Well, it's only been about ~150 miles and 2 days since the install, but the results are simply too good to keep from you guys.

I ordered the Stage II Cermaic Coated turbos with port/polished internals/wastegate as well as coated/ported headers. Then, from Upsolute, I ordered the Upsolute II programming.

After everything got bolted in, went through the break-in miles, and slowly ran in each boost level so that the ECU spent enough time in closed-loop to hone in on the AF ratios.

Kudos goes to Bill (BCS996TT) and Rene for theprogramming R&D, as it only took a few runs for the boost to be dialed in and stablized. In fact, only 6th gear at low revs needed a few runs due to the efficient spooling capabilities of these turbos. The other gears were rock solid. Straight out of the box, the ECU was flawless. I need to do some datalogging, but thus far, it doesn't appear to be running rich nor are there any knock, buckling, dips in power, etc. Butter smooth.

And boy did Kevin work his magic on these turbos. Despite the much higher flowing capacity, I can see 1.1 BAR under 3k rpm! The porting done by Kevin did two things... one, it made the wastegate (boost control) much more efficient and responsive... two, the exhaust flow is manipulated such that the energy is more concentrated and less turbulent, further adding to the efficiency of these turbos.

I had asked Kevin to set the wastegate conservatively, as I'd rather work my way up rather than trying to pull it back if overboosting. However, despite the current setting of only 1.1 BAR, the car seems to have a new-found attitude over the previous 1.0 BAR with the stock turbos. Attitude akin to a rottweiler barely being restrained at the end of a steel chain. More impressively, the car retains it's midrange swell to go along with the new-found top end rush. I can tell these turbos are highly efficient, and have a lot more juice in them. Talk about spool-crazy turbos. The car simply rips through the gears. As soon as I can get Kevin on the phone again, I'll be adjusting the wastegates to 1.2~1.3 BAR!

Additionally, these turbos are good for up to ~1.8 BAR and still be in the meat of the compressor map. So, if somebody cracks the tb code, you can really go to town. Yeah, rods are a weak point... but, if you can program a "scramble" setting (momentary controlled over-boost setting), it'd be worth a hoop and holler, lol. And I don't doubt that at low 3k rpms, these turbos will boost ~1.4BAR... I saw it initially before the ECU reeled it back. I was very careful to let off anytime I saw over 1.3BAR until the ECU learned the boost curve, which again, only happened in 6th gear at lower RPMs.... and only took a few runs to learn.

I'll have to get a hold of Shank to use one of his toys as a litmus. Previously, we were pretty close to even between my 1.0BAR stock-turbo'd setup and his SRT10. I'm curious how things will differ with my 1.1BAR with new turbos. I've gotta hurry before his Viper gets sent out for the 1000000 hp mod.

Oh yeah, btw, my home-brewed HKS SSBOV setup feels right at home with this new setup. I still lose no momentum between shifts, nor do I experience any CEL's (fingers crossed). Go figure... maybe it's an '01 thing. Not a bad trade-off for the lack of a glove-box I suppose.

I'm sure the question will come up, so I'll answer it now. The turbos were ~$2600 (+$500 core-exchange charge) fully optioned out with porting/polishing/coating/billet back-plate. The billet backing plate is only for future considerations of higher boost. The rest has been explained already. You can get the basic turbo for as low as ~$1600, though don't quote me on it... ask Kevin. Coated/ported headers were $1300.

The Upsolute was $150 + ship for the upgrade, as I had previously already purchased the initial Stage I ($500). If you went directly to the Stage II, it'd cost you $500. Again, verify with Rene. (The best $500 you'll ever spent on your car, whether it'd be Stage I or II). I also bought a gently used Fabspeed Loud for $1250... and boy is it loud... talk about one pissed-off sounding exhaust! Bullets... duck...

Since I was able to get $3200 shipped for my previous exhaust (which I loved, but was beyond its 600hp rating), all in all, this upgrade didn't really put too much of a dent in my finances.

Life is good...

I need to find some local guys to compare with... Dave... Tim... Shank... Lou... time for a gathering!

 

Is there a website that has info on this package anywhere?

What is your approximate hp and will you be dynoing it or is there a dyno available?

I heard they are making a stage III, is this true?

This sounds like the absolute best bang for the buck upgrade for the turbo. Good to hear that is works perfectly with the HKS bov setup as well.

 

Hey Stephen,

Thanks for the great write and congratulations on getting your setup done.

