Done and ready to ship now


sleepless,

The GT28's can flow more air as compared to the KKK 24's. They actually have a smaller and more efficent turbine wheel which significantly reduces turbo lag when compared to the K24's. The GT28 turbos are good for more than 720 HP.

 

Guys, if you started with a stock 993 turbo with no afternarket equipment, what upgrades would you guys do to get to the same performance level? IE a blank slate start.

 

What kind of wheels are on this car?

 

Interesting stuff about the ECU. Couple of questions:

1- Is this running on fixed boost (through the wastegates) or does the tuning have the capability for variable boost according to load/RPMs/density
2- It still has stock camshafts?

How is the car running, any performance figures out there?
Thanks

 

Nice work EVOMS.

Can you please post a dyno sheet of a pump fuel run? Does 650HP work out to something like 550WHP on your dyno?

No need for Twin Plug heads at this power level

 

nice work guys!

 

Attached is the dyno. In an ideal world I would have installed some different cams in this engine and perhaps installed a twin plug system. I think twin plug is great but not 100% needed at this point. There are so many ways to modify one of these engines and it all comes down to dollars, sense and application (intended use of the vehicle). We could have added $15K worth of other components to this build which would have had no affect on the final power. Every engine build is different and the final result was developed around the customers budget and built around the way he drives the car. This is a 100% purely street car and will not be driven on the track. If the scope of the project was more for the track, we would have recommended twin plug, nirosist rings, cams, additional oil cooling, titanium retainers, race valve springs, etc. Hope this helps!

 

Jean,

For this application I eliminated the OEM boost control functions. I am using an external electronic boost controller to operate the boost portion of the ECU. There are many different ways to control the boost in the factory ECU based on load, RPM, etc. I chose this route due to the easy operation and ability to change the boost settings from in the car.

Still running the stock cams timed different than stock specs.

 

Hellp Rob, I will send you a PM with the details. Thanks

 

That makes sense. It will be a fun street car.

Could you please post the GT650 dyno chart with the boost pressure plot?

 

That is the smartest way to go on the 993tt. Trying to control boost without a MAP sensor (like stock 993tt setup) is madness!

 

evoms u guys rock ..

 

WOW - love those wheels too

 

sick indeed! any idea of the costs involved in this upgrade? or is it one of those "if you have to ask, you can't fford it!" type of propositions?

 

looks very nice