TPC Racing 775Blitzkrieg our fastest 997TT yet!

[milou]

The point is you get 800hp with the GT2 turbos and some serious $$$, if i was going for over 700 i would bold a pair of Garetts and make 771whp

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[Casey@TPCRacing]

The purpose of this post is to show the difference in % that our 775Blitzkrieg makes over a stock 997TT.

This is a dyno graph that shows 3 different 997 Turbos. Our dynojet shows stock 997 Turbos to produce ~440 at the tire.

The Blue lines are a Stock car fresh off of the showroom floor. Notice how remarkably smooth the both the horsepower and torque curves are.

The Green lines are a car that came in with a generic mail order aftermarket flash.(THIS IS NOT OUR FLASH!)

The Red lines are from our 775Blitzkrieg Shop Car... As outlined in the first post of this thread. Notice the smooth and plateau like torque curve.

Keep in mind that the turbos we use are modified 997TT Turbos, not GT2 turbos that have been modified. Our turbos are 33% more efficient than GT2 Turbos.

Also I was doing some research and I saw that another well respected tuner has a dynosheet of a baseline 997TT making 438.179 WHP on an AWD Mustang Dyno, nearly identical to our 2wd Dynojet.

So, to recap: TPC's 775Blitzkrieg makes 52% more power than stock.

[997John]

Originally Posted by Casey@TPCRacing

Keep in mind that the turbos we use are modified 997TT Turbos, not GT2 turbos that have been modified. Our turbos are 33% more efficient than GT2 Turbos.

You said on your post # 11 those are GT2 turbos !!

[Casey@TPCRacing]

Originally Posted by Casey@TPCRacing

Sorry, These are modded VNTs... pretty much laid out the specs in the turbo section up above:

"Turbo Chargers:
At the heart of our 775B 997TT system are our modified VNT turbochargers. The 775B turbo chargers feature a 2.0mm larger compressor inducer than the stock GT2 and a 1.5mm larger exducer. TPC highly modified turbine section increases swallowing capacity to help create a plateau like torque band, ensuring tremendous power throughout the rev-range. This amounts to a 33% more efficient turbo than a factory GT2 unit!"

Most tuners dont disclose these kinds of numbers but we laid it out as we know it works.

Sorry for any confusion. The turbos are significantly different from the normal 997TT variety and even are different from the GT2 as stated above.

[TT Surgeon]

Looks geat, but are you saying that a bone stock 997tt lays down 440hp to the wheels?
That's about 50hp more than I have seen a stocker do on a 4wd dynodynamics dyno..
Doesn't seem like enough drive train loss, ie 20%, is factored in, am I reading your post right?

[Casey@TPCRacing]

yep, we see 440 and if you look at other companies baselines they report the same.

[eclou]

bit of a problem with your dyno's posted above regarding correction factors:

run #1 (blue) temp = 66.7 F, baro pressure = 29.77 in-Hg, humidity = 36% (vapor pressure = 0.238 in-Hg) your dyno correction factor should be 0.97 not 1.00
run #2 (green) temp = 90.02 F, baro pressure = 30.06 i-nHg, humidity = 7% (vapor pressure = 0.101 in-Hg) your dyno correction factor should be 0.98 not 1.01
run # 3 (red) temp = 84.04 F, baro pressure = 29.54 in-Hg, humidity = 26% (vapor pressure = 0.307 in-Hg) your dyno correction factor should be 1.00 not 1.03

[carlover08]

wow this is awsome ...........................................

[997John]

224hp more than stock, more than enough for me.

[milou]

What about that proto John?

[TT Surgeon]

Hmmm
All I'm saying is that when I had mine worked on/tuned at farnbacher-loles (also a good shop), a stock 08 997tt laid down 387 at the wheels with a DD dyno, I can't see how 440 is possible. That's like almost nil for drivetrain loss.

[997John]

Originally Posted by milou

What about that proto John?

So far so good. As you know about the human needs always looking for more and more, and thats what we are working for with Todd.

[GT RUS]

What is the price of this kit ???

[TTdude]

Originally Posted by eclou

bit of a problem with your dyno's posted above regarding correction factors:

run #1 (blue) temp = 66.7 F, baro pressure = 29.77 in-Hg, humidity = 36% (vapor pressure = 0.238 in-Hg) your dyno correction factor should be 0.97 not 1.00
run #2 (green) temp = 90.02 F, baro pressure = 30.06 i-nHg, humidity = 7% (vapor pressure = 0.101 in-Hg) your dyno correction factor should be 0.98 not 1.01
run # 3 (red) temp = 84.04 F, baro pressure = 29.54 in-Hg, humidity = 26% (vapor pressure = 0.307 in-Hg) your dyno correction factor should be 1.00 not 1.03

It's good to be accurate but the difference in correction factors seem minimal and probably outside experimental error anyhow. How many runs on the dyno does it take to get the best plot, 10? If would be interesting to plot averages with error bars and see what the curve looks like.

[Casey@TPCRacing]

Tons of emails and PMs regarding this. Currently 2 cars at the shop being upgraded. Pretty exciting! lots of projects at the shop currently!