I'm sure this has been asked in the past and I and many others would appreciate if you could respond on the following question, "How much horsepower would this setup produce?

Many have asked Bill and Twinvipers but as yet there hasn't been a response, so could you clarify this.

Best of luck and enjoy your newly boosted beast.

 

Stephen,

Great write up! I knew you would love it just as much as I do!

It's absolutely awesome! I bet if you datalog and send the results to rene, he'll be able to fine tune it perfectly with your ported turbos for even more power.

Now I need to get the ported turbos, etc.! Kevin...are you reading this?!?!?!

Im still confused with the BOV issue. On my car, performance was terrible. Maybe it was a defective BOV? Never heard back from Akkurat, so Alex, if you're reading this, what happened?

Any chance you'll be in NY with the car? I'd love to compare our cars!

As for the dyno...there are no good shops that I know of that have a dynojet in the area that deal with Porsches. If someone in the NJ/NY/CT area can let me know of a good shop (dynojet), i'll set something up right away.

I do know of one import shop that has a dynojet, but they dont want to mess around with disconnecting the drive shaft, etc. I would rather not do it myself, but if all else fails, that might be my only choice.

 

Approx power is 600FWHP with my setup (even with GIAC IV).

StageIII is already out....no upsolute tuning avail as of now....

maybe i'll venture to test this setup?

 

Heya man, when we got back the kit we noticed that the BOV's screw/spring was faulty so that was why on that one We've changed things around on that set up now also....

 

Well Stephen, I am back in Chi-Town after a 3 week Post Hurricane(s) hiatus in Miami. Viper is being shipped tomrw night or Thursday Morn....so better to get to that closed circuit course w/me tonight.

 

I got a ride in StephenTi's 996 after he got this new turbos on. It's a MONSTER and I was gripping for my dear life. Insanity. I need one.

 

I believe Kevin has a site in the works... you can contact him at kmatwichuk@att.net

At this point, programming is the limitation. He can build you turbos to boost anything you want, but our TB-safeguard don't like anything over ~1.35... unless you go stand-alone ecu of course.

As I understand it, not all Porsche Turbos like venting to atm. My loves it, so go figure.

As far as best bang-for-buck... that's up to you to decide. This setup will hold its own against other setups costing 2~4X more. In fact, Bill's "basic" turbos (non-ported non-coated non-billet-backing-plate versions of mine) have previously proven themselves against the Stage IV already. It just depends on what you're looking for in your decision, that's all. To each his own...

Stephen

 

Kevin,

Thanks for being patient with my emails and phone calls. I've been around turbo cars a very long time, so I knew the importance of properly breaking-in the seals. Likewise, I've also tuned ECUs before, so I knew to spend as much time as possible in each quadrant for the ECU to learn closed-loop.

Throttle response despite the larger turbos is crisp. Not laggy at all like my Single Turbo Supra. Suffice to say, the car is a beast. Mid-range surge and top-end rush... what more can one ask for their turbo-charged car!

Thanks again, Kevin!

PS... sorry about that last VM... I made the call while walking my two dogs, and as your VM kicked in, they decided to tangle themselves all around me... hence, the semi-coherent phrasings...

*** Here's a quickie lesson regarding ECU fine-tuning for those of you interested... the ECU is always shooting for an AF ratio as programmed by the tuner(unless there's an overriding open-loop condition pre-programmed in). So, for a given load, RPM, boost, etc, the ECU needs to visit each set condition a few times to establish it's mappings... an initial program is in place, of course, but only through visiting each quadrant will the ECU be able to fine-tune it self. Hence, you want to take your time and slowly/methodically visit each RPM from low to high boost. Higher gears are preferrable so that more time is spent at each intersection of the variables. That is the best way to help your ECU fine-tune. ***

 

I don't like to speculate HP, so the honest answer is "I don't know". Proof is in the dyno, I always say, so I'll post it if I get a chance to dyno it. Once the ECU has fine-tuned itself at the present 1.1BAR, I'll set the wastegate to 1.2 to set free a few more horses.

 

BTW... thanks, Bill... for paving the way, and your fine "customer support"

 

Anytime Stephen! It's a blast having fun with these cars!

 

I wish we could figure out why my car does not run right. Bill came to NY last week with no luck. I am grateful he came, but my car still runs like crap. I need help !!!

 

The computer at the Porsche dealer showed no codes. I'll call Rene tomorrow.