Needing some help as i dont have alot of knowledge in this area. Setup will be on an ap1, stock bottom end. Ip 3mm HG. Supertech valvetrain with dished valves. Purcell im.still undecided on what tb to run. I have a jason schmuck tubular twin scroll dual 38mm wg manifold. Looking for around 500whpish for now, but would like some room to grow w\o buying new turbo. I live in seTX. Been looking at precision 6262/6266, bw362/bw366, gt30r/gt35r. Also plan on gettin puddymod diff with 3.63 rear end. This car is more roll racing/street/occassional 1/4. Lookin for fast spool times,and good curves. Also,leanin more towards journal bearing stuff to save some $, unless i can snag a bb 4 a good price. Any help greatly appreciated. Need help on what a/r housing as well. Will be running a boost by gear setup too. Maybe a 5-20psi range, depending on what psi gets me 450-500whp

 

6262 is a good turbo the Bws366 is a big turbo. I'd say either a 5858 or a 6262

 

Ok thanks. Whats the power range of the 58 and im assuming it spools up faster then the 62

 

The 62mm Borg would be a good choice for your goals. It would leave plenty of room for more power with e85 or race gas.

 

From what I have read the 5858 spools like a 30r and the 6262 lIke a 35r but I could be wrong

 

5858 is for close to 600hp while the 6262 is for 700hp. This is off the Evo forum since I used to own an evo.

 

In the same boat! Lookin at the BW s300sx as well. I know they have bigger housing nd I'll be running on a bottom mount also

 

I just installed a bw s200sx fmw made 595whp 420tq on e85 with a pfab elt Mani. Around 22psi

 

The S200SX FMW and S362 are great choices. The FMW will spool quicker but cost more. The 362 is the opposite and has more power potential so you have room to grow.

What type of fuel will you be running?

 

Thanks for all the input.will be running 93. But already debating on running aem's boost triggered meth kit for safety reasons,and i figure when i decide in the future to make more power, running meth and 93 will get me there,nearest e85 is like 45 min from me...so not goin that route,and really not wantin to run race gas either. Well, not until the car turns essentially into a toy. : ) then, race gas


And can somebody better explain the correlation between a/r sizing to exhaust side wheel to compressor side wheel. Is it the bigger the a/r housing,the faster the turbo will spool?


Been lookin... thinkin of going with precision sc6262sp billet. Looks like they go for $1074. Is that the going rate? Or somebody here know a good place to pick 1 up for less