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its like watching my build all over again, any way to add the banks gauge to a car already equipped with sport chrono? I wonder how a vent gauge would look.
its like watching my build all over again, any way to add the banks gauge to a car already equipped with sport chrono? I wonder how a vent gauge would look.
Yes, it actually makes it easier, you just remove the clock and replace it with out mount and banks gauge.
Can you explain what do u mean by Max vs peak whp gains after the tune? Also what the approximate hp conversion would be at the crank?
thanks
We have that written backwards but the data points are the same. Max should be the essentially the largest gain between the two runs, meaning you're making 101whp over stock at a certain RPM. The peak number is the highest overall number, so the top number is up 48whp over stock. The same applies to torque gains, one is the largest delta or increase and one is the largest absolute gain.
It seems Porsche underrates the base power. At the crankshaft, stock it makes roughly 430HP. With the M-Engineering tune it has 485HP at the crank. So basically just software gives you GTS power.
It's important to analyze the area under the curve both in HP and TQ. You can see the darker regions showing the gains.
Horsepower (WHP):
Once you are into the throttle and boost ramps, the power is quite obvious. It holds strong until about 6.5K rpms with huge gains over stock. This is common with turbocharged vehicles as increases to boost pressure can add torque/power pretty instantly. Up top the gains are not as dramatic because of the airflow restrictions in the stock intake/exhaust and the turbo geometry. To make more power up top, we'll need to increase airflow and reduce restriction. We'll do that through some bolt-ons and custom tuning here shortly. We'll also be doing the S/GTS (and Pure) turbochargers as well along in the build so will be able to compare the effect of turbo sizing. Torque (FT-LBS):
Here you can also see the massive increase to torque delivery which is what is making the power. This is a massive area under the curve! This is important because this is essentially a graph of "real world" feel. You're going to feel that huge increase in torque every time you push into the throttle. Most 992s will live in the 3-5K RPM range running around town and even having a little fun/joy with the car.
I wish I had a T! Just my opinion, but I think the T with the upgraded turbos is the ultimate value play in the 911 range.
We know theres alot of power potential in the base engine ..but...
What about suspension and handling? I cant imagine throwing some lowering springs on a base will match a T with the SPASM, torque vectoring and limited slip even if one was not to opt for rear axle steering on a T.
Im anxiously waiting for your results with the Bilstein coilovers. interested to see if those will pick up the deficit the base has over a SPASM c2S .
M-engineering did mention somewhere about programming an e-,limited slip as a potential idea....
We have that written backwards but the data points are the same. Max should be the essentially the largest gain between the two runs, meaning you're making 101whp over stock at a certain RPM. The peak number is the highest overall number, so the top number is up 48whp over stock. The same applies to torque gains, one is the largest delta or increase and one is the largest absolute gain.
It seems Porsche underrates the base power. At the crankshaft, stock it makes roughly 430HP. With the M-Engineering tune it has 485HP at the crank. So basically just software gives you GTS power.
It's important to analyze the area under the curve both in HP and TQ. You can see the darker regions showing the gains.
Horsepower (WHP):
Once you are into the throttle and boost ramps, the power is quite obvious. It holds strong until about 6.5K rpms with huge gains over stock. This is common with turbocharged vehicles as increases to boost pressure can add torque/power pretty instantly. Up top the gains are not as dramatic because of the airflow restrictions in the stock intake/exhaust and the turbo geometry. To make more power up top, we'll need to increase airflow and reduce restriction. We'll do that through some bolt-ons and custom tuning here shortly. We'll also be doing the S/GTS (and Pure) turbochargers as well along in the build so will be able to compare the effect of turbo sizing. Torque (FT-LBS):
Here you can also see the massive increase to torque delivery which is what is making the power. This is a massive area under the curve! This is important because this is essentially a graph of "real world" feel. You're going to feel that huge increase in torque every time you push into the throttle. Most 992s will live in the 3-5K RPM range running around town and even having a little fun/joy with the car.
WOW! Those are impressive numbers, even stock! I know that many take the wheel power and multiply by 1.15 to account for drivetrain loss, which is a really rough estimate, but more importantly is before and after results on the same machine with same conditions. But regardless, 375hp WHP stock? Yup, Porsche is under rating the engine for sure.
Just looked at your GTS video. Stock HP was 408 WHP (on a hot day) vs 473 stock, which is showing a 14% drivetrain loss. So is the Base C2 really under rated more than other models or is this just a unicorn car with abnormal power stock? We'll never know. But at least it shows that Porsche is not underrating all models equally, for whatever that's worth. Interesting stuff to bench-race over.
We installed the BMC High Flow Air Filters. There's a slight bit of extra induction/turbo noise, easier to hear with the windows down but overall not much of a difference. As far as performance, they aren't going to do much but these are lifetime filters and as we tune the car, the free flowing media will help.
I also wanted to include a video, helpful if you are replacing the OEM filters or upgrading to BMC.
nice job on the banks gauge...please come out with a kit to add the sport chrono clock for those that didnt get it as an option!
Agreed, that would be a cool mod, even for those of us with sport chrono that want to update. Would also be better if the Banks logo was removeable, just blank imho. What I am after is a true boost gauge. How high does this boost gauge max out at? Thanks guys.
Last edited by westsiderkg; 12-06-2022 at 01:01 PM.
12-05-2022, 11:04 PM
