fcrotory

iTrader: (20)

S4 t2 motor with fresh rebuild by myself.
9.4:1 rotors
S5 t2 rotor housings
RA classic 2mm seals
Stock s5 turbo
550/1600 injectors
Fmic
3" DP to 2 1/2 straight pipe
Haltech e6k
3 bar map
Sard fpr
Walbro 255
11lb flywheel

240hp and 216tq @8-10psi

Steve Kan did the tuning. Turbo dropped boost around 5500rpm. Im happy with the #s for now. When i upgrade turbos im looking to get about 350hp for my max goal. Here's a vid link. 4th gear pulls.

http://youtu.be/z5-1HPjz9FA

antman0408

iTrader: (2)

graph?

K-Tune

iTrader: (26)

That's too much noise for 240whp lol

Agreed..let's see the graph.

fcrotory

iTrader: (20)

This was my first dyno session and i totally forgot a thumb drive for saving my run files. So i didnt get to save all my dyno runs on file. But the shop gave me one computer printout of a 231hp and 209tq run. Its not far off of what i maxed out at. The curves should be pretty similar.



And ya, its loud lol. Its my drift car so i dont care how loud it is. The louder the better as far as im concerned. I would never tolerate that noise on a street car.

K-Tune

iTrader: (26)

Torque delivery seems a little...off... How soon do you see max boost?

fcrotory

iTrader: (20)

Well, i noticed after i got home from dyno session that the wastegate rod was just sitting there not connected the door arm. Idk how long it was disconnected. But i imagine i lost alot of spool up time with that be disconnected.

K-Tune

iTrader: (26)

It was probably off during the dyno run. Torque normally follows boost.

fcrotory

iTrader: (20)

It sucks cause i was using a stock s4 turbo with the twin scroll. It spooled pretty good.~2800rpm. I see boost now around 3-3200rpm with the rod hooked up ha.

sharingan 19

iTrader: (16)

something seems off, the s5 turbo (assuming its in the same condition) should spool at least as quickly as the s4.

Promising results nonetheless, I'm running a very similar setup, but have to finish rear-end/ brake upgrades before I can hit the dyno.

fcrotory

iTrader: (20)

Idk, my s4 turbo was on its last leg. It had horrible in and out play and up and down and smoked alot at idle. My s5 turbo is off a Jdm motor. Unknown mileage. I ported it to help the boost creep. It had normal shaft play. No in and out play. I think you can get the s4 to spool a tad quicker if you utilize the twin scroll on the manifold. Most people take the flapper door out of the manifold and run it like a s5. The s5 turbo has a bigger wastgate to help control boost better. I've only driven the car twice since tuned. From what i can tell. The s4 turbo spooled a little quicker. BUT!!! It could be cause the manifold to turbo gasket was destroyed so i tried to get away with not using one when i got tuned. So that could be why it spools alittle slow. It leaks and sounds like doo doo during engine deceleration. I was hoping for alittle more hp and tq to be honest. But i was on a time crunch and apparently had some bugs to work out. But this will do for now. Gt35 will get me to my power goal in the future.

sharingan 19

iTrader: (16)

ummm.....yea. A huge exhaust leak would tend to negatively affect spool.

GT35/9.4 rotors....I'd love to ride in that car.

fcrotory

iTrader: (20)

I fixed the manifold to turbo gasket with a 4 layer metal one. Didnt fix anything...turbo still makes a horrible sound under decel. Almost like the blades are rubbing the housing. Kinda sounds like little springs bashing around in my DP...It has 0 leaks now. I think the turbo is just not happy anymore. It boosts fine. But that horrid sounds just makes my car sound like crap. Guess i better start saving for that new turbo...ha.

wthdidusay82

iTrader: (15)

get a bnr rebuild/upgrade

Rotary > Pistons

fcrotory

iTrader: (20)

Nah, if i put money into a new turbo it will be a t4 setup.

wthdidusay82

iTrader: (15)

I'd like a nice upgrade like that but I don't think its in my price range.

maybe one day

Rotary > Pistons