TD06-20g vs BEP s256 vs BEP 50trim (old school)

[shidie6990]

Which one u will get if u target for 400hp on stock 6bolt?

Mod done:
FMIC Stainless steel intercooler piping, evo3 intercooler
Greddy type RS BOV
Turbosmart Ultragate 38mm, mounted in o2 housing
Turbosmart MBC Boost Tee
Custom O2 housing
Megasquirt-II
TDO5h from evo3
FIC 750cc
MLS 1.5mm
NGK Power cable
everything else is stock evo2 @ 7bolts


Next mod (I got all things and ready to go ):
Bullseye s256 DSM flange a/r.55
Rebuild stock 6bolt with King Bearings, ARP Headstud, Cometic HG, Balanceshaft remove, using back 2g head
Fidanza Flywheel
Ported evo manifold
Full 3inch exhaust system

I'm targeting 350-400hp on dynodynamic by 21psi (because my Megasquirt-II on board map sensor limit it )..
Which one will spool faster? which one have best useable power?
Actually I have s256 on my hand now, but i'm afraid at 21psi, s256 will not show its true power because some say this turbo need a lot of boost to shine.
There are 2 of my friends offer me a swap with their turbo (Greedy TDO6 20g and BEP TO4b 50 trim) and top up cash, with this cash I can go forged my internal and still I have 350-400hp capable turbo and a lot of boost. If I use s256, I just got stock 6bolt. Help me, I'm in big dilemma
BTW, all I want is below 400hp. So can DSM'er give me some suggestion?

p/s: Sorry for my bad English ;P

 

[welfle18]

2. BEP 50 trim was nice, also a little laggy at first to around 4000rpm, only got full boost in late 2nd gear and above. It came in alot more aggressive though but turbo didn't last long. .

Why didnt the turbo last long? Just curious was thinking about going with this turbo and would like to know what problems people have had with it. Not to hyjack the thread or anything. Just curious is all.

 

[shidie6990]

You wont know until you try. Aim for 11.6-11.7 AFR got 93 oct. You'll be around 400ish whp I'm thinking

hurmmm... I still waiting to get another one 6bolt block so the project will on hold until I get that, 6bolt block is very rare here in Malaysia, very hard to find, and the price is 2 times expensive than 7bolt I guess mr. Thilaksharma@jinKL know its better

I just found out that my petrol here, RON97 same as 93 octane.. so I hope I will meet my target 350-400 at wheel at 22psi..

I got one problem.. I have rebuilt 6bolt with new kings bearing and piston rings. Block looks ok but after install everything, two of the piston have a bit freeplay when at top.. I check with my hand and have some freeplay.. but when the piston at middle, its ok.. can I still use this block? or I need a rebore? problem is, here in my country, I will never find an 85.5mm/86mm stock 1g piston.. can I still use 85mm 1g piston but replaced larger piston ring?

 

[sketzshane]

Why didnt the turbo last long? Just curious was thinking about going with this turbo and would like to know what problems people have had with it. Not to hyjack the thread or anything. Just curious is all.

I think it was my fault. I was driving the car without a Air filter on the car. We took out honey combs, re tuned etc... but I believe that little stones or particles got the best since the comp. wheel got damaged after awhile, then couple months afterwards the smoking started etc... I also had couple boost spikes during the time so all of this could have contrributed yet the reason I mentioned it above was because I have put other turbos through hell (meaning worse than the mentioned above and they lasted yet U neva know maybe I got the deviant).

 

[shidie6990]

guys, what do you think about NPR piston? currently on tight budget for forged internal