Need more info, what kind of fuel you planning on running? What engine management? I have a similar goal and am running e85, MS3x, 264 cams, and a 61mm Borg Warner. I shouldn't have any issues reaching that at 30psi.

Same numbers on 91 octane is a whole different story.

 

Yea I was planning on running e85 soon but for now I was goung to run 91 (California) aha and im not sure on the cam any advice would help also I was thinking about aem standalone unless there's a cheaper better option.

 

Cheaper and better is almost never an option together. It's either one or the other. Lol.

 

Lol that's true. But I want to go cheaper but still reliable because the aem is expensive as hell. Lol

 

Check out megasquirt. full standalone, 1/3rd the cost. Main problem with them is finding somebody comfortable tuning them, since they're not AEM, Haltech, or the other big ones. http://diyautotune.com

 

What Fuel? What trans? What camshafts?

 

Is it plug and play? Im not really into the wiring thing. I dont do electrical stuff. Aha

 

If you are not into wiring then you should stay far far far... very far away from a megasquirt unit.
aem ems v1 is probably what you want.

 

you might want to look into getting a shop to do your build if you arent good at wiring...
just saying youll want to do the CoP conversion, map install, iat install. just to name a few things that take wiring...

 

Since you're running 91 pump, you'll need a decent sized turbo to try and make 650whp, probably 66-67mm range minimum. If you were running better fuel (leaded/e85/etc) you'd be able to hit that with a smaller turbo in the 60mm range. Add to that our higher compression motors aren't going to be as friendly on 91 pump.

 

I was going to switch to e85 asap. Maybe the same time I do the turbo kit install